在质心能量√s = 1.96 TeV的质子-质子碰撞中寻找味变中性流衰变t→Zq。
Search for the flavor-changing neutral-current decay t-->Zq in pp collisions at sqrt[s] = 1.96 TeV.
作者信息
Aaltonen T, Adelman J, Akimoto T, Albrow M G, 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, Bednar P, 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, Burkett K, Busetto G, Bussey P, Buzatu A, Byrum K L, Cabrera S, Calancha C, Campanelli M, Campbell M, Canelli F, Canepa A, 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, Ciobanu C I, Ciocci M A, Clark A, Clark D, Compostella G, Convery M E, Conway J, Copic K, Cordelli M, Cortiana G, 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, 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, Handler R, Happacher F, Hara K, Hare D, Hare M, Harper S, Harr R F, Harris R M, Hartz M, Hatakeyama K, Hauser J, Hays C, Heck M, Heijboer A, Heinemann B, 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, Huston J, Incandela J, Introzzi G, Iori M, Ivanov A, James E, 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 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, Koay S A, 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, Kusakabe Y, 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 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, Lu R-S, Lucchesi D, Lueck J, Luci C, Lujan P, Lukens P, Lungu G, Lyons L, Lys J, Lysak R, Lytken E, Mack P, 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, 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, Morlok 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, Neu C, Neubauer M 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, Griso S Pagan, Pagliarone C, Palencia E, Papadimitriou V, Papaikonomou A, Paramonov A A, Parks B, Pashapour S, Patrick J, Pauletta G, Paulini M, Paus C, 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, Reisert B, Rekovic V, Renton P, 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, Saarikko H, Safonov A, Sakumoto W K, Saltó O, Saltzberg D, Santi L, Sarkar S, Sartori L, Sato K, Savoy-Navarro A, Scheidle T, Schlabach P, Schmidt A, Schmidt E E, Schmidt M A, Schmidt M P, Schmitt M, Schwarz T, Scodellaro L, Scott A L, Scribano A, Scuri F, Sedov A, Seidel S, Seiya Y, Semenov A, Sexton-Kennedy L, Sfyrla A, Shalhout S Z, Shears T, Shepard P F, Sherman D, 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, Stuart D, Suh J S, Sukhanov A, Sutherland M, 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, Tiwari V, Tkaczyk S, Toback D, Tokar S, Tollefson K, Tomura T, Tonelli D, Torre S, Torretta D, Totaro P, Tourneur S, Tu Y, Turini N, Ukegawa F, Vallecorsa S, van Remortel N, Varganov A, Vataga E, Vázquez F, Velev G, Vellidis C, Veszpremi V, Vidal M, Vidal R, Vila I, Vilar R, Vine T, Vogel M, Volobouev I, Volpi G, Würthwein F, Wagner P, Wagner R G, Wagner R L, Wagner-Kuhr J, Wagner W, Wakisaka T, Wallny R, Wang S M, Warburton A, Waters D, Weinberger M, Wester W C, Whitehouse B, Whiteson D, Wicklund A B, Wicklund E, Williams G, Williams H H, Wilson P, Winer B L, Wittich P, Wolbers S, Wolfe C, Wright T, Wu X, Wynne S M, 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, Zaw I, 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. 2008 Nov 7;101(19):192002. doi: 10.1103/PhysRevLett.101.192002.
We report a search for the flavor-changing neutral-current decay of the top quark t-->Zq (q=u, c) in pp collisions at sqrt[s]=1.96 TeV using a data sample corresponding to an integrated luminosity of 1.9 fb(-1) collected by the CDF II detector. This decay is strongly suppressed in the standard model and an observation of a signal at the Fermilab Tevatron would be an indication of physics beyond the standard model. Using Z+ > or = 4 jet final state candidate events, with and without an identified bottom quark jet, we obtain an upper limit of B(t-->Zq) < 3.7% at 95% C.L.
我们报告了一项在(\sqrt{s}=1.96) TeV的质子-质子碰撞中，利用CDF II探测器收集的对应于1.9 fb(^{-1})积分亮度的数据样本，寻找顶夸克(t\rightarrow Zq)（(q = u)，(c)）味变中性流衰变的研究。这种衰变在标准模型中受到强烈抑制，在费米实验室的Tevatron对信号的观测将表明超出标准模型的物理现象。利用有和没有识别出的底夸克喷注的(Z+\geq4)喷注末态候选事件，我们在95%置信水平下得到(B(t\rightarrow Zq)<3.7%)的上限。
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