在质心能量√s = 1.96 TeV的质子-质子碰撞中对ZZ产生的观测。
Observation of ZZ production in p-p collisions at sqrt s=1.96 TeV.
作者信息
Abazov V M, Abbott B, Abolins M, Acharya B S, Adams M, Adams T, Aguilo E, Ahsan M, Alexeev G D, Alkhazov G, Alton A, Alverson G, Alves G A, Anastasoaie M, Ancu L S, Andeen T, Andrieu B, Anzelc M S, Aoki M, Arnoud Y, Arov M, Arthaud M, Askew A, Asman B, Assis Jesus A C S, Atramentov O, Avila C, Badaud F, Bagby L, Baldin B, Bandurin D V, Banerjee P, Banerjee S, Barberis E, Barfuss A-F, Bargassa P, Baringer P, Barreto J, Bartlett J F, Bassler U, Bauer D, Beale S, Bean A, Begalli M, Begel M, Belanger-Champagne C, Bellantoni L, Bellavance A, Benitez J A, Beri S B, Bernardi G, Bernhard R, Bertram I, Besançon M, Beuselinck R, Bezzubov V A, Bhat P C, Bhatnagar V, Biscarat C, Blazey G, Blekman F, Blessing S, Bloom K, Boehnlein A, Boline D, Bolton T A, Boos E E, Borissov G, Bose T, Brandt A, Brock R, Brooijmans G, Bross A, Brown D, Bu X B, Buchanan N J, Buchholz D, Buehler M, Buescher V, Bunichev V, Burdin S, Burnett T H, Buszello C P, Butler J M, Calfayan P, Calvet S, Cammin J, Carrera E, Carvalho W, Casey B C K, Castilla-Valdez H, Cerminara G, Chakrabarti S, Chakraborty D, Chan K M, Chandra A, Cheu E, Chevallier F, Cho D K, Choi S, Choudhary B, Christofek L, Christoudias T, Cihangir S, Claes D, Clutter J, Cooke M, Cooper W E, Corcoran M, Couderc F, Cousinou M-C, Crépé-Renaudin S, Cuplov V, Cutts D, Cwiok M, da Motta H, Das A, Davies G, De K, de Jong S J, De La Cruz-Burelo E, De Oliveira Martins C, DeVaughan K, Degenhardt J D, Déliot F, Demarteau M, Demina R, Denisov D, Denisov S P, Desai S, Diehl H T, Diesburg M, Dominguez A, Dong H, Dorland T, Dubey A, Dudko L V, Duflot L, Dugad S R, Duggan D, Duperrin A, Dyer J, Dyshkant A, Eads M, Edmunds D, Ellison J, Elvira V D, Enari Y, Eno S, Ermolov P, Evans H, Evdokimov A, Evdokimov V N, Facini G, Ferapontov A V, Ferbel T, Fiedler F, Filthaut F, Fisher W, Fisk H E, Fortner M, Fox H, Fu S, Fuess S, Gadfort T, Galea C F, Garcia C, Garcia-Bellido A, Gavrilov V, Gay P, Geist W, Geng W, Gerber C E, Gershtein Y, Gillberg D, Ginther G, Gollub N, Gómez B, Goussiou A, Grannis P D, Greenlee H, Greenwood Z D, Gregores E M, Grenier G, Gris Ph, Grivaz J-F, Grohsjean A, Grünendahl S, Grünewald M W, Guo F, Guo J, Gutierrez G, Gutierrez P, Haas A, Hadley N J, Haefner P, Hagopian S, Haley J, Hall I, Hall R E, Han L, Harder K, Harel A, Hauptman J M, Hays J, Hebbeker T, Hedin D, Hegeman J G, Heinson A P, Heintz U, Hensel C, Herner K, Hesketh G, Hildreth M D, Hirosky R, Hobbs J D, Hoeneisen B, Hoeth H, Hohlfeld M, Hossain S, Houben P, Hu Y, Hubacek Z, Hynek V, Iashvili I, Illingworth R, Ito A S, Jabeen S, Jaffré M, Jain S, Jakobs K, Jarvis C, Jesik R, Johns K, Johnson C, Johnson M, Johnston D, Jonckheere A, Jonsson P, Juste A, Kajfasz E, Kalk J M, Karmanov D, Kasper P A, Katsanos I, Kau D, Kaushik V, Kehoe R, Kermiche S, Khalatyan N, Khanov A, Kharchilava A, Kharzheev Y M, Khatidze D, Kim T J, Kirby M H, Kirsch M, Klima B, Kohli J M, Konrath J-P, Kozelov A V, Kraus J, Kuhl T, Kumar A, Kupco A, Kurca T, Kuzmin V A, Kvita J, Lacroix F, Lam D, Lammers S, Landsberg G, Lebrun P, Lee W M, Leflat A, Lellouch J, Li J, Li L, Li Q Z, Lietti S M, Lim J K, Lima J G R, Lincoln D, Linnemann J, Lipaev V V, Lipton R, Liu Y, Liu Z, Lobodenko A, Lokajicek M, Love P, Lubatti H J, Luna R, Lyon A L, Maciel A K A, Mackin D, Madaras R J, Mättig P, Magass C, Magerkurth A, Mal P K, Malbouisson H B, Malik S, Malyshev V L, Maravin Y, Martin B, McCarthy R, Melnitchouk A, Mendoza L, Mercadante P G, Merkin M, Merritt K W, Meyer A, Meyer J, Mitrevski J, Mommsen R K, Mondal N K, Moore R W, Moulik T, Muanza G S, Mulhearn M, Mundal O, Mundim L, Nagy E, Naimuddin M, Narain M, Naumann N A, Neal H A, Negret J P, Neustroev P, Nilsen H, Nogima H, Novaes S F, Nunnemann T, O'Dell V, O'Neil D C, Obrant G, Ochando C, Onoprienko D, Oshima N, Osman N, Osta J, Otec R, Otero y Garzón G J, Owen M, Padley P, Pangilinan M, Parashar N, Park S-J, Park S K, Parsons J, Partridge R, Parua N, Patwa A, Pawloski G, Penning B, Perfilov M, Peters K, Peters Y, Pétroff P, Petteni M, Piegaia R, Piper J, Pleier M-A, Podesta-Lerma P L M, Podstavkov V M, Pogorelov Y, Pol M-E, Polozov P, Pope B G, Popov A V, Potter C, Prado da Silva W L, Prosper H B, Protopopescu S, Qian J, Quadt A, Quinn B, Rakitine A, Rangel M S, Ranjan K, Ratoff P N, Razumov I, Renkel P, Rich P, Rieger J, Rijssenbeek M, Ripp-Baudot I, Rizatdinova F, Robinson S, Rodrigues R F, Rominsky M, Royon C, Rubinov P, Ruchti R, Safronov G, Sajot G, Sánchez-Hernández A, Sanders M P, Sanghi B, Savage G, Sawyer L, Scanlon T, Schaile D, Schamberger R D, Scheglov Y, Schellman H, Schliephake T, Schlobohm S, Schwanenberger C, Schwartzman A, Schwienhorst R, Sekaric J, Severini H, Shabalina E, Shamim M, Shary V, Shchukin A A, Shivpuri R K, Siccardi V, Simak V, Sirotenko V, Skubic P, Slattery P, Smirnov D, Snow G R, Snow J, Snyder S, Söldner-Rembold S, Sonnenschein L, Sopczak A, Sosebee M, Soustruznik K, Spurlock B, Stark J, Steele J, Stolin V, Stoyanova D A, Strandberg J, Strandberg S, Strang M A, Strauss E, Strauss M, Ströhmer R, Strom D, Stutte L, Sumowidagdo S, Svoisky P, Sznajder A, Tamburello P, Tanasijczuk A, Taylor W, Tiller B, Tissandier F, Titov M, Tokmenin V V, Torchiani I, Tsybychev D, Tuchming B, Tully C, Tuts P M, Unalan R, Uvarov L, Uvarov S, Uzunyan S, Vachon B, van den Berg P J, Van Kooten R, van Leeuwen W M, Varelas N, Varnes E W, Vasilyev I A, Verdier P, Vertogradov L S, Verzocchi M, Vilanova D, Villeneuve-Seguier F, Vint P, Vokac P, Voutilainen M, Wagner R, Wahl H D, Wang M H L S, Warchol J, Watts G, Wayne M, Weber G, Weber M, Welty-Rieger L, Wenger A, Wermes N, Wetstein M, White A, Wicke D, Williams M, Wilson G W, Wimpenny S J, Wobisch M, Wood D R, Wyatt T R, Xie Y, Yacoob S, Yamada R, Yang W-C, Yasuda T, Yatsunenko Y A, Yin H, Yip K, Yoo H D, Youn S W, Yu J, Zeitnitz C, Zelitch S, Zhao T, Zhou B, Zhu J, Zielinski M, Zieminska D, Zieminski A, Zivkovic L, Zutshi V, Zverev E G
机构信息
Joint Institute for Nuclear Research, Dubna, Russia.
出版信息
Phys Rev Lett. 2008 Oct 24;101(17):171803. doi: 10.1103/PhysRevLett.101.171803. Epub 2008 Oct 23.
We present an observation for ZZ-->l+l-l'+l'- (l, l'=e or mu) production in p[over]p collisions at a center-of-mass energy of sqrt[s]=1.96 TeV. Using 1.7 fb(-1) of data collected by the D0 experiment at the Fermilab Tevatron Collider, we observe three candidate events with an expected background of 0.14(+0.03)(-0.02) events. The significance of this observation is 5.3 standard deviations. The combination of D0 results in this channel, as well as in ZZ-->l+l- nu[over]nu, yields a significance of 5.7 standard deviations and a combined cross section of sigma(ZZ)=1.60+/-0.63(stat)+0.16-0.17(syst) pb.
我们展示了在费米实验室万亿电子伏特加速器质心能量(\sqrt{s}=1.96)太电子伏特的(p\bar{p})碰撞中(ZZ \to l^+l^-l'^+l'^-)（(l, l' = e)或(\mu)）产生过程的一项观测结果。利用费米实验室万亿电子伏特加速器上D0实验收集的(1.7)飞靶(^{-1})数据，我们观测到三个候选事例，预期本底为(0.14(^{ + 0.03}{ - 0.02}))个事例。这一观测的显著性为(5.3)个标准差。该道次以及(ZZ \to l^+l^-\nu\bar{\nu})道次的D0结果相结合，显著性为(5.7)个标准差，组合截面为(\sigma(ZZ)=1.60\pm0.63)（统计）( + 0.16{ - 0.17})（系统）皮靶。
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