John J, Sulak L, Alimena J, Bhattacharya S, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Swanson J, Breedon R, Breto G, Calderon De La Barca Sanchez M, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Ko W, Kopecky A, Lander R, Miceli T, Mulhearn M, Pellett D, Pilot J, Ricci-Tam F, Rutherford B, Searle M, Shalhout S, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Andreev V, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Takasugi E, Valuev V, Weber M, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Jandir P, Lacroix F, Liu H, Long OR, Luthra A, Malberti M, Nguyen H, Shrinivas A, Sturdy J, Sumowidagdo S, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, D’Agnolo RT, Evans D, Holzner A, Kelley R, Kovalskyi D, Lebourgeois M, Letts J, Macneill I, Padhi S, Palmer C, Pieri M, Sani M, Sharma V, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Bradmiller-Feld J, Campagnari C, Danielson T, Dishaw A, Flowers K, Franco Sevilla M, Geffert P, George C, Golf F, Incandela J, Justus C, Magaña Villalba R, Mccoll N, Pavlunin V, Richman J, Rossin R, Stuart D, To W, West C, Apresyan A, Bornheim A, Bunn J, Chen Y, Di Marco E, Duarte J, Kcira D, Mott A, Newman HB, Pena C, Rogan C, Spiropulu M, Timciuc V, Wilkinson R, Xie S, Zhu RY, Azzolini V, Calamba A, Carroll R, Ferguson T, Iiyama Y, Jang DW, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Drell BR, Ford WT, Gaz A, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Alexander J, Chatterjee A, Chu J, Eggert N, Gibbons LK, Hopkins W, Khukhunaishvili A, Kreis B, Mirman N, Nicolas Kaufman G, Patterson JR, Ryd A, Salvati E, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Burkett K, Butler JN, Chetluru V, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gao Y, Gottschalk E, Gray L, Green D, Grünendahl S, Gutsche O, Hare D, Harris RM, Hirschauer J, Hooberman B, Jindariani S, Johnson M, Joshi U, Kaadze K, Klima B, Kwan S, Linacre J, Lincoln D, Lipton R, Liu T, Lykken J, Maeshima K, Marraffino JM, Martinez Outschoorn VI, Maruyama S, Mason D, McBride P, Mishra K, Mrenna S, Musienko Y, Nahn S, Newman-Holmes C, O’Dell V, Prokofyev O, Ratnikova N, Sexton-Kennedy E, Sharma S, Soha A, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitbeck A, Whitmore J, Wu W, Yang F, Yun JC, Acosta D, Avery P, Bourilkov D, Cheng T, Das S, De Gruttola M, Di Giovanni GP, Dobur D, Field RD, Fisher M, Fu Y, Furic IK, Hugon J, Kim B, Konigsberg J, Korytov A, Kropivnitskaya A, Kypreos T, Low JF, Matchev K, Milenovic P, Mitselmakher G, Muniz L, Rinkevicius A, Shchutska L, Skhirtladze N, Snowball M, Yelton J, Zakaria M, Gaultney V, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams T, Askew A, Bochenek J, Chen J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Dorney B, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Bazterra VE, Betts RR, Bucinskaite I, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Khalatyan S, Kurt P, Moon DH, O’Brien C, Silkworth C, Turner P, Varelas N, Akgun U, Albayrak EA, Bilki B, Clarida W, Dilsiz K, Duru F, Haytmyradov M, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Penzo A, Rahmat R, Sen S, Tan P, Tiras E, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bolognesi S, Fehling D, Gritsan AV, Maksimovic P, Martin C, Swartz M, Baringer P, Bean A, Benelli G, Gray J, Kenny RP, Murray M, Noonan D, Sanders S, Sekaric J, Stringer R, Wang Q, Wood JS, Barfuss AF, Chakaberia I, Ivanov A, Khalil S, Makouski M, Maravin Y, Saini LK, Shrestha S, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Baden A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Kellogg RG, Kolberg T, Lu Y, Marionneau M, Mignerey AC, Pedro K, Skuja A, Temple J, Tonjes MB, Tonwar SC, Apyan A, Barbieri R, Bauer G, Busza W, Cali IA, Chan M, Di Matteo L, Dutta V, Gomez Ceballos G, Goncharov M, Gulhan D, Klute M, Lai YS, Lee YJ, Levin A, Luckey PD, Ma T, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Stöckli F, Sumorok K, Velicanu D, Veverka J, Wyslouch B, Yang M, Yoon AS, Zanetti M, Zhukova V, Dahmes B, De Benedetti A, Gude A, Kao SC, Klapoetke K, Kubota Y, Mans J, Pastika N, Rusack R, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Cremaldi LM, Kroeger R, Oliveros S, Perera L, Sanders DA, Summers D, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Gonzalez Suarez R, Keller J, Knowlton D, Kravchenko I, Lazo-Flores J, Malik S, Meier F, Snow GR, Dolen J, Godshalk A, Iashvili I, Jain S, Kharchilava A, Kumar A, Rappoccio S, Alverson G, Barberis E, Baumgartel D, Chasco M, Haley J, Massironi A, Nash D, Orimoto T, Trocino D, Wood D, Zhang J, Anastassov A, Hahn KA, Kubik A, Lusito L, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Velasco M, Won S, Berry D, Brinkerhoff A, Chan KM, Drozdetskiy A, Hildreth M, Jessop C, Karmgard DJ, Kellams N, Kolb J, Lannon K, Luo W, Lynch S, Marinelli N, Morse DM, Pearson T, Planer M, Ruchti R, Slaunwhite J, Valls N, Wayne M, Wolf M, Woodard A, Antonelli L, Bylsma B, Durkin LS, Flowers S, Hill C, Hughes R, Kotov K, Ling TY, Puigh D, Rodenburg M, Smith G, Vuosalo C, Winer BL, Wolfe H, Wulsin HW, Berry E, Elmer P, Halyo V, Hebda P, Hunt A, Jindal P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Raval A, Saka H, Stickland D, Tully C, Werner JS, Zenz SC, Zuranski A, Brownson E, Lopez A, Mendez H, Ramirez Vargas JE, Alagoz E, Benedetti D, Bolla G, Bortoletto D, De Mattia M, Everett A, Hu Z, Jha MK, Jones M, Jung K, Kress M, Leonardo N, Lopes Pegna D, Maroussov V, Merkel P, Miller DH, Neumeister N, Radburn-Smith BC, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Yoo HD, Zablocki J, Zheng Y, Parashar N, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, Covarelli R, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Miner DC, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Ciesielski R, Demortier L, Goulianos K, Lungu G, Malik S, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Lath A, Panwalkar S, Park M, Patel R, Rekovic V, Robles J, Salur S, Schnetzer S, Seitz C, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Rose K, Spanier S, Yang ZC, York A, Bouhali O, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Krutelyov V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Rose A, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Faulkner J, Kovitanggoon K, Kunori S, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Mao Y, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Li H, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Duric S, Friis E, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Klukas J, Lanaro A, Lazaridis C, Levine A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Woods N. Measurement of jet multiplicity distributions in [Formula: see text] production in pp collisions at [Formula: see text]

The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7[Formula: see text] at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data corresponding to an integrated luminosity of 5.0[Formula: see text]. Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the [Formula: see text] production is determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed.

John J, Sulak L, Alimena J, Bhattacharya S, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Swanson J, Breedon R, Breto G, Calderon De La Barca Sanchez M, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Ko W, Kopecky A, Lander R, Miceli T, Mulhearn M, Pellett D, Pilot J, Ricci-Tam F, Rutherford B, Searle M, Shalhout S, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Andreev V, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Takasugi E, Valuev V, Weber M, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Jandir P, Lacroix F, Liu H, Long OR, Luthra A, Malberti M, Nguyen H, Shrinivas A, Sturdy J, Sumowidagdo S, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, D’Agnolo RT, Evans D, Holzner A, Kelley R, Kovalskyi D, Lebourgeois M, Letts J, Macneill I, Padhi S, Palmer C, Pieri M, Sani M, Sharma V, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Bradmiller-Feld J, Campagnari C, Danielson T, Dishaw A, Flowers K, Franco Sevilla M, Geffert P, George C, Golf F, Incandela J, Justus C, Magaña Villalba R, Mccoll N, Pavlunin V, Richman J, Rossin R, Stuart D, To W, West C, Apresyan A, Bornheim A, Bunn J, Chen Y, Di Marco E, Duarte J, Kcira D, Mott A, Newman HB, Pena C, Rogan C, Spiropulu M, Timciuc V, Wilkinson R, Xie S, Zhu RY, Azzolini V, Calamba A, Carroll R, Ferguson T, Iiyama Y, Jang DW, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Drell BR, Ford WT, Gaz A, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Alexander J, Chatterjee A, Chu J, Eggert N, Gibbons LK, Hopkins W, Khukhunaishvili A, Kreis B, Mirman N, Nicolas Kaufman G, Patterson JR, Ryd A, Salvati E, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Burkett K, Butler JN, Chetluru V, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gao Y, Gottschalk E, Gray L, Green D, Grünendahl S, Gutsche O, Hanlon J, Hare D, Harris RM, Hirschauer J, Hooberman B, Jindariani S, Johnson M, Joshi U, Kaadze K, Klima B, Kwan S, Linacre J, Lincoln D, Lipton R, Liu T, Lykken J, Maeshima K, Marraffino JM, Martinez Outschoorn VI, Maruyama S, Mason D, McBride P, Mishra K, Mrenna S, Musienko Y, Nahn S, Newman-Holmes C, O’Dell V, Prokofyev O, Ratnikova N, Sexton-Kennedy E, Sharma S, Soha A, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitbeck A, Whitmore J, Wu W, Yang F, Yun JC, Acosta D, Avery P, Bourilkov D, Cheng T, Das S, De Gruttola M, Di Giovanni GP, Dobur D, Field RD, Fisher M, Fu Y, Furic IK, Hugon J, Kim B, Konigsberg J, Korytov A, Kropivnitskaya A, Kypreos T, Low JF, Matchev K, Milenovic P, Mitselmakher G, Muniz L, Rinkevicius A, Shchutska L, Skhirtladze N, Snowball M, Yelton J, Zakaria M, Gaultney V, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams T, Askew A, Bochenek J, Chen J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Dorney B, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Bazterra VE, Betts RR, Bucinskaite I, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Khalatyan S, Kurt P, Moon DH, O’Brien C, Silkworth C, Turner P, Varelas N, Akgun U, Albayrak EA, Bilki B, Clarida W, Dilsiz K, Duru F, Haytmyradov M, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Penzo A, Rahmat R, Sen S, Tan P, Tiras E, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bolognesi S, Fehling D, Gritsan AV, Maksimovic P, Martin C, Swartz M, Baringer P, Bean A, Benelli G, Gray J, Kenny RP, Murray M, Noonan D, Sanders S, Sekaric J, Stringer R, Wang Q, Wood JS, Barfuss AF, Chakaberia I, Ivanov A, Khalil S, Makouski M, Maravin Y, Saini LK, Shrestha S, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Baden A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Kellogg RG, Kolberg T, Lu Y, Marionneau M, Mignerey AC, Pedro K, Skuja A, Temple J, Tonjes MB, Tonwar SC, Apyan A, Barbieri R, Bauer G, Busza W, Cali IA, Chan M, Di Matteo L, Dutta V, Gomez Ceballos G, Goncharov M, Gulhan D, Klute M, Lai YS, Lee YJ, Levin A, Luckey PD, Ma T, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Stöckli F, Sumorok K, Velicanu D, Veverka J, Wyslouch B, Yang M, Yoon AS, Zanetti M, Zhukova V, Dahmes B, De Benedetti A, Gude A, Kao SC, Klapoetke K, Kubota Y, Mans J, Pastika N, Rusack R, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Cremaldi LM, Kroeger R, Oliveros S, Perera L, Sanders DA, Summers D, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Gonzalez Suarez R, Keller J, Knowlton D, Kravchenko I, Lazo-Flores J, Malik S, Meier F, Snow GR, Dolen J, Godshalk A, Iashvili I, Jain S, Kharchilava A, Kumar A, Rappoccio S, Alverson G, Barberis E, Baumgartel D, Chasco M, Haley J, Massironi A, Nash D, Orimoto T, Trocino D, Wang RJ, Wood D, Zhang J, Anastassov A, Hahn KA, Kubik A, Lusito L, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Velasco M, Won S, Berry D, Brinkerhoff A, Chan KM, Drozdetskiy A, Hildreth M, Jessop C, Karmgard DJ, Kellams N, Kolb J, Lannon K, Luo W, Lynch S, Marinelli N, Morse DM, Pearson T, Planer M, Ruchti R, Slaunwhite J, Valls N, Wayne M, Wolf M, Woodard A, Antonelli L, Bylsma B, Durkin LS, Flowers S, Hill C, Hughes R, Kotov K, Ling TY, Puigh D, Rodenburg M, Smith G, Vuosalo C, Winer BL, Wolfe H, Wulsin HW, Berry E, Elmer P, Halyo V, Hebda P, Hunt A, Jindal P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Raval A, Saka H, Stickland D, Tully C, Werner JS, Zenz SC, Zuranski A, Brownson E, Lopez A, Mendez H, Ramirez Vargas JE, Alagoz E, Benedetti D, Bolla G, Bortoletto D, De Mattia M, Everett A, Hu Z, Jha MK, Jones M, Jung K, Kress M, Leonardo N, Lopes Pegna D, Maroussov V, Merkel P, Miller DH, Neumeister N, Radburn-Smith BC, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Yoo HD, Zablocki J, Zheng Y, Parashar N, Stupak J, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, Covarelli R, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Miner DC, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Ciesielski R, Demortier L, Goulianos K, Lungu G, Malik S, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Lath A, Panwalkar S, Park M, Patel R, Rekovic V, Robles J, Salur S, Schnetzer S, Seitz C, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Rose K, Spanier S, Yang ZC, York A, Bouhali O, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Krutelyov V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Rose A, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Faulkner J, Kovitanggoon K, Kunori S, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Mao Y, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Li H, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Duric S, Friis E, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Klukas J, Lanaro A, Lazaridis C, Levine A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Woods N. Search for invisible decays of Higgs bosons in the vector boson fusion and associated ZH production modes

A search for invisible decays of Higgs bosons is performed using the vector boson fusion and associated ZH production modes. In the ZH mode, the Z boson is required to decay to a pair of charged leptons or a [Formula: see text] quark pair. The searches use the 8 [Formula: see text] pp collision dataset collected by the CMS detector at the LHC, corresponding to an integrated luminosity of up to 19.7 [Formula: see text]. Certain channels include data from 7 [Formula: see text] collisions corresponding to an integrated luminosity of 4.9 [Formula: see text]. The searches are sensitive to non-standard-model invisible decays of the recently observed Higgs boson, as well as additional Higgs bosons with similar production modes and large invisible branching fractions. In all channels, the observed data are consistent with the expected standard model backgrounds. Limits are set on the production cross section times invisible branching fraction, as a function of the Higgs boson mass, for the vector boson fusion and ZH production modes. By combining all channels, and assuming standard model Higgs boson cross sections and acceptances, the observed (expected) upper limit on the invisible branching fraction at [Formula: see text] [Formula: see text] is found to be 0.58 (0.44) at 95 % confidence level. We interpret this limit in terms of a Higgs-portal model of dark matter interactions.

Effects of psoralens as anti-tumoral agents in breast cancer cells

This review examines the biological properties of coumarins, widely distributed at the highest levels in the fruit, followed by the roots, stems and leaves, by considering their beneficial effects in the prevention of some diseases and as anti-cancer agents. These compounds are well known photosensitizing drugs which have been used as pharmaceuticals for a broad number of therapeutic applications requiring cell division inhibitors. Despite this, even in the absence of ultraviolet rays they are active. The current paper mainly focuses on the effects of psoralens on human breast cancer as they are able to influence many aspects of cell behavior, such as cell growth, survival and apoptosis. In addition, analytical and pharmacological data have demonstrated that psoralens antagonize some metabolizing enzymes, affect estrogen receptor stability and counteract cell invasiveness as well as cancer drug resistance. The scientific findings summarized highlight the pleiotropic functions of phytochemical drugs, given that recently their target signals and how these are modified in the cells have been identified. The encouraging results in this field suggest that multiple modulating strategies based on coumarin drugs in combination with canonical chemotherapeutic agents or radiotherapy could be a useful approach to address the treatment of many types of cancer.

John J, Sulak L, Alimena J, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Swanson J, Breedon R, Breto G, Calderon De La Barca Sanchez M, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Ko W, Kopecky A, Lander R, Miceli T, Mulhearn M, Pellett D, Pilot J, Ricci-Tam F, Rutherford B, Searle M, Shalhout S, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Schlein P, Takasugi E, Valuev V, Weber M, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Jandir P, Lacroix F, Long OR, Luthra A, Malberti M, Nguyen H, Shrinivas A, Sturdy J, Sumowidagdo S, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, D’Agnolo RT, Evans D, Holzner A, Kelley R, Kovalskyi D, Lebourgeois M, Letts J, Macneill I, Padhi S, Palmer C, Pieri M, Sani M, Sharma V, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Bradmiller-Feld J, Campagnari C, Danielson T, Dishaw A, Flowers K, Franco Sevilla M, Geffert P, George C, Golf F, Incandela J, Justus C, Magaña Villalba R, Mccoll N, Pavlunin V, Richman J, Rossin R, Stuart D, To W, West C, Apresyan A, Bornheim A, Bunn J, Chen Y, Di Marco E, Duarte J, Kcira D, Mott A, Newman HB, Pena C, Rogan C, Spiropulu M, Timciuc V, Wilkinson R, Xie S, Zhu RY, Azzolini V, Calamba A, Carroll R, Ferguson T, Iiyama Y, Jang DW, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Drell BR, Ford WT, Gaz A, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Alexander J, Chatterjee A, Chu J, Eggert N, Gibbons LK, Hopkins W, Khukhunaishvili A, Kreis B, Mirman N, Nicolas Kaufman G, Patterson JR, Ryd A, Salvati E, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick 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Measurement of WZ and ZZ production in pp collisions at [Formula: see text] in final states with b-tagged jets

Measurements are reported of the WZ and ZZ production cross sections in proton-proton collisions at [Formula: see text][Formula: see text] in final states where one Z boson decays to b-tagged jets. The other gauge boson, either W or Z, is detected through its leptonic decay (either [Formula: see text], [Formula: see text] or [Formula: see text], [Formula: see text], or [Formula: see text]). The results are based on data corresponding to an integrated luminosity of 18.9 fb[Formula: see text] collected with the CMS detector at the Large Hadron Collider. The measured cross sections, [Formula: see text] and [Formula: see text], are consistent with next-to-leading order quantum chromodynamics calculations.

Coupling between endocytosis and sphingosine kinase 1 recruitment

Genetic studies have suggested a functional link between cholesterol/sphingolipid metabolism and endocytic membrane traffic. Here we show that perturbing the cholesterol/sphingomyelin balance in the plasma membrane results in the massive formation of clusters of narrow endocytic tubular invaginations positive for N-BAR proteins. These tubules are intensely positive for sphingosine kinase 1 (SPHK1). SPHK1 is also targeted to physiologically occurring early endocytic intermediates, and is highly enriched in nerve terminals, which are cellular compartments specialized for exo/endocytosis. Membrane recruitment of SPHK1 involves a direct, curvature-sensitive interaction with the lipid bilayer mediated by a hydrophobic patch on the enzyme's surface. The knockdown of SPHKs results in endocytic recycling defects, and a mutation that disrupts the hydrophobic patch of Caenorhabditis elegans SPHK fails to rescue the neurotransmission defects in loss-of-function mutants of this enzyme. Our studies support a role for sphingosine phosphorylation in endocytic membrane trafficking beyond the established function of sphingosine-1-phosphate in intercellular signalling.

Observation of the associated production of a single top quark and a W boson in pp collisions at sqrt[s] = 8 TeV

The first observation of the associated production of a single top quark and a W boson is presented. The analysis is based on a data set corresponding to an integrated luminosity of 12.2 fb(-1) of proton-proton collisions at sqrt[s] = 8 TeV recorded by the CMS experiment at the LHC. Events with two leptons and a jet originating from a b quark are selected. A multivariate analysis based on kinematic and topological properties is used to separate the signal from the dominant tt background. An excess consistent with the signal hypothesis is observed, with a significance which corresponds to 6.1 standard deviations above a background-only hypothesis. The measured production cross section is 23.4 ± 5.4 pb, in agreement with the standard model prediction.

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S, Johnson M, Joshi U, Kaadze K, Klima B, Kunori S, Kwan S, Linacre J, Lincoln D, Lipton R, Lykken J, Maeshima K, Marraffino JM, Outschoorn VIM, Maruyama S, Mason D, McBride P, Mishra K, Mrenna S, Musienko Y, Newman-Holmes C, O’Dell V, Prokofyev O, Ratnikova N, Sexton-Kennedy E, Sharma S, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitmore J, Wu W, Yang F, Yun JC, Acosta D, Avery P, Bourilkov D, Chen M, Cheng T, Das S, De Gruttola M, Di Giovanni GP, Dobur D, Drozdetskiy A, Field RD, Fisher M, Fu Y, Furic IK, Hugon J, Kim B, Konigsberg J, Korytov A, Kropivnitskaya A, Kypreos T, Low JF, Matchev K, Milenovic P, Mitselmakher G, Muniz L, Remington R, Rinkevicius A, Skhirtladze N, Snowball M, Yelton J, Zakaria M, Gaultney V, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams T, Askew A, Bochenek J, Chen J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Dorney B, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Bazterra VE, Betts RR, Bucinskaite I, Callner J, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Khalatyan S, Kurt P, Lacroix F, Moon DH, O’Brien C, Silkworth C, Strom D, Turner P, Varelas N, Akgun U, Albayrak EA, Bilki B, Clarida W, Dilsiz K, Duru F, Griffiths S, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Newsom CR, Ogul H, Onel Y, Ozok F, Sen S, Tan P, Tiras E, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bolognesi S, Giurgiu G, Gritsan AV, Hu G, Maksimovic P, Martin C, Swartz M, Whitbeck A, Baringer P, Bean A, Benelli G, Kenny RP, Murray M, Noonan D, Sanders S, Stringer R, Wood JS, Barfuss AF, Chakaberia I, Ivanov A, Khalil S, Makouski M, Maravin Y, Saini LK, Shrestha S, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Baden A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Kellogg RG, Kolberg T, Lu Y, Marionneau M, Mignerey AC, Pedro K, Peterman A, Skuja A, Temple J, Tonjes MB, Tonwar SC, Apyan A, Bauer G, Busza W, Cali IA, Chan M, Di Matteo L, Dutta V, Gomez Ceballos G, Goncharov M, Gulhan D, Kim Y, Klute M, Lai YS, Levin A, Luckey PD, Ma T, Nahn S, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Stöckli F, Sumorok K, Velicanu D, Wolf R, Wyslouch B, Yang M, Yilmaz Y, Yoon AS, Zanetti M, Zhukova V, Dahmes B, De Benedetti A, Gude A, Haupt J, Kao SC, Klapoetke K, Kubota Y, Mans J, Pastika N, Rusack R, Sasseville M, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Cremaldi LM, Kroeger R, Oliveros S, Perera L, Rahmat R, Sanders DA, Summers D, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Eads M, Suarez RG, Keller J, Kravchenko I, Lazo-Flores J, Malik S, Meier F, Snow GR, Dolen J, Godshalk A, Iashvili I, Jain S, Kharchilava A, Rappoccio S, Wan Z, Alverson G, Barberis E, Baumgartel D, Chasco M, Haley J, Massironi A, Nash D, Orimoto T, Trocino D, Wood D, Zhang J, Anastassov A, Hahn KA, Kubik A, Lusito L, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Velasco M, Won S, Berry D, Brinkerhoff A, Chan KM, Hildreth M, Jessop C, Karmgard DJ, Kolb J, Lannon K, Luo W, Lynch S, Marinelli N, Morse DM, Pearson T, Planer M, Ruchti R, Slaunwhite J, Valls N, Wayne M, Wolf M, Antonelli L, Bylsma B, Durkin LS, Hill C, Hughes R, Kotov K, Ling TY, Puigh D, Rodenburg M, Smith G, Vuosalo C, Winer BL, Wolfe H, Berry E, Elmer P, Halyo V, Hebda P, Hegeman J, Hunt A, Jindal P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Raval A, Saka H, Stickland D, Tully C, Werner JS, Zenz SC, Zuranski A, Brownson E, Lopez A, Mendez H, Vargas JER, Alagoz E, Benedetti D, Bolla G, Bortoletto D, De Mattia M, Everett A, Hu Z, Jones M, Jung K, Koybasi O, Kress M, Leonardo N, Pegna DL, Maroussov V, Merkel P, Miller DH, Neumeister N, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Yoo HD, Zablocki J, Zheng Y, Parashar N, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, Covarelli R, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Miner DC, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Ciesielski R, Demortier L, Goulianos K, Lungu G, Malik S, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Lath A, Panwalkar S, Park M, Patel R, Rekovic V, Robles J, Salur S, Schnetzer S, Seitz C, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Cerizza G, Hollingsworth M, Rose K, Spanier S, Yang ZC, York A, Bouhali O, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Kovitanggoon K, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Sakharov A, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Duric S, Friis E, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Klukas J, Lanaro A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Swanson J. Probing color coherence effects in pp collisions at [Formula: see text]

A study of color coherence effects in pp collisions at a center-of-mass energy of 7[Formula: see text] is presented. The data used in the analysis were collected in 2010 with the CMS detector at the LHC and correspond to an integrated luminosity of 36 pb[Formula: see text]. Events are selected that contain at least three jets and where the two jets with the largest transverse momentum exhibit a back-to-back topology. The measured angular correlation between the second- and third-leading jet is shown to be sensitive to color coherence effects, and is compared to the predictions of Monte Carlo models with various implementations of color coherence. None of the models describe the data satisfactorily.

John J, Sulak L, Alimena J, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Breedon R, Breto G, De La Barca Sanchez MC, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Houtz R, Ko W, Kopecky A, Lander R, Miceli T, Pellett D, Ricci-Tam F, Rutherford B, Searle M, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Andreev V, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Schlein P, Takasugi E, Traczyk P, Valuev V, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Jandir P, Liu H, Long OR, Luthra A, Nguyen H, Paramesvaran S, Sturdy J, Sumowidagdo S, Wilken R, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, Evans D, Holzner A, Kelley R, Lebourgeois M, Letts J, Macneill I, Padhi S, Palmer C, Petrucciani G, Pieri M, Sani M, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Campagnari C, D’Alfonso M, Danielson T, Flowers K, Geffert P, George C, Golf F, Incandela J, Justus C, Kalavase P, Kovalskyi D, Krutelyov V, Lowette S, Magaña Villalba R, Mccoll N, Pavlunin V, Ribnik J, Richman J, Rossin R, Stuart D, To W, West C, Apresyan A, Bornheim A, Bunn J, Chen Y, Di Marco E, Duarte J, Kcira D, Ma Y, Mott A, Newman HB, Rogan C, Spiropulu M, Timciuc V, Veverka J, Wilkinson R, Xie S, Yang Y, Zhu RY, Azzolini V, Calamba A, Carroll R, Ferguson T, Iiyama Y, Jang DW, Liu YF, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Drell BR, Ford WT, Gaz A, Lopez EL, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Alexander J, Chatterjee A, Eggert N, Gibbons LK, Hopkins W, Khukhunaishvili A, Kreis B, Mirman N, Kaufman GN, Patterson JR, Ryd A, Salvati E, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Burkett K, Butler JN, Chetluru V, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gao Y, Gottschalk E, Gray L, Green D, Gutsche O, Hare D, Harris RM, Hirschauer J, Hooberman B, Jindariani S, Johnson M, Joshi U, Kaadze K, Klima B, Kunori S, Kwan S, Linacre J, Lincoln D, Lipton R, Lykken J, Maeshima K, Marraffino JM, Outschoorn VIM, Maruyama S, Mason D, McBride P, Mishra K, Mrenna S, Musienko Y, Newman-Holmes C, O’Dell V, Prokofyev O, Ratnikova N, Sexton-Kennedy E, Sharma S, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitmore J, Wu W, Yang F, Yun JC, Acosta D, Avery P, Bourilkov D, Chen M, Cheng T, Das S, De Gruttola M, Di Giovanni GP, Dobur D, Drozdetskiy A, Field RD, Fisher M, Fu Y, Furic IK, Hugon J, Kim B, Konigsberg J, Korytov A, Kropivnitskaya A, Kypreos T, Low JF, Matchev K, Milenovic P, Mitselmakher G, Muniz L, Remington R, Rinkevicius A, Skhirtladze N, Snowball M, Yelton J, Zakaria M, Gaultney V, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams T, Askew A, Bochenek J, Chen J, Diamond B, Gleyzer SV, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Dorney B, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Bazterra VE, Betts RR, Bucinskaite I, Callner J, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Khalatyan S, Kurt P, Lacroix F, Moon DH, O’Brien C, Silkworth C, Strom D, Turner P, Varelas N, Akgun U, Albayrak EA, Bilki B, Clarida W, Dilsiz K, Duru F, Griffiths S, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Newsom CR, Ogul H, Onel Y, Ozok F, Sen S, Tan P, Tiras E, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bolognesi S, Giurgiu G, Gritsan AV, Hu G, Maksimovic P, Martin C, Swartz M, Whitbeck A, Baringer P, Bean A, Benelli G, Kenny RP, Murray M, Noonan D, Sanders S, Stringer R, Wood JS, Barfuss AF, Chakaberia I, Ivanov A, Khalil S, Makouski M, Maravin Y, Shrestha S, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Baden A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Kellogg RG, Kolberg T, Lu Y, Marionneau M, Mignerey AC, Pedro K, Peterman A, Skuja A, Temple J, Tonjes MB, Tonwar SC, Apyan A, Bauer G, Busza W, Cali IA, Chan M, Di Matteo L, Dutta V, Gomez Ceballos G, Goncharov M, Gulhan D, Kim Y, Klute M, Lai YS, Levin A, Luckey PD, Ma T, Nahn S, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Stöckli F, Sumorok K, Velicanu D, Wolf R, Wyslouch B, Yang M, Yilmaz Y, Yoon AS, Zanetti M, Zhukova V, Dahmes B, De Benedetti A, Franzoni G, Gude A, Haupt J, Kao SC, Klapoetke K, Kubota Y, Mans J, Pastika N, Rusack R, Sasseville M, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Cremaldi LM, Kroeger R, Oliveros S, Perera L, Rahmat R, Sanders DA, Summers D, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Eads M, Suarez RG, Keller J, Kravchenko I, Lazo-Flores J, Malik S, Meier F, Snow GR, Dolen J, Godshalk A, Iashvili I, Jain S, Kharchilava A, Kumar A, Rappoccio S, Wan Z, Alverson G, Barberis E, Baumgartel D, Chasco M, Haley J, Massironi A, Nash D, Orimoto T, Trocino D, Wood D, Zhang J, Anastassov A, Hahn KA, Kubik A, Lusito L, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Velasco M, Won S, Berry D, Brinkerhoff A, Chan KM, Hildreth M, Jessop C, Karmgard DJ, Kolb J, Lannon K, Luo W, Lynch S, Marinelli N, Morse DM, Pearson T, Planer M, Ruchti R, Slaunwhite J, Valls N, Wayne M, Wolf M, Antonelli L, Bylsma B, Durkin LS, Hill C, Hughes R, Kotov K, Ling TY, Puigh D, Rodenburg M, Smith G, Vuosalo C, Winer BL, Wolfe H, Berry E, Elmer P, Halyo V, Hebda P, Hegeman J, Hunt A, Jindal P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Raval A, Saka H, Stickland D, Tully C, Werner JS, Zenz SC, Zuranski A, Brownson E, Lopez A, Mendez H, Ramirez Vargas JE, Alagoz E, Benedetti D, Bolla G, Bortoletto D, De Mattia M, Everett A, Hu Z, Jones M, Jung K, Koybasi O, Kress M, Leonardo N, Lopes Pegna D, Maroussov V, Merkel P, Miller DH, Neumeister N, Shipsey I, Silvers D, Svyatkovskiy A, Vidal Marono M, Wang F, Xie W, Xu L, Yoo HD, Zablocki J, Zheng Y, Guragain S, Parashar N, Adair A, Akgun B, Ecklund KM, Geurts FJM, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, Covarelli R, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Miner DC, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Ciesielski R, Demortier L, Goulianos K, Lungu G, Malik S, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Lath A, Panwalkar S, Park M, Patel R, Rekovic V, Robles J, Salur S, Schnetzer S, Seitz C, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Cerizza G, Hollingsworth M, Rose K, Spanier S, Yang ZC, York A, Bouhali O, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Jeong C, Kovitanggoon K, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Don CKK, Lamichhane P, Sakharov A, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Friis E, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Klukas J, Lanaro A, Loveless R, Mohapatra A, Mozer MU, Ojalvo I, Pierro GA, Polese G, Ross I, Savin A, Smith WH, Swanson J. Study of the production of charged pions, kaons, and protons in pPb collisions at [Formula: see text]5.02[Formula: see text]

Spectra of identified charged hadrons are measured in pPb collisions with the CMS detector at the LHC at [Formula: see text]. Charged pions, kaons, and protons in the transverse-momentum range [Formula: see text]-1.7[Formula: see text] and laboratory rapidity [Formula: see text] are identified via their energy loss in the silicon tracker. The average [Formula: see text] increases with particle mass and the charged multiplicity of the event. The increase of the average [Formula: see text] with charged multiplicity is greater for heavier hadrons. Comparisons to Monte Carlo event generators reveal that Epos Lhc, which incorporates additional hydrodynamic evolution of the created system, is able to reproduce most of the data features, unlike Hijing and Ampt. The [Formula: see text] spectra and integrated yields are also compared to those measured in pp and PbPb collisions at various energies. The average transverse momentum and particle ratio measurements indicate that particle production at LHC energies is strongly correlated with event particle multiplicity.

Measurement of inclusive W and Z boson production cross sections in pp collisions at sqrt[s] = 8 TeV

A measurement of total and fiducial inclusive W and Z boson production cross sections in pp collisions at sqrt[s] = 8 TeV is presented. Electron and muon final states are analyzed in a data sample collected with the CMS detector corresponding to an integrated luminosity of 18.2 ± 0.5 pb(-1). The measured total inclusive cross sections times branching fractions are σ(pp → WX)×B(W → ℓν) = 12.21 ± 0.03(stat) ± 0.24(syst) ± 0.32(lum) nb and σ(pp → ZX) × B(Z → ℓ+ℓ-) = 1.15 ± 0.01(stat) ± 0.02(syst) ± 0.03(lum) nb for the dilepton mass in the range of 60-120 GeV. The measured values agree with next-to-next-to-leading-order QCD cross section calculations. Ratios of cross sections are reported with a precision of 2%. This is the first measurement of inclusive W and Z boson production in proton-proton collisions at sqrt[s] = 8 TeV.

Measurements of tt spin correlations and top-quark polarization using dilepton final states in pp collisions at sqrt[s]=7 TeV

Spin correlations and polarization in the top quark-antiquark system are measured using dilepton final states produced in pp collisions at the LHC at sqrt[s]=7  TeV. The data correspond to an integrated luminosity of 5.0  fb(-1) collected with the CMS detector. The measurements are performed using events with two oppositely charged leptons (electrons or muons), a significant imbalance in transverse momentum, and two or more jets, where at least one of the jets is identified as originating from a b quark. The spin correlations and polarization are measured through asymmetries in angular distributions of the two selected leptons, unfolded to the parton level. All measurements are found to be in agreement with predictions of the standard model.

Search for top-quark partners with charge 5/3 in the same-sign dilepton final state

A search for the production of heavy partners of the top quark with charge 5/3 is performed in events with a pair of same-sign leptons. The data sample corresponds to an integrated luminosity of 19.5 fb(-1) and was collected at sqrt[s] = 8 TeV by the CMS experiment. No significant excess is observed in the data above the expected background, and the existence of top-quark partners with masses below 800 GeV is excluded at a 95% confidence level, assuming they decay exclusively to tW. This is the first limit on these particles from the LHC, and it is significantly more restrictive than previous limits.

Search for flavor-changing neutral currents in top-quark decays t → Zq in pp collisions at sqrt[s] = 8 TeV

A search for flavor-changing neutral currents in top-quark decays t → Zq is performed in events produced from the decay chain tt → Zq+Wb, where both vector bosons decay leptonically, producing a final state with three leptons (electrons or muons). A data set collected with the CMS detector at the LHC is used, corresponding to an integrated luminosity of 19.7 fb(-1) of proton-proton collisions at a center-of-mass energy of 8 TeV. No excess is seen in the observed number of events relative to the standard model prediction; thus, no evidence for flavor-changing neutral currents in top-quark decays is found. A combination with a previous search at 7 TeV excludes a t → Zq branching fraction greater than 0.05% at the 95% confidence level.

Search for top squark and Higgsino production using diphoton Higgs boson decays

Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top quark (the top squark) and the Higgs boson (Higgsino) are accessible. Events are examined in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets. In 19.7  fb-1 of proton-proton collision data at s=8  TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the top squark mass below 360 to 410 GeV, depending on the Higgsino mass.

Inferred cosmic-ray spectrum from Fermi large area telescope γ-ray observations of Earth's limb

Recent accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA reveal an unexpected hardening in the proton and He spectra above a few hundred GeV, a gradual softening of the spectra just below a few hundred GeV, and a harder spectrum of He compared to that of protons. These newly discovered features may offer a clue to the origin of high-energy CRs. We use the Fermi Large Area Telescope observations of the γ-ray emission from Earth's limb for an indirect measurement of the local spectrum of CR protons in the energy range ∼90  GeV-6  TeV (derived from a photon energy range 15 GeV-1 TeV). Our analysis shows that single power law and broken power law spectra fit the data equally well and yield a proton spectrum with index 2.68±0.04 and 2.61±0.08 above ∼200  GeV, respectively.

Spontaneous muscle haematomas: management of 10 cases

This is a retrospective study about the treatment of spontaneous muscle haematomas (SMH) that are an uncommon disease that occurs especially in elderly patients with acquired coagulopathy. We report the management of 10 cases admitted to our Emergency Surgical Unit (ESU) between March 2011 and October 2012. For this analysis we have considered some parameters such as age, drug history, current symptoms, location of the haematoma, cause, and imaging examination. Our attention focused on: clinical presentation, differential diagnosis, diagnostic imaging techniques and treatments.

John J, Sulak L, Alimena J, Bhattacharya S, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Breedon R, Breto G, Calderon De La Barca Sanchez M, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Houtz R, Ko W, Kopecky A, Lander R, Mall O, Miceli T, Nelson R, Pellett D, Ricci-Tam F, Rutherford B, Searle M, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Andreev V, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Schlein P, Takasugi E, Traczyk P, Valuev V, Weber M, Babb J, Clare R, Dinardo ME, Ellison J, Gary JW, Hanson G, Liu H, Long OR, Luthra A, Nguyen H, Paramesvaran S, Sturdy J, Sumowidagdo S, Wilken R, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, Evans D, Holzner A, Kelley R, Lebourgeois M, Letts J, Macneill I, Mangano B, Padhi S, Palmer C, Petrucciani G, Pieri M, Sani M, Sharma V, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Bellan R, Campagnari C, D’Alfonso M, Danielson T, Flowers K, Geffert P, George C, Golf F, Incandela J, Justus C, Kalavase P, Kovalskyi D, Krutelyov V, Lowette S, naVillalba RM, Mccoll N, Pavlunin V, Ribnik J, Richman J, Rossin R, Stuart D, To W, West C, Apresyan A, Bornheim A, Bunn J, Chen Y, Di Marco E, Duarte J, Kcira D, Ma Y, Mott A, Newman HB, Rogan C, Spiropulu M, Timciuc V, Veverka J, Wilkinson R, Xie S, Yang Y, Zhu RY, Azzolini V, Calamba A, Carroll R, Ferguson T, Iiyama Y, Jang DW, Liu YF, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Drell BR, Ford WT, Gaz A, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Alexander J, Chatterjee A, Eggert N, Gibbons LK, Hopkins W, Khukhunaishvili A, Kreis B, Mirman N, Nicolas Kaufman G, Patterson JR, Ryd A, Salvati E, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, 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Gilmore J, Kamon T, Khotilovich V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Damgov J, Dragoiu C, Dudero PR, Jeong C, Kovitanggoon K, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Mao Y, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Sakharov A, Anderson M, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Friis E, Grogg KS, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Kaadze K, Klabbers P, Klukas J, Lanaro A, Lazaridis C, Loveless R, Mohapatra A, Mozer MU, Ojalvo I, Pierro GA, Ross I, Savin A, Smith WH, Swanson J. Measurement of the top-quark mass in all-jets [Formula: see text] events in pp collisions at [Formula: see text] TeV

The mass of the top quark is measured using a sample of [Formula: see text] candidate events with at least six jets in the final state. The sample is selected from data collected with the CMS detector in pp collisions at [Formula: see text] TeV in 2011 and corresponds to an integrated luminosity of 3.54 [Formula: see text]. The mass is reconstructed for each event employing a kinematic fit of the jets to a [Formula: see text] hypothesis. The top-quark mass is measured to be [Formula: see text] GeV. A combination with previously published measurements in other decay modes by CMS yields a mass of [Formula: see text] GeV.

Identification of G protein-coupled estrogen receptor in human and pig spermatozoa

Estrogens are known to influence functional properties of mammalian spermatozoa inducing rapid responses through the classical estrogen receptors (ERα and ERβ). Recently, the G protein-coupled estrogen receptor (GPER) has been identified as mediator of fast non-genomic estrogen effects in different cells. This work investigated the expression of GPER in human and pig spermatozoa using immunofluorescence, Western blot analysis and RT-PCR. GPER was found to be confined to the mid-piece of human sperm cells, whereas it was detected in the acrosomal region, the equatorial segment and the mid-piece of pig spermatozoa. Furthermore, in the male gametes of both species, the immunoblots of sperm extracts revealed a band at ~42 kDa, consistent with the GPER molecular weight, and RT-PCR detected the GPER transcripts. This is the first report demonstrating the expression of GPER in human and pig mature sperm cells and evidencing its species-specific cellular localization.

Fermi LARGE AREA TELESCOPE OBSERVATIONS OF BLAZAR 3C 279 OCCULTATIONS BY THE SUN

Observations of occultations of bright γ-ray sources by the Sun may reveal predicted pair halos around blazars and/or new physics, such as, e.g., hypothetical light dark matter particles-axions. We use Fermi Gamma-Ray Space Telescope (Fermi) data to analyze four occultations of blazar 3C 279 by the Sun on October 8 each year from 2008 to 2011. A combined analysis of the observations of these occultations allows a point-like source at the position of 3C 279 to be detected with significance of ≈3σ, but does not reveal any significant excess over the flux expected from the quiescent Sun. The likelihood ratio test rules out complete transparency of the Sun to the blazar γ-ray emission at a 3σ confidence level.

Estrogen receptor beta as a novel target of androgen receptor action in breast cancer cell lines

INTRODUCTION

The two isoforms of estrogen receptor (ER) alpha and beta play opposite roles in regulating proliferation and differentiation of breast cancers, with ER-alpha mediating mitogenic effects and ER-beta acting as a tumor suppressor. Emerging data have reported that androgen receptor (AR) activation inhibits ER-positive breast cancer progression mainly by antagonizing ER-alpha signaling. However, to date no studies have specifically evaluated a potential involvement of ER-beta in the inhibitory effects of androgens.

METHODS

ER-beta expression was examined in human breast cancer cell lines using real-time PCR, Western blotting and small interfering RNA (siRNA) assays. Mutagenesis studies, electromobility shift assay (EMSA) and chromatin immunoprecipitation (ChIP) analysis were performed to assess the effects of mibolerone/AR on ER-beta promoter activity and binding.

RESULTS

In this study, we demonstrate that mibolerone, a synthetic androgen ligand, up-regulates ER-beta mRNA and protein levels in ER-positive breast cancer cells. Transient transfection experiments, using a vector containing the human ER-beta promoter region, show that mibolerone increases basal ER-beta promoter activity. Site-directed mutagenesis and deletion analysis reveal that an androgen response element (ARE), TGTTCT motif located at positions -383 and -377, is critical for mibolerone-induced ER-beta up-regulation in breast cancer cells. This occurs through an increased recruitment of AR to the ARE site within the ER-beta promoter region, along with an enhanced occupancy of RNA polymerase II. Finally, silencing of ER-beta gene expression by RNA interference is able to partially reverse the effects of mibolerone on cell proliferation, p21 and cyclin D1 expression.

CONCLUSIONS

Collectively, these data provide evidence for a novel mechanism by which activated AR, through an up-regulation of ER-beta gene expression, inhibits breast cancer cell growth.