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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Anderson DM, Aoyama R, Aparin A, Arkhipkin D, Aschenauer EC, Ashraf MU, Attri A, Averichev GS, Bai X, Bairathi V, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandenburg JD, Brandin AV, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Chakaberia I, Chaloupka P, Chang Z, Chatterjee A, Chattopadhyay S, Chen X, Chen JH, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, di Ruzza B, Didenko L, Dilks C, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Eppley G, Esha R, Esumi S, Evdokimov O, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Z, Filip P, Finch E, Fisyak Y, Flores CE, Fulek L, Gagliardi CA, Garand D, Geurts F, Gibson A, Girard M, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta S, Gupta A, Guryn W, Hamad AI, Hamed A, Haque R, Harris JW, He L, Heppelmann S, Heppelmann S, Hirsch A, Hoffmann GW, Horvat S, Huang B, Huang X, Huang HZ, Huang T, Huck P, Humanic TJ, Igo G, Jacobs WW, Jentsch A, Jia J, Jiang K, Jowzaee S, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Khan ZH, Kikoła DP, Kisel I, Kisiel A, Kochenda L, Koetke DD, Kosarzewski LK, Kraishan AF, Kravtsov P, Krueger K, Kumar L, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li Y, Li C, Li W, Li X, Li X, Lin T, Lisa MA, Liu Y, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Luo S, Ma GL, Ma R, Ma YG, Ma L, Magdy N, Majka R, Manion A, Margetis S, Markert C, Matis HS, McDonald D, McKinzie S, Meehan K, Mei JC, Miller ZW, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nigmatkulov G, Niida T, Nogach LV, Nonaka T, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Okorokov VA, Olvitt D, Page BS, Pak R, Pan YX, Pandit Y, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pile P, Pluta J, Poniatowska K, Porter J, Posik M, Poskanzer AM, Pruthi NK, Przybycien M, Putschke J, Qiu H, Quintero A, Ramachandran S, Ray RL, Reed R, Rehbein MJ, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Roth JD, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma A, Sharma MK, Sharma B, Shen WQ, Shi SS, Shi Z, Shou QY, Sichtermann EP, Sikora R, Simko M, Singha S, Skoby MJ, Smirnov D, Smirnov N, Solyst W, Song L, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stepanov M, Stock R, Strikhanov M, Stringfellow B, Sugiura T, Sumbera M, Summa B, Sun Z, Sun Y, Sun XM, Surrow B, Svirida DN, Tang AH, Tang Z, Tarnowsky T, Tawfik A, Thäder J, Thomas JH, Timmins AR, Tlusty D, Todoroki T, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Ullrich T, Underwood DG, Upsal I, Van Buren G, van Nieuwenhuizen G, Varma R, Vasiliev AN, Vertesi R, Videbæk F, Vokal S, Voloshin SA, Vossen A, Wang G, Wang F, Wang JS, Wang Y, Wang H, Wang Y, Webb JC, Webb G, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie W, Xie G, Xin K, Xu QH, Xu YF, Xu H, Xu Z, Xu N, Xu J, Yang C, Yang Y, Yang S, Yang Y, Yang Q, Yang Y, Ye Z, Ye Z, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang J, Zhang XP, Zhang S, Zhang Y, Zhang JB, Zhang Z, Zhang S, Zhang J, Zhao J, Zhong C, Zhou L, Zhu X, Zoulkarneeva Y, Zyzak M. Charge-Dependent Directed Flow in Cu+Au Collisions at sqrt[s_{NN}]=200 GeV. PHYSICAL REVIEW LETTERS 2017; 118:012301. [PMID: 28106415 DOI: 10.1103/physrevlett.118.012301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Indexed: 06/06/2023]
Abstract
We present the first measurement of charge-dependent directed flow in Cu+Au collisions at sqrt[s_{NN}]=200 GeV. The results are presented as a function of the particle transverse momentum and pseudorapidity for different centralities. A finite difference between the directed flow of positive and negative charged particles is observed that qualitatively agrees with the expectations from the effects of the initial strong electric field between two colliding ions with different nuclear charges. The measured difference in directed flow is much smaller than that obtained from the parton-hadron-string-dynamics model, which suggests that most of the electric charges, i.e., quarks and antiquarks, have not yet been created during the lifetime of the strong electric field, which is of the order of, or less than, 1 fm/c.
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Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahmad S, Ahn SU, Aiola S, Akindinov A, Alam SN, Albuquerque DSD, Aleksandrov D, Alessandro B, Alexandre D, Alfaro Molina R, Alici A, Alkin A, Almaraz JRM, Alme J, Alt T, Altinpinar S, Altsybeev I, Alves Garcia Prado C, Andrei C, Andronic A, Anguelov V, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arcelli S, Arnaldi R, Arnold OW, Arsene IC, Arslandok M, Audurier B, Augustinus A, Averbeck R, Azmi MD, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Balasubramanian S, Baldisseri A, Baral RC, Barbano AM, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartalini P, Barth K, Bartke J, Bartsch E, Basile M, Bastid N, Basu S, Bathen B, Batigne G, Batista Camejo A, Batyunya B, Batzing PC, Bearden IG, Beck H, Bedda C, Behera NK, Belikov I, Bellini F, Bello Martinez H, Bellwied R, Belmont R, Belmont-Moreno E, Beltran LGE, Belyaev V, Bencedi G, Beole S, Berceanu I, Bercuci A, Berdnikov Y, Berenyi D, Bertens RA, Berzano D, Betev L, Bhasin A, Bhat IR, Bhati AK, Bhattacharjee B, Bhom J, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biro G, Biswas R, Biswas S, Bjelogrlic S, Blair JT, Blau D, Blume C, Bock F, Bogdanov A, Bøggild H, Boldizsár L, Bombara M, Book J, Borel H, Borissov A, Borri M, Bossú F, Botta E, Bourjau C, Braun-Munzinger P, Bregant M, Breitner T, Broker TA, Browning TA, Broz M, Brucken EJ, Bruna E, Bruno GE, Budnikov D, Buesching H, Bufalino S, Buncic P, Busch O, Buthelezi Z, Butt JB, Buxton JT, Cabala J, Caffarri D, Cai X, Caines H, Calero Diaz L, Caliva A, Calvo Villar E, Camerini P, Carena F, Carena W, Carnesecchi F, Castillo Castellanos J, Castro AJ, Casula EAR, Ceballos Sanchez C, Cepila J, Cerello P, Cerkala J, Chang B, Chapeland S, Chartier M, Charvet JL, Chattopadhyay S, Chattopadhyay S, Chauvin A, Chelnokov V, Cherney M, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato DD, Cho S, Chochula P, Choi K, Chojnacki M, Choudhury S, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chung SU, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Conesa Balbastre G, Conesa Del Valle Z, Connors ME, Contreras JG, Cormier TM, Corrales Morales Y, Cortés Maldonado I, Cortese P, Cosentino MR, Costa F, Crochet P, Cruz Albino R, Cuautle E, Cunqueiro L, Dahms T, Dainese A, Danisch MC, Danu A, Das D, Das I, Das S, Dash A, Dash S, De S, De Caro A, de Cataldo G, de Conti C, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, De Souza RD, Deisting A, Deloff A, Dénes E, Deplano C, Dhankher P, Di Bari D, Di Mauro A, Di Nezza P, Di Ruzza B, Diaz Corchero MA, Dietel T, Dillenseger P, Divià R, Djuvsland Ø, Dobrin A, Domenicis Gimenez D, Dönigus B, Dordic O, Drozhzhova T, Dubey AK, Dubla A, Ducroux L, Dupieux P, Ehlers RJ, Elia D, Endress E, Engel H, Epple E, Erazmus B, Erdemir I, Erhardt F, Espagnon B, Estienne M, Esumi S, Eum J, Evans D, Evdokimov S, Eyyubova G, Fabbietti L, Fabris D, Faivre J, Fantoni A, Fasel M, Feldkamp L, Feliciello A, Feofilov G, Ferencei J, Fernández Téllez A, Ferreiro EG, Ferretti A, Festanti A, Feuillard VJG, Figiel J, Figueredo MAS, Filchagin S, Finogeev D, Fionda FM, Fiore EM, Fleck MG, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Francisco A, Frankenfeld U, Fronze GG, Fuchs U, Furget C, Furs A, Fusco Girard M, Gaardhøje JJ, Gagliardi M, Gago AM, Gajdosova K, Gallio M, Galvan CD, Gangadharan DR, Ganoti P, Gao C, Garabatos C, Garcia-Solis E, Gargiulo C, Gasik P, Gauger EF, Germain M, Gheata M, Ghosh P, Ghosh SK, Gianotti P, Giubellino P, Giubilato P, Gladysz-Dziadus E, Glässel P, Goméz Coral DM, Gomez Ramirez A, Gonzalez AS, Gonzalez V, González-Zamora P, Gorbunov S, Görlich L, Gotovac S, Grabski V, Grachov OA, Graczykowski LK, Graham KL, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Gronefeld JM, Grosse-Oetringhaus JF, Grosso R, Gruber L, Guber F, Guernane R, Guerzoni B, Gulbrandsen K, Gunji T, Gupta A, Gupta R, Haake R, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Hamon JC, Harris JW, Harton A, Hatzifotiadou D, Hayashi S, Heckel ST, Hellbär E, Helstrup H, Herghelegiu A, Herrera Corral G, Hess BA, Hetland KF, Hillemanns H, Hippolyte B, Horak D, Hosokawa R, Hristov P, Hughes C, Humanic TJ, Hussain N, Hussain T, Hutter D, Hwang DS, Ilkaev R, Inaba M, Incani E, Ippolitov M, Irfan M, Ivanov M, Ivanov V, Izucheev V, Jacak B, Jacazio N, Jacobs PM, Jadhav MB, Jadlovska S, Jadlovsky J, Jahnke C, Jakubowska MJ, Jang HJ, Janik MA, Jayarathna PHSY, Jena C, Jena S, Jimenez Bustamante RT, Jones PG, Jusko A, Kalinak P, Kalweit A, Kamin J, Kang JH, Kaplin V, Kar S, Karasu Uysal A, Karavichev O, Karavicheva T, Karayan L, Karpechev E, Kebschull U, Keidel R, Keijdener DLD, Keil M, Mohisin Khan M, Khan P, Khan SA, Khanzadeev A, Kharlov Y, Kileng B, Kim DW, Kim DJ, Kim D, Kim H, Kim JS, Kim J, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kiss G, Klay JL, Klein C, Klein J, Klein-Bösing C, Klewin S, Kluge A, Knichel ML, Knospe AG, Kobdaj C, Kofarago M, Kollegger T, Kolojvari A, Kondratiev V, Kondratyeva N, Kondratyuk E, Konevskikh A, Kopcik M, Kour M, Kouzinopoulos C, Kovalenko O, Kovalenko V, Kowalski M, Koyithatta Meethaleveedu G, Králik I, Kravčáková A, Krivda M, Krizek F, Kryshen E, Krzewicki M, Kubera AM, Kučera V, Kuhn C, Kuijer PG, Kumar A, Kumar J, Kumar L, Kumar S, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kweon MJ, Kwon Y, La Pointe SL, La Rocca P, Ladron de Guevara P, Lagana Fernandes C, Lakomov I, Langoy R, Lapidus K, Lara C, Lardeux A, Lattuca A, Laudi E, Lea R, Leardini L, Lee GR, Lee S, Lehas F, Lehner S, Lemmon RC, Lenti V, Leogrande E, León Monzón I, León Vargas H, Leoncino M, Lévai P, Li S, Li X, Lien J, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Ljunggren HM, Lodato DF, Loenne PI, Loginov V, Loizides C, Lopez X, López Torres E, Lowe A, Luettig P, Lunardon M, Luparello G, Lutz TH, Maevskaya A, Mager M, Mahajan S, Mahmood SM, Maire A, Majka RD, Malaev M, Maldonado Cervantes I, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manko V, Manso F, Manzari V, Marchisone M, Mareš J, Margagliotti GV, Margotti A, Margutti J, Marín A, Markert C, Marquard M, Martin NA, Martin Blanco J, Martinengo P, Martínez MI, Martínez García G, Martinez Pedreira M, Mas A, Masciocchi S, Masera M, Masoni A, Mastroserio A, Matyja A, Mayer C, Mazer J, Mazzoni MA, Mcdonald D, Meddi F, Melikyan Y, Menchaca-Rocha A, Meninno E, Mercado Pérez J, Meres M, Miake Y, Mieskolainen MM, Mikhaylov K, Milano L, Milosevic J, Mischke A, Mishra AN, Miśkowiec D, Mitra J, Mitu CM, Mohammadi N, Mohanty B, Molnar L, Montaño Zetina L, Montes E, Moreira De Godoy DA, Moreno LAP, Moretto S, Morreale A, Morsch A, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Mulligan JD, Munhoz MG, Münning K, Munzer RH, Murakami H, Murray S, Musa L, Musinsky J, Naik B, Nair R, Nandi BK, Nania R, Nappi E, Naru MU, Natal da Luz H, Nattrass C, Navarro SR, Nayak K, Nayak R, Nayak TK, Nazarenko S, Nedosekin A, Nellen L, Ng F, Nicassio M, Niculescu M, Niedziela J, Nielsen BS, Nikolaev S, Nikulin S, Nikulin V, Noferini F, Nomokonov P, Nooren G, Noris JCC, Norman J, Nyanin A, Nystrand J, Oeschler H, Oh S, Oh SK, Ohlson A, Okatan A, Okubo T, Oleniacz J, Oliveira Da Silva AC, Oliver MH, Onderwaater J, Oppedisano C, Orava R, Oravec M, Ortiz Velasquez A, Oskarsson A, Otwinowski J, Oyama K, Ozdemir M, Pachmayer Y, Pagano D, Pagano P, Paić G, Pal SK, Pan J, Pandey AK, Papikyan V, Pappalardo GS, Pareek P, Park WJ, Parmar S, Passfeld A, Paticchio V, Patra RN, Paul B, Pei H, Peitzmann T, Peng X, Pereira Da Costa H, Peresunko D, Perez Lezama E, Peskov V, Pestov Y, Petráček V, Petrov V, Petrovici M, Petta C, Piano S, Pikna M, Pillot P, Pimentel LODL, Pinazza O, Pinsky L, Piyarathna DB, Płoskoń M, Planinic M, Pluta J, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Polichtchouk B, Poljak N, Poonsawat W, Pop A, Poppenborg H, Porteboeuf-Houssais S, Porter J, Pospisil J, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puccio M, Puddu G, Pujahari P, Punin V, Putschke J, Qvigstad H, Rachevski A, Raha S, Rajput S, Rak J, Rakotozafindrabe A, Ramello L, Rami F, Raniwala R, Raniwala S, Räsänen SS, Rascanu BT, Rathee D, Read KF, Redlich K, Reed RJ, Rehman A, Reichelt P, Reidt F, Ren X, Renfordt R, Reolon AR, Reshetin A, Reygers K, Riabov V, Ricci RA, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Ristea C, Rocco E, Rodríguez Cahuantzi M, Rodriguez Manso A, Røed K, Rogochaya E, Rohr D, Röhrich D, Ronchetti F, Ronflette L, Rosnet P, Rossi A, Roukoutakis F, Roy A, Roy C, Roy P, Rubio Montero AJ, Rui R, Russo R, Ryabinkin E, Ryabov Y, Rybicki A, Saarinen S, Sadhu S, Sadovsky S, Šafařík K, Sahlmuller B, Sahoo P, Sahoo R, Sahoo S, Sahu PK, Saini J, Sakai S, Saleh MA, Salzwedel J, Sambyal S, Samsonov V, Šándor L, Sandoval A, Sano M, Sarkar D, Sarkar N, Sarma P, Scapparone E, Scarlassara F, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schmidt M, Schuchmann S, Schukraft J, Schulc M, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott R, Šefčík M, Seger JE, Sekiguchi Y, Sekihata D, Selyuzhenkov I, Senosi K, Senyukov S, Serradilla E, Sevcenco A, Shabanov A, Shabetai A, Shadura O, Shahoyan R, Shahzad MI, Shangaraev A, Sharma A, Sharma M, Sharma M, Sharma N, Sheikh AI, Shigaki K, Shou Q, Shtejer K, Sibiriak Y, Siddhanta S, Sielewicz KM, Siemiarczuk T, Silvermyr D, Silvestre C, Simatovic G, Simonetti G, Singaraju R, Singh R, Singhal V, Sinha T, Sitar B, Sitta M, Skaali TB, Slupecki M, Smirnov N, Snellings RJM, Snellman TW, Song J, Song M, Song Z, Soramel F, Sorensen S, Sozzi F, Spacek M, Spiriti E, Sputowska I, Spyropoulou-Stassinaki M, Stachel J, Stan I, Stankus P, Stenlund E, Steyn G, Stiller JH, Stocco D, Strmen P, Suaide AAP, Sugitate T, Suire C, Suleymanov M, Suljic M, Sultanov R, Šumbera M, Sumowidagdo S, Szabo A, Szarka I, Szczepankiewicz A, Szymanski M, Tabassam U, Takahashi J, Tambave GJ, Tanaka N, Tarhini M, Tariq M, Tarzila MG, Tauro A, Tejeda Muñoz G, Telesca A, Terasaki K, Terrevoli C, Teyssier B, Thäder J, Thakur D, Thomas D, Tieulent R, Tikhonov A, Timmins AR, Toia A, Trogolo S, Trombetta G, Trubnikov V, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Tveter TS, Ullaland K, Uras A, Usai GL, Utrobicic A, Vala M, Valencia Palomo L, Vallero S, Van Der Maarel J, Van Hoorne JW, van Leeuwen M, Vanat T, Vande Vyvre P, Varga D, Vargas A, Vargyas M, Varma R, Vasileiou M, Vasiliev A, Vauthier A, Vázquez Doce O, Vechernin V, Veen AM, Veldhoen M, Velure A, Vercellin E, Vergara Limón S, Vernet R, Verweij M, Vickovic L, Viinikainen J, Vilakazi Z, Villalobos Baillie O, Villatoro Tello A, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Vislavicius V, Viyogi YP, Vodopyanov A, Völkl MA, Voloshin K, Voloshin SA, Volpe G, von Haller B, Vorobyev I, Vranic D, Vrláková J, Vulpescu B, Wagner B, Wagner J, Wang H, Wang M, Watanabe D, Watanabe Y, Weber M, Weber SG, Weiser DF, Wessels JP, Westerhoff U, Whitehead AM, Wiechula J, Wikne J, Wilk G, Wilkinson J, Williams MCS, Windelband B, Winn M, Yang P, Yano S, Yasin Z, Yin Z, Yokoyama H, Yoo IK, Yoon JH, Yurchenko V, Zaborowska A, Zaccolo V, Zaman A, Zampolli C, Zanoli HJC, Zaporozhets S, Zardoshti N, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zgura IS, Zhalov M, Zhang H, Zhang X, Zhang Y, Zhang C, Zhang Z, Zhao C, Zhigareva N, Zhou D, Zhou Y, Zhou Z, Zhu H, Zhu J, Zichichi A, Zimmermann A, Zimmermann MB, Zinovjev G, Zyzak M. Correlated Event-by-Event Fluctuations of Flow Harmonics in Pb-Pb Collisions at sqrt[s_{NN}]=2.76 TeV. PHYSICAL REVIEW LETTERS 2016; 117:182301. [PMID: 27835023 DOI: 10.1103/physrevlett.117.182301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Indexed: 06/06/2023]
Abstract
We report the measurements of correlations between event-by-event fluctuations of amplitudes of anisotropic flow harmonics in nucleus-nucleus collisions, obtained for the first time using a new analysis method based on multiparticle cumulants in mixed harmonics. This novel method is robust against systematic biases originating from nonflow effects and by construction any dependence on symmetry planes is eliminated. We demonstrate that correlations of flow harmonics exhibit a better sensitivity to medium properties than the individual flow harmonics. The new measurements are performed in Pb-Pb collisions at the center-of-mass energy per nucleon pair of sqrt[s_{NN}]=2.76 TeV by the ALICE experiment at the Large Hadron Collider. The centrality dependence of correlation between event-by-event fluctuations of the elliptic v_{2} and quadrangular v_{4} flow harmonics, as well as of anticorrelation between v_{2} and triangular v_{3} flow harmonics are presented. The results cover two different regimes of the initial state configurations: geometry dominated (in midcentral collisions) and fluctuation dominated (in the most central collisions). Comparisons are made to predictions from Monte Carlo Glauber, viscous hydrodynamics, ampt, and hijing models. Together with the existing measurements of the individual flow harmonics the presented results provide further constraints on the initial conditions and the transport properties of the system produced in heavy-ion collisions.
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Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahmad S, Ahn SU, Aiola S, Akindinov A, Alam SN, Aleksandrov D, Alessandro B, Alexandre D, Alfaro Molina R, Alici A, Alkin A, Almaraz JRM, Alme J, Alt T, Altinpinar S, Altsybeev I, Alves Garcia Prado C, Andrei C, Andronic A, Anguelov V, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arcelli S, Arnaldi R, Arnold OW, Arsene IC, Arslandok M, Audurier B, Augustinus A, Averbeck R, Azmi MD, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Balasubramanian S, Baldisseri A, Baral RC, Barbano AM, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartalini P, Barth K, Bartke J, Bartsch E, Basile M, Bastid N, Basu S, Bathen B, Batigne G, Batista Camejo A, Batyunya B, Batzing PC, Bearden IG, Beck H, Bedda C, Behera NK, Belikov I, Bellini F, Bello Martinez H, Bellwied R, Belmont R, Belmont-Moreno E, Belyaev V, Benacek P, Bencedi G, Beole S, Berceanu I, Bercuci A, Berdnikov Y, Berenyi D, Bertens RA, Berzano D, Betev L, Bhasin A, Bhat IR, Bhati AK, Bhattacharjee B, Bhom J, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biro G, Biswas R, Biswas S, Bjelogrlic S, Blair JT, Blau D, Blume C, Bock F, Bogdanov A, Bøggild H, Boldizsár L, Bombara M, Book J, Borel H, Borissov A, Borri M, Bossú F, Botta E, Bourjau C, Braun-Munzinger P, Bregant M, Breitner T, Broker TA, Browning TA, Broz M, Brucken EJ, Bruna E, Bruno GE, Budnikov D, Buesching H, Bufalino S, Buncic P, Busch O, Buthelezi Z, Butt JB, Buxton JT, Caffarri D, Cai X, Caines H, Calero Diaz L, Caliva A, Calvo Villar E, Camerini P, Carena F, Carena W, Carnesecchi F, Castillo Castellanos J, Castro AJ, Casula EAR, Ceballos Sanchez C, Cerello P, Cerkala J, Chang B, Chapeland S, Chartier M, Charvet JL, Chattopadhyay S, Chattopadhyay S, Chauvin A, Chelnokov V, Cherney M, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato DD, Cho S, Chochula P, Choi K, Chojnacki M, Choudhury S, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chung SU, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Conesa Balbastre G, Conesa Del Valle Z, Connors ME, Contreras JG, Cormier TM, Corrales Morales Y, Cortés Maldonado I, Cortese P, Cosentino MR, Costa F, Crochet P, Cruz Albino R, Cuautle E, Cunqueiro L, Dahms T, Dainese A, Danisch MC, Danu A, Das D, Das I, Das S, Dash A, Dash S, De S, De Caro A, de Cataldo G, de Conti C, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, Deisting A, Deloff A, Dénes E, Deplano C, Dhankher P, Di Bari D, Di Mauro A, Di Nezza P, Diaz Corchero MA, Dietel T, Dillenseger P, Divià R, Djuvsland Ø, Dobrin A, Domenicis Gimenez D, Dönigus B, Dordic O, Drozhzhova T, Dubey AK, Dubla A, Ducroux L, Dupieux P, Ehlers RJ, Elia D, Endress E, Engel H, Epple E, Erazmus B, Erdemir I, Erhardt F, Espagnon B, Estienne M, Esumi S, Eum J, Evans D, Evdokimov S, Eyyubova G, Fabbietti L, Fabris D, Faivre J, Fantoni A, Fasel M, Feldkamp L, Feliciello A, Feofilov G, Ferencei J, Fernández Téllez A, Ferreiro EG, Ferretti A, Festanti A, Feuillard VJG, Figiel J, Figueredo MAS, Filchagin S, Finogeev D, Fionda FM, Fiore EM, Fleck MG, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Frankenfeld U, Fronze GG, Fuchs U, Furget C, Furs A, Fusco Girard M, Gaardhøje JJ, Gagliardi M, Gago AM, Gallio M, Gangadharan DR, Ganoti P, Gao C, Garabatos C, Garcia-Solis E, Gargiulo C, Gasik P, Gauger EF, Germain M, Gheata A, Gheata M, Ghosh P, Ghosh SK, Gianotti P, Giubellino P, Giubilato P, Gladysz-Dziadus E, Glässel P, Goméz Coral DM, Gomez Ramirez A, Gonzalez V, González-Zamora P, Gorbunov S, Görlich L, Gotovac S, Grabski V, Grachov OA, Graczykowski LK, Graham KL, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Gronefeld JM, Grosse-Oetringhaus JF, Grossiord JY, Grosso R, Guber F, Guernane R, Guerzoni B, Gulbrandsen K, Gunji T, Gupta A, Gupta R, Haake R, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Hamon JC, Harris JW, Harton A, Hatzifotiadou D, Hayashi S, Heckel ST, Helstrup H, Herghelegiu A, Herrera Corral G, Hess BA, Hetland KF, Hillemanns H, Hippolyte B, Horak D, Hosokawa R, Hristov P, Huang M, Humanic TJ, Hussain N, Hussain T, Hutter D, Hwang DS, Ilkaev R, Inaba M, Incani E, Ippolitov M, Irfan M, Ivanov M, Ivanov V, Izucheev V, Jacazio N, Jacobs PM, Jadhav MB, Jadlovska S, Jadlovsky J, Jahnke C, Jakubowska MJ, Jang HJ, Janik MA, Jayarathna PHSY, Jena C, Jena S, Jimenez Bustamante RT, Jones PG, Jusko A, Kalinak P, Kalweit A, Kamin J, Kang JH, Kaplin V, Kar S, Karasu Uysal A, Karavichev O, Karavicheva T, Karayan L, Karpechev E, Kebschull U, Keidel R, Keijdener DLD, Keil M, Mohisin Khan M, Khan P, Khan SA, Khanzadeev A, Kharlov Y, Kileng B, Kim DW, Kim DJ, Kim D, Kim H, Kim JS, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kiss G, Klay JL, Klein C, Klein J, Klein-Bösing C, Klewin S, Kluge A, Knichel ML, Knospe AG, Kobdaj C, Kofarago M, Kollegger T, Kolojvari A, Kondratiev V, Kondratyeva N, Kondratyuk E, Konevskikh A, Kopcik M, Kostarakis P, Kour M, Kouzinopoulos C, Kovalenko O, Kovalenko V, Kowalski M, Koyithatta Meethaleveedu G, Králik I, Kravčáková A, Kretz M, Krivda M, Krizek F, Kryshen E, Krzewicki M, Kubera AM, Kučera V, Kuhn C, Kuijer PG, Kumar A, Kumar J, Kumar L, Kumar S, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kweon MJ, Kwon Y, La Pointe SL, La Rocca P, Ladron de Guevara P, Lagana Fernandes C, Lakomov I, Langoy R, Lara C, Lardeux A, Lattuca A, Laudi E, Lea R, Leardini L, Lee GR, Lee S, Lehas F, Lemmon RC, Lenti V, Leogrande E, León Monzón I, León Vargas H, Leoncino M, Lévai P, Li S, Li X, Lien J, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Ljunggren HM, Lodato DF, Loenne PI, Loginov V, Loizides C, Lopez X, López Torres E, Lowe A, Luettig P, Lunardon M, Luparello G, Lutz TH, Maevskaya A, Mager M, Mahajan S, Mahmood SM, Maire A, Majka RD, Malaev M, Maldonado Cervantes I, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manko V, Manso F, Manzari V, Marchisone M, Mareš J, Margagliotti GV, Margotti A, Margutti J, Marín A, Markert C, Marquard M, Martin NA, Martin Blanco J, Martinengo P, Martínez MI, Martínez García G, Martinez Pedreira M, Mas A, Masciocchi S, Masera M, Masoni A, Massacrier L, Mastroserio A, Matyja A, Mayer C, Mazer J, Mazzoni MA, Mcdonald D, Meddi F, Melikyan Y, Menchaca-Rocha A, Meninno E, Mercado Pérez J, Meres M, Miake Y, Mieskolainen MM, Mikhaylov K, Milano L, Milosevic J, Minervini LM, Mischke A, Mishra AN, Miśkowiec D, Mitra J, Mitu CM, Mohammadi N, Mohanty B, Molnar L, Montaño Zetina L, Montes E, Moreira De Godoy DA, Moreno LAP, Moretto S, Morreale A, Morsch A, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Mulligan JD, Munhoz MG, Munzer RH, Murakami H, Murray S, Musa L, Musinsky J, Naik B, Nair R, Nandi BK, Nania R, Nappi E, Naru MU, Natal da Luz H, Nattrass C, Navarro SR, Nayak K, Nayak R, Nayak TK, Nazarenko S, Nedosekin A, Nellen L, Ng F, Nicassio M, Niculescu M, Niedziela J, Nielsen BS, Nikolaev S, Nikulin S, Nikulin V, Noferini F, Nomokonov P, Nooren G, Noris JCC, Norman J, Nyanin A, Nystrand J, Oeschler H, Oh S, Oh SK, Ohlson A, Okatan A, Okubo T, Olah L, Oleniacz J, Oliveira Da Silva AC, Oliver MH, Onderwaater J, Oppedisano C, Orava R, Ortiz Velasquez A, Oskarsson A, Otwinowski J, Oyama K, Ozdemir M, Pachmayer Y, Pagano P, Paić G, Pal SK, Pan J, Pandey AK, Papikyan V, Pappalardo GS, Pareek P, Park WJ, Parmar S, Passfeld A, Paticchio V, Patra RN, Paul B, Pei H, Peitzmann T, Pereira Da Costa H, Peresunko D, Pérez Lara CE, Perez Lezama E, Peskov V, Pestov Y, Petráček V, Petrov V, Petrovici M, Petta C, Piano S, Pikna M, Pillot P, Pimentel LODL, Pinazza O, Pinsky L, Piyarathna DB, Płoskoń M, Planinic M, Pluta J, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Polichtchouk B, Poljak N, Poonsawat W, Pop A, Porteboeuf-Houssais S, Porter J, Pospisil J, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puccio M, Puddu G, Pujahari P, Punin V, Putschke J, Qvigstad H, Rachevski A, Raha S, Rajput S, Rak J, Rakotozafindrabe A, Ramello L, Rami F, Raniwala R, Raniwala S, Räsänen SS, Rascanu BT, Rathee D, Read KF, Redlich K, Reed RJ, Rehman A, Reichelt P, Reidt F, Ren X, Renfordt R, Reolon AR, Reshetin A, Revol JP, Reygers K, Riabov V, Ricci RA, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Ristea C, Rocco E, Rodríguez Cahuantzi M, Rodriguez Manso A, Røed K, Rogochaya E, Rohr D, Röhrich D, Romita R, Ronchetti F, Ronflette L, Rosnet P, Rossi A, Roukoutakis F, Roy A, Roy C, Roy P, Rubio Montero AJ, Rui R, Russo R, Ryabinkin E, Ryabov Y, Rybicki A, Sadovsky S, Šafařík K, Sahlmuller B, Sahoo P, Sahoo R, Sahoo S, Sahu PK, Saini J, Sakai S, Saleh MA, Salzwedel J, Sambyal S, Samsonov V, Šándor L, Sandoval A, Sano M, Sarkar D, Sarma P, Scapparone E, Scarlassara F, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schuchmann S, Schukraft J, Schulc M, Schuster T, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott R, Šefčík M, Seger JE, Sekiguchi Y, Sekihata D, Selyuzhenkov I, Senosi K, Senyukov S, Serradilla E, Sevcenco A, Shabanov A, Shabetai A, Shadura O, Shahoyan R, Shangaraev A, Sharma A, Sharma M, Sharma M, Sharma N, Shigaki K, Shtejer K, Sibiriak Y, Siddhanta S, Sielewicz KM, Siemiarczuk T, Silvermyr D, Silvestre C, Simatovic G, Simonetti G, Singaraju R, Singh R, Singha S, Singhal V, Sinha BC, Sinha T, Sitar B, Sitta M, Skaali TB, Slupecki M, Smirnov N, Snellings RJM, Snellman TW, Søgaard C, Song J, Song M, Song Z, Soramel F, Sorensen S, de Souza RD, Sozzi F, Spacek M, Spiriti E, Sputowska I, Spyropoulou-Stassinaki M, Stachel J, Stan I, Stankus P, Stefanek G, Stenlund E, Steyn G, Stiller JH, Stocco D, Strmen P, Suaide AAP, Sugitate T, Suire C, Suleymanov M, Suljic M, Sultanov R, Šumbera M, Szabo A, Szanto de Toledo A, Szarka I, Szczepankiewicz A, Szymanski M, Tabassam U, Takahashi J, Tambave GJ, Tanaka N, Tangaro MA, Tarhini M, Tariq M, Tarzila MG, Tauro A, Tejeda Muñoz G, Telesca A, Terasaki K, Terrevoli C, Teyssier B, Thäder J, Thomas D, Tieulent R, Timmins AR, Toia A, Trogolo S, Trombetta G, Trubnikov V, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Tveter TS, Ullaland K, Uras A, Usai GL, Utrobicic A, Vajzer M, Vala M, Valencia Palomo L, Vallero S, Van Der Maarel J, Van Hoorne JW, van Leeuwen M, Vanat T, Vande Vyvre P, Varga D, Vargas A, Vargyas M, Varma R, Vasileiou M, Vasiliev A, Vauthier A, Vechernin V, Veen AM, Veldhoen M, Velure A, Venaruzzo M, Vercellin E, Vergara Limón S, Vernet R, Verweij M, Vickovic L, Viesti G, Viinikainen J, Vilakazi Z, Villalobos Baillie O, Villatoro Tello A, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Vislavicius V, Viyogi YP, Vodopyanov A, Völkl MA, Voloshin K, Voloshin SA, Volpe G, von Haller B, Vorobyev I, Vranic D, Vrláková J, Vulpescu B, Wagner B, Wagner J, Wang H, Wang M, Watanabe D, Watanabe Y, Weber M, Weber SG, Weiser DF, Wessels JP, Westerhoff U, Whitehead AM, Wiechula J, Wikne J, Wilk G, Wilkinson J, Williams MCS, Windelband B, Winn M, Yang H, Yang P, Yano S, Yasar C, Yin Z, Yokoyama H, Yoo IK, Yoon JH, Yurchenko V, Yushmanov I, Zaborowska A, Zaccolo V, Zaman A, Zampolli C, Zanoli HJC, Zaporozhets S, Zardoshti N, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zgura IS, Zhalov M, Zhang H, Zhang X, Zhang Y, Zhang C, Zhang Z, Zhao C, Zhigareva N, Zhou D, Zhou Y, Zhou Z, Zhu H, Zhu J, Zichichi A, Zimmermann A, Zimmermann MB, Zinovjev G, Zyzak M. Centrality Dependence of the Charged-Particle Multiplicity Density at Midrapidity in Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV. PHYSICAL REVIEW LETTERS 2016; 116:222302. [PMID: 27314715 DOI: 10.1103/physrevlett.116.222302] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Indexed: 06/06/2023]
Abstract
The pseudorapidity density of charged particles, dN_{ch}/dη, at midrapidity in Pb-Pb collisions has been measured at a center-of-mass energy per nucleon pair of sqrt[s_{NN}]=5.02 TeV. For the 5% most central collisions, we measure a value of 1943±54. The rise in dN_{ch}/dη as a function of sqrt[s_{NN}] is steeper than that observed in proton-proton collisions and follows the trend established by measurements at lower energy. The increase of dN_{ch}/dη as a function of the average number of participant nucleons, ⟨N_{part}⟩, calculated in a Glauber model, is compared with the previous measurement at sqrt[s_{NN}]=2.76 TeV. A constant factor of about 1.2 describes the increase in dN_{ch}/dη from sqrt[s_{NN}]=2.76 to 5.02 TeV for all centrality classes, within the measured range of 0%-80% centrality. The results are also compared to models based on different mechanisms for particle production in nuclear collisions.
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Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahn SU, Aiola S, Akindinov A, Alam SN, Aleksandrov D, Alessandro B, Alexandre D, Alfaro Molina R, Alici A, Alkin A, Almaraz JRM, Alme J, Alt T, Altinpinar S, Altsybeev I, Alves Garcia Prado C, Andrei C, Andronic A, Anguelov V, Anielski J, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arcelli S, Arnaldi R, Arnold OW, Arsene IC, Arslandok M, Audurier B, Augustinus A, Averbeck R, Azmi MD, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Baldisseri A, Baral RC, Barbano AM, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartalini P, Barth K, Bartke J, Bartsch E, Basile M, Bastid N, Basu S, Bathen B, Batigne G, Batista Camejo A, Batyunya B, Batzing PC, Bearden IG, Beck H, Bedda C, Behera NK, Belikov I, Bellini F, Bello Martinez H, Bellwied R, Belmont R, Belmont-Moreno E, Belyaev V, Bencedi G, Beole S, Berceanu I, Bercuci A, Berdnikov Y, Berenyi D, Bertens RA, Berzano D, Betev L, Bhasin A, Bhat IR, Bhati AK, Bhattacharjee B, Bhom J, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biswas R, Biswas S, Bjelogrlic S, Blair JT, Blau D, Blume C, Bock F, Bogdanov A, Bøggild H, Boldizsár L, Bombara M, Book J, Borel H, Borissov A, Borri M, Bossú F, Botta E, Böttger S, Bourjau C, Braun-Munzinger P, Bregant M, Breitner T, Broker TA, Browning TA, Broz M, Brucken EJ, Bruna E, Bruno GE, Budnikov D, Buesching H, Bufalino S, Buncic P, Busch O, Buthelezi Z, Butt JB, Buxton JT, Caffarri D, Cai X, Caines H, Calero Diaz L, Caliva A, Calvo Villar E, Camerini P, Carena F, Carena W, Carnesecchi F, Castillo Castellanos J, Castro AJ, Casula EAR, Ceballos Sanchez C, Cepila J, Cerello P, Cerkala J, Chang B, Chapeland S, Chartier M, Charvet JL, Chattopadhyay S, Chattopadhyay S, Chelnokov V, Cherney M, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato DD, Cho S, Chochula P, Choi K, Chojnacki M, Choudhury S, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chung SU, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Conesa Balbastre G, Conesa Del Valle Z, Connors ME, Contreras JG, Cormier TM, Corrales Morales Y, Cortés Maldonado I, Cortese P, Cosentino MR, Costa F, Crochet P, Cruz Albino R, Cuautle E, Cunqueiro L, Dahms T, Dainese A, Danu A, Das D, Das I, Das S, Dash A, Dash S, De S, De Caro A, de Cataldo G, de Conti C, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, Deisting A, Deloff A, Dénes E, Deplano C, Dhankher P, Di Bari D, Di Mauro A, Di Nezza P, Diaz Corchero MA, Dietel T, Dillenseger P, Divià R, Djuvsland Ø, Dobrin A, Domenicis Gimenez D, Dönigus B, Dordic O, Drozhzhova T, Dubey AK, Dubla A, Ducroux L, Dupieux P, Ehlers RJ, Elia D, Engel H, Epple E, Erazmus B, Erdemir I, Erhardt F, Espagnon B, Estienne M, Esumi S, Eum J, Evans D, Evdokimov S, Eyyubova G, Fabbietti L, Fabris D, Faivre J, Fantoni A, Fasel M, Feldkamp L, Feliciello A, Feofilov G, Ferencei J, Fernández Téllez A, Ferreiro EG, Ferretti A, Festanti A, Feuillard VJG, Figiel J, Figueredo MAS, Filchagin S, Finogeev D, Fionda FM, Fiore EM, Fleck MG, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Frankenfeld U, Fuchs U, Furget C, Furs A, Fusco Girard M, Gaardhøje JJ, Gagliardi M, Gago AM, Gallio M, Gangadharan DR, Ganoti P, Gao C, Garabatos C, Garcia-Solis E, Gargiulo C, Gasik P, Gauger EF, Germain M, Gheata A, Gheata M, Ghosh P, Ghosh SK, Gianotti P, Giubellino P, Giubilato P, Gladysz-Dziadus E, Glässel P, Goméz Coral DM, Gomez Ramirez A, Gonzalez V, González-Zamora P, Gorbunov S, Görlich L, Gotovac S, Grabski V, Grachov OA, Graczykowski LK, Graham KL, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Gronefeld JM, Grosse-Oetringhaus JF, Grossiord JY, Grosso R, Guber F, Guernane R, Guerzoni B, Gulbrandsen K, Gunji T, Gupta A, Gupta R, Haake R, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Harris JW, Harton A, Hatzifotiadou D, Hayashi S, Heckel ST, Heide M, Helstrup H, Herghelegiu A, Herrera Corral G, Hess BA, Hetland KF, Hillemanns H, Hippolyte B, Hosokawa R, Hristov P, Huang M, Humanic TJ, Hussain N, Hussain T, Hutter D, Hwang DS, Ilkaev R, Inaba M, Ippolitov M, Irfan M, Ivanov M, Ivanov V, Izucheev V, Jacobs PM, Jadhav MB, Jadlovska S, Jadlovsky J, Jahnke C, Jakubowska MJ, Jang HJ, Janik MA, Jayarathna PHSY, Jena C, Jena S, Jimenez Bustamante RT, Jones PG, Jung H, Jusko A, Kalinak P, Kalweit A, Kamin J, Kang JH, Kaplin V, Kar S, Karasu Uysal A, Karavichev O, Karavicheva T, Karayan L, Karpechev E, Kebschull U, Keidel R, Keijdener DLD, Keil M, Mohisin Khan M, Khan P, Khan SA, Khanzadeev A, Kharlov Y, Kileng B, Kim DW, Kim DJ, Kim D, Kim H, Kim JS, Kim M, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kiss G, Klay JL, Klein C, Klein J, Klein-Bösing C, Klewin S, Kluge A, Knichel ML, Knospe AG, Kobayashi T, Kobdaj C, Kofarago M, Kollegger T, Kolojvari A, Kondratiev V, Kondratyeva N, Kondratyuk E, Konevskikh A, Kopcik M, Kour M, Kouzinopoulos C, Kovalenko O, Kovalenko V, Kowalski M, Koyithatta Meethaleveedu G, Králik I, Kravčáková A, Kretz M, Krivda M, Krizek F, Kryshen E, Krzewicki M, Kubera AM, Kučera V, Kuhn C, Kuijer PG, Kumar A, Kumar J, Kumar L, Kumar S, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kweon MJ, Kwon Y, La Pointe SL, La Rocca P, Ladron de Guevara P, Lagana Fernandes C, Lakomov I, Langoy R, Lara C, Lardeux A, Lattuca A, Laudi E, Lea R, Leardini L, Lee GR, Lee S, Lehas F, Lemmon RC, Lenti V, Leogrande E, León Monzón I, León Vargas H, Leoncino M, Lévai P, Li S, Li X, Lien J, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Ljunggren HM, Lodato DF, Loenne PI, Loginov V, Loizides C, Lopez X, López Torres E, Lowe A, Luettig P, Lunardon M, Luparello G, Maevskaya A, Mager M, Mahajan S, Mahmood SM, Maire A, Majka RD, Malaev M, Maldonado Cervantes I, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manko V, Manso F, Manzari V, Marchisone M, Mareš J, Margagliotti GV, Margotti A, Margutti J, Marín A, Markert C, Marquard M, Martin NA, Martin Blanco J, Martinengo P, Martínez MI, Martínez García G, Martinez Pedreira M, Mas A, Masciocchi S, Masera M, Masoni A, Massacrier L, Mastroserio A, Matyja A, Mayer C, Mazer J, Mazzoni MA, Mcdonald D, Meddi F, Melikyan Y, Menchaca-Rocha A, Meninno E, Mercado Pérez J, Meres M, Miake Y, Mieskolainen MM, Mikhaylov K, Milano L, Milosevic J, Minervini LM, Mischke A, Mishra AN, Miśkowiec D, Mitra J, Mitu CM, Mohammadi N, Mohanty B, Molnar L, Montaño Zetina L, Montes E, Moreira De Godoy DA, Moreno LAP, Moretto S, Morreale A, Morsch A, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Mulligan JD, Munhoz MG, Munzer RH, Murray S, Musa L, Musinsky J, Naik B, Nair R, Nandi BK, Nania R, Nappi E, Naru MU, Natal da Luz H, Nattrass C, Nayak K, Nayak TK, Nazarenko S, Nedosekin A, Nellen L, Ng F, Nicassio M, Niculescu M, Niedziela J, Nielsen BS, Nikolaev S, Nikulin S, Nikulin V, Noferini F, Nomokonov P, Nooren G, Noris JCC, Norman J, Nyanin A, Nystrand J, Oeschler H, Oh S, Oh SK, Ohlson A, Okatan A, Okubo T, Olah L, Oleniacz J, Oliveira Da Silva AC, Oliver MH, Onderwaater J, Oppedisano C, Orava R, Ortiz Velasquez A, Oskarsson A, Otwinowski J, Oyama K, Ozdemir M, Pachmayer Y, Pagano P, Paić G, Pal SK, Pan J, Pandey AK, Papcun P, Papikyan V, Pappalardo GS, Pareek P, Park WJ, Parmar S, Passfeld A, Paticchio V, Patra RN, Paul B, Pei H, Peitzmann T, Pereira Da Costa H, Pereira De Oliveira Filho E, Peresunko D, Pérez Lara CE, Perez Lezama E, Peskov V, Pestov Y, Petráček V, Petrov V, Petrovici M, Petta C, Piano S, Pikna M, Pillot P, Pinazza O, Pinsky L, Piyarathna DB, Płoskoń M, Planinic M, Pluta J, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Polichtchouk B, Poljak N, Poonsawat W, Pop A, Porteboeuf-Houssais S, Porter J, Pospisil J, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puccio M, Puddu G, Pujahari P, Punin V, Putschke J, Qvigstad H, Rachevski A, Raha S, Rajput S, Rak J, Rakotozafindrabe A, Ramello L, Rami F, Raniwala R, Raniwala S, Räsänen SS, Rascanu BT, Rathee D, Read KF, Redlich K, Reed RJ, Rehman A, Reichelt P, Reidt F, Ren X, Renfordt R, Reolon AR, Reshetin A, Revol JP, Reygers K, Riabov V, Ricci RA, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Ristea C, Rocco E, Rodríguez Cahuantzi M, Rodriguez Manso A, Røed K, Rogochaya E, Rohr D, Röhrich D, Romita R, Ronchetti F, Ronflette L, Rosnet P, Rossi A, Roukoutakis F, Roy A, Roy C, Roy P, Rubio Montero AJ, Rui R, Russo R, Ryabinkin E, Ryabov Y, Rybicki A, Sadovsky S, Šafařík K, Sahlmuller B, Sahoo P, Sahoo R, Sahoo S, Sahu PK, Saini J, Sakai S, Saleh MA, Salzwedel J, Sambyal S, Samsonov V, Šándor L, Sandoval A, Sano M, Sarkar D, Scapparone E, Scarlassara F, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schuchmann S, Schukraft J, Schulc M, Schuster T, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott R, Šefčík M, Seger JE, Sekiguchi Y, Sekihata D, Selyuzhenkov I, Senosi K, Senyukov S, Serradilla E, Sevcenco A, Shabanov A, Shabetai A, Shadura O, Shahoyan R, Shangaraev A, Sharma A, Sharma M, Sharma M, Sharma N, Shigaki K, Shtejer K, Sibiriak Y, Siddhanta S, Sielewicz KM, Siemiarczuk T, Silvermyr D, Silvestre C, Simatovic G, Simonetti G, Singaraju R, Singh R, Singha S, Singhal V, Sinha BC, Sinha T, Sitar B, Sitta M, Skaali TB, Slupecki M, Smirnov N, Snellings RJM, Snellman TW, Søgaard C, Song J, Song M, Song Z, Soramel F, Sorensen S, Sozzi F, Spacek M, Spiriti E, Sputowska I, Spyropoulou-Stassinaki M, Stachel J, Stan I, Stefanek G, Stenlund E, Steyn G, Stiller JH, Stocco D, Strmen P, Suaide AAP, Sugitate T, Suire C, Suleymanov M, Suljic M, Sultanov R, Šumbera M, Szabo A, Szanto de Toledo A, Szarka I, Szczepankiewicz A, Szymanski M, Tabassam U, Takahashi J, Tambave GJ, Tanaka N, Tangaro MA, Tarhini M, Tariq M, Tarzila MG, Tauro A, Tejeda Muñoz G, Telesca A, Terasaki K, Terrevoli C, Teyssier B, Thäder J, Thomas D, Tieulent R, Timmins AR, Toia A, Trogolo S, Trombetta G, Trubnikov V, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Tveter TS, Ullaland K, Uras A, Usai GL, Utrobicic A, Vajzer M, Vala M, Valencia Palomo L, Vallero S, Van Der Maarel J, Van Hoorne JW, van Leeuwen M, Vanat T, Vande Vyvre P, Varga D, Vargas A, Vargyas M, Varma R, Vasileiou M, Vasiliev A, Vauthier A, Vechernin V, Veen AM, Veldhoen M, Velure A, Venaruzzo M, Vercellin E, Vergara Limón S, Vernet R, Verweij M, Vickovic L, Viesti G, Viinikainen J, Vilakazi Z, Villalobos Baillie O, Villatoro Tello A, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Vislavicius V, Viyogi YP, Vodopyanov A, Völkl MA, Voloshin K, Voloshin SA, Volpe G, von Haller B, Vorobyev I, Vranic D, Vrláková J, Vulpescu B, Vyushin A, Wagner B, Wagner J, Wang H, Wang M, Watanabe D, Watanabe Y, Weber M, Weber SG, Weiser DF, Wessels JP, Westerhoff U, Whitehead AM, Wiechula J, Wikne J, Wilde M, Wilk G, Wilkinson J, Williams MCS, Windelband B, Winn M, Yaldo CG, Yang H, Yang P, Yano S, Yasar C, Yin Z, Yokoyama H, Yoo IK, Yoon JH, Yurchenko V, Yushmanov I, Zaborowska A, Zaccolo V, Zaman A, Zampolli C, Zanoli HJC, Zaporozhets S, Zardoshti N, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zgura IS, Zhalov M, Zhang H, Zhang X, Zhang Y, Zhang C, Zhang Z, Zhao C, Zhigareva N, Zhou D, Zhou Y, Zhou Z, Zhu H, Zhu J, Zichichi A, Zimmermann A, Zimmermann MB, Zinovjev G, Zyzak M. Measurement of an Excess in the Yield of J/ψ at Very Low p_{T} in Pb-Pb Collisions at sqrt[s]_{NN}=2.76 TeV. PHYSICAL REVIEW LETTERS 2016; 116:222301. [PMID: 27314714 DOI: 10.1103/physrevlett.116.222301] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Indexed: 06/06/2023]
Abstract
We report on the first measurement of an excess in the yield of J/ψ at very low transverse momentum (p_{T}<0.3 GeV/c) in peripheral hadronic Pb-Pb collisions at sqrt[s_{NN}]=2.76 TeV, performed by ALICE at the CERN LHC. Remarkably, the measured nuclear modification factor of J/ψ in the rapidity range 2.5<y<4 reaches about 7 (2) in the p_{T} range 0-0.3 GeV/c in the 70%-90% (50%-70%) centrality class. The J/ψ production cross section associated with the observed excess is obtained under the hypothesis that coherent photoproduction of J/ψ is the underlying physics mechanism. If confirmed, the observation of J/ψ coherent photoproduction in Pb-Pb collisions at impact parameters smaller than twice the nuclear radius opens new theoretical and experimental challenges and opportunities. In particular, coherent photoproduction accompanying hadronic collisions may provide insight into the dynamics of photoproduction and nuclear reactions, as well as become a novel probe of the quark-gluon plasma.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Aparin A, Arkhipkin D, Aschenauer EC, Attri A, Averichev GS, Bai X, Bairathi V, Banerjee A, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandenburg JD, Brandin AV, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Chakaberia I, Chaloupka P, Chang Z, Chattopadhyay S, Chen X, Chen JH, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, di Ruzza B, Didenko L, Dilks C, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Eppley G, Esha R, Evdokimov O, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Z, Filip P, Fisyak Y, Flores CE, Fulek L, Gagliardi CA, Garand D, Geurts F, Gibson A, Girard M, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Hamad A, Hamed A, Haque R, Harris JW, He L, Heppelmann S, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang X, Huang HZ, Huang B, Huang T, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Jentsch A, Jia J, Jiang K, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Khan ZH, Kikoła DP, Kisel I, Kisiel A, Kochenda L, Koetke DD, Kosarzewski LK, Kraishan AF, Kravtsov P, Krueger K, Kumar L, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li C, Li Y, Li W, Li X, Li X, Lin T, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma R, Ma L, Ma GL, Ma YG, Magdy N, Majka R, Manion A, Margetis S, Markert C, McDonald D, Meehan K, Mei JC, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nigmatkulov G, Niida T, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Okorokov VA, Olvitt D, Page BS, Pak R, Pan YX, Pandit Y, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pile P, Pluta J, Poniatowska K, Porter J, Posik M, Poskanzer AM, Pruthi NK, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma MK, Sharma B, Shen WQ, Shi Z, Shi SS, Shou QY, Sichtermann EP, Sikora R, Simko M, Singha S, Skoby MJ, Smirnov D, Smirnov N, Solyst W, Song L, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stepanov M, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Summa B, Sun Y, Sun Z, Sun XM, Surrow B, Svirida DN, Tang AH, Tang Z, Tarnowsky T, Tawfik A, Thäder J, Thomas JH, Timmins AR, Tlusty D, Todoroki T, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Ullrich T, Underwood DG, Upsal I, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Varma R, Vasiliev AN, Vertesi R, Videbæk F, Vokal S, Voloshin SA, Vossen A, Wang JS, Wang Y, Wang F, Wang Y, Wang H, Wang G, Webb JC, Webb G, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie X, Xie W, Xin K, Xu N, Xu YF, Xu Z, Xu QH, Xu J, Xu H, Yang Q, Yang Y, Yang S, Yang Y, Yang C, Yang Y, Ye Z, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang S, Zhang Z, Zhang S, Zhang JB, Zhang Y, Zhang J, Zhang J, Zhang XP, Zhao J, Zhong C, Zhou L, Zhu X, Zoulkarneeva Y, Zyzak M. Measurement of the Transverse Single-Spin Asymmetry in p^{↑}+p→W^{±}/Z^{0} at RHIC. PHYSICAL REVIEW LETTERS 2016; 116:132301. [PMID: 27081970 DOI: 10.1103/physrevlett.116.132301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Indexed: 06/05/2023]
Abstract
We present the measurement of the transverse single-spin asymmetry of weak boson production in transversely polarized proton-proton collisions at sqrt[s]=500 GeV by the STAR experiment at RHIC. The measured observable is sensitive to the Sivers function, one of the transverse-momentum-dependent parton distribution functions, which is predicted to have the opposite sign in proton-proton collisions from that observed in deep inelastic lepton-proton scattering. These data provide the first experimental investigation of the nonuniversality of the Sivers function, fundamental to our understanding of QCD.
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Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agrawal N, Ahammed Z, Ahmad S, Ahn SU, Aiola S, Akindinov A, Alam SN, Albuquerque DSD, Aleksandrov D, Alessandro B, Alexandre D, Alfaro Molina R, Alici A, Alkin A, Almaraz JRM, Alme J, Alt T, Altinpinar S, Altsybeev I, Alves Garcia Prado C, Andrei C, Andronic A, Anguelov V, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arcelli S, Arnaldi R, Arnold OW, Arsene IC, Arslandok M, Audurier B, Augustinus A, Averbeck R, Azmi MD, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Balasubramanian S, Baldisseri A, Baral RC, Barbano AM, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartalini P, Barth K, Bartke J, Bartsch E, Basile M, Bastid N, Basu S, Bathen B, Batigne G, Batista Camejo A, Batyunya B, Batzing PC, Bearden IG, Beck H, Bedda C, Behera NK, Belikov I, Bellini F, Bello Martinez H, Bellwied R, Belmont R, Belmont-Moreno E, Belyaev V, Benacek P, Bencedi G, Beole S, Berceanu I, Bercuci A, Berdnikov Y, Berenyi D, Bertens RA, Berzano D, Betev L, Bhasin A, Bhat IR, Bhati AK, Bhattacharjee B, Bhom J, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biro G, Biswas R, Biswas S, Bjelogrlic S, Blair JT, Blau D, Blume C, Bock F, Bogdanov A, Bøggild H, Boldizsár L, Bombara M, Book J, Borel H, Borissov A, Borri M, Bossú F, Botta E, Bourjau C, Braun-Munzinger P, Bregant M, Breitner T, Broker TA, Browning TA, Broz M, Brucken EJ, Bruna E, Bruno GE, Budnikov D, Buesching H, Bufalino S, Buncic P, Busch O, Buthelezi Z, Butt JB, Buxton JT, Cabala J, Caffarri D, Cai X, Caines H, Calero Diaz L, Caliva A, Calvo Villar E, Camerini P, Carena F, Carena W, Carnesecchi F, Castillo Castellanos J, Castro AJ, Casula EAR, Ceballos Sanchez C, Cepila J, Cerello P, Cerkala J, Chang B, Chapeland S, Chartier M, Charvet JL, Chattopadhyay S, Chattopadhyay S, Chauvin A, Chelnokov V, Cherney M, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato DD, Cho S, Chochula P, Choi K, Chojnacki M, Choudhury S, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chung SU, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Conesa Balbastre G, Conesa Del Valle Z, Connors ME, Contreras JG, Cormier TM, Corrales Morales Y, Cortés Maldonado I, Cortese P, Cosentino MR, Costa F, Crochet P, Cruz Albino R, Cuautle E, Cunqueiro L, Dahms T, Dainese A, Danisch MC, Danu A, Das D, Das I, Das S, Dash A, Dash S, De S, De Caro A, de Cataldo G, de Conti C, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, Deisting A, Deloff A, Dénes E, Deplano C, Dhankher P, Di Bari D, Di Mauro A, Di Nezza P, Diaz Corchero MA, Dietel T, Dillenseger P, Divià R, Djuvsland Ø, Dobrin A, Domenicis Gimenez D, Dönigus B, Dordic O, Drozhzhova T, Dubey AK, Dubla A, Ducroux L, Dupieux P, Ehlers RJ, Elia D, Endress E, Engel H, Epple E, Erazmus B, Erdemir I, Erhardt F, Espagnon B, Estienne M, Esumi S, Eum J, Evans D, Evdokimov S, Eyyubova G, Fabbietti L, Fabris D, Faivre J, Fantoni A, Fasel M, Feldkamp L, Feliciello A, Feofilov G, Ferencei J, Fernández Téllez A, Ferreiro EG, Ferretti A, Festanti A, Feuillard VJG, Figiel J, Figueredo MAS, Filchagin S, Finogeev D, Fionda FM, Fiore EM, Fleck MG, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Frankenfeld U, Fronze GG, Fuchs U, Furget C, Furs A, Fusco Girard M, Gaardhøje JJ, Gagliardi M, Gago AM, Gallio M, Gangadharan DR, Ganoti P, Gao C, Garabatos C, Garcia-Solis E, Gargiulo C, Gasik P, Gauger EF, Germain M, Gheata A, Gheata M, Ghosh P, Ghosh SK, Gianotti P, Giubellino P, Giubilato P, Gladysz-Dziadus E, Glässel P, Goméz Coral DM, Gomez Ramirez A, Gonzalez AS, Gonzalez V, González-Zamora P, Gorbunov S, Görlich L, Gotovac S, Grabski V, Grachov OA, Graczykowski LK, Graham KL, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Gronefeld JM, Grosse-Oetringhaus JF, Grosso R, Guber F, Guernane R, Guerzoni B, Gulbrandsen K, Gunji T, Gupta A, Gupta R, Haake R, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Hamon JC, Harris JW, Harton A, Hatzifotiadou D, Hayashi S, Heckel ST, Hellbär E, Helstrup H, Herghelegiu A, Herrera Corral G, Hess BA, Hetland KF, Hillemanns H, Hippolyte B, Horak D, Hosokawa R, Hristov P, Humanic TJ, Hussain N, Hussain T, Hutter D, Hwang DS, Ilkaev R, Inaba M, Incani E, Ippolitov M, Irfan M, Ivanov M, Ivanov V, Izucheev V, Jacazio N, Jacobs PM, Jadhav MB, Jadlovska S, Jadlovsky J, Jahnke C, Jakubowska MJ, Jang HJ, Janik MA, Jayarathna PHSY, Jena C, Jena S, Jimenez Bustamante RT, Jones PG, Jusko A, Kalinak P, Kalweit A, Kamin J, Kang JH, Kaplin V, Kar S, Karasu Uysal A, Karavichev O, Karavicheva T, Karayan L, Karpechev E, Kebschull U, Keidel R, Keijdener DLD, Keil M, Mohisin Khan M, Khan P, Khan SA, Khanzadeev A, Kharlov Y, Kileng B, Kim DW, Kim DJ, Kim D, Kim H, Kim JS, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kiss G, Klay JL, Klein C, Klein J, Klein-Bösing C, Klewin S, Kluge A, Knichel ML, Knospe AG, Kobdaj C, Kofarago M, Kollegger T, Kolojvari A, Kondratiev V, Kondratyeva N, Kondratyuk E, Konevskikh A, Kopcik M, Kostarakis P, Kour M, Kouzinopoulos C, Kovalenko O, Kovalenko V, Kowalski M, Koyithatta Meethaleveedu G, Králik I, Kravčáková A, Krivda M, Krizek F, Kryshen E, Krzewicki M, Kubera AM, Kučera V, Kuhn C, Kuijer PG, Kumar A, Kumar J, Kumar L, Kumar S, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kweon MJ, Kwon Y, La Pointe SL, La Rocca P, Ladron de Guevara P, Lagana Fernandes C, Lakomov I, Langoy R, Lara C, Lardeux A, Lattuca A, Laudi E, Lea R, Leardini L, Lee GR, Lee S, Lehas F, Lemmon RC, Lenti V, Leogrande E, León Monzón I, León Vargas H, Leoncino M, Lévai P, Li S, Li X, Lien J, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Ljunggren HM, Lodato DF, Loenne PI, Loginov V, Loizides C, Lopez X, López Torres E, Lowe A, Luettig P, Lunardon M, Luparello G, Lutz TH, Maevskaya A, Mager M, Mahajan S, Mahmood SM, Maire A, Majka RD, Malaev M, Maldonado Cervantes I, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manko V, Manso F, Manzari V, Marchisone M, Mareš J, Margagliotti GV, Margotti A, Margutti J, Marín A, Markert C, Marquard M, Martin NA, Martin Blanco J, Martinengo P, Martínez MI, Martínez García G, Martinez Pedreira M, Mas A, Masciocchi S, Masera M, Masoni A, Mastroserio A, Matyja A, Mayer C, Mazer J, Mazzoni MA, Mcdonald D, Meddi F, Melikyan Y, Menchaca-Rocha A, Meninno E, Mercado Pérez J, Meres M, Miake Y, Mieskolainen MM, Mikhaylov K, Milano L, Milosevic J, Mischke A, Mishra AN, Miśkowiec D, Mitra J, Mitu CM, Mohammadi N, Mohanty B, Molnar L, Montaño Zetina L, Montes E, Moreira De Godoy DA, Moreno LAP, Moretto S, Morreale A, Morsch A, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Mulligan JD, Munhoz MG, Munzer RH, Murakami H, Murray S, Musa L, Musinsky J, Naik B, Nair R, Nandi BK, Nania R, Nappi E, Naru MU, Natal da Luz H, Nattrass C, Navarro SR, Nayak K, Nayak R, Nayak TK, Nazarenko S, Nedosekin A, Nellen L, Ng F, Nicassio M, Niculescu M, Niedziela J, Nielsen BS, Nikolaev S, Nikulin S, Nikulin V, Noferini F, Nomokonov P, Nooren G, Noris JCC, Norman J, Nyanin A, Nystrand J, Oeschler H, Oh S, Oh SK, Ohlson A, Okatan A, Okubo T, Olah L, Oleniacz J, Oliveira Da Silva AC, Oliver MH, Onderwaater J, Oppedisano C, Orava R, Oravec M, Ortiz Velasquez A, Oskarsson A, Otwinowski J, Oyama K, Ozdemir M, Pachmayer Y, Pagano D, Pagano P, Paić G, Pal SK, Pan J, Pandey AK, Papikyan V, Pappalardo GS, Pareek P, Park WJ, Parmar S, Passfeld A, Paticchio V, Patra RN, Paul B, Pei H, Peitzmann T, Pereira Da Costa H, Peresunko D, Pérez Lara CE, Perez Lezama E, Peskov V, Pestov Y, Petráček V, Petrov V, Petrovici M, Petta C, Piano S, Pikna M, Pillot P, Pimentel LODL, Pinazza O, Pinsky L, Piyarathna DB, Płoskoń M, Planinic M, Pluta J, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Polichtchouk B, Poljak N, Poonsawat W, Pop A, Porteboeuf-Houssais S, Porter J, Pospisil J, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puccio M, Puddu G, Pujahari P, Punin V, Putschke J, Qvigstad H, Rachevski A, Raha S, Rajput S, Rak J, Rakotozafindrabe A, Ramello L, Rami F, Raniwala R, Raniwala S, Räsänen SS, Rascanu BT, Rathee D, Read KF, Redlich K, Reed RJ, Rehman A, Reichelt P, Reidt F, Ren X, Renfordt R, Reolon AR, Reshetin A, Reygers K, Riabov V, Ricci RA, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Ristea C, Rocco E, Rodríguez Cahuantzi M, Rodriguez Manso A, Røed K, Rogochaya E, Rohr D, Röhrich D, Ronchetti F, Ronflette L, Rosnet P, Rossi A, Roukoutakis F, Roy A, Roy C, Roy P, Rubio Montero AJ, Rui R, Russo R, Ryabinkin E, Ryabov Y, Rybicki A, Saarinen S, Sadhu S, Sadovsky S, Šafařík K, Sahlmuller B, Sahoo P, Sahoo R, Sahoo S, Sahu PK, Saini J, Sakai S, Saleh MA, Salzwedel J, Sambyal S, Samsonov V, Šándor L, Sandoval A, Sano M, Sarkar D, Sarkar N, Sarma P, Scapparone E, Scarlassara F, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schuchmann S, Schukraft J, Schulc M, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott R, Šefčík M, Seger JE, Sekiguchi Y, Sekihata D, Selyuzhenkov I, Senosi K, Senyukov S, Serradilla E, Sevcenco A, Shabanov A, Shabetai A, Shadura O, Shahoyan R, Shahzad MI, Shangaraev A, Sharma A, Sharma M, Sharma M, Sharma N, Sheikh AI, Shigaki K, Shou Q, Shtejer K, Sibiriak Y, Siddhanta S, Sielewicz KM, Siemiarczuk T, Silvermyr D, Silvestre C, Simatovic G, Simonetti G, Singaraju R, Singh R, Singha S, Singhal V, Sinha BC, Sinha T, Sitar B, Sitta M, Skaali TB, Slupecki M, Smirnov N, Snellings RJM, Snellman TW, Song J, Song M, Song Z, Soramel F, Sorensen S, de Souza RD, Sozzi F, Spacek M, Spiriti E, Sputowska I, Spyropoulou-Stassinaki M, Stachel J, Stan I, Stankus P, Stenlund E, Steyn G, Stiller JH, Stocco D, Strmen P, Suaide AAP, Sugitate T, Suire C, Suleymanov M, Suljic M, Sultanov R, Šumbera M, Sumowidagdo S, Szabo A, Szanto de Toledo A, Szarka I, Szczepankiewicz A, Szymanski M, Tabassam U, Takahashi J, Tambave GJ, Tanaka N, Tarhini M, Tariq M, Tarzila MG, Tauro A, Tejeda Muñoz G, Telesca A, Terasaki K, Terrevoli C, Teyssier B, Thäder J, Thakur D, Thomas D, Tieulent R, Timmins AR, Toia A, Trogolo S, Trombetta G, Trubnikov V, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Tveter TS, Ullaland K, Uras A, Usai GL, Utrobicic A, Vala M, Valencia Palomo L, Vallero S, Van Der Maarel J, Van Hoorne JW, van Leeuwen M, Vanat T, Vande Vyvre P, Varga D, Vargas A, Vargyas M, Varma R, Vasileiou M, Vasiliev A, Vauthier A, Vechernin V, Veen AM, Veldhoen M, Velure A, Vercellin E, Vergara Limón S, Vernet R, Verweij M, Vickovic L, Viesti G, Viinikainen J, Vilakazi Z, Villalobos Baillie O, Villatoro Tello A, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Vislavicius V, Viyogi YP, Vodopyanov A, Völkl MA, Voloshin K, Voloshin SA, Volpe G, von Haller B, Vorobyev I, Vranic D, Vrláková J, Vulpescu B, Wagner B, Wagner J, Wang H, Wang M, Watanabe D, Watanabe Y, Weber M, Weber SG, Weiser DF, Wessels JP, Westerhoff U, Whitehead AM, Wiechula J, Wikne J, Wilk G, Wilkinson J, Williams MCS, Windelband B, Winn M, Yang H, Yang P, Yano S, Yasin Z, Yin Z, Yokoyama H, Yoo IK, Yoon JH, Yurchenko V, Yushmanov I, Zaborowska A, Zaccolo V, Zaman A, Zampolli C, Zanoli HJC, Zaporozhets S, Zardoshti N, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zgura IS, Zhalov M, Zhang H, Zhang X, Zhang Y, Zhang C, Zhang Z, Zhao C, Zhigareva N, Zhou D, Zhou Y, Zhou Z, Zhu H, Zhu J, Zichichi A, Zimmermann A, Zimmermann MB, Zinovjev G, Zyzak M. Anisotropic Flow of Charged Particles in Pb-Pb Collisions at √[s{NN}]=5.02 TeV. PHYSICAL REVIEW LETTERS 2016; 116:132302. [PMID: 27081971 DOI: 10.1103/physrevlett.116.132302] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Indexed: 06/05/2023]
Abstract
We report the first results of elliptic (v_{2}), triangular (v_{3}), and quadrangular (v_{4}) flow of charged particles in Pb-Pb collisions at a center-of-mass energy per nucleon pair of sqrt[s_{NN}]=5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. The measurements are performed in the central pseudorapidity region |η|<0.8 and for the transverse momentum range 0.2<p_{T}<5 GeV/c. The anisotropic flow is measured using two-particle correlations with a pseudorapidity gap greater than one unit and with the multiparticle cumulant method. Compared to results from Pb-Pb collisions at sqrt[s_{NN}]=2.76 TeV, the anisotropic flow coefficients v_{2}, v_{3}, and v_{4} are found to increase by (3.0±0.6)%, (4.3±1.4)%, and (10.2±3.8)%, respectively, in the centrality range 0%-50%. This increase can be attributed mostly to an increase of the average transverse momentum between the two energies. The measurements are found to be compatible with hydrodynamic model calculations. This comparison provides a unique opportunity to test the validity of the hydrodynamic picture and the power to further discriminate between various possibilities for the temperature dependence of shear viscosity to entropy density ratio of the produced matter in heavy-ion collisions at the highest energies.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Aparin A, Arkhipkin D, Aschenauer EC, Attri A, Averichev GS, Bai X, Bairathi V, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandenburg JD, Brandin AV, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Chakaberia I, Chaloupka P, Chang Z, Chatterjee A, Chattopadhyay S, Chen JH, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, di Ruzza B, Didenko L, Dilks C, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Eppley G, Esha R, Evdokimov O, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Z, Filip P, Fisyak Y, Flores CE, Fulek L, Gagliardi CA, Garand D, Geurts F, Gibson A, Girard M, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta S, Gupta A, Guryn W, Hamad AI, Hamed A, Haque R, Harris JW, He L, Heppelmann S, Heppelmann S, Hirsch A, Hoffmann GW, Horvat S, Huang T, Huang X, Huang B, Huang HZ, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Jentsch A, Jia J, Jiang K, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Khan ZH, Kikoła DP, Kisel I, Kisiel A, Kochenda L, Koetke DD, Kosarzewski LK, Kraishan AF, Kravtsov P, Krueger K, Kumar L, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li X, Li C, Li X, Li Y, Li W, Lin T, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma R, Ma GL, Ma YG, Ma L, Magdy N, Majka R, Manion A, Margetis S, Markert C, Matis HS, McDonald D, McKinzie S, Meehan K, Mei JC, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nigmatkulov G, Niida T, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Okorokov VA, Olvitt D, Page BS, Pak R, Pan YX, Pandit Y, Panebratsev Y, Pawlik B, Pei H, Perkins C, Pile P, Pluta J, Poniatowska K, Porter J, Posik M, Poskanzer AM, Pruthi NK, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala S, Raniwala R, Ray RL, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma A, Sharma B, Sharma MK, Shen WQ, Shi Z, Shi SS, Shou QY, Sichtermann EP, Sikora R, Simko M, Singha S, Skoby MJ, Smirnov N, Smirnov D, Solyst W, Song L, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stepanov M, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Summa B, Sun Z, Sun XM, Sun Y, Surrow B, Svirida DN, Tang Z, Tang AH, Tarnowsky T, Tawfik A, Thäder J, Thomas JH, Timmins AR, Tlusty D, Todoroki T, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Tsai OD, Ullrich T, Underwood DG, Upsal I, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Varma R, Vasiliev AN, Vertesi R, Videbæk F, Vokal S, Voloshin SA, Vossen A, Wang F, Wang G, Wang JS, Wang H, Wang Y, Wang Y, Webb G, Webb JC, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu Y, Xiao ZG, Xie W, Xie G, Xin K, Xu YF, Xu QH, Xu N, Xu H, Xu Z, Xu J, Yang S, Yang Y, Yang Y, Yang C, Yang Y, Yang Q, Ye Z, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang XP, Zhang Y, Zhang J, Zhang J, Zhang S, Zhang S, Zhang Z, Zhang JB, Zhao J, Zhong C, Zhou L, Zhu X, Zoulkarneeva Y, Zyzak M. Beam Energy Dependence of the Third Harmonic of Azimuthal Correlations in Au+Au Collisions at RHIC. PHYSICAL REVIEW LETTERS 2016; 116:112302. [PMID: 27035295 DOI: 10.1103/physrevlett.116.112302] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Indexed: 06/05/2023]
Abstract
We present results from a harmonic decomposition of two-particle azimuthal correlations measured with the STAR detector in Au+Au collisions for energies ranging from sqrt[s_{NN}]=7.7 to 200 GeV. The third harmonic v_{3}^{2}{2}=⟨cos3(ϕ_{1}-ϕ_{2})⟩, where ϕ_{1}-ϕ_{2} is the angular difference in azimuth, is studied as a function of the pseudorapidity difference between particle pairs Δη=η_{1}-η_{2}. Nonzero v_{3}^{2}{2} is directly related to the previously observed large-Δη narrow-Δϕ ridge correlations and has been shown in models to be sensitive to the existence of a low viscosity quark gluon plasma phase. For sufficiently central collisions, v_{3}^{2}{2} persist down to an energy of 7.7 GeV, suggesting that quark gluon plasma may be created even in these low energy collisions. In peripheral collisions at these low energies, however, v_{3}^{2}{2} is consistent with zero. When scaled by the pseudorapidity density of charged-particle multiplicity per participating nucleon pair, v_{3}^{2}{2} for central collisions shows a minimum near sqrt[s_{NN}]=20 GeV.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Bairathi V, Banerjee A, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandin AV, Bunzarov I, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Cervantes MC, Chakaberia I, Chaloupka P, Chang Z, Chattopadhyay S, Chen JH, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, di Ruzza B, Didenko L, Dilks C, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Eppley G, Esha R, Evdokimov O, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Z, Filip P, Fisyak Y, Flores CE, Fulek L, Gagliardi CA, Garand D, Geurts F, Gibson A, Girard M, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta S, Gupta A, Guryn W, Hamad A, Hamed A, Haque R, Harris JW, He L, Heppelmann S, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang X, Huang B, Huang HZ, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Jiang K, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Khan ZH, Kikoła DP, Kisel I, Kisiel A, Kochenda L, Koetke DD, Kollegger T, Kosarzewski LK, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li ZM, Li W, Li X, Li X, Li C, Li Y, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma YG, Ma GL, Ma L, Ma R, Magdy N, Majka R, Manion A, Margetis S, Markert C, Masui H, Matis HS, McDonald D, Meehan K, Minaev NG, Mioduszewski S, Mishra D, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Okorokov V, Olvitt D, Page BS, Pak R, Pan YX, Pandit Y, Panebratsev Y, Pawlik B, Pei H, Perkins C, Peterson A, Pile P, Planinic M, Pluta J, Poljak N, Poniatowska K, Porter J, Posik M, Poskanzer AM, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Sharma MK, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Sikora R, Simko M, Singha S, Skoby MJ, Smirnov D, Smirnov N, Song L, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stepanov M, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Summa B, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida N, Szelezniak MA, Tang AH, Tang Z, Tarnowsky T, Tawfik A, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Trzeciak BA, Tsai OD, Ullrich T, Underwood DG, Upsal I, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Varma R, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Vossen A, Wang Y, Wang G, Wang JS, Wang H, Wang Y, Wang F, Webb JC, Webb G, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Wu Y, Xiao ZG, Xie W, Xin K, Xu N, Xu Z, Xu QH, Xu YF, Xu H, Yang Q, Yang Y, Yang Y, Yang S, Yang C, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang Z, Zhang Y, Zhang JB, Zhang J, Zhang S, Zhang J, Zhang XP, Zhao J, Zhong C, Zhou L, Zhu X, Zoulkarneeva Y, Zyzak M. Centrality and Transverse Momentum Dependence of Elliptic Flow of Multistrange Hadrons and ϕ Meson in Au+Au Collisions at √[sNN]=200 GeV. PHYSICAL REVIEW LETTERS 2016; 116:062301. [PMID: 26918982 DOI: 10.1103/physrevlett.116.062301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Indexed: 06/05/2023]
Abstract
We present high precision measurements of elliptic flow near midrapidity (|y|<1.0) for multistrange hadrons and ϕ meson as a function of centrality and transverse momentum in Au+Au collisions at center of mass energy √[sNN]=200 GeV. We observe that the transverse momentum dependence of ϕ and Ω v2 is similar to that of π and p, respectively, which may indicate that the heavier strange quark flows as strongly as the lighter up and down quarks. This observation constitutes a clear piece of evidence for the development of partonic collectivity in heavy-ion collisions at the top RHIC energy. Number of constituent quark scaling is found to hold within statistical uncertainty for both 0%-30% and 30%-80% collision centrality. There is an indication of the breakdown of previously observed mass ordering between ϕ and proton v2 at low transverse momentum in the 0%-30% centrality range, possibly indicating late hadronic interactions affecting the proton v2.
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Terry SYA, Walgreen B, Helsen MM, Franssen GM, Nayak TK, Freimoser-Grundschober A, Klein C, Oyen WJ, Boerman OC, Laverman P, Koenders MI. A5.03 Monitoring therapy response of experimental arthritis with radiolabeled tracers targeting fibroblasts, macrophages or integrin α vβ 3. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandin AV, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Cervantes MC, Chakaberia I, Chaloupka P, Chang Z, Chattopadhyay S, Chen JH, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, di Ruzza B, Didenko L, Dilks C, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Eppley G, Esha R, Evdokimov O, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Z, Filip P, Fisyak Y, Flores CE, Fulek L, Gagliardi CA, Garand D, Geurts F, Gibson A, Girard M, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta S, Gupta A, Guryn W, Hamad A, Hamed A, Haque R, Harris JW, He L, Heppelmann S, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang X, Huang HZ, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Jiang K, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Kochenda L, Koetke DD, Kollegger T, Kosarzewski LK, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li X, Li C, Li W, Li ZM, Li Y, Li X, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma YG, Ma GL, Ma L, Ma R, Magdy N, Majka R, Manion A, Margetis S, Markert C, Masui H, Matis HS, McDonald D, Meehan K, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov D, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Okorokov V, Olvitt D, Page BS, Pak R, Pan YX, Pandit Y, Panebratsev Y, Pawlik B, Pei H, Perkins C, Peterson A, Pile P, Planinic M, Pluta J, Poljak N, Poniatowska K, Porter J, Posik M, Poskanzer AM, Pruthi NK, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma MK, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Sikora R, Simko M, Skoby MJ, Smirnov D, Smirnov N, Song L, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stepanov M, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Summa B, Sun X, Sun Z, Sun XM, Sun Y, Surrow B, Svirida N, Szelezniak MA, Tang AH, Tang Z, Tarnowsky T, Tawfik AN, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Trzeciak BA, Tsai OD, Ullrich T, Underwood DG, Upsal I, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Varma R, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Vossen A, Wang G, Wang Y, Wang F, Wang Y, Wang H, Wang JS, Webb JC, Webb G, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao ZG, Xie W, Xin K, Xu QH, Xu Z, Xu H, Xu N, Xu YF, Yang Q, Yang Y, Yang S, Yang Y, Yang C, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang XP, Zhang J, Zhang Y, Zhang J, Zhang JB, Zhang S, Zhang Z, Zhao J, Zhong C, Zhou L, Zhu X, Zoulkarneeva Y, Zyzak M. Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in p^{↑}+p at sqrt[s]=200 GeV. PHYSICAL REVIEW LETTERS 2015; 115:242501. [PMID: 26705627 DOI: 10.1103/physrevlett.115.242501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Indexed: 06/05/2023]
Abstract
We report the observation of transverse polarization-dependent azimuthal correlations in charged pion pair production with the STAR experiment in p^{↑}+p collisions at RHIC. These correlations directly probe quark transversity distributions. We measure signals in excess of 5 standard deviations at high transverse momenta, at high pseudorapidities η>0.5, and for pair masses around the mass of the ρ meson. This is the first direct transversity measurement in p+p collisions.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Bouchet J, Brandin AV, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Cervantes MC, Chakaberia I, Chaloupka P, Chang Z, Chattopadhyay S, Chen JH, Chen X, Cheng J, Cherney M, Christie W, Contin G, Crawford HJ, Das S, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, di Ruzza B, Didenko L, Dilks C, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Eppley G, Esha R, Evdokimov O, Eyser O, Fatemi R, Fazio S, Federic P, Fedorisin J, Feng Z, Filip P, Fisyak Y, Flores CE, Fulek L, Gagliardi CA, Garand D, Geurts F, Gibson A, Girard M, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta S, Gupta A, Guryn W, Hamad A, Hamed A, Haque R, Harris JW, He L, Heppelmann S, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang HZ, Huang B, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Jiang K, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Kosarzewski LK, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li W, Li Y, Li C, Li ZM, Li X, Li X, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma L, Ma R, Ma YG, Ma GL, Magdy N, Majka R, Manion A, Margetis S, Markert C, Masui H, Matis HS, McDonald D, Meehan K, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Okorokov V, Olvitt DL, Page BS, Pak R, Pan YX, Pandit Y, Panebratsev Y, Pawlik B, Pei H, Perkins C, Peterson A, Pile P, Planinic M, Pluta J, Poljak N, Poniatowska K, Porter J, Posik M, Poskanzer AM, Pruthi NK, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala S, Raniwala R, Ray RL, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Sharma MK, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Sikora R, Simko M, Skoby MJ, Smirnov D, Smirnov N, Song L, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stepanov M, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Summa BJ, Sun X, Sun XM, Sun Z, Sun Y, Surrow B, Svirida DN, Szelezniak MA, Tang Z, Tang AH, Tarnowsky T, Tawfik AN, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Tripathy SK, Trzeciak BA, Tsai OD, Ullrich T, Underwood DG, Upsal I, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Varma R, Vasiliev AN, Vertesi R, Videbaek F, Viyogi YP, Vokal S, Voloshin SA, Vossen A, Wang F, Wang Y, Wang H, Wang JS, Wang Y, Wang G, Webb G, Webb JC, Wen L, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu YF, Xu N, Xu Z, Xu QH, Xu H, Yang Y, Yang Y, Yang C, Yang S, Yang Q, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang XP, Zhang JB, Zhang J, Zhang Z, Zhang S, Zhang Y, Zhang JL, Zhao F, Zhao J, Zhong C, Zhou L, Zhu X, Zoulkarneeva Y, Zyzak M. Azimuthal Anisotropy in U+U and Au+Au Collisions at RHIC. PHYSICAL REVIEW LETTERS 2015; 115:222301. [PMID: 26650297 DOI: 10.1103/physrevlett.115.222301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Indexed: 06/05/2023]
Abstract
Collisions between prolate uranium nuclei are used to study how particle production and azimuthal anisotropies depend on initial geometry in heavy-ion collisions. We report the two- and four-particle cumulants, v_{2}{2} and v_{2}{4}, for charged hadrons from U+U collisions at sqrt[s_{NN}]=193 GeV and Au+Au collisions at sqrt[s_{NN}]=200 GeV. Nearly fully overlapping collisions are selected based on the energy deposited by spectators in zero degree calorimeters (ZDCs). Within this sample, the observed dependence of v_{2}{2} on multiplicity demonstrates that ZDC information combined with multiplicity can preferentially select different overlap configurations in U+U collisions. We also show that v_{2} vs multiplicity can be better described by models, such as gluon saturation or quark participant models, that eliminate the dependence of the multiplicity on the number of binary nucleon-nucleon collisions.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Contin G, Cramer JG, Crawford HJ, Cudd AB, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Eyser O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Kosarzewski LK, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Olvitt DL, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Poniatowska K, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szelezniak MA, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu J, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Precision Measurement of the Longitudinal Double-Spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at sqrt[s]=200 GeV. PHYSICAL REVIEW LETTERS 2015; 115:092002. [PMID: 26371644 DOI: 10.1103/physrevlett.115.092002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Indexed: 06/05/2023]
Abstract
We report a new measurement of the midrapidity inclusive jet longitudinal double-spin asymmetry, A_{LL}, in polarized pp collisions at center-of-mass energy sqrt[s]=200 GeV. The STAR data place stringent constraints on polarized parton distribution functions extracted at next-to-leading order from global analyses of inclusive deep-inelastic scattering (DIS), semi-inclusive DIS, and RHIC pp data. The measured asymmetries provide evidence at the 3σ level for positive gluon polarization in the Bjorken-x region x>0.05.
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Adam J, Adamová D, Aggarwal MM, Rinella GA, Agnello M, Agrawal N, Ahammed Z, Ahmed I, Ahn SU, Aimo I, Aiola S, Ajaz M, Akindinov A, Alam SN, Aleksandrov D, Alessandro B, Alexandre D, Molina RA, Alici A, Alkin A, Alme J, Alt T, Altinpinar S, Altsybeev I, Prado CAG, Andrei C, Andronic A, Anguelov V, Anielski J, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arcelli S, Armesto N, Arnaldi R, Aronsson T, Arsene IC, Arslandok M, Augustinus A, Averbeck R, Azmi MD, Bach M, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Baldisseri A, Ball M, Pedrosa FBDS, Baral RC, Barbano AM, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartalini P, Bartke J, Bartsch E, Basile M, Bastid N, Basu S, Bathen B, Batigne G, Camejo AB, Batyunya B, Batzing PC, Bearden IG, Beck H, Bedda C, Behera NK, Belikov I, Bellini F, Martinez HB, Bellwied R, Belmont R, Belmont-Moreno E, Belyaev V, Bencedi G, Beole S, Berceanu I, Bercuci A, Berdnikov Y, Berenyi D, Bertens RA, Berzano D, Betev L, Bhasin A, Bhat IR, Bhati AK, Bhattacharjee B, Bhom J, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Biswas S, Bjelogrlic S, Blanco F, Blau D, Blume C, Bock F, Bogdanov A, Bøggild H, Boldizsár L, Bombara M, Book J, Borel H, Borissov A, Borri M, Bossú F, Botje M, Botta E, Böttger S, Braun-Munzinger P, Bregant M, Breitner T, Broker TA, Browning TA, Broz M, Brucken EJ, Bruna E, Bruno GE, Budnikov D, Buesching H, Bufalino S, Buncic P, Busch O, Buthelezi Z, Buxton JT, Caffarri D, Cai X, Caines H, Diaz LC, Caliva A, Villar EC, Camerini P, Carena F, Carena W, Castellanos JC, Castro AJ, Casula EAR, Cavicchioli C, Sanchez CC, Cepila J, Cerello P, Chang B, Chapeland S, Chartier M, Charvet JL, Chattopadhyay S, Chattopadhyay S, Chelnokov V, Cherney M, Cheshkov C, Cheynis B, Barroso VC, Chinellato DD, Chochula P, Choi K, Chojnacki M, Choudhury S, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chung SU, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Balbastre GC, Valle ZCD, Connors ME, Contreras JG, Cormier TM, Morales YC, Maldonado IC, Cortese P, Cosentino MR, Costa F, Crochet P, Albino RC, Cuautle E, Cunqueiro L, Dahms T, Dainese A, Danu A, Das D, Das I, Das S, Dash A, Dash S, De S, Caro AD, Cataldo GD, Cuveland JD, Falco AD, Gruttola DD, Marco ND, Pasquale SD, Deisting A, Deloff A, Dénes E, D'Erasmo G, Bari DD, Mauro AD, Nezza PD, Corchero MAD, Dietel T, Dillenseger P, Divià R, Djuvsland Ø, Dobrin A, Dobrowolski T, Gimenez DD, Dönigus B, Dordic O, Dubey AK, Dubla A, Ducroux L, Dupieux P, Ehlers RJ, Elia D, Engel H, Erazmus B, Erhardt F, Eschweiler D, Espagnon B, Estienne M, Esumi S, Eum J, Evans D, Evdokimov S, Eyyubova G, Fabbietti L, Fabris D, Faivre J, Fantoni A, Fasel M, Feldkamp L, Felea D, Feliciello A, Feofilov G, Ferencei J, Téllez AF, Ferreiro EG, Ferretti A, Festanti A, Figiel J, Figueredo MAS, Filchagin S, Finogeev D, Fionda FM, Fiore EM, Fleck MG, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Frankenfeld U, Fuchs U, Furget C, Furs A, Girard MF, Gaardhøje JJ, Gagliardi M, Gago AM, Gallio M, Gangadharan DR, Ganoti P, Gao C, Garabatos C, Garcia-Solis E, Gargiulo C, Gasik P, Germain M, Gheata A, Gheata M, Ghosh P, Ghosh SK, Gianotti P, Giubellino P, Giubilato P, Dziadus EG, Glässel P, Ramirez AG, Zamora PG, Gorbunov S, Görlich L, Gotovac S, Grabski V, Graczykowski LK, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Grosse-Oetringhaus JF, Grossiord JY, Grosso R, Guber F, Guernane R, Guerzoni B, Gulbrandsen K, Gulkanyan H, Gunji T, Gupta A, Gupta R, Haake R, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Hanratty LD, Hansen A, Harris JW, Hartmann H, Harton A, Hatzifotiadou D, Hayashi S, Heckel ST, Heide M, Helstrup H, Herghelegiu A, Corral GH, Hess BA, Hetland KF, Hilden TE, Hillemanns H, Hippolyte B, Hristov P, Huang M, Humanic TJ, Hussain N, Hussain T, Hutter D, Hwang DS, Ilkaev R, Ilkiv I, Inaba M, Ionita C, Ippolitov M, Irfan M, Ivanov M, Ivanov V, Izucheev V, Jacobs PM, Jahnke C, Jang HJ, Janik MA, Jayarathna PHSY, Jena C, Jena S, Bustamante RTJ, Jones PG, Jung H, Jusko A, Kalinak P, Kalweit A, Kamin J, Kang JH, Kaplin V, Kar S, Uysal AK, Karavichev O, Karavicheva T, Karpechev E, Kebschull U, Keidel R, Keijdener DLD, Keil M, Khan KH, Khan MM, Khan P, Khan SA, Khanzadeev A, Kharlov Y, Kileng B, Kim B, Kim DW, Kim DJ, Kim H, Kim JS, Kim M, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kiss G, Klay JL, Klein C, Klein J, Klein-Bösing C, Kluge A, Knichel ML, Knospe AG, Kobayashi T, Kobdaj C, Kofarago M, Köhler MK, Kollegger T, Kolojvari A, Kondratiev V, Kondratyeva N, Kondratyuk E, Konevskikh A, Kouzinopoulos C, Kovalenko O, Kovalenko V, Kowalski M, Kox S, Meethaleveedu GK, Kral J, Králik I, Kravčáková A, Krelina M, Kretz M, Krivda M, Krizek F, Kryshen E, Krzewicki M, Kubera AM, Kučera V, Kucheriaev Y, Kugathasan T, Kuhn C, Kuijer PG, Kulakov I, Kumar J, Kumar L, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kushpil S, Kweon MJ, Kwon Y, Pointe SLL, Rocca PL, Fernandes CL, Lakomov I, Langoy R, Lara C, Lardeux A, Lattuca A, Laudi E, Lea R, Leardini L, Lee GR, Lee S, Legrand I, Lehnert J, Lemmon RC, Lenti V, Leogrande E, Monzón IL, Leoncino M, Lévai P, Li S, Li X, Lien J, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Ljunggren HM, Lodato DF, Loenne PI, Loggins VR, Loginov V, Loizides C, Lopez X, Torres EL, Lowe A, Lu XG, Luettig P, Lunardon M, Luparello G, Maevskaya A, Mager M, Mahajan S, Mahmood SM, Maire A, Majka RD, Malaev M, Cervantes IM, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manceau L, Manko V, Manso F, Manzari V, Marchisone M, Mareš J, Margagliotti GV, Margotti A, Margutti J, Marín A, Markert C, Marquard M, Martin NA, Blanco JM, Martinengo P, Martínez MI, Martínez García G, Pedreira MM, Martynov Y, Mas A, Masciocchi S, Masera M, Masoni A, Massacrier L, Mastroserio A, Masui H, Matyja A, Mayer C, Mazer J, Mazzoni MA, Mcdonald D, Meddi F, Menchaca-Rocha A, Meninno E, Pérez JM, Meres M, Miake Y, Mieskolainen MM, Mikhaylov K, Milano L, Milosevic J, Minervini LM, Mischke A, Mishra AN, Miśkowiec D, Mitra J, Mitu CM, Mohammadi N, Mohanty B, Molnar L, Zetina LM, Montes E, Morando M, Godoy DAMD, Moretto S, Morreale A, Morsch A, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Müller H, Mulligan JD, Munhoz MG, Murray S, Musa L, Musinsky J, Nandi BK, Nania R, Nappi E, Naru MU, Nattrass C, Nayak K, Nayak TK, Nazarenko S, Nedosekin A, Nellen L, Ng F, Nicassio M, Niculescu M, Niedziela J, Nielsen BS, Nikolaev S, Nikulin S, Nikulin V, Noferini F, Nomokonov P, Nooren G, Norman J, Nyanin A, Nystrand J, Oeschler H, Oh S, Oh SK, Ohlson A, Okatan A, Okubo T, Olah L, Oleniacz J, Silva ACOD, Oliver MH, Onderwaater J, Oppedisano C, Velasquez AO, Oskarsson A, Otwinowski J, Oyama K, Ozdemir M, Pachmayer Y, Pagano P, Paić G, Pajares C, Pal SK, Pan J, Pandey AK, Pant D, Papikyan V, Pappalardo GS, Pareek P, Park WJ, Parmar S, Passfeld A, Paticchio V, Paul B, Pawlak T, Peitzmann T, Costa HPD, Filho EPDO, Peresunko D, Lara CEP, Peskov V, Pestov Y, Petráček V, Petrov V, Petrovici M, Petta C, Piano S, Pikna M, Pillot P, Pinazza O, Pinsky L, Piyarathna DB, Płoskoń M, Planinic M, Pluta J, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Polichtchouk B, Poljak N, Poonsawat W, Pop A, Porteboeuf-Houssais S, Porter J, Pospisil J, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puccio M, Puddu G, Pujahari P, Punin V, Putschke J, Qvigstad H, Rachevski A, Raha S, Rajput S, Rak J, Rakotozafindrabe A, Ramello L, Raniwala R, Raniwala S, Räsänen SS, Rascanu BT, Rathee D, Razazi V, Read KF, Real JS, Redlich K, Reed RJ, Rehman A, Reichelt P, Reicher M, Reidt F, Ren X, Renfordt R, Reolon AR, Reshetin A, Rettig F, Revol JP, Reygers K, Riabov V, Ricci RA, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Ristea C, Rivetti A, Rocco E, Cahuantzi MR, Manso AR, Røed K, Rogochaya E, Rohr D, Röhrich D, Romita R, Ronchetti F, Ronflette L, Rosnet P, Rossi A, Roukoutakis F, Roy A, Roy C, Roy P, Montero AJR, Rui R, Russo R, Ryabinkin E, Ryabov Y, Rybicki A, Sadovsky S, Šafařík K, Sahlmuller B, Sahoo P, Sahoo R, Sahoo S, Sahu PK, Saini J, Sakai S, Saleh MA, Salgado CA, Salzwedel J, Sambyal S, Samsonov V, Castro XS, Šándor L, Sandoval A, Sano M, Santagati G, Sarkar D, Scapparone E, Scarlassara F, Scharenberg RP, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schuchmann S, Schukraft J, Schulc M, Schuster T, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott R, Seeder KS, Seger JE, Sekiguchi Y, Selyuzhenkov I, Senosi K, Seo J, Serradilla E, Sevcenco A, Shabanov A, Shabetai A, Shadura O, Shahoyan R, Shangaraev A, Sharma A, Sharma N, Shigaki K, Shtejer K, Sibiriak Y, Siddhanta S, Sielewicz KM, Siemiarczuk T, Silvermyr D, Silvestre C, Simatovic G, Simonetti G, Singaraju R, Singh R, Singha S, Singhal V, Sinha BC, Sinha T, Sitar B, Sitta M, Skaali TB, Slupecki M, Smirnov N, Snellings RJM, Snellman TW, Søgaard C, Soltz R, Song J, Song M, Song Z, Soramel F, Sorensen S, Spacek M, Spiriti E, Sputowska I, Stassinaki MS, Srivastava BK, Stachel J, Stan I, Stefanek G, Steinpreis M, Stenlund E, Steyn G, Stiller JH, Stocco D, Strmen P, Suaide AAP, Sugitate T, Suire C, Suleymanov M, Sultanov R, Šumbera M, Symons TJM, Szabo A, Toledo ASD, Szarka I, Szczepankiewicz A, Szymanski M, Takahashi J, Tanaka N, Tangaro MA, Takaki JDT, Peloni AT, Tariq M, Tarzila MG, Tauro A, Muñoz GT, Telesca A, Terasaki K, Terrevoli C, Teyssier B, Thäder J, Thomas D, Tieulent R, Timmins AR, Toia A, Trogolo S, Trubnikov V, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Tveter TS, Ullaland K, Uras A, Usai GL, Utrobicic A, Vajzer M, Vala M, Palomo LV, Vallero S, Maarel JVD, Hoorne JWV, Leeuwen MV, Vanat T, Vyvre PV, Varga D, Vargas A, Vargyas M, Varma R, Vasileiou M, Vasiliev A, Vauthier A, Vechernin V, Veen AM, Veldhoen M, Velure A, Venaruzzo M, Vercellin E, Limón SV, Vernet R, Verweij M, Vickovic L, Viesti G, Viinikainen J, Vilakazi Z, Baillie OV, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Vislavicius V, Viyogi YP, Vodopyanov A, Völkl MA, Voloshin K, Voloshin SA, Volpe G, Haller BV, Vorobyev I, Vranic D, Vrláková J, Vulpescu B, Vyushin A, Wagner B, Wagner J, Wang H, Wang M, Wang Y, Watanabe D, Weber M, Weber SG, Wessels JP, Westerhoff U, Wiechula J, Wikne J, Wilde M, Wilk G, Wilkinson J, Williams MCS, Windelband B, Winn M, Yaldo CG, Yamaguchi Y, Yang H, Yang P, Yano S, Yasnopolskiy S, Yin Z, Yokoyama H, Yoo IK, Yurchenko V, Yushmanov I, Zaborowska A, Zaccolo V, Zaman A, Zampolli C, Zanoli HJC, Zaporozhets S, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zgura IS, Zhalov M, Zhang H, Zhang X, Zhang Y, Zhao C, Zhigareva N, Zhou D, Zhou Y, Zhou Z, Zhu H, Zhu J, Zhu X, Zichichi A, Zimmermann A, Zimmermann MB, Zinovjev G, Zyzak M. Measurement of pion, kaon and proton production in proton-proton collisions at [Formula: see text] TeV. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 2015; 75:226. [PMID: 26041975 PMCID: PMC4446008 DOI: 10.1140/epjc/s10052-015-3422-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 04/20/2015] [Indexed: 05/14/2023]
Abstract
The measurement of primary [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text] production at mid-rapidity ([Formula: see text] 0.5) in proton-proton collisions at [Formula: see text][Formula: see text] 7 TeV performed with a large ion collider experiment at the large hadron collider (LHC) is reported. Particle identification is performed using the specific ionisation energy-loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink-topology identification of weak decays of charged kaons. Transverse momentum spectra are measured from 0.1 up to 3 GeV/[Formula: see text] for pions, from 0.2 up to 6 GeV/[Formula: see text] for kaons and from 0.3 up to 6 GeV/[Formula: see text] for protons. The measured spectra and particle ratios are compared with quantum chromodynamics-inspired models, tuned to reproduce also the earlier measurements performed at the LHC. Furthermore, the integrated particle yields and ratios as well as the average transverse momenta are compared with results at lower collision energies.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Contin G, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Eyser O, Fatemi R, Fazio S, Fedorisin J, Filip P, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Kosarzewski LK, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma GL, Ma YG, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Olvitt DL, Page BS, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Pile P, Planinic M, Pluta J, Poljak N, Poniatowska K, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Simko M, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szelezniak MA, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu J, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. ΛΛ Correlation function in Au+Au collisions at √[S(NN)]=200 GeV. PHYSICAL REVIEW LETTERS 2015; 114:022301. [PMID: 25635541 DOI: 10.1103/physrevlett.114.022301] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Indexed: 06/04/2023]
Abstract
We present ΛΛ correlation measurements in heavy-ion collisions for Au+Au collisions at sqrt[s_{NN}]=200 GeV using the STAR experiment at the Relativistic Heavy-Ion Collider. The Lednický-Lyuboshitz analytical model has been used to fit the data to obtain a source size, a scattering length and an effective range. Implications of the measurement of the ΛΛ correlation function and interaction parameters for dihyperon searches are discussed.
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Abelev B, Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agostinelli A, Agrawal N, Ahammed Z, Ahmad N, Ahmed I, Ahn SU, Ahn SA, Aimo I, Aiola S, Ajaz M, Akindinov A, Alam SN, Aleksandrov D, Alessandro B, Alexandre D, Alici A, Alkin A, Alme J, Alt T, Altinpinar S, Altsybeev I, Alves Garcia Prado C, Andrei C, Andronic A, Anguelov V, Anielski J, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arcelli S, Armesto N, Arnaldi R, Aronsson T, Arsene IC, Arslandok M, Augustinus A, Averbeck R, Awes TC, Azmi MD, Bach M, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Baldisseri A, Baltasar Dos Santos Pedrosa F, Baral RC, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartke J, Basile M, Bastid N, Basu S, Bathen B, Batigne G, Batista Camejo A, Batyunya B, Batzing PC, Baumann C, Bearden IG, Beck H, Bedda C, Behera NK, Belikov I, Bellini F, Bellwied R, Belmont-Moreno E, Belmont R, Belyaev V, Bencedi G, Beole S, Berceanu I, Bercuci A, Berdnikov Y, Berenyi D, Berger ME, Bertens RA, Berzano D, Betev L, Bhasin A, Bhat IR, Bhati AK, Bhattacharjee B, Bhom J, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Bjelogrlic S, Blanco F, Blau D, Blume C, Bock F, Bogdanov A, Bøggild H, Bogolyubsky M, Böhmer FV, Boldizsár L, Bombara M, Book J, Borel H, Borissov A, Bossú F, Botje M, Botta E, Böttger S, Braun-Munzinger P, Bregant M, Breitner T, Broker TA, Browning TA, Broz M, Bruna E, Bruno GE, Budnikov D, Buesching H, Bufalino S, Buncic P, Busch O, Buthelezi Z, Caffarri D, Cai X, Caines H, Calero Diaz L, Caliva A, Calvo Villar E, Camerini P, Carena F, Carena W, Castillo Castellanos J, Casula EAR, Catanescu V, Cavicchioli C, Ceballos Sanchez C, Cepila J, Cerello P, Chang B, Chapeland S, Charvet JL, Chattopadhyay S, Chattopadhyay S, Chelnokov V, Cherney M, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato DD, Chochula P, Chojnacki M, Choudhury S, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chung SU, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Conesa Balbastre G, Conesa Del Valle Z, Connors ME, Contreras JG, Cormier TM, Corrales Morales Y, Cortese P, Cortés Maldonado I, Cosentino MR, Costa F, Crochet P, Cruz Albino R, Cuautle E, Cunqueiro L, Dainese A, Dang R, Danu A, Das D, Das I, Das K, Das S, Dash A, Dash S, De S, Delagrange H, Deloff A, Dénes E, D'Erasmo G, De Caro A, de Cataldo G, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, de Rooij R, Diaz Corchero MA, Dietel T, Dillenseger P, Divià R, Di Bari D, Di Liberto S, Di Mauro A, Di Nezza P, Djuvsland Ø, Dobrin A, Dobrowolski T, Domenicis Gimenez D, Dönigus B, Dordic O, Dørheim S, Dubey AK, Dubla A, Ducroux L, Dupieux P, Dutta Majumdar AK, Hilden TE, Ehlers RJ, Elia D, Engel H, Erazmus B, Erdal HA, Eschweiler D, Espagnon B, Esposito M, Estienne M, Esumi S, Evans D, Evdokimov S, Fabris D, Faivre J, Falchieri D, Fantoni A, Fasel M, Fehlker D, Feldkamp L, Felea D, Feliciello A, Feofilov G, Ferencei J, Fernández Téllez A, Ferreiro EG, Ferretti A, Festanti A, Figiel J, Figueredo MAS, Filchagin S, Finogeev D, Fionda FM, Fiore EM, Floratos E, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Frankenfeld U, Fuchs U, Furget C, Furs A, Fusco Girard M, Gaardhøje JJ, Gagliardi M, Gago AM, Gallio M, Gangadharan DR, Ganoti P, Gao C, Garabatos C, Garcia-Solis E, Gargiulo C, Garishvili I, Gerhard J, Germain M, Gheata A, Gheata M, Ghidini B, Ghosh P, Ghosh SK, Gianotti P, Giubellino P, Gladysz-Dziadus E, Glässel P, Gomez Ramirez A, González-Zamora P, Gorbunov S, Görlich L, Gotovac S, Graczykowski LK, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Grosse-Oetringhaus JF, Grossiord JY, Grosso R, Guber F, Guernane R, Guerzoni B, Guilbaud M, Gulbrandsen K, Gulkanyan H, Gumbo M, Gunji T, Gupta A, Gupta R, Khan KH, Haake R, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Hanratty LD, Hansen A, Harris JW, Hartmann H, Harton A, Hatzifotiadou D, Hayashi S, Heckel ST, Heide M, Helstrup H, Herghelegiu A, Herrera Corral G, Hess BA, Hetland KF, Hippolyte B, Hladky J, Hristov P, Huang M, Humanic TJ, Hussain N, Hutter D, Hwang DS, Ilkaev R, Ilkiv I, Inaba M, Innocenti GM, Ionita C, Ippolitov M, Irfan M, Ivanov M, Ivanov V, Jachołkowski A, Jacobs PM, Jahnke C, Jang HJ, Janik MA, Jayarathna PHSY, Jena C, Jena S, Jimenez Bustamante RT, Jones PG, Jung H, Jusko A, Kadyshevskiy V, Kalcher S, Kalinak P, Kalweit A, Kamin J, Kang JH, Kaplin V, Kar S, Karasu Uysal A, Karavichev O, Karavicheva T, Karpechev E, Kebschull U, Keidel R, Keijdener DLD, Keil Svn M, Khan MM, Khan P, Khan SA, Khanzadeev A, Kharlov Y, Kileng B, Kim B, Kim DW, Kim DJ, Kim JS, Kim M, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kiss G, Klay JL, Klein J, Klein-Bösing C, Kluge A, Knichel ML, Knospe AG, Kobdaj C, Kofarago M, Köhler MK, Kollegger T, Kolojvari A, Kondratiev V, Kondratyeva N, Konevskikh A, Kovalenko V, Kowalski M, Kox S, Koyithatta Meethaleveedu G, Kral J, Králik I, Kravčáková A, Krelina M, Kretz M, Krivda M, Krizek F, Kryshen E, Krzewicki M, Kučera V, Kucheriaev Y, Kugathasan T, Kuhn C, Kuijer PG, Kulakov I, Kumar J, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kushpil S, Kweon MJ, Kwon Y, Ladron de Guevara P, Lagana Fernandes C, Lakomov I, Langoy R, Lara C, Lardeux A, Lattuca A, La Pointe SL, La Rocca P, Lea R, Leardini L, Lee GR, Legrand I, Lehnert J, Lemmon RC, Lenti V, Leogrande E, Leoncino M, León Monzón I, Lévai P, Li S, Lien J, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Ljunggren HM, Lodato DF, Loenne PI, Loggins VR, Loginov V, Lohner D, Loizides C, Lopez X, López Torres E, Lu XG, Luettig P, Lunardon M, Luparello G, Ma R, Maevskaya A, Mager M, Mahapatra DP, Mahmood SM, Maire A, Majka RD, Malaev M, Maldonado Cervantes I, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manceau L, Manko V, Manso F, Manzari V, Marchisone M, Mareš J, Margagliotti GV, Margotti A, Marín A, Markert C, Marquard M, Martashvili I, Martin NA, Martinengo P, Martínez MI, Martínez García G, Martin Blanco J, Martynov Y, Mas A, Masciocchi S, Masera M, Masoni A, Massacrier L, Mastroserio A, Matyja A, Mayer C, Mazer J, Mazzoni MA, Meddi F, Menchaca-Rocha A, Meninno E, Mercado Pérez J, Meres M, Miake Y, Mikhaylov K, Milano L, Milosevic J, Mischke A, Mishra AN, Miśkowiec D, Mitra J, Mitu CM, Mlynarz J, Mohammadi N, Mohanty B, Molnar L, Montaño Zetina L, Montes E, Morando M, Moreira De Godoy DA, Moretto S, Morreale A, Morsch A, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Müller H, Munhoz MG, Murray S, Musa L, Musinsky J, Nandi BK, Nania R, Nappi E, Nattrass C, Nayak K, Nayak TK, Nazarenko S, Nedosekin A, Nicassio M, Niculescu M, Nielsen BS, Nikolaev S, Nikulin S, Nikulin V, Nilsen BS, Noferini F, Nomokonov P, Nooren G, Norman J, Nyanin A, Nystrand J, Oeschler H, Oh S, Oh SK, Okatan A, Olah L, Oleniacz J, Oliveira Da Silva AC, Onderwaater J, Oppedisano C, Ortiz Velasquez A, Oskarsson A, Otwinowski J, Oyama K, Ozdemir M, Sahoo P, Pachmayer Y, Pachr M, Pagano P, Paić G, Painke F, Pajares C, Pal SK, Palmeri A, Pant D, Papikyan V, Pappalardo GS, Pareek P, Park WJ, Parmar S, Passfeld A, Patalakha DI, Paticchio V, Paul B, Pawlak T, Peitzmann T, Pereira Da Costa H, Pereira De Oliveira Filho E, Peresunko D, Pérez Lara CE, Pesci A, Peskov V, Pestov Y, Petráček V, Petran M, Petris M, Petrovici M, Petta C, Piano S, Pikna M, Pillot P, Pinazza O, Pinsky L, Piyarathna DB, Płoskoń M, Planinic M, Pluta J, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Pohjoisaho EHO, Polichtchouk B, Poljak N, Pop A, Porteboeuf-Houssais S, Porter J, Potukuchi B, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puddu G, Pujahari P, Punin V, Putschke J, Qvigstad H, Rachevski A, Raha S, Rak J, Rakotozafindrabe A, Ramello L, Raniwala R, Raniwala S, Räsänen SS, Rascanu BT, Rathee D, Rauf AW, Razazi V, Read KF, Real JS, Redlich K, Reed RJ, Rehman A, Reichelt P, Reicher M, Reidt F, Renfordt R, Reolon AR, Reshetin A, Rettig F, Revol JP, Reygers K, Riabov V, Ricci RA, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Rivetti A, Rocco E, Rodríguez Cahuantzi M, Rodriguez Manso A, Røed K, Rogochaya E, Rohni S, Rohr D, Röhrich D, Romita R, Ronchetti F, Ronflette L, Rosnet P, Rossi A, Roukoutakis F, Roy A, Roy C, Roy P, Rubio Montero AJ, Rui R, Russo R, Ryabinkin E, Ryabov Y, Rybicki A, Sadovsky S, Šafařík K, Sahlmuller B, Sahoo R, Sahu PK, Saini J, Sakai S, Salgado CA, Salzwedel J, Sambyal S, Samsonov V, Sanchez Castro X, Sánchez Rodríguez FJ, Šándor L, Sandoval A, Sano M, Santagati G, Sarkar D, Scapparone E, Scarlassara F, Scharenberg RP, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schuchmann S, Schukraft J, Schulc M, Schuster T, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott R, Segato G, Seger JE, Sekiguchi Y, Selyuzhenkov I, Seo J, Serradilla E, Sevcenco A, Shabetai A, Shabratova G, Shahoyan R, Shangaraev A, Sharma N, Sharma S, Shigaki K, Shtejer K, Sibiriak Y, Siddhanta S, Siemiarczuk T, Silvermyr D, Silvestre C, Simatovic G, Singaraju R, Singh R, Singha S, Singhal V, Sinha BC, Sinha T, Sitar B, Sitta M, Skaali TB, Skjerdal K, Slupecki M, Smirnov N, Snellings RJM, Søgaard C, Soltz R, Song J, Song M, Soramel F, Sorensen S, Spacek M, Spiriti E, Sputowska I, Spyropoulou-Stassinaki M, Srivastava BK, Stachel J, Stan I, Stefanek G, Steinpreis M, Stenlund E, Steyn G, Stiller JH, Stocco D, Stolpovskiy M, Strmen P, Suaide AAP, Sugitate T, Suire C, Suleymanov M, Sultanov R, Šumbera M, Susa T, Symons TJM, Szabo A, Szanto de Toledo A, Szarka I, Szczepankiewicz A, Szymanski M, Takahashi J, Tangaro MA, Tapia Takaki JD, Tarantola Peloni A, Tarazona Martinez A, Tarzila MG, Tauro A, Tejeda Muñoz G, Telesca A, Terrevoli C, Thäder J, Thomas D, Tieulent R, Timmins AR, Toia A, Trubnikov V, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Tveter TS, Ullaland K, Uras A, Usai GL, Vajzer M, Vala M, Valencia Palomo L, Vallero S, Vande Vyvre P, Van Der Maarel J, Van Hoorne JW, van Leeuwen M, Vargas A, Vargyas M, Varma R, Vasileiou M, Vasiliev A, Vechernin V, Veldhoen M, Velure A, Venaruzzo M, Vercellin E, Vergara Limón S, Vernet R, Verweij M, Vickovic L, Viesti G, Viinikainen J, Vilakazi Z, Villalobos Baillie O, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Viyogi YP, Vodopyanov A, Völkl MA, Voloshin K, Voloshin SA, Volpe G, von Haller B, Vorobyev I, Vranic D, Vrláková J, Vulpescu B, Vyushin A, Wagner B, Wagner J, Wagner V, Wang M, Wang Y, Watanabe D, Weber M, Wessels JP, Westerhoff U, Wiechula J, Wikne J, Wilde M, Wilk G, Wilkinson J, Williams MCS, Windelband B, Winn M, Yaldo CG, Yamaguchi Y, Yang H, Yang P, Yang S, Yano S, Yasnopolskiy S, Yi J, Yin Z, Yoo IK, Yushmanov I, Zaccolo V, Zach C, Zaman A, Zampolli C, Zaporozhets S, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zgura IS, Zhalov M, Zhang H, Zhang X, Zhang Y, Zhao C, Zhigareva N, Zhou D, Zhou F, Zhou Y, Zhou Z, Zhu H, Zhu J, Zhu X, Zichichi A, Zimmermann A, Zimmermann MB, Zinovjev G, Zoccarato Y, Zyzak M. Exclusive J/ψ photoproduction off protons in ultraperipheral p-Pb collisions at √(s(NN))=5.02 TeV. PHYSICAL REVIEW LETTERS 2014; 113:232504. [PMID: 25526123 DOI: 10.1103/physrevlett.113.232504] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Indexed: 06/04/2023]
Abstract
We present the first measurement at the LHC of exclusive J/ψ photoproduction off protons, in ultraperipheral proton-lead collisions at sqrt[s_{NN}]=5.02 TeV. Events are selected with a dimuon pair produced either in the rapidity interval, in the laboratory frame, 2.5<y<4 (p-Pb) or -3.6<y<-2.6 (Pb-p), and no other particles observed in the ALICE acceptance. The measured cross sections σ(γ+p→J/ψ+p) are 33.2±2.2(stat)±3.2(syst)±0.7(theor) nb in p-Pb and 284±36(stat)_{-32}^{+27}(syst)±26(theor) nb in Pb-p collisions. We measure this process up to about 700 GeV in the γp center of mass, which is a factor of two larger than the highest energy studied at HERA. The data are consistent with a power law dependence of the J/ψ photoproduction cross section in γp energies from about 20 to 700 GeV, or equivalently, from Bjorken x scaling variable between ∼2×10^{-2} and ∼2×10^{-5}, thus indicating no significant change in the gluon density behavior of the proton between HERA and LHC energies.
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Abelev B, Adam J, Adamová D, Aggarwal MM, Aglieri Rinella G, Agnello M, Agostinelli A, Agrawal N, Ahammed Z, Ahmad N, Ahmed I, Ahn SU, Ahn SA, Aimo I, Aiola S, Ajaz M, Akindinov A, Alam SN, Aleksandrov D, Alessandro B, Alexandre D, Alici A, Alkin A, Alme J, Alt T, Altinpinar S, Altsybeev I, Alves Garcia Prado C, Andrei C, Andronic A, Anguelov V, Anielski J, Antičić T, Antinori F, Antonioli P, Aphecetche L, Appelshäuser H, Arcelli S, Armesto N, Arnaldi R, Aronsson T, Arsene IC, Arslandok M, Augustinus A, Averbeck R, Awes TC, Azmi MD, Bach M, Badalà A, Baek YW, Bagnasco S, Bailhache R, Bala R, Baldisseri A, Baltasar Dos Santos Pedrosa F, Baral RC, Barbera R, Barile F, Barnaföldi GG, Barnby LS, Barret V, Bartke J, Basile M, Bastid N, Basu S, Bathen B, Batigne G, Batyunya B, Batzing PC, Baumann C, Bearden IG, Beck H, Bedda C, Behera NK, Belikov I, Bellini F, Bellwied R, Belmont-Moreno E, Belmont R, Belyaev V, Bencedi G, Beole S, Berceanu I, Bercuci A, Berdnikov Y, Berenyi D, Berger ME, Bertens RA, Berzano D, Betev L, Bhasin A, Bhat IR, Bhati AK, Bhattacharjee B, Bhom J, Bianchi L, Bianchi N, Bianchin C, Bielčík J, Bielčíková J, Bilandzic A, Bjelogrlic S, Blanco F, Blau D, Blume C, Bock F, Bogdanov A, Bøggild H, Bogolyubsky M, Böhmer FV, Boldizsár L, Bombara M, Book J, Borel H, Borissov A, Bossú F, Botje M, Botta E, Böttger S, Braun-Munzinger P, Bregant M, Breitner T, Broker TA, Browning TA, Broz M, Bruna E, Bruno GE, Budnikov D, Buesching H, Bufalino S, Buncic P, Busch O, Buthelezi Z, Caffarri D, Cai X, Caines H, Calero Diaz L, Caliva A, Calvo Villar E, Camerini P, Carena F, Carena W, Castillo Castellanos J, Casula EAR, Catanescu V, Cavicchioli C, Ceballos Sanchez C, Cepila J, Cerello P, Chang B, Chapeland S, Charvet JL, Chattopadhyay S, Chattopadhyay S, Chelnokov V, Cherney M, Cheshkov C, Cheynis B, Chibante Barroso V, Chinellato DD, Chochula P, Chojnacki M, Choudhury S, Christakoglou P, Christensen CH, Christiansen P, Chujo T, Chung SU, Cicalo C, Cifarelli L, Cindolo F, Cleymans J, Colamaria F, Colella D, Collu A, Colocci M, Conesa Balbastre G, Conesa Del Valle Z, Connors ME, Contreras JG, Cormier TM, Corrales Morales Y, Cortese P, Cortés Maldonado I, Cosentino MR, Costa F, Crochet P, Cruz Albino R, Cuautle E, Cunqueiro L, Dainese A, Dang R, Danu A, Das D, Das I, Das K, Das S, Dash A, Dash S, De S, Delagrange H, Deloff A, Dénes E, D'Erasmo G, De Caro A, de Cataldo G, de Cuveland J, De Falco A, De Gruttola D, De Marco N, De Pasquale S, de Rooij R, Diaz Corchero MA, Dietel T, Dillenseger P, Divià R, Di Bari D, Di Liberto S, Di Mauro A, Di Nezza P, Djuvsland Ø, Dobrin A, Dobrowolski T, Domenicis Gimenez D, Dönigus B, Dordic O, Dørheim S, Dubey AK, Dubla A, Ducroux L, Dupieux P, Dutta Majumdar AK, Hilden TE, Ehlers RJ, Elia D, Engel H, Erazmus B, Erdal HA, Eschweiler D, Espagnon B, Esposito M, Estienne M, Esumi S, Evans D, Evdokimov S, Fabris D, Faivre J, Falchieri D, Fantoni A, Fasel M, Fehlker D, Feldkamp L, Felea D, Feliciello A, Feofilov G, Ferencei J, Fernández Téllez A, Ferreiro EG, Ferretti A, Festanti A, Figiel J, Figueredo MAS, Filchagin S, Finogeev D, Fionda FM, Fiore EM, Floratos E, Floris M, Foertsch S, Foka P, Fokin S, Fragiacomo E, Francescon A, Frankenfeld U, Fuchs U, Furget C, Fusco Girard M, Gaardhøje JJ, Gagliardi M, Gago AM, Gallio M, Gangadharan DR, Ganoti P, Garabatos C, Garcia-Solis E, Gargiulo C, Garishvili I, Gerhard J, Germain M, Gheata A, Gheata M, Ghidini B, Ghosh P, Ghosh SK, Gianotti P, Giubellino P, Gladysz-Dziadus E, Glässel P, Gomez Ramirez A, González-Zamora P, Gorbunov S, Görlich L, Gotovac S, Graczykowski LK, Grelli A, Grigoras A, Grigoras C, Grigoriev V, Grigoryan A, Grigoryan S, Grinyov B, Grion N, Grosse-Oetringhaus JF, Grossiord JY, Grosso R, Guber F, Guernane R, Guerzoni B, Guilbaud M, Gulbrandsen K, Gulkanyan H, Gumbo M, Gunji T, Gupta A, Gupta R, Khan KH, Haake R, Haaland Ø, Hadjidakis C, Haiduc M, Hamagaki H, Hamar G, Hanratty LD, Hansen A, Harris JW, Hartmann H, Harton A, Hatzifotiadou D, Hayashi S, Heckel ST, Heide M, Helstrup H, Herghelegiu A, Herrera Corral G, Hess BA, Hetland KF, Hippolyte B, Hladky J, Hristov P, Huang M, Humanic TJ, Hussain N, Hutter D, Hwang DS, Ilkaev R, Ilkiv I, Inaba M, Innocenti GM, Ionita C, Ippolitov M, Irfan M, Ivanov M, Ivanov V, Jachołkowski A, Jacobs PM, Jahnke C, Jang HJ, Janik MA, Jayarathna PHSY, Jena C, Jena S, Jimenez Bustamante RT, Jones PG, Jung H, Jusko A, Kadyshevskiy V, Kalcher S, Kalinak P, Kalweit A, Kamin J, Kang JH, Kaplin V, Kar S, Karasu Uysal A, Karavichev O, Karavicheva T, Karpechev E, Kebschull U, Keidel R, Keijdener DLD, Khan MM, Khan P, Khan SA, Khanzadeev A, Kharlov Y, Kileng B, Kim B, Kim DW, Kim DJ, Kim JS, Kim M, Kim M, Kim S, Kim T, Kirsch S, Kisel I, Kiselev S, Kisiel A, Kiss G, Klay JL, Klein J, Klein-Bösing C, Kluge A, Knichel ML, Knospe AG, Kobdaj C, Kofarago M, Köhler MK, Kollegger T, Kolojvari A, Kondratiev V, Kondratyeva N, Konevskikh A, Kovalenko V, Kowalski M, Kox S, Koyithatta Meethaleveedu G, Kral J, Králik I, Kravčáková A, Krelina M, Kretz M, Krivda M, Krizek F, Kryshen E, Krzewicki M, Kučera V, Kucheriaev Y, Kugathasan T, Kuhn C, Kuijer PG, Kulakov I, Kumar J, Kurashvili P, Kurepin A, Kurepin AB, Kuryakin A, Kushpil S, Kweon MJ, Kwon Y, Ladron de Guevara P, Lagana Fernandes C, Lakomov I, Langoy R, Lara C, Lardeux A, Lattuca A, La Pointe SL, La Rocca P, Lea R, Leardini L, Lee GR, Legrand I, Lehnert J, Lemmon RC, Lenti V, Leogrande E, Leoncino M, León Monzón I, Lévai P, Li S, Lien J, Lietava R, Lindal S, Lindenstruth V, Lippmann C, Lisa MA, Ljunggren HM, Lodato DF, Loenne PI, Loggins VR, Loginov V, Lohner D, Loizides C, Lopez X, López Torres E, Lu XG, Luettig P, Lunardon M, Luparello G, Luzzi C, Ma R, Maevskaya A, Mager M, Mahapatra DP, Mahmood SM, Maire A, Majka RD, Malaev M, Maldonado Cervantes I, Malinina L, Mal'Kevich D, Malzacher P, Mamonov A, Manceau L, Manko V, Manso F, Manzari V, Marchisone M, Mareš J, Margagliotti GV, Margotti A, Marín A, Markert C, Marquard M, Martashvili I, Martin NA, Martinengo P, Martínez MI, Martínez García G, Martin Blanco J, Martynov Y, Mas A, Masciocchi S, Masera M, Masoni A, Massacrier L, Mastroserio A, Matyja A, Mayer C, Mazer J, Mazzoni MA, Meddi F, Menchaca-Rocha A, Meninno E, Mercado Pérez J, Meres M, Miake Y, Mikhaylov K, Milano L, Milosevic J, Mischke A, Mishra AN, Miśkowiec D, Mitra J, Mitu CM, Mlynarz J, Mohammadi N, Mohanty B, Molnar L, Montaño Zetina L, Montes E, Morando M, Moreira De Godoy DA, Moretto S, Morreale A, Morsch A, Muccifora V, Mudnic E, Mühlheim D, Muhuri S, Mukherjee M, Müller H, Munhoz MG, Murray S, Musa L, Musinsky J, Nandi BK, Nania R, Nappi E, Nattrass C, Nayak K, Nayak TK, Nazarenko S, Nedosekin A, Nicassio M, Niculescu M, Nielsen BS, Nikolaev S, Nikulin S, Nikulin V, Nilsen BS, Noferini F, Nomokonov P, Nooren G, Norman J, Nyanin A, Nystrand J, Oeschler H, Oh S, Oh SK, Okatan A, Olah L, Oleniacz J, Oliveira Da Silva AC, Onderwaater J, Oppedisano C, Ortiz Velasquez A, Oskarsson A, Otwinowski J, Oyama K, Ozdemir M, Sahoo P, Pachmayer Y, Pachr M, Pagano P, Paić G, Painke F, Pajares C, Pal SK, Palmeri A, Pant D, Papikyan V, Pappalardo GS, Pareek P, Park WJ, Parmar S, Passfeld A, Patalakha DI, Paticchio V, Paul B, Pawlak T, Peitzmann T, Pereira Da Costa H, Pereira De Oliveira Filho E, Peresunko D, Pérez Lara CE, Pesci A, Peskov V, Pestov Y, Petráček V, Petran M, Petris M, Petrovici M, Petta C, Piano S, Pikna M, Pillot P, Pinazza O, Pinsky L, Piyarathna DB, Płoskoń M, Planinic M, Pluta J, Pochybova S, Podesta-Lerma PLM, Poghosyan MG, Pohjoisaho EHO, Polichtchouk B, Poljak N, Pop A, Porteboeuf-Houssais S, Porter J, Potukuchi B, Prasad SK, Preghenella R, Prino F, Pruneau CA, Pshenichnov I, Puddu G, Pujahari P, Punin V, Putschke J, Qvigstad H, Rachevski A, Raha S, Rak J, Rakotozafindrabe A, Ramello L, Raniwala R, Raniwala S, Räsänen SS, Rascanu BT, Rathee D, Rauf AW, Razazi V, Read KF, Real JS, Redlich K, Reed RJ, Rehman A, Reichelt P, Reicher M, Reidt F, Renfordt R, Reolon AR, Reshetin A, Rettig F, Revol JP, Reygers K, Riabov V, Ricci RA, Richert T, Richter M, Riedler P, Riegler W, Riggi F, Rivetti A, Rocco E, Rodríguez Cahuantzi M, Rodriguez Manso A, Røed K, Rogochaya E, Rohni S, Rohr D, Röhrich D, Romita R, Ronchetti F, Ronflette L, Rosnet P, Rossi A, Roukoutakis F, Roy A, Roy C, Roy P, Rubio Montero AJ, Rui R, Russo R, Ryabinkin E, Ryabov Y, Rybicki A, Sadovsky S, Šafařík K, Sahlmuller B, Sahoo R, Sahu PK, Saini J, Sakai S, Salgado CA, Salzwedel J, Sambyal S, Samsonov V, Sanchez Castro X, Sánchez Rodríguez FJ, Šándor L, Sandoval A, Sano M, Santagati G, Sarkar D, Scapparone E, Scarlassara F, Scharenberg RP, Schiaua C, Schicker R, Schmidt C, Schmidt HR, Schuchmann S, Schukraft J, Schulc M, Schuster T, Schutz Y, Schwarz K, Schweda K, Scioli G, Scomparin E, Scott R, Segato G, Seger JE, Sekiguchi Y, Selyuzhenkov I, Seo J, Serradilla E, Sevcenco A, Shabetai A, Shabratova G, Shahoyan R, Shangaraev A, Sharma N, Sharma S, Shigaki K, Shtejer K, Sibiriak Y, Siddhanta S, Siemiarczuk T, Silvermyr D, Silvestre C, Simatovic G, Singaraju R, Singh R, Singha S, Singhal V, Sinha BC, Sinha T, Sitar B, Sitta M, Skaali TB, Skjerdal K, Slupecki M, Smirnov N, Snellings RJM, Søgaard C, Soltz R, Song J, Song M, Soramel F, Sorensen S, Spacek M, Spiriti E, Sputowska I, Spyropoulou-Stassinaki M, Srivastava BK, Stachel J, Stan I, Stefanek G, Steinpreis M, Stenlund E, Steyn G, Stiller JH, Stocco D, Stolpovskiy M, Strmen P, Suaide AAP, Sugitate T, Suire C, Suleymanov M, Sultanov R, Šumbera M, Susa T, Symons TJM, Szabo A, Szanto de Toledo A, Szarka I, Szczepankiewicz A, Szymanski M, Takahashi J, Tangaro MA, Tapia Takaki JD, Tarantola Peloni A, Tarazona Martinez A, Tarzila MG, Tauro A, Tejeda Muñoz G, Telesca A, Terrevoli C, Thäder J, Thomas D, Tieulent R, Timmins AR, Toia A, Trubnikov V, Trzaska WH, Tsuji T, Tumkin A, Turrisi R, Tveter TS, Ullaland K, Uras A, Usai GL, Vajzer M, Vala M, Valencia Palomo L, Vallero S, Vande Vyvre P, Van Der Maarel J, Van Hoorne JW, van Leeuwen M, Vargas A, Vargyas M, Varma R, Vasileiou M, Vasiliev A, Vechernin V, Veldhoen M, Velure A, Venaruzzo M, Vercellin E, Vergara Limón S, Vernet R, Verweij M, Vickovic L, Viesti G, Viinikainen J, Vilakazi Z, Villalobos Baillie O, Vinogradov A, Vinogradov L, Vinogradov Y, Virgili T, Viyogi YP, Vodopyanov A, Völkl MA, Voloshin K, Voloshin SA, Volpe G, von Haller B, Vorobyev I, Vranic D, Vrláková J, Vulpescu B, Vyushin A, Wagner B, Wagner J, Wagner V, Wang M, Wang Y, Watanabe D, Weber M, Wessels JP, Westerhoff U, Wiechula J, Wikne J, Wilde M, Wilk G, Wilkinson J, Williams MCS, Windelband B, Winn M, Yaldo CG, Yamaguchi Y, Yang H, Yang P, Yang S, Yano S, Yasnopolskiy S, Yi J, Yin Z, Yoo IK, Yushmanov I, Zaccolo V, Zach C, Zaman A, Zampolli C, Zaporozhets S, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zgura IS, Zhalov M, Zhang H, Zhang X, Zhang Y, Zhao C, Zhigareva N, Zhou D, Zhou F, Zhou Y, Zhou Z, Zhu H, Zhu J, Zhu X, Zichichi A, Zimmermann A, Zimmermann MB, Zinovjev G, Zoccarato Y, Zyzak M. Measurement of prompt D-meson production in p-Pb collisions at √(s(NN))=5.02 TeV. PHYSICAL REVIEW LETTERS 2014; 113:232301. [PMID: 25526119 DOI: 10.1103/physrevlett.113.232301] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Indexed: 06/04/2023]
Abstract
The p_{T}-differential production cross sections of the prompt charmed mesons D^{0}, D^{+}, D^{*+}, and D_{s}^{+} and their charge conjugate in the rapidity interval -0.96<y_{cms}<0.04 were measured in p-Pb collisions at a center-of-mass energy sqrt[s_{NN}]=5.02 TeV with the ALICE detector at the LHC. The nuclear modification factor R_{pPb}, quantifying the D-meson yield in p-Pb collisions relative to the yield in pp collisions scaled by the number of binary nucleon-nucleon collisions, is compatible within the 15%-20% uncertainties with unity in the transverse momentum interval 1<p_{T}<24 GeV/c. No significant difference among the R_{pPb} of the four D-meson species is observed. The results are described within uncertainties by theoretical calculations that include initial-state effects. The measurement adds experimental evidence that the modification of the momentum spectrum of D mesons observed in Pb-Pb collisions with respect to pp collisions is due to strong final-state effects induced by hot partonic matter.
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Pratheek BM, Nayak TK, Sahoo SS, Mohanty PK, Chattopadhyay S, Chakraborty NG, Chattopadhyay S. Mammalian non-classical major histocompatibility complex I and its receptors: Important contexts of gene, evolution, and immunity. INDIAN JOURNAL OF HUMAN GENETICS 2014; 20:129-41. [PMID: 25400340 PMCID: PMC4228563 DOI: 10.4103/0971-6866.142855] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The evolutionary conserved, less-polymorphic, nonclassical major histocompatibility complex (MHC) class I molecules: Qa-1 and its human homologue human leukocyte antigen-E (HLA-E) along with HLA-F, G and H cross-talk with the T-cell receptors and also interact with natural killer T-cells and other lymphocytes. Moreover, these nonclassical MHC molecules are known to interact with CD94/NKG2 heterodimeric receptors to induce immune responses and immune regulations. This dual role of Qa-1/HLA-E in terms of innate and adaptive immunity makes them more interesting. This review highlights the new updates of the mammalian nonclassical MHC-I molecules in terms of their gene organization, evolutionary perspective and their role in immunity.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Contin G, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Eyser O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Olvitt DL, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szelezniak MA, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu J, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Observation of D0 meson nuclear modifications in Au+Au collisions at sqrt[s(NN)] = 200 GeV. PHYSICAL REVIEW LETTERS 2014; 113:142301. [PMID: 25325635 DOI: 10.1103/physrevlett.113.142301] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Indexed: 06/04/2023]
Abstract
We report the first measurement of charmed-hadron (D(0)) production via the hadronic decay channel (D(0) → K(-) + π(+)) in Au+Au collisions at sqrt[s(NN)] = 200 GeV with the STAR experiment. The charm production cross section per nucleon-nucleon collision at midrapidity scales with the number of binary collisions, N(bin), from p+p to central Au+Au collisions. The D(0) meson yields in central Au + Au collisions are strongly suppressed compared to those in p+p scaled by N(bin), for transverse momenta p(T) > 3 GeV/c, demonstrating significant energy loss of charm quarks in the hot and dense medium. An enhancement at intermediate p(T) is also observed. Model calculations including strong charm-medium interactions and coalescence hadronization describe our measurements.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Balewski J, Banerjee A, Barnovska Z, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Corliss R, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Grosnick D, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hajkova O, Hamed A, Han LX, Haque R, Harris JW, Hays-Wehle JP, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Korsch W, Kotchenda L, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Leight W, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lima LM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Munhoz MG, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Oliveira RAN, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Peterson A, Pile P, Planinic M, Pluta J, Plyku D, Poljak N, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandacz A, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, deSouza UG, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Walker M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Beam energy dependence of moments of the net-charge multiplicity distributions in Au+Au collisions at RHIC. PHYSICAL REVIEW LETTERS 2014; 113:092301. [PMID: 25215979 DOI: 10.1103/physrevlett.113.092301] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Indexed: 06/03/2023]
Abstract
We report the first measurements of the moments--mean (M), variance (σ(2)), skewness (S), and kurtosis (κ)--of the net-charge multiplicity distributions at midrapidity in Au+Au collisions at seven energies, ranging from sqrt[sNN]=7.7 to 200 GeV, as a part of the Beam Energy Scan program at RHIC. The moments are related to the thermodynamic susceptibilities of net charge, and are sensitive to the location of the QCD critical point. We compare the products of the moments, σ(2)/M, Sσ, and κσ(2), with the expectations from Poisson and negative binomial distributions (NBDs). The Sσ values deviate from the Poisson baseline and are close to the NBD baseline, while the κσ(2) values tend to lie between the two. Within the present uncertainties, our data do not show nonmonotonic behavior as a function of collision energy. These measurements provide a valuable tool to extract the freeze-out parameters in heavy-ion collisions by comparing with theoretical models.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Balewski J, Banerjee A, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Campbell JM, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Contin G, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Eyser O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Kosarzewski LK, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Olvitt DL, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Poniatowska K, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szelezniak MA, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu J, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Measurement of longitudinal spin asymmetries for weak boson production in polarized proton-proton collisions at RHIC. PHYSICAL REVIEW LETTERS 2014; 113:072301. [PMID: 25170701 DOI: 10.1103/physrevlett.113.072301] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Indexed: 06/03/2023]
Abstract
We report measurements of single- and double-spin asymmetries for W^{±} and Z/γ^{*} boson production in longitudinally polarized p+p collisions at sqrt[s]=510 GeV by the STAR experiment at RHIC. The asymmetries for W^{±} were measured as a function of the decay lepton pseudorapidity, which provides a theoretically clean probe of the proton's polarized quark distributions at the scale of the W mass. The results are compared to theoretical predictions, constrained by polarized deep inelastic scattering measurements, and show a preference for a sizable, positive up antiquark polarization in the range 0.05<x<0.2.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Contin G, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Eyser O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Olvitt DL, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szelezniak MA, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Voloshin SA, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu J, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Beam-energy dependence of charge separation along the magnetic field in Au+Au collisions at RHIC. PHYSICAL REVIEW LETTERS 2014; 113:052302. [PMID: 25126911 DOI: 10.1103/physrevlett.113.052302] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Indexed: 06/03/2023]
Abstract
Local parity-odd domains are theorized to form inside a quark-gluon plasma which has been produced in high-energy heavy-ion collisions. The local parity-odd domains manifest themselves as charge separation along the magnetic field axis via the chiral magnetic effect. The experimental observation of charge separation has previously been reported for heavy-ion collisions at the top RHIC energies. In this Letter, we present the results of the beam-energy dependence of the charge correlations in Au+Au collisions at midrapidity for center-of-mass energies of 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV from the STAR experiment. After background subtraction, the signal gradually reduces with decreased beam energy and tends to vanish by 7.7 GeV. This implies the dominance of hadronic interactions over partonic ones at lower collision energies.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Barnovska Z, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Grosnick D, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hajkova O, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Korsch W, Kotchenda L, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lima LM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Munhoz MG, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Oliveira RAN, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Plyku D, Poljak N, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandacz A, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, deSouza UG, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Suaide AAP, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szanto de Toledo A, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Dielectron mass spectra from Au+Au collisions at √[s(NN)]=200 GeV. PHYSICAL REVIEW LETTERS 2014; 113:022301. [PMID: 25062167 DOI: 10.1103/physrevlett.113.022301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Indexed: 06/03/2023]
Abstract
We report the STAR measurements of dielectron (e(+)e(-)) production at midrapidity (|y(ee)|<1) in Au+Au collisions at √[s(NN)]=200 GeV. The measurements are evaluated in different invariant mass regions with a focus on 0.30-0.76 (ρ-like), 0.76-0.80 (ω-like), and 0.98-1.05 (ϕ-like) GeV/c(2). The spectrum in the ω-like and ϕ-like regions can be well described by the hadronic cocktail simulation. In the ρ-like region, however, the vacuum ρ spectral function cannot describe the shape of the dielectron excess. In this range, an enhancement of 1.77±0.11(stat)±0.24(syst)±0.33(cocktail) is determined with respect to the hadronic cocktail simulation that excludes the ρ meson. The excess yield in the ρ-like region increases with the number of collision participants faster than the ω and ϕ yields. Theoretical models with broadened ρ contributions through interactions with constituents in the hot QCD medium provide a consistent description of the dilepton mass spectra for the measurement presented here and the earlier data at the Super Proton Synchrotron energies.
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Das I, Basantray I, Mamidi P, Nayak TK, B. M. P, Chattopadhyay S, Chattopadhyay S. Heat shock protein 90 positively regulates Chikungunya virus replication by stabilizing viral non-structural protein nsP2 during infection. PLoS One 2014; 9:e100531. [PMID: 24959709 PMCID: PMC4069056 DOI: 10.1371/journal.pone.0100531] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 05/25/2014] [Indexed: 02/06/2023] Open
Abstract
Background The high morbidity and socio-economic loss associated with the recent massive global outbreak of Chikungunya virus (CHIKV) emphasize the need to understand the biology of the virus for developing effective antiviral therapies. Methods and Findings In this study, an attempt was made to understand the molecular mechanism involved in Heat shock protein 90 (Hsp90) mediated regulation of CHIKV infection in mammalian cells using CHIKV prototype strain (S 27) and Indian outbreak strain of 2006 (DRDE-06). Our results showed that Hsp90 is required at a very early stage of viral replication and Hsp90 inhibitor Geldanamycin (GA) can abrogate new virus particle formation more effectively in the case of S 27 than that of DRDE-06. Further analysis revealed that CHIKV nsP2 protein level is specifically reduced by GA treatment as well as HSP90-siRNA transfection; however, viral RNA remains unaltered. Immunoprecipitation analysis showed that nsP2 interacts with Hsp90 during infection; however this interaction is reduced in the presence of GA. In addition, our analysis on Hsp90 associated PI3K/Akt/mTOR signaling pathway demonstrated that CHIKV infection stabilizes Raf1 and activates Hsp90 client protein Akt, which in turn phosphorylates mTOR. Subsequently, this phosphorylation leads to the activation of two important downstream effectors, S6K and 4EBP1, which may facilitate translation of viral as well as cellular mRNAs. Hence, the data suggests that CHIKV infection is regulated by Hsp90 associated Akt phosphorylation and DRDE-06 is more efficient than S 27 in enhancing the activation of host signaling molecules for its efficient replication and virus production. Conclusion Hsp90 positively regulates Chikungunya virus replication by stabilizing CHIKV-nsP2 through its interaction during infection. The study highlights the possible molecular mechanism of GA mediated inhibition of CHIKV replication and differential effect of this drug on S 27 and DRDE-06, which will be informative for developing effective anti-CHIKV therapies in future.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Contin G, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Eyser O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, Levine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Olvitt DL, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szelezniak MA, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu J, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Beam-energy dependence of the directed flow of protons, antiprotons, and pions in Au+Au collisions. PHYSICAL REVIEW LETTERS 2014; 112:162301. [PMID: 24815640 DOI: 10.1103/physrevlett.112.162301] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Indexed: 06/03/2023]
Abstract
Rapidity-odd directed flow (v1) measurements for charged pions, protons, and antiprotons near midrapidity (y=0) are reported in sNN=7.7, 11.5, 19.6, 27, 39, 62.4, and 200 GeV Au+Au collisions as recorded by the STAR detector at the Relativistic Heavy Ion Collider. At intermediate impact parameters, the proton and net-proton slope parameter dv1/dy|y=0 shows a minimum between 11.5 and 19.6 GeV. In addition, the net-proton dv1/dy|y=0 changes sign twice between 7.7 and 39 GeV. The proton and net-proton results qualitatively resemble predictions of a hydrodynamic model with a first-order phase transition from hadronic matter to deconfined matter, and differ from hadronic transport calculations.
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Adamczyk L, Adkins JK, Agakishiev G, Aggarwal MM, Ahammed Z, Alekseev I, Alford J, Anson CD, Aparin A, Arkhipkin D, Aschenauer EC, Averichev GS, Banerjee A, Beavis DR, Bellwied R, Bhasin A, Bhati AK, Bhattarai P, Bichsel H, Bielcik J, Bielcikova J, Bland LC, Bordyuzhin IG, Borowski W, Bouchet J, Brandin AV, Brovko SG, Bültmann S, Bunzarov I, Burton TP, Butterworth J, Caines H, Calderón de la Barca Sánchez M, Cebra D, Cendejas R, Cervantes MC, Chaloupka P, Chang Z, Chattopadhyay S, Chen HF, Chen JH, Chen L, Cheng J, Cherney M, Chikanian A, Christie W, Chwastowski J, Codrington MJM, Contin G, Cramer JG, Crawford HJ, Cui X, Das S, Davila Leyva A, De Silva LC, Debbe RR, Dedovich TG, Deng J, Derevschikov AA, Derradi de Souza R, Dhamija S, di Ruzza B, Didenko L, Dilks C, Ding F, Djawotho P, Dong X, Drachenberg JL, Draper JE, Du CM, Dunkelberger LE, Dunlop JC, Efimov LG, Engelage J, Engle KS, Eppley G, Eun L, Evdokimov O, Eyser O, Fatemi R, Fazio S, Fedorisin J, Filip P, Finch E, Fisyak Y, Flores CE, Gagliardi CA, Gangadharan DR, Garand D, Geurts F, Gibson A, Girard M, Gliske S, Greiner L, Grosnick D, Gunarathne DS, Guo Y, Gupta A, Gupta S, Guryn W, Haag B, Hamed A, Han LX, Haque R, Harris JW, Heppelmann S, Hirsch A, Hoffmann GW, Hofman DJ, Horvat S, Huang B, Huang HZ, Huang X, Huck P, Humanic TJ, Igo G, Jacobs WW, Jang H, Judd EG, Kabana S, Kalinkin D, Kang K, Kauder K, Ke HW, Keane D, Kechechyan A, Kesich A, Khan ZH, Kikola DP, Kisel I, Kisiel A, Koetke DD, Kollegger T, Konzer J, Koralt I, Kotchenda L, Kraishan AF, Kravtsov P, Krueger K, Kulakov I, Kumar L, Kycia RA, Lamont MAC, Landgraf JM, Landry KD, Lauret J, Lebedev A, Lednicky R, Lee JH, LeVine MJ, Li C, Li W, Li X, Li X, Li Y, Li ZM, Lisa MA, Liu F, Ljubicic T, Llope WJ, Lomnitz M, Longacre RS, Luo X, Ma GL, Ma YG, Madagodagettige Don DMMD, Mahapatra DP, Majka R, Margetis S, Markert C, Masui H, Matis HS, McDonald D, McShane TS, Minaev NG, Mioduszewski S, Mohanty B, Mondal MM, Morozov DA, Mustafa MK, Nandi BK, Nasim M, Nayak TK, Nelson JM, Nigmatkulov G, Nogach LV, Noh SY, Novak J, Nurushev SB, Odyniec G, Ogawa A, Oh K, Ohlson A, Okorokov V, Oldag EW, Olvitt DL, Pachr M, Page BS, Pal SK, Pan YX, Pandit Y, Panebratsev Y, Pawlak T, Pawlik B, Pei H, Perkins C, Peryt W, Pile P, Planinic M, Pluta J, Poljak N, Porter J, Poskanzer AM, Pruthi NK, Przybycien M, Pujahari PR, Putschke J, Qiu H, Quintero A, Ramachandran S, Raniwala R, Raniwala S, Ray RL, Riley CK, Ritter HG, Roberts JB, Rogachevskiy OV, Romero JL, Ross JF, Roy A, Ruan L, Rusnak J, Rusnakova O, Sahoo NR, Sahu PK, Sakrejda I, Salur S, Sandweiss J, Sangaline E, Sarkar A, Schambach J, Scharenberg RP, Schmah AM, Schmidke WB, Schmitz N, Seger J, Seyboth P, Shah N, Shahaliev E, Shanmuganathan PV, Shao M, Sharma B, Shen WQ, Shi SS, Shou QY, Sichtermann EP, Singaraju RN, Skoby MJ, Smirnov D, Smirnov N, Solanki D, Sorensen P, Spinka HM, Srivastava B, Stanislaus TDS, Stevens JR, Stock R, Strikhanov M, Stringfellow B, Sumbera M, Sun X, Sun XM, Sun Y, Sun Z, Surrow B, Svirida DN, Symons TJM, Szelezniak MA, Takahashi J, Tang AH, Tang Z, Tarnowsky T, Thomas JH, Timmins AR, Tlusty D, Tokarev M, Trentalange S, Tribble RE, Tribedy P, Trzeciak BA, Tsai OD, Turnau J, Ullrich T, Underwood DG, Van Buren G, van Nieuwenhuizen G, Vandenbroucke M, Vanfossen JA, Varma R, Vasconcelos GMS, Vasiliev AN, Vertesi R, Videbæk F, Viyogi YP, Vokal S, Vossen A, Wada M, Wang F, Wang G, Wang H, Wang JS, Wang XL, Wang Y, Wang Y, Webb G, Webb JC, Westfall GD, Wieman H, Wissink SW, Witt R, Wu YF, Xiao Z, Xie W, Xin K, Xu H, Xu J, Xu N, Xu QH, Xu Y, Xu Z, Yan W, Yang C, Yang Y, Yang Y, Ye Z, Yepes P, Yi L, Yip K, Yoo IK, Yu N, Zawisza Y, Zbroszczyk H, Zha W, Zhang JB, Zhang JL, Zhang S, Zhang XP, Zhang Y, Zhang ZP, Zhao F, Zhao J, Zhong C, Zhu X, Zhu YH, Zoulkarneeva Y, Zyzak M. Jet-hadron correlations in √[s(NN)]=200 GeV p+p and central Au+Au collisions. PHYSICAL REVIEW LETTERS 2014; 112:122301. [PMID: 24724645 DOI: 10.1103/physrevlett.112.122301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Indexed: 06/03/2023]
Abstract
Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au+Au and p+p collisions at √[s(NN)]=200 GeV in STAR are presented. The trigger jet population in Au+Au collisions is biased toward jets that have not interacted with the medium, allowing easier matching of jet energies between Au+Au and p+p collisions while enhancing medium effects on the recoil jet. The associated hadron yield of the recoil jet is significantly suppressed at high transverse momentum (pTassoc) and enhanced at low pTassoc in 0%-20% central Au+Au collisions compared to p+p collisions, which is indicative of medium-induced parton energy loss in ultrarelativistic heavy-ion collisions.
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