Limits on the production of narrow t(t)over-bar resonances in p(p)over-bar collisions at root s=1.96 TeV

Aaltonen, T; Adelman, J; Akimoto, T; Albrow, Mg; Gonzalez, Ba; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Aoki, M; Apollinari, G; Apresyan, A; Arisawa, T; Artikov, A; Ashmanskas, W; Attal, A; Aurisano, 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; Beauchemin, Ph; Bedeschi, F; Bednar, P; Behari, S; Bellettini, G; Bellinger, J; Belloni, A; Benjamin, D; Beretvas, A; Beringer, J; Berry, T; Bhatti, A; Binkley, M; Bisello, D; Bizjak, I; Blair, Re; Blocker, C; Blumenfeld, B; Bocci, A; Bodek, A; Boisvert, V; Bolla, G; Bolshov, A; Bortoletto, D; Boudreau, J; Boveia, A; Brau, B; Bridgeman, A; Brigliadori, L; Bromberg, C; Brubaker, E; Budagov, J; Budd, Hs; Budd, S; Burkett, K; Busetto, G; Bussey, P; Buzatu, A; Byrum, Kl; Cabrera, S; 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; 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doi:10.1103/PhysRevD.77.051102

We search for evidence of resonant top quark pair production in 955 pb(-1) of p (p) over bar collisions at root s = 1: 96 TeV recorded with the CDF II detector at the Fermilab Tevatron. For fully reconstructed candidate t (t) over bar events triggered on leptons with large transverse momentum and containing at least one identified b-quark jet, we compare the invariant mass spectrum of t (t) over bar pairs to the expected superposition of standard model t (t) over bar, non-t (t) over bar backgrounds, and a simple resonance model based on a sequential Z' boson. We establish upper limits for sigma(p (p) over bar -> Z')center dot Br(Z' -> t (t) over bar) in the Z' mass interval from 450 GeV/c(2) to 900 GeV=c(2). A topcolor leptophobic Z' is ruled out below 720 GeV=c(2), and the cross section of any narrow Z'-like state decaying to t (t) over bar is found to be less than 0.64 pb at 95% C. L. for M(Z') above 700 GeV/c(2). RI Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; Prokoshin, Fedor/E-2795-2012; Azzi, Patrizia/H-5404-2012

Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevD.77.051102
Codice identificativo ISI:	WOS:000254544200002
Codice identificativo Scopus:	2-s2.0-41149158277
Handle:	http://hdl.handle.net/11695/4142
Abstract:	We search for evidence of resonant top quark pair production in 955 pb(-1) of p (p) over bar collisions at root s = 1: 96 TeV recorded with the CDF II detector at the Fermilab Tevatron. For fully reconstructed candidate t (t) over bar events triggered on leptons with large transverse momentum and containing at least one identified b-quark jet, we compare the invariant mass spectrum of t (t) over bar pairs to the expected superposition of standard model t (t) over bar, non-t (t) over bar backgrounds, and a simple resonance model based on a sequential Z' boson. We establish upper limits for sigma(p (p) over bar -> Z')center dot Br(Z' -> t (t) over bar) in the Z' mass interval from 450 GeV/c(2) to 900 GeV=c(2). A topcolor leptophobic Z' is ruled out below 720 GeV=c(2), and the cross section of any narrow Z'-like state decaying to t (t) over bar is found to be less than 0.64 pb at 95% C. L. for M(Z') above 700 GeV/c(2). RI Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; Prokoshin, Fedor/E-2795-2012; Azzi, Patrizia/H-5404-2012
Titolo:	Limits on the production of narrow t(t)over-bar resonances in p(p)over-bar collisions at root s=1.96 TeV
Autori:	Aaltonen T Adelman J Akimoto T Albrow MG Gonzalez BA Amerio S Amidei D Anastassov A Annovi A Antos J Aoki M Apollinari G Apresyan A Arisawa T Artikov A Ashmanskas W Attal A Aurisano 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 Beauchemin PH Bedeschi F Bednar P Behari S Bellettini G Bellinger J Belloni A Benjamin D Beretvas A Beringer J Berry T Bhatti A Binkley M Bisello D Bizjak I Blair RE Blocker C Blumenfeld B Bocci A Bodek A Boisvert V Bolla G Bolshov A Bortoletto D Boudreau J Boveia A Brau B Bridgeman A Brigliadori L Bromberg C Brubaker E Budagov J Budd HS Budd S Burkett K Busetto G Bussey P Buzatu A Byrum KL Cabrera S 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 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 Ciobanu CI Ciocci MA Clark A Clark D Compostella G Convery ME Conway J Cooper B Copic K Cordelli M Cortiana G 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 Lentdecker G De Lorenzo G Dell'Orso M Demortier L Deng J Deninno M De Pedis D Derwent PF 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 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 Forrester S Franklin M Freeman JC Furic I Gallinaro M Galyardt J Garberson F Garcia JE Garfinkel AF Gerberich H Gerdes D Giagu S Giakoumopolou V Giannetti P Gibson K Gimmell JL Ginsburg CM Giokaris N Giordani M Giromini P Giunta M Glagolev V Glenzinski D Gold M Goldschmidt N Golossanov A Gomez G Gomez Ceballos G Goncharov M Gonaalez 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 Hamilton A Han BY Han JY Handler R Happacher F Hara K Hare D Hare M Harper S Harr RF Harris RM 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 CS Hirschbuehl D Hocker A Hou S Houlden M Hsu SC Huffman BT Hughes RE Husemann U Huston J Incandela J Introzzi G Iori M Ivanov A Iyutin B James E Jayatilaka B Jeans D Jeon EJ Jindariani S Johnson W Jones M Joo KK Jun SY Jung JE Junk TR Kagan M Kamon T Kar D Karchin PE Kato 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 Koay SA Kondo K Kong DJ Konigsberg J Korytov A Kotwal AV Kraus J Kreps M Kroll J Krumnack N Kruse M Krutelyov V Kubo T Kuhlmann SE Kuhr T Kulkarni NP 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 Linacre J Lindgren M Lipeles E Lister A Litvintsev DO Liu T Lockyer NS Loginov A Loreti M Lovas L Lu RS 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 A Margaroli F Marino C Marino CP Martin A Martin M Martin V Martinez M Martinez Ballarin R Maruyama T Mastrandrea P Masubuchi T Mattson ME Mazzanti P 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 Miyake H Moed S Moggi N Moon CS Moore R Morello M 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 Neu C Neubauer MS Nielsen J Nodulman L Norman M Norniella O Nurse E Oh SH Oh YD Oksuzian I Okusawa T Oldeman R 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 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 Ramakrishnan V Ranjan N Redondo I 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 Roy P Ruiz A Russ J Rusu V Saarikko H Safonov A Sakumoto WK Salamanna G Salto O Santi L Sarkar S Sartori L Sato K Savard P Savoy Navarro A Scheidle T Schlabach P Schmidt EE Schmidt MA 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 Sfyria A Shalhout SZ Shapiro MD Shears T Shepard PF Sherman D Shimojima M Shochet M Shon Y Shreyber I Sidoti A Sinervo P Sisakyan A 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 Denis RS Stelzer B Stelzer Chilton O Stentz D Strologas J Stuart D Suh JS Sukhanov A Sun H 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 Tiwari V Tkaczyk S Toback D Tokar S Tollefson K Tomura T Tonelli D Torre S Torretta D Tourneur S Trischuk W Tu Y Turini N Ukegawa F Uozumi S Vallecorsa S van Remortel N Varganov A Vataga E Vazquez F Velev G Vellidis C Veszpremi V Vidal M Vidal R Vila I Vilar R Vine T Vogel M Volobouev I Volpi G Wurthwein F Wagner P Wagner RG Wagner RL Wagner J Wagner W Wakisaka T Wallny R Wang SM Warburton A 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 Zheng Y Zucchelli S. mostra contributor esterni nascondi contributor esterni
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