Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV using soft electron b-tagging

Aaltonen, T; Adelman, J; Akimoto, T; Gonzalez, Ba; 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; Badgett, W; Barbaro Galtieri, A; Barnes, Ve; Barnett, Ba; Barria, P; Bartos, P; Bartsch, V; Bauer, G; Beauchemin, Ph; 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, Re; 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, Hs; Budd, S; Burke, S; Burkett, K; Busetto, G; Bussey, P; Buzatu, A; Byrum, Kl; 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; 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Yang, Uk; Yang, Yc; Yao, Wm; Yeh, Gp; Yi, K; Yoh, J; Yorita, K; Yoshida, T; Yu, Gb; Yu, I; Yu, Ss; Yun, Jc; Zanello, L; Zanetti, A; Zhang, X; Zheng, Y; Zucchelli, S.

doi:10.1103/PhysRevD.81.092002

We present a measurement of the top-quark pair-production cross section in p (p) over bar collisions at root s = 1.96 TeV using a data sample corresponding to 1.7 fb(-1) of integrated luminosity collected with the Collider Detector at Fermilab. We reconstruct t (t) over bar events in the lepton + jets channel, consisting of e nu + jets and mu nu + jets final states. The dominant background is the production of W bosons in association with multiple jets. To suppress this background, we identify electrons from the semileptonic decay of heavy-flavor jets ("soft electron tags''). From a sample of 2196 candidate events, we obtain 120 tagged events with a background expectation of 51 +/- 3 events, corresponding to a cross section of sigma(t (t) over bar) = 7.8 +/- 2.4(stat) +/- 1.6(syst) +/- 0.5(lumi) pb. We assume a top-quark mass of 175 GeV/c(2). This is the first measurement of the t (t) over bar cross section with soft electron tags in run II of the Tevatron. RI De Cecco, Sandro/B-1016-2012; Robson, Aidan/G-1087-2011; St.Denis, Richard/C-8997-2012; Prokoshin, Fedor/E-2795-2012; Ruiz, Alberto/E-4473-2011

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11695/5410

Digital Object Identifier (DOI):	10.1103/PhysRevD.81.092002
Codice identificativo ISI:	WOS:000278145100006
Codice identificativo Scopus:	2-s2.0-77953198366
Handle:	http://hdl.handle.net/11695/5410
Abstract:	We present a measurement of the top-quark pair-production cross section in p (p) over bar collisions at root s = 1.96 TeV using a data sample corresponding to 1.7 fb(-1) of integrated luminosity collected with the Collider Detector at Fermilab. We reconstruct t (t) over bar events in the lepton + jets channel, consisting of e nu + jets and mu nu + jets final states. The dominant background is the production of W bosons in association with multiple jets. To suppress this background, we identify electrons from the semileptonic decay of heavy-flavor jets ("soft electron tags''). From a sample of 2196 candidate events, we obtain 120 tagged events with a background expectation of 51 +/- 3 events, corresponding to a cross section of sigma(t (t) over bar) = 7.8 +/- 2.4(stat) +/- 1.6(syst) +/- 0.5(lumi) pb. We assume a top-quark mass of 175 GeV/c(2). This is the first measurement of the t (t) over bar cross section with soft electron tags in run II of the Tevatron. RI De Cecco, Sandro/B-1016-2012; Robson, Aidan/G-1087-2011; St.Denis, Richard/C-8997-2012; Prokoshin, Fedor/E-2795-2012; Ruiz, Alberto/E-4473-2011
Titolo:	Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV using soft electron b-tagging
Autori:	Aaltonen T Adelman J Akimoto T Gonzalez BA 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 Badgett W Barbaro Galtieri A Barnes VE Barnett BA Barria P Bartos P Bartsch V Bauer G Beauchemin PH 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 RE 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 HS Budd S Burke S Burkett K Busetto G Bussey P Buzatu A Byrum KL 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 SH Chen YC Chertok M Chiarelli G Chlachidze G Chlebana F Cho K Chokheli D Chou JP Choudalakis G Chuang SH Chung K Chung WH Chung YS Chwalek T Ciobanu CI Ciocci M Clark A Clark D Compostella G Convery ME Conway J Cordelli M Cortiana G Cox CA Cox DJ Crescioli F Almenar CC Cuevas J Culbertson R Cully JC 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 PF Di Canto A di Giovanni GP Dionisi C Di Ruzza B Dittmann JR 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 HC Farrington S Fedorko WT Feild RG Feindt M Fernandez JP Ferrazza C Field R Flanagan G Forrest R Frank MJ Franklin M Freeman JC Furic I Gallinaro M Galyardt J Garberson F Garcia JE Garfinkel AF Garosi P Genser K Gerberich H Gerdes D Gessler A Giagu S Giakoumopoulou V Giannetti P Gibson K Gimmell JL Ginsburg CM 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 Gonzalez O Gorelov I Goshaw AT Goulianos K Gresele A Grinstein S Grosso Pilcher C Group RC Grundler U da Costa JG Gunay Unalan Z Haber C Hahn K Hahn SR Halkiadakis E Han BY Han JY Happacher F Hara K Hare D Hare M Harper S Harr RF Harris RM Hartz M Hatakeyama K Hays C Heck M Heijboer A Heinrich J Henderson C Herndon M Heuser J Hewamanage S Hidas D Hill CS Hirschbuehl D Hocker A Hou S Houlden M Hsu SC Huffman BT Hughes RE Husemann U Hussein M Huston J Incandela J Introzzi G Iori M Ivanov A James E Jang D Jayatilaka B Jeon EJ Jha MK Jindariani S Johnson W Jones M Joo KK Jun SY Jung JE Junk TR Kamon T Kar D Karchin PE Kato Y Kephart R Ketchum W Keung J Khotilovich V Kilminster B Kim DH Kim HS Kim HW Kim JE Kim MJ Kim SB Kim SH Kim YK Kimura N Kirsch L Klimenko S Knuteson B Ko BR Kondo K Kong DJ Konigsberg J Korytov A Kotwal AV Kreps M Kroll J Krop D Krumnack N Kruse M Krutelyov V Kubo T Kuhr T Kulkarni NP Kurata M Kwang S Laasanen AT Lami S Lammel S Lancaster M Lander RL Lannon K Lath A Latino G Lazzizzera I LeCompte T Lee E Lee HS Lee SW Leone S Lewis JD Lin CS Linacre J Lindgren M Lipeles E Lister A Litvintsev DO Liu C Liu T Lockyer NS 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 CP Martin A Martin V Martinez M Martinez Ballarin R Maruyama T Mastrandrea P Masubuchi T Mathis M Mattson ME Mazzanti P McFarland KS 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 Moed S Moggi N Mondragon MN Moon CS Moore R Morello MJ Morlock J Fernandez PM Mulmenstadt J Mukherjee A Muller T 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 MS Neubauer S Nielsen J Nodulman L Norman M Norniella O Nurse E Oakes L Oh SH Oh YD Oksuzian I Okusawa T Orava R Osterberg K Griso SP Pagliarone C Palencia E Papadimitriou V Papaikonomou A Paramonov AA Parks B Pashapour S Patrick J Pauletta G Paulini M Paus C Peiffer T Pellett DE Penzo A Phillips TJ PIACENTINO, Giovanni Maria 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 WK Salto O Santi L Sarkar S Sartori L Sato K Savoy Navarro A Schlabach P Schmidt A Schmidt EE Schmidt MA Schmidt MP 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 SZ Shears T Shepard PF Shimojima M Shiraishi S Shochet M Shon Y Shreyber I Simonenko A Sinervo P Sisakyan A Slaughter AJ Slaunwhite J Sliwa K Smith JR Snider FD Snihur R Soha A Somalwar S Sorin V Spreitzer T Squillacioti P Stanitzki M St Denis R Stelzer B Stelzer Chilton O Stentz D Strologas J Strycker GL Suh JS Sukhanov A Suslov I Suzuki T Taffard A Takashima R Takeuchi Y Tanaka R Tecchio M Teng PK Terashi K Thom J Thompson AS Thompson GA Thomson E Tipton P Ttito Guzman P Tkaczyk S Toback D Tokar S Kollefson K Tomura T Tonelli D Torre S Torretta D Totaro P Tourneur S Trovato M Tsai SY Tu Y Turini N Ukegawa F Vallecorsa S van Remortel N Varganov A Vataga E Vazquez F Velev G Vellidis C Vidal M Vidal R Vila I Vilar R Vine T Vogel M Volobouev I Volpi G Wagner P Wagner RG Wagner RL Wagner W Wagner Kuhr J Wakisaka T Wallny R Wang SM Warburton A Waters D Weinberger M Weinelt J Wester WC Whitehouse B Whiteson D Wicklund AB Wicklund E Wilbur S Williams G Williams HH Wilson P Winer BL Wittich P Wolbers S Wolfe C Wright T Wu X Wurthwein F Xie S Yagil A Yamamoto K Yamaoka J Yang UK Yang YC Yao WM Yeh GP Yi K Yoh J Yorita K Yoshida T Yu GB Yu I Yu SS Yun JC Zanello L Zanetti A Zhang X Zheng Y Zucchelli S. mostra contributor esterni nascondi contributor esterni
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