在质心能量平方根\(\sqrt{s}=1.96\) TeV的质子-质子碰撞中对W玻色子产生的电荷不对称性进行直接测量。
Direct measurement of the W production charge asymmetry in pp collisions at square root s=1.96 TeV.
作者信息
Aaltonen T, Adelman J, Akimoto T, Alvarez González B, Amerio S, Amidei D, Anastassov A, Annovi A, Antos J, Apollinari G, Apresyan A, Arisawa T, Artikov A, Ashmanskas W, Attal A, Aurisano A, Azfar F, Azzurri P, Badgett W, Barbaro-Galtieri A, Barnes V E, Barnett B A, Bartsch V, Bauer G, Beauchemin P-H, Bedeschi F, Beecher D, Behari S, Bellettini G, Bellinger J, Benjamin D, Beretvas A, Beringer J, Bhatti A, Binkley M, Bisello D, Bizjak I, Blair R E, Blocker C, Blumenfeld B, Bocci A, Bodek A, Boisvert V, Bolla G, Bortoletto D, Boudreau J, Boveia A, Brau B, Bridgeman A, Brigliadori L, Bromberg C, Brubaker E, Budagov J, Budd H S, Budd S, Burke S, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum K L, Cabrera S, Calancha C, 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, Chang S H, Chen Y C, Chertok M, Chiarelli G, Chlachidze G, Chlebana F, Cho K, Chokheli D, Chou J P, Choudalakis G, Chuang S H, Chung K, Chung W H, Chung Y S, Chwalek T, Ciobanu C I, Ciocci M A, Clark A, Clark D, Compostella G, Convery M E, Conway J, Cordelli M, Cortiana G, Cox C A, Cox D J, Crescioli F, Cuenca Almenar C, Cuevas J, Culbertson R, Cully J C, Dagenhart D, Datta M, Davies T, de Barbaro P, De Cecco S, Deisher A, De Lorenzo G, Dell'orso M, Deluca C, Demortier L, Deng J, Deninno M, Derwent P F, di Giovanni G P, Dionisi C, Di Ruzza B, Dittmann J R, D'Onofrio M, Donati S, Dong P, Donini J, Dorigo T, Dube S, Efron J, Elagin A, Erbacher R, Errede D, Errede S, Eusebi R, Fang H C, Farrington S, Fedorko W T, Feild R G, Feindt M, Fernandez J P, Ferrazza C, Field R, Flanagan G, Forrest R, Frank M J, Franklin M, Freeman J C, Furic I, Gallinaro M, Galyardt J, Garberson F, Garcia J E, Garfinkel A F, Genser K, Gerberich H, Gerdes D, Gessler A, Giagu S, Giakoumopoulou V, Giannetti P, Gibson K, Gimmell J L, Ginsburg C M, Giokaris N, Giordani M, Giromini P, Giunta M, Giurgiu G, Glagolev V, Glenzinski D, Gold M, Goldschmidt N, Golossanov A, Gomez G, Gomez-Ceballos G, Goncharov M, González O, Gorelov I, Goshaw A T, Goulianos K, Gresele A, Grinstein S, Grosso-Pilcher C, Grundler U, Guimaraes da Costa J, Gunay-Unalan Z, Haber C, Hahn K, Hahn S R, Halkiadakis E, Han B-Y, Han J Y, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr R F, Harris R M, Hartz M, Hatakeyama K, Hays C, Heck M, Heijboer A, Heinrich J, Henderson C, Herndon M, Heuser J, Hewamanage S, Hidas D, Hill C S, Hirschbuehl D, Hocker A, Hou S, Houlden M, Hsu S-C, Huffman B T, Hughes R E, Husemann U, Hussein M, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, James E, Jang D, Jayatilaka B, Jeon E J, Jha M K, Jindariani S, Johnson W, Jones M, Joo K K, Jun S Y, Jung J E, Junk T R, Kamon T, Kar D, Karchin P E, Kato Y, Kephart R, Keung J, Khotilovich V, Kilminster B, Kim D H, Kim H S, Kim H W, Kim J E, Kim M J, Kim S B, Kim S H, Kim Y K, Kimura N, Kirsch L, Klimenko S, Knuteson B, Ko B R, Kondo K, Kong D J, Konigsberg J, Korytov A, Kotwal A V, Kreps M, Kroll J, Krop D, Krumnack N, Kruse M, Krutelyov V, Kubo T, Kuhr T, Kulkarni N P, Kurata M, Kwang S, Laasanen A T, Lami S, Lammel S, Lancaster M, Lander R L, Lannon K, Lath A, Latino G, Lazzizzera I, Lecompte T, Lee E, Lee H S, Lee S W, Leone S, Lewis J D, Lin C-S, Linacre J, Lindgren M, Lipeles E, Lister A, Litvintsev D O, Liu C, Liu T, Lockyer N S, Loginov A, Loreti M, Lovas L, Lucchesi D, Luci C, Lueck J, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Macqueen D, Madrak R, Maeshima K, Makhoul K, Maki T, Maksimovic P, Malde S, Malik S, Manca G, Manousakis-Katsikakis A, Margaroli F, Marino C, Marino C P, Martin A, Martin V, Martínez M, Martínez-Ballarín R, Maruyama T, Mastrandrea P, Masubuchi T, Mathis M, Mattson M E, Mazzanti P, McFarland K S, McIntyre P, McNulty R, Mehta A, Mehtala P, Menzione A, Merkel P, Mesropian C, Miao T, Miladinovic N, Miller R, Mills C, Milnik M, Mitra A, Mitselmakher G, Miyake H, Moggi N, Moon C S, Moore R, Morello M J, Morlock J, Movilla Fernandez P, Mülmenstädt J, Mukherjee A, Muller Th, Mumford R, Murat P, Mussini M, Nachtman J, Nagai Y, Nagano A, Naganoma J, Nakamura K, Nakano I, Napier A, Necula V, Nett J, Neu C, Neubauer M S, Neubauer S, Nielsen J, Nodulman L, Norman M, Norniella O, Nurse E, Oakes L, Oh S H, Oh Y D, Oksuzian I, Okusawa T, Orava R, Osterberg K, Pagan Griso S, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov A A, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, Peiffer T, Pellett D E, Penzo A, Phillips T J, Piacentino G, Pianori E, Pinera L, Pitts K, Plager C, Pondrom L, Poukhov O, Pounder N, Prakoshyn F, Pronko A, Proudfoot J, Ptohos F, Pueschel E, Punzi G, Pursley J, Rademacker J, Rahaman A, Ramakrishnan V, Ranjan N, Redondo I, Renton P, Renz M, Rescigno M, Richter S, Rimondi F, Ristori L, Robson A, Rodrigo T, Rodriguez T, Rogers E, Rolli S, Roser R, Rossi M, Rossin R, Roy P, Ruiz A, Russ J, Rusu V, Rutherford B, Saarikko H, Safonov A, Sakumoto W K, Saltó O, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Schlabach P, Schmidt A, Schmidt E E, Schmidt M A, Schmidt M P, Schmitt M, Schwarz T, Scodellaro L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sforza F, Sfyrla A, Shalhout S Z, Shears T, Shepard P F, Shimojima M, Shiraishi S, Shochet M, Shon Y, Shreyber I, Sidoti A, Sinervo P, Sisakyan A, Slaughter A J, Slaunwhite J, Sliwa K, Smith J R, Snider F D, Snihur R, Soha A, Somalwar S, Sorin V, Spalding J, Spreitzer T, Squillacioti P, Stanitzki M, St Denis R, Stelzer B, Stelzer-Chilton O, Stentz D, Strologas J, Strycker G L, Stuart D, Suh J S, Sukhanov A, Suslov I, Suzuki T, Taffard A, Takashima R, Takeuchi Y, Tanaka R, Tecchio M, Teng P K, Terashi K, Thom J, Thompson A S, Thompson G A, Thomson E, Tipton P, Ttito-Guzmán P, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Tourneur S, Trovato M, Tsai S-Y, Tu Y, Turini N, Ukegawa F, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Wagner P, Wagner R G, Wagner R L, Wagner W, Wagner-Kuhr J, Wakisaka T, Wallny R, Wang S M, Warburton A, Waters D, Weinberger M, Weinelt J, Wester W C, Whitehouse B, Whiteson D, Wicklund A B, Wicklund E, Wilbur S, Williams G, Williams H H, Wilson P, Winer B L, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Würthwein F, Xie S, Yagil A, Yamamoto K, Yamaoka J, Yang U K, Yang Y C, Yao W M, Yeh G P, Yoh J, Yorita K, Yoshida T, Yu G B, Yu I, Yu S S, Yun J C, Zanello L, Zanetti A, Zhang X, Zheng Y, Zucchelli S
机构信息
Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland.
出版信息
Phys Rev Lett. 2009 May 8;102(18):181801. doi: 10.1103/PhysRevLett.102.181801. Epub 2009 May 6.
We present the first direct measurement of the W production charge asymmetry as a function of the W boson rapidity yW in pp collisions at sqrt[s]=1.96 TeV. We use a sample of W-->enu events in data from 1 fb-1 of integrated luminosity collected using the CDF II detector. In the region |yW|<3.0, this measurement is capable of constraining the ratio of up- and down-quark momentum distributions in the proton more directly than in previous measurements of the asymmetry that are functions of the charged-lepton pseudorapidity.
我们展示了在(\sqrt{s}=1.96) TeV的质子-质子碰撞中，作为W玻色子快度(y_W)的函数的W产生电荷不对称性的首次直接测量。我们使用CDF II探测器收集的1 fb⁻¹积分亮度数据中的W→enu事件样本。在(\vert y_W\vert\lt3.0)的区域，与之前作为带电轻子赝快度函数的不对称性测量相比，该测量能够更直接地约束质子中上下夸克动量分布的比率。
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