Observation of WZ production

Abulencia, A; Adelman, J; Affolder, T; Akimoto, T; Albrow, Mg; Ambrose, D; Amerio, S; Amidei, D; Anastassov, A; Anikeev, K; Annovi, A; Antos, J; Aoki, M; Apollinari, G; Arguin, Jf; Arisawa, T; Artikov, A; Ashmanskas, W; Attal, A; Azfar, F; Azzi Bacchetta, P; Azzurri, P; Bacchetta, N; Badgett, W; Barbaro Galtieri, A; Barnes, Ve; Barnett, Ba; Baroiant, S; Bartsch, V; Bauer, G; Bedeschi, F; Behari, S; Belforte, S; Bellettini, G; Bellinger, J; Belloni, A; Benjamin, D; Beretvas, A; Beringer, J; Berry, T; Bhatti, A; Binkley, M; Bisello, D; Blair, Re; Blocker, C; Blumenfeld, B; Bocci, A; Bodek, A; Boisvert, V; Bolla, G; Bolshov, A; Bortoletto, D; Boudreau, J; Boveia, A; Brau, B; Brigliadori, L; Bromberg, C; Brubaker, E; Budagov, J; Budd, Hs; Budd, S; Budroni, S; Burkett, K; Busetto, G; Bussey, P; Byrum, Kl; Cabrera, S; Campanelli, M; Campbell, M; Canelli, F; Canepa, A; Carillo, S; Carlsmith, D; Carosi, R; Carron, S; Casarsa, M; Castro, A; Catastini, P; Cauz, D; Cavalli Sforza, M; Cerri, A; Cerrito, L; 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doi:10.1103/PhysRevLett.98.161801

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We report the first observation of the associated production of a W boson and a Z boson. This result is based on 1.1 fb(-1) of integrated luminosity from p (p) over bar collisions at root s=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We observe 16 WZ candidates passing our event selection with an expected background of 2.7 +/- 0.4 events. A fit to the missing transverse energy distribution indicates an excess of events compared to the background expectation corresponding to a significance equivalent to 6 standard deviations. The measured cross section is sigma(p (p) over bar -> WZ)=5.0(-1.6)(+1.8) pb, consistent with the standard model expectation. RI Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; St.Denis, Richard/C-8997-2012; Prokoshin, Fedor/E-2795-2012; Azzi, Patrizia/H-5404-2012

Digital Object Identifier (DOI):	10.1103/PhysRevLett.98.161801
Codice identificativo ISI:	WOS:000245871200018
Codice identificativo Scopus:	2-s2.0-34247351071
Handle:	http://hdl.handle.net/11695/2816
Abstract:	We report the first observation of the associated production of a W boson and a Z boson. This result is based on 1.1 fb(-1) of integrated luminosity from p (p) over bar collisions at root s=1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We observe 16 WZ candidates passing our event selection with an expected background of 2.7 +/- 0.4 events. A fit to the missing transverse energy distribution indicates an excess of events compared to the background expectation corresponding to a significance equivalent to 6 standard deviations. The measured cross section is sigma(p (p) over bar -> WZ)=5.0(-1.6)(+1.8) pb, consistent with the standard model expectation. RI Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; St.Denis, Richard/C-8997-2012; Prokoshin, Fedor/E-2795-2012; Azzi, Patrizia/H-5404-2012
Titolo:	Observation of WZ production
Autori:	Abulencia A Adelman J Affolder T Akimoto T Albrow MG Ambrose D Amerio S Amidei D Anastassov A Anikeev K Annovi A Antos J Aoki M Apollinari G Arguin JF Arisawa T Artikov A Ashmanskas W Attal A Azfar F Azzi Bacchetta P Azzurri P Bacchetta N Badgett W Barbaro Galtieri A Barnes VE Barnett BA Baroiant S Bartsch V Bauer G Bedeschi F Behari S Belforte S Bellettini G Bellinger J Belloni A Benjamin D Beretvas A Beringer J Berry T Bhatti A Binkley M Bisello D Blair RE Blocker C Blumenfeld B Bocci A Bodek A Boisvert V Bolla G Bolshov A Bortoletto D Boudreau J Boveia A Brau B Brigliadori L Bromberg C Brubaker E Budagov J Budd HS Budd S Budroni S Burkett K Busetto G Bussey P Byrum KL Cabrera S Campanelli M Campbell M Canelli F Canepa A Carillo S Carlsmith D Carosi R Carron S Casarsa M Castro A Catastini P Cauz D Cavalli Sforza M Cerri A Cerrito L Chang SH Chen YC Chertok M Chiarelli G Chlachidze G Chlebana F Cho I Cho K Chokheli D Chou JP Choudalakis G Chuang SH Chung K Chung WH Chung YS Ciljak M Ciobanu CI Ciocci MA Clark A Clark D Coca M Compostella G Convery ME Conway J Cooper B Copic K Cordelli M Cortiana G Crescioli F Almenaro CC Cuevas J Culbertson R Cully JC Cyr D DaRonco S Datta M D'Auria S Davies T D'Onofrio M Dagenhart D de Barbaro P De Cecco S Deisher A De Lentdeckerc G Dell'Orso M Delli Paoli F Demortier L Deng J Deninno M De Pedis D Derwent PF Di Giovanni GP Dionisi C Di Ruzza B Dittmann JR DiTuro P Dorr C Donati S Donega M Dong P Donini J Dorigo T Dube S Efron J Erbacher R Errede D Errede S Eusebi R Fang HC Farrington S Fedorko I Fedorko WT Feild RG Feindt M Fernandez JP Field R Flanagan G Foland A Forrester S Foster GW Franklin M Freeman JC Furic I Gallinaro M Galyardt J Garcia JE Garberson F Garfinkel AF Gay C Gerberich H Gerdes D Giagu S Giannetti P Gibson A Gibson K Gimmell JL Ginsburg C Giokaris N Giordani M Giromini P Giunta M Giurgiu G Glagolev V Glenzinski D Gold M Goldschmidt N Goldstein J Golossanov A Gomez G Gomez Ceballos G Goncharov M Gonzalez O Gorelov I Goshaw AT Goulianos K Gresele A Griffiths M Grinstein S Grosso Pilcher C Group RC Grundler U da Costa JG Gunay Unalan Z Haber C Hahn K Hahn SR Halkiadakis E Hamilton A Han BY Han JY Handler R Happacher F Hara K Hare M Harper S Harr RF Harris RM Hartz M Hatakeyama K Hauser J Heijboer A Heinemann B Heinrich J Henderson C Herndon M Heuser J Hidas D Hill CS Hirschbuehl D Hocker A Holloway A Hou S Houlden M Hsu SC Huffman BT Hughes RE Husemann U Huston J Incandela J Introzzi G Iori M Ishizawa Y Ivanov A Iyutin B James E Jang D Jayatilaka B Jeans D Jensen H Jeon EJ Jindariani S Jones M Joo KK Jun SY Jung JE Junk TR Kamon T Karchin PE Kato Y Kemp Y Kephart R Kerzel U Khotilovich V Kilminster B Kim DH Kim HS Kim JE Kim MJ Kim SB Kim SH Kim YK Kimura N Kirsch L Klimenko S Klute M Knuteson B Ko BR Kondo K Kong DJ Konigsberg J Korytov A Kotwal AV Kovalev A Kraan AC Kraus J Kravchenko I Kreps M Kroll J Krumnack N Kruse M Krutelyov V Kubo T Kuhlmann SE Kuhr T Kusakabe Y Kwang S Laasanen AT Lai S Lami S Lammel S Lancaster M Lander RL Lannon K Lath A Latino G Lazzizzera I LeCompte T Lee J Lee J Lee YJ Lee SW Lefevre R Leonardo N Leone S Levy S Lewis JD Lin C Lin CS Lindgren M Lipeles E Lister A Litvintsev DO Liu T Lockyer NS Loginov A Loreti M Loverre P Lu RS Lucchesi D 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 Manca G Margaroli F Marginean R Marino C Marino CP Martin A Martin M Martin V Martiez M Maruyama T Mastrandrea P Masubuchi T Matsunaga H Mattson ME Mazini R Mazzanti P McCarthy K McFarland KS McIntyre P McNulty R Mehta A Mehtala P Menzemer S Menzione A Merkel P Mesropian C Messina A Miao T Miladinovic N Miles J Miller R Mills C Milnik M Mitra A Mitselmakher G Miyamoto A Moed S Moggi N Mohr B Moore R Morello M Fernandez PM Mulmenstadt J Mukherjee A Muller T Mumford R Murat P Nachtman J Nagano A Naganoma J Nakano I Napier A Necula V Neu C Neubauer MS Nielsen J Nigmanov T Nodulman L Norniella O Nurse E Oh SH Oh YD Oksuzian I Okusawa T Oldeman R Orava R Osterberg K Pagliarone C Palencia E Papadimitriou V Paramonov AA Parks B Pashapour S Patrick J Pauletta G Paulini M Paus C Pellett DE Penzo A Phillips TJ PIACENTINO, Giovanni Maria Piedra J Pinera L Pitts K Plager C Pondrom L Portell X Poukhov O Pounder N Prakoshyn F Pronko A Proudfoot J Ptohos F Punzi G Pursley J Rademacker J Rahaman A Ranjan N Rappoccio S Reisert B Rekovic V Renton P Rescigno M Richter S Rimondi F Ristori L Robson A Rodrigo T Rogers E Rolli S Roser R Rossi M Rossin R Ruiz A Russ J Rusu V Saarikko H Sabik S Safonov A Sakumoto WK Salamanna G Salto O Saltzberg D Sanchez C Santi L Sarkar S Sartori L Sato K Savard P Savoy Navarro A Scheidle T Schlabach P Schmidt EE Schmidt MP Schmitt M Schwarz T Scodellaro L Scott AL Scribano A Scuri F Sedov A Seidel S Seiya Y Semenov A Sexton Kennedy L Sfyrla A Shapiro MD Shears T Shepard PF Sherman D Shimojma M Shochet M Shon Y Shreyber I Sidoti A Sinervo P Sisakyan A Sjolin J Slaughter AJ Slaunwhite J Sliwa K Smith JR Snider FD Snihur R Soderberg M Soha A Somalwar S Sorin V Spalding J Spinella F Spreitzer T Squillacioti P Stanitzki M Staveris Polykalas A St Denis R Stelzer B Stelzer Chilton O Stentz D Strologas J Stuart D Suh JS Sukhanov A Sun H Suzuki T Taffard A Takashima R Takeuchi Y Takikawa K Tanaka M Tanaka R Tecchio M Teng PK Terashi K Thom J Thompson AS Thomson E Tipton P Tiwari V Tkaczyk S Toback D Tokar S Tollefson K Tomura T Tonelli D Torre S Torretta D Tourneur S Trischuk W Tsuchiya R Tsuno S Turini N Ukegawa F Unverhau T Uozumi S Usynin D Vallecorsa S Vanguri R van Remortel N Varganov A Vataga E Vazquez F Velev G Veramendi G Veszpremi V Vidal R Vila I Vilar R Vine T Vollrath I Volobouev I Volpi G Wurthwein F Wagner P Wagner RG Wagner RL Wagner J Wagner W Wallny R Wang SM Warburton A Waschke S Waters D Weinberger M Wester WC Whitehouse B Whiteson D Wicklund AB Wicklund E Williams G Williams HH Wilson P Winer BL Wittich P Wolbers S Wolfe C Wright T Wu X Wynne SM Yagil A Yamamoto K Yamaoka J Yamashita T Yang C Yang UK Yang YC Yao WM Yeh GP Yoh J Yorita K Yoshida T Yu GB Yu I Yu SS Yun JC Zanello L Zanetti A Zaw I Zhang X Zhou J Zucchelli S. mostra contributor esterni nascondi contributor esterni
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