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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clarke C, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Riddick T, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rosner JL, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, Denis RS, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Measurement of polarization and search for CP violation in B(s)0→φφ decays. PHYSICAL REVIEW LETTERS 2011; 107:261802. [PMID: 22243151 DOI: 10.1103/physrevlett.107.261802] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Indexed: 05/31/2023]
Abstract
We present the first measurement of polarization and CP-violating asymmetries in a B(s)(0) decay into two light vector mesons, B(s)(0)→φφ, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to 2.9 fb(-1) of integrated luminosity collected by the CDF experiment at the Fermilab Tevatron collider. The fraction of longitudinal polarization is determined to be f(L)=0.348±0.041(stat)±0.021(syst), and the branching ratio B(B(s)(0)→φφ)=[2.32±0.18(stat)±0.82(syst)]×10(-5). Asymmetries of decay angle distributions sensitive to CP violation are measured to be A(u)=-0.007±0.064(stat)±0.018(syst) and A(v)=-0.120±0.064(stat)±0.016(syst).
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blocker C, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Cabrera S, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Turini N, Ukegawa F, Uozumi S, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Search for a heavy toplike quark in pp collisions at √s=1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 107:261801. [PMID: 22243150 DOI: 10.1103/physrevlett.107.261801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 11/04/2011] [Indexed: 05/31/2023]
Abstract
We present the results of a search for pair production of a heavy toplike (t') quark decaying to Wq final states using data corresponding to an integrated luminosity of 5.6 fb(-1) collected by the CDF II detector in pp collisions at √s=1.96 TeV. We perform parallel searches for t'→Wb and t'→Wq (where q is a generic down-type quark) in events containing a lepton and four or more jets. By performing a fit to the two-dimensional distribution of total transverse energy versus reconstructed t' quark mass, we set upper limits on the t't' production cross section and exclude a standard model fourth-generation t' quark decaying to Wb (Wq) with mass below 358 (340) GeV/c(2) at 95% C.L.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clarke C, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Poprocki S, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Riddick T, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Top-quark mass measurement using events with missing transverse energy and jets at CDF. PHYSICAL REVIEW LETTERS 2011; 107:232002. [PMID: 22182082 DOI: 10.1103/physrevlett.107.232002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Indexed: 05/31/2023]
Abstract
We present a measurement of the top-quark mass using a sample of t ̄t events in 5.7 fb(-1) of integrated luminosity from p ̄p collisions at the Fermilab Tevatron with √s=1.96 TeV and collected by the CDF II Detector. We select events having large missing transverse energy, and four, five, or six jets with at least one jet tagged as coming from a b quark, and reject events with identified charged leptons. This analysis considers events from the semileptonic t ̄t decay channel, including events that contain tau leptons. The measurement is based on a multidimensional template method. We fit the data to signal templates of varying top-quark masses and background templates, and measure a top-quark mass of M(top)=172.32±2.4(stat)±1.0(syst) GeV/c(2).
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Aaltonen T, González BA, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blocker C, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Cabrera S, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Almenar CC, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Fernandez PM, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Griso SP, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Turini N, Ukegawa F, Uozumi S, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wenzel H, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Observation of the baryonic flavor-changing neutral current decay Λb(0)→Λμ+μ-. PHYSICAL REVIEW LETTERS 2011; 107:201802. [PMID: 22181723 DOI: 10.1103/physrevlett.107.201802] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Indexed: 05/31/2023]
Abstract
We report the first observation of the baryonic flavor-changing neutral current decay Λ(b)(0)→Λμ(+)μ(-) with 24 signal events and a statistical significance of 5.8 Gaussian standard deviations. This measurement uses a pp collisions data sample corresponding to 6.8 fb(-1) at √s = 1.96 TeV collected by the CDF II detector at the Tevatron collider. The total and differential branching ratios for Λ(b)(0)→Λμ(+)μ(-) are measured. We find B(Λ(b)(0)→Λμ(+)μ(-))=[1.73 ± 0.42(stat) ± (syst)] × 10(-6). We also report the first measurement of the differential branching ratio of B(s)(0)→ϕμ(+)μ(-), using 49 signal events. In addition, we report branching ratios for B(+)→K(+)μ(+)μ(-), B(0)→K(0)μ(+)μ(-), and B→K(*)(892)μ(+)μ(-) decays.
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Lee JI, Sato M, Kim HW, Mochida J, Mochida J. Transplantatation of scaffold-free spheroids composed of synovium-derived cells and chondrocytes for the treatment of cartilage defects of the knee. Eur Cell Mater 2011; 22:275-90; discussion 290. [PMID: 22071698 DOI: 10.22203/ecm.v022a21] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Autologous chondrocyte implantation (ACI) is the treatment of choice for osteoarthritis. However, to regenerate articular cartilage using this method, the procedure paradoxically demands that the cell source of the articular chondrocytes (ACs) for ex vivo expansion be from the patient's own healthy cartilage, which can result in donor site morbidity. Accordingly, it is essential to develop a substitute for AC. In the present study, we investigated whether synovium-derived cells (SYs) could be used as a partial replacement for ACs in ACI. ACs and SYs from the knees of rabbits were isolated and cultured, and the growth rates of the cells were compared. To manufacture the cellular transplants, we developed a high-density suspension-shaking culture method (HDSS), which circulates the cells in culture media, promoting self-assembly of scaffold-free cellular aggregates. ACs and SYs were mixed in various ratios using HDSS. Injectable cellular transplants were harvested and transplanted into full-thickness osteochondral defects. Simultaneously, histological evaluations were conducted with toluidine blue and safranin O, and immunohistochemistry of collagen type I and II was conducted. Gene expression to evaluate chondrocyte-specific differentiation was also performed. We successfully prepared a large quantity of spheroids (spheroidal cell aggregates) in a short time using mixed ACs and SYs, for all cellular composition ratios. Our data showed that the minimal therapeutic unit for the transplants contributed to in situ regeneration of cartilage. In summary, SYs can be used as a replacement for ACs in clinical cases of ACI in patients with broad areas of osteoarthritic lesions.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Bentivegna M, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lecompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Rao K, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Search for New T' particles in final states with large jet multiplicities and missing transverse energy in p p collisions at sqrt[s] = 1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 107:191803. [PMID: 22181598 DOI: 10.1103/physrevlett.107.191803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Indexed: 05/31/2023]
Abstract
We present a search for a new particle T' decaying to a top quark via T' → t + X, where X goes undetected. We use a data sample corresponding to 5.7 fb(-1) of integrated luminosity of p p collisions with sqrt[s] = 1.96 TeV, collected at Fermilab Tevatron by the CDF II detector. Our search for pair production of T' is focused on the hadronic decay channel, pp → T'T' → tt + XX → bqq b qq + XX. We interpret our results in terms of a model where T' is an exotic fourth generation quark and X is a dark matter particle. The data are consistent with standard model expectations. We set a limit on the generic production of T'T' → tt + XX, excluding the fourth generation exotic quarks T' at 95% confidence level up to m(T') = 400 GeV/c(2) for m(X) ≤ 70 GeV/c(2).
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clarke C, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lecompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Riddick T, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Sperka D, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Search for B(s)(0) → μ+ μ- and B(0) → μ+ μ- decays with CDF II. PHYSICAL REVIEW LETTERS 2011; 107:191801. [PMID: 22181596 DOI: 10.1103/physrevlett.107.191801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2011] [Indexed: 05/31/2023]
Abstract
A search has been performed for B(s)(0) → μ+ μ- and B(0) → μ+ μ- decays using 7 fb(-1) of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron collider. The observed number of B(0) candidates is consistent with background-only expectations and yields an upper limit on the branching fraction of B(B(0) → μ+ μ-) < 6.0 × 10(-9) at 95% confidence level. We observe an excess of B(s)(0) candidates. The probability that the background processes alone could produce such an excess or larger is 0.27%. The probability that the combination of background and the expected standard model rate of B(s)(0) → μ+ μ- could produce such an excess or larger is 1.9%. These data are used to determine B(B(s)(0)→ μ+ μ-) = (1.8(-0.9) (+1.1)) × 10(-8) and provide an upper limit of B(B(s)(0) → μ+ μ-) < 4.0 × 10(-8) at 95% confidence level.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clarke C, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Kittiwisit P, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lecompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Porter R, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Riddick T, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Search for new physics in high pT like-sign dilepton events at CDF II. PHYSICAL REVIEW LETTERS 2011; 107:181801. [PMID: 22107622 DOI: 10.1103/physrevlett.107.181801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2011] [Indexed: 05/31/2023]
Abstract
We present a search for new physics in events with two high pT leptons of the same electric charge, using data with an integrated luminosity of 6.1 fb(-1). The observed data are consistent with standard model predictions. We set 95% C.L. lower limits on the mass of doubly charged scalars decaying to like-sign dileptons, m(H±±) > 190-245 GeV/c(2), assuming 100% BR to ee, μμ or eμ.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Pranko A, Prokoshin F, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Sgalaberna D, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Measurement of the cross section for prompt isolated diphoton production in pp collisions at square root(s) = 1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 107:102003. [PMID: 21981495 DOI: 10.1103/physrevlett.107.102003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Indexed: 05/31/2023]
Abstract
This Letter reports a measurement of the cross section of prompt isolated photon pair production in pp collisions at a total energy square root(s)=1.96 TeV using data of 5.36 fb(-1) integrated luminosity collected with the CDF II detector at the Fermilab Tevatron. The measured cross section, differential in basic kinematic variables, is compared with three perturbative QCD predictions, a leading order parton shower calculation and two next-to-leading order calculations. The next-to-leading order calculations reproduce most aspects of the data. By including photon radiation from quarks before and after hard scattering, the parton shower prediction becomes competitive with the next-to-leading order predictions.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clarke C, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Riddick T, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Observation of the Ξ(b)(0) baryon. PHYSICAL REVIEW LETTERS 2011; 107:102001. [PMID: 21981493 DOI: 10.1103/physrevlett.107.102001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Indexed: 05/31/2023]
Abstract
The observation of the bottom, strange baryon Ξ(b)(0) through the decay chain Ξ(b)(0)→Ξ(c)(+)π-, where ΞΞ(c)(+)→Ξ- π+ π+, Ξ-→Λπ-, and Λ→pπ-, is reported by using data corresponding to an integrated luminosity of 4.2 fb(-1) from pp collisions at square root(s)=1.96 TeV recorded with the Collider Detector at Fermilab. A signal of 25.3(-5.4)(+5.6) candidates is observed whose probability of arising from a background fluctuation is 3.6×10(-12), corresponding to 6.8 gaussian standard deviations. The Ξ(b)(0) mass is measured to be 5787.8±5.0(stat)±1.3(syst) MeV/c2. In addition, the Ξ(b)- baryon is observed through the process Ξ(b)-→Ξ(c)(0)π-, where Ξ(c)(0)→Ξ- π+, Ξ-→Λπ-, and Λ→pπ-.
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Aaltonen T, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Search for new dielectron resonances and Randall-Sundrum gravitons at the collider detector at Fermilab. PHYSICAL REVIEW LETTERS 2011; 107:051801. [PMID: 21867060 DOI: 10.1103/physrevlett.107.051801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Indexed: 05/31/2023]
Abstract
A search for new dielectron-mass resonances using data recorded by the CDF II detector and corresponding to an integrated luminosity of 5.7 fb(-1) is presented. No significant excess over the expected standard model prediction is observed. In this data set, an event with the highest dielectron mass ever observed (960 GeV/c(2)) was recorded. The results are interpreted in the Randall-Sundrum (RS) model. Combined with the 5.4 fb(-1) diphoton analysis, the RS-graviton lower-mass limit for the coupling k/M¯(Pl)=0.1 is 1058 GeV/c(2), making it the strongest limit to date.
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Aaltonen T, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Limits on anomalous trilinear gauge couplings in Zγ events from pp¯ collisions at √s=1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 107:051802. [PMID: 21867061 DOI: 10.1103/physrevlett.107.051802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Indexed: 05/31/2023]
Abstract
Using Zγ candidate events collected by the CDF detector at the Tevatron Collider, we search for potential anomalous (non-standard-model) couplings between the Z boson and the photon. Zγ couplings vanish at tree level and are heavily suppressed at higher orders; hence any evidence of couplings indicates new physics. Measurements are performed using data corresponding to an integrated luminosity of 4.9 fb(-1) in the Z→νν¯ decay channel and 5.1 fb(-1) in the Z→l(+)l(-) (l=μ, e) decay channels. The combination of these measurements provides the most stringent limits to date on Zγ trilinear gauge couplings. Using an energy scale of Λ=1.5 TeV to allow for a direct comparison with previous measurements, we find limits on the CP-conserving parameters that describe Zγ couplings to be |h(3)(γ,Z)|<0.022 and |h(4)(γ,Z)|<0.0009. These results are consistent with standard model predictions.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, Jain G, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lou HK, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seitz C, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thomas S, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. First search for multijet resonances in sqrt(s) = 1.96 TeV pp collisions. PHYSICAL REVIEW LETTERS 2011; 107:042001. [PMID: 21866996 DOI: 10.1103/physrevlett.107.042001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Indexed: 05/31/2023]
Abstract
We present the first model independent search for three-jet hadronic resonances within multijet events in sqrt(s) = 1.96 TeV pp collisions at the Fermilab Tevatron using the CDF II detector. Pair production of supersymmetric gluinos and squarks with hadronic R-parity violating decays is employed as an example of a new physics benchmark for this signature. Selection criteria based on the kinematic properties of an ensemble of jet combinations within each event help to extract signal from copious QCD background. No significant excess outside the top quark mass window is observed in data with an integrated luminosity of 3.2 fb(-1). We place 95% confidence level limits on the production cross section σ(pp → XX')×BR(gg → 3 jet + 3 jet) where X, X' = g, q, or q, with q, q → g + jet, as a function of gluino mass, in the range of 77 GeV/c2 to 240 GeV/c2.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blocker C, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Cabrera S, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Turini N, Ukegawa F, Uozumi S, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Search for a very light CP-odd Higgs boson in top quark decays from pp collisions at sqrt(s)]=1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 107:031801. [PMID: 21838348 DOI: 10.1103/physrevlett.107.031801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Indexed: 05/31/2023]
Abstract
We present the results of a search for a very light CP-odd Higgs boson a(1)(0) originating from top quark decays t → H(±)b → W(±(*)) a(1)(0)b, and subsequently decaying into τ+ τ-. Using a data sample corresponding to an integrated luminosity of 2.7 fb(-1) collected by the CDF II detector in pp collisions at 1.96 TeV, we perform a search for events containing a lepton, three or more jets, and an additional isolated track with transverse momentum in the range 3 to 20 GeV/c. Observed events are consistent with background sources, and 95% C.L. limits are set on the branching ratio of t → H(±)b for various masses of H(±) and a(1)(0).
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Aaltonen T, González BA, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Almenar CC, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, da Costa JG, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Griso SP, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, Denis RS, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. First measurement of the angular coefficients of Drell-Yan e(+)e(-) pairs in the Z mass region from pp¯ collisions at √s=1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 106:241801. [PMID: 21770565 DOI: 10.1103/physrevlett.106.241801] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Indexed: 05/31/2023]
Abstract
We report on the first measurement of the angular distributions of final state electrons in pp¯ → γ*/Z → e(+)e(-) + X events produced in the Z boson mass region at √s1.96 TeV. The data sample collected by the CDF II detector for this result corresponds to 2.1 fb(-1) of integrated luminosity. The angular distributions are studied as a function of the transverse momentum of the electron-positron pair and show good agreement with the Lam-Tung relation, consistent with a spin-1 description of the gluon, and demonstrate that, at high values of the transverse momentum, Z bosons are produced via quark-antiquark annihilation and quark-gluon Compton processes.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Rao K, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Search for production of heavy particles decaying to top quarks and invisible particles in pp collisions at √s = 1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 106:191801. [PMID: 21668142 DOI: 10.1103/physrevlett.106.191801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2011] [Indexed: 05/30/2023]
Abstract
We present a search for a new particle T' decaying to top quark via T' → t + X, where X is an invisible particle. In a data sample with 4.8 fb(-1) of integrated luminosity collected by the CDF II detector at Fermilab in pp collisions with √s = 1.96 TeV, we search for pair production of T' in the lepton + jets channel, pp → tt + X + X → ℓνbqq'b + X + X. We interpret our results primarily in terms of a model where T' are exotic fourth generation quarks and X are dark matter particles. Current direct and indirect bounds on such exotic quarks restrict their masses to be between 300 and 600 GeV/c2, the dark matter particle mass being anywhere below m(T'). The data are consistent with standard model expectations, and we set 95% confidence level limits on the generic production of T'T' → tt + X + X. For the dark matter model we exclude T' at 95% confidence level up to m(T') = 360 GeV/c2 for m(X) ≤ 100 GeV/c2.
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Aaltonen T, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Measurements of direct CP violating asymmetries in charmless decays of strange bottom mesons and bottom baryons. PHYSICAL REVIEW LETTERS 2011; 106:181802. [PMID: 21635084 DOI: 10.1103/physrevlett.106.181802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2011] [Indexed: 05/30/2023]
Abstract
We report measurements of direct CP-violating asymmetries in charmless decays of neutral bottom hadrons to pairs of charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using a data sample corresponding to 1 fb(-1) of integrated luminosity, we obtain the first measurements of direct CP violation in bottom strange mesons, A(CP)(B(s)(0)→K(-)π(+))=+0.39±0.15(stat)±0.08(syst), and bottom baryons, A(CP)(Λ(b)(0)→pπ(-))=+0.03±0.17(stat)±0.05(syst) and A(CP)(Λ(b)(0)→pK(-))=+0.37±0.17(stat)±0.03(syst). In addition, we measure CP violation in B(0)→K(+)π(-) decays with 3.5σ significance, A(CP)(B(0)→K(+)π(-))=-0.086±0.023(stat)±0.009(syst), in agreement with the current world average. Measurements of branching fractions of B(s)(0)→K(+)K(-) and B(0)→π(+)π(-) decays are also updated.
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Shim YS, Pae CU, Kim SW, Kim HW, Kim JC, Koh JS. Effects of repeated dosing with Udenafil (Zydena) on cognition, somatization and erection in patients with erectile dysfunction: a pilot study. Int J Impot Res 2011; 23:109-14. [PMID: 21544084 DOI: 10.1038/ijir.2011.13] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The PDE5 inhibitors have recently been found to have cognitive-enhancing effects in animal models. To investigate the efficacy of repeated dosing with a PDE5 inhibitor on cognitive function and somatization in patients with erectile dysfunction, 27 patients with erectile dysfunction received udenafil (100 mg) at 3-day intervals for 2 months. The international index of erectile function-5 (IIEF-5), a cognitive battery (the Korean version of mini-mental state examination (K-MMSE), the frontal assessment battery (K-FAB), the Seoul verbal learning test) and a physical health questionnaire-15 (PHQ-15) were performed at baseline and at 2 months, following the administration of udenafil. The patients were divided on the basis of their IIEF-5 score into responders (change>7) and non-responders. The mean IIEF-5 score was significantly increased after treatment (7.92 ± 3.83 to 16.33 ± 4.75, P<0.001). The scores of K-MMSE (27.03 ± 1.58 to 28.07 ± 1.57, P=0.001), K-FAB (13.65 ± 1.96 to 15.41 ± 1.85, P<0.001) and PHQ-15 (18.92 ± 4.96 to 17.63 ± 4.75, P=0.003) were significantly improved after treatment. In addition, the responders (n=16) had more improved cognitive function (r=0.603, P=0.001) and somatization (r=-0.402, P=0.038) than non-responders (n=11). Repeated dosing with a PDE5 inhibitor seems to improve cognitive function and somatization, as well as erectile function in patients with erectile dysfunction.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clarke C, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kasmi A, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Limosani A, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Rescigno M, Rimondi F, Ristori L, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Invariant mass distribution of jet pairs produced in association with a W boson in pp collisions at sqrt[s]=1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 106:171801. [PMID: 21635027 DOI: 10.1103/physrevlett.106.171801] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2011] [Indexed: 05/30/2023]
Abstract
We report a study of the invariant mass distribution of jet pairs produced in association with a W boson using data collected with the CDF detector which correspond to an integrated luminosity of 4.3 fb(-1). The observed distribution has an excess in the 120-160 GeV/c(2) mass range which is not described by current theoretical predictions within the statistical and systematic uncertainties. In this Letter, we report studies of the properties of this excess.
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Aaltonen T, González BA, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blocker C, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Cabrera S, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Almenar CC, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, da Costa JG, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Fernandez PM, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Griso SP, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Turini N, Ukegawa F, Uozumi S, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Measurement of the forward-backward asymmetry in the B→K*μ(+)μ(-) decay and first observation of the B(s)0→ϕμ(+)μ(-) decay. PHYSICAL REVIEW LETTERS 2011; 106:161801. [PMID: 21599355 DOI: 10.1103/physrevlett.106.161801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2011] [Indexed: 05/30/2023]
Abstract
We reconstruct the rare decays B(+)→K(+)μ(+0μ(-0, B90)→K*(892)(0)μ(+)μ(-), and B(s)(0)→ϕ(1020)μ(+)μ(-) in a data sample corresponding to 4.4 fb(-1) collected in pp collisions at √[s]=1.96 TeV by the CDF II detector at the Tevatron Collider. Using 121±16 B(+)→K(+)μ(+)μ(-) and 101±12 B(0)→K(*0)μ(+)μ(-) decays we report the branching ratios. In addition, we report the differential branching ratio and the muon forward-backward asymmetry in the B(+) and B(0) decay modes, and the K(*0) longitudinal polarization fraction in the B(0) decay mode with respect to the squared dimuon mass. These are consistent with the predictions, and most recent determinations from other experiments and of comparable accuracy. We also report the first observation of the B(s)(0)→ϕμ(+)μ(-) decay and measure its branching ratio BR(B(s)(0)→ϕμ(+)μ(-))=[1.44±0.33±0.46]×10(-6) using 27±6 signal events. This is currently the most rare B(s)(0) decay observed.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Measurement of the mass difference between t and t quarks. PHYSICAL REVIEW LETTERS 2011; 106:152001. [PMID: 21568546 DOI: 10.1103/physrevlett.106.152001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Indexed: 05/30/2023]
Abstract
We present a direct measurement of the mass difference between t and t quarks using tt candidate events in the lepton+jets channel, collected with the CDF II detector at Fermilab's 1.96 TeV Tevatron pp Collider. We make an event by event estimate of the mass difference to construct templates for top quark pair signal events and background events. The resulting mass difference distribution of data is compared to templates of signals and background using a maximum likelihood fit. From a sample corresponding to an integrated luminosity of 5.6 fb(-1), we measure a mass difference, ΔM(top) = M(t) - M(t) = -3.3 ± 1.4(stat) ± 1.0(syst) GeV/c2, approximately 2 standard deviations away from the CPT hypothesis of zero mass difference.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Search for heavy bottomlike quarks decaying to an electron or muon and jets in pp collisions at √s = 1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 106:141803. [PMID: 21561183 DOI: 10.1103/physrevlett.106.141803] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2011] [Indexed: 05/30/2023]
Abstract
We report the most sensitive direct search for pair production of fourth-generation bottomlike chiral quarks (b') each decaying promptly to tW. We search for an excess of events with an electron or muon, at least five jets (one identified as due to a b or c quark), and an imbalance of transverse momentum by using data from pp collisions collected by the CDF II detector at Fermilab with an integrated luminosity of 4.8 fb(-1). We observe events consistent with background expectation, calculate upper limits on the b' pair-production cross section (σ(bb')) ≲30 fb for m(b') > 375 GeV/c2), and exclude m(b') < 372 GeV/c2 at 95% confidence level assuming a 100% branching ratio of b' to tW.
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Aaltonen T, Álvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blocker C, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Cabrera S, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Clark D, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Korytov A, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Labarga L, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malde S, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Turini N, Ukegawa F, Uozumi S, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wenzel H, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Measurement of b hadron lifetimes in exclusive decays containing a J/ψ in pp collisions at √s=1.96 TeV. PHYSICAL REVIEW LETTERS 2011; 106:121804. [PMID: 21517302 DOI: 10.1103/physrevlett.106.121804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Indexed: 05/30/2023]
Abstract
We report on a measurement of b-hadron lifetimes in the fully reconstructed decay modes B(+)→J/ψK(+), B⁰→J/ψK*(892)⁰, B⁰→J/ψK(s)⁰, and Λ(b)⁰→J/ψΛ⁰ using data corresponding to an integrated luminosity of 4.3 fb⁻¹, collected by the CDF II detector at the Fermilab Tevatron. The measured lifetimes are τ(B(+))=[1.639±0.009(stat)±0.009(syst)] ps, τ(B⁰)=[1.507±0.010(stat)±0.008(syst)] ps, and τ(Λ(b)⁰)=[1.537±0.045(stat)±0.014(syst)] ps. The lifetime ratios are τ(B(+))/τ(B⁰)=[1.088±0.009(stat)±0.004(syst)] and τ(Λ(b)⁰)/τ(B⁰)=[1.020±0.030(stat)±0.008(syst)]. These are the most precise determinations of these quantities from a single experiment.
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Aaltonen T, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Appel JA, Apresyan A, Arisawa T, Artikov A, Asaadi J, Ashmanskas W, Auerbach B, Aurisano A, Azfar F, Badgett W, Barbaro-Galtieri A, Barnes VE, Barnett BA, Barria P, Bartos P, Bauce M, Bauer G, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Bhatti A, Binkley M, Bisello D, Bizjak I, Bland KR, Blumenfeld B, Bocci A, Bodek A, Bortoletto D, Boudreau J, Boveia A, Brau B, Brigliadori L, Brisuda A, Bromberg C, Brucken E, Bucciantonio M, Budagov J, Budd HS, Budd S, Burkett K, Busetto G, Bussey P, Buzatu A, Calancha C, Camarda S, Campanelli M, Campbell M, Canelli F, Canepa A, Carls B, Carlsmith D, Carosi R, Carrillo S, Carron S, Casal B, Casarsa M, Castro A, Catastini P, Cauz D, Cavaliere V, Cavalli-Sforza M, Cerri A, Cerrito L, Chen YC, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou JP, Chung WH, Chung YS, Ciobanu CI, Ciocci MA, Clark A, Compostella G, Convery ME, Conway J, Corbo M, Cordelli M, Cox CA, Cox DJ, Cranmer K, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Dagenhart D, d'Ascenzo N, Datta M, de Barbaro P, De Cecco S, De Lorenzo G, Dell'Orso M, Deluca C, Demortier L, Deng J, Deninno M, Devoto F, d'Errico M, Di Canto A, Di Ruzza B, Dittmann JR, D'Onofrio M, Donati S, Dong P, Dorigo M, Dorigo T, Ebina K, Elagin A, Eppig A, Erbacher R, Errede D, Errede S, Ershaidat N, Eusebi R, Fang HC, Farrington S, Feindt M, Fernandez JP, Ferrazza C, Field R, Flanagan G, Forrest R, Frank MJ, Franklin M, Freeman JC, Funakoshi Y, Furic I, Gallinaro M, Galyardt J, Garcia JE, Garfinkel AF, Garosi P, Gerberich H, Gerchtein E, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Ginsburg CM, Giokaris N, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldin D, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw AT, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Group RC, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn SR, Halkiadakis E, Hamaguchi A, Han JY, Happacher F, Hara K, Hare D, Hare M, Harr RF, Hatakeyama K, Hays C, Heck M, Heinrich J, Herndon M, Hewamanage S, Hidas D, Hocker A, Hopkins W, Horn D, Hou S, Hughes RE, Hurwitz M, Husemann U, Hussain N, Hussein M, Huston J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon EJ, Jha MK, Jindariani S, Johnson W, Jones M, Joo KK, Jun SY, Junk TR, Kamon T, Karchin PE, Kato Y, Ketchum W, Keung J, Khotilovich V, Kilminster B, Kim DH, Kim HS, Kim HW, Kim JE, Kim MJ, Kim SB, Kim SH, Kim YK, Kimura N, Kirby M, Klimenko S, Kondo K, Kong DJ, Konigsberg J, Kotwal AV, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kuhr T, Kurata M, Kwang S, Laasanen AT, Lami S, Lammel S, Lancaster M, Lander RL, Lannon K, Lath A, Latino G, Lazzizzera I, LeCompte T, Lee E, Lee HS, Lee JS, Lee SW, Leo S, Leone S, Lewis JD, Lin CJ, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev DO, Liu C, Liu Q, Liu T, Lockwitz S, Lockyer NS, Loginov A, Lucchesi D, Lueck J, Lujan P, Lukens P, Lungu G, Lys J, Lysak R, Madrak R, Maeshima K, Makhoul K, Maksimovic P, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Martínez M, Martínez-Ballarín R, Mastrandrea P, Mathis M, Mattson ME, Mazzanti P, McFarland KS, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Mesropian C, Miao T, Mietlicki D, Mitra A, Miyake H, Moed S, Moggi N, Mondragon MN, Moon CS, Moore R, Morello MJ, Morlock J, Movilla Fernandez P, Mukherjee A, Muller T, Murat P, Mussini M, Nachtman J, Nagai Y, Naganoma J, Nakano I, Napier A, Nett J, Neu C, Neubauer MS, Nielsen J, Nodulman L, Norniella O, Nurse E, Oakes L, Oh SH, Oh YD, Oksuzian I, Okusawa T, Orava R, Ortolan L, Pagan Griso S, Pagliarone C, Palencia E, Papadimitriou V, Paramonov AA, Patrick J, Pauletta G, Paulini M, Paus C, Pellett DE, Penzo A, Phillips TJ, Piacentino G, Pianori E, Pilot J, Pitts K, Plager C, Pondrom L, Potamianos K, Poukhov O, Prokoshin F, Pronko A, Ptohos F, Pueschel E, Punzi G, Pursley J, Quinlan E, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Rescigno M, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rubbo F, Ruffini F, Ruiz A, Russ J, Rusu V, Safonov A, Sakumoto WK, Sakurai Y, Santi L, Sartori L, Sato K, Saveliev V, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt EE, Schmidt MP, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sforza F, Sfyrla A, Shalhout SZ, Shears T, Shepard PF, Shimojima M, Shiraishi S, Shochet M, Shreyber I, Simonenko A, Sinervo P, Sissakian A, Sliwa K, Smith JR, Snider FD, Soha A, Somalwar S, Sorin V, Squillacioti P, Stancari M, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker GL, Sudo Y, Sukhanov A, Suslov I, Takemasa K, Takeuchi Y, Tang J, Tecchio M, Teng PK, Thom J, Thome J, Thompson GA, Thomson E, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Trovato M, Tu Y, Ukegawa F, Uozumi S, Varganov A, Vázquez F, Velev G, Vellidis C, Vidal M, Vila I, Vilar R, Vizán J, Vogel M, Volpi G, Wagner P, Wagner RL, Wakisaka T, Wallny R, Wang SM, Warburton A, Waters D, Weinberger M, Wester WC, Whitehouse B, Whiteson D, Wicklund AB, Wicklund E, Wilbur S, Wick F, Williams HH, Wilson JS, Wilson P, Winer BL, Wittich P, Wolbers S, Wolfe H, Wright T, Wu X, Wu Z, Yamamoto K, Yamaoka J, Yang T, Yang UK, Yang YC, Yao WM, Yeh GP, Yi K, Yoh J, Yorita K, Yoshida T, Yu GB, Yu I, Yu SS, Yun JC, Zanetti A, Zeng Y, Zucchelli S. Search for high mass resonances decaying to muon pairs in √s=1.96 TeV pp collisions. PHYSICAL REVIEW LETTERS 2011; 106:121801. [PMID: 21517299 DOI: 10.1103/physrevlett.106.121801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Indexed: 05/30/2023]
Abstract
We present a search for a new narrow, spin-1, high mass resonance decaying to μ(+)μ⁻+X, using a matrix-element-based likelihood and a simultaneous measurement of the resonance mass and production rate. In data with 4.6 fb⁻¹ of integrated luminosity collected by the CDF detector in pp collisions at √s=1960 GeV, the most likely signal cross section is consistent with zero at 16% confidence level. We therefore do not observe evidence for a high mass resonance and place limits on models predicting spin-1 resonances, including M>1071 GeV/c² at 95% confidence level for a Z' boson with the same couplings to fermions as the Z boson.
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Cho YR, Hong BY, Lim SH, Kim HW, Ko YJ, Im SA, Lee JI. Effects of joint effusion on proprioception in patients with knee osteoarthritis: a single-blind, randomized controlled clinical trial. Osteoarthritis Cartilage 2011; 19:22-8. [PMID: 21034839 DOI: 10.1016/j.joca.2010.10.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2010] [Revised: 10/08/2010] [Accepted: 10/17/2010] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To assess the effects of joint effusion on proprioceptive status in patients with knee osteoarthritis (OA). DESIGN A single-blind, randomized, controlled clinical trial in 40 female subjects aged 50 years and over with painful knee OA. All subjects were randomly assigned to either the control or experimental group. A volume of 20 mL of normal saline was injected into the knee joint cavity of subjects in the experimental group under ultrasonographic guidance. Proprioceptive acuity was assessed by active repositioning of the lower limb using an electrogoniometer to measure knee joint position sense (JPS) under both non-weight-bearing (NWB) and weight-bearing (WB) conditions twice, with a 20-min rest interval. The experimental group performed the task twice (Test 1 and Test 2) before and within 5 min after joint infusion. The control group also performed Test 1 and Test 2 without joint infusion. The outcome of interest was the absolute angular error (AAE), ignoring the direction of the error, between the randomized target angle and the patient's reproduced angle of JPS values. RESULTS Compared with the control group, JPS was significantly compromised in the experimental group in the NWB test after joint infusion (P=0.025). However, no significant differences in the angular error were observed between Test 1 and Test 2 in the control group for the NWB or WB test or in the experimental group for the WB test after infusion (P>0.05). CONCLUSIONS This study showed that joint effusion impairs proprioceptive function in osteoarthritic knee joints.
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