Measurement of the CP-violation parameter sin(2 beta) in B-d(0)/(B)over-bar(d)(0)-> J/psi K-S(0) decays

Abe, F; Akimoto, H; Akopian, A; Albrow, Mg; Amadon, A; Amendolia, Sr; Amidei, D; Antos, J; Aota, S; Apollinari, G; Arisawa, T; Asakawa, T; Ashmanskas, W; Atac, M; Azzi Bacchetta, P; Bacchetta, N; Bagdasarov, S; Bailey, Mw; de Barbaro, P; Barbaro Galtieri, A; Barnes, Ve; Barnett, Ba; Barone, M; Bauer, G; Baumann, T; Bedeschi, F; Behrends, S; Belforte, S; Bellettini, G; Bellinger, J; Benjamin, D; Bensinger, J; Beretvas, A; Berge, Jp; Berryhill, J; Bertolucci, S; Bettelli, S; Bevensee, B; Bhatti, A; Biery, K; Bigongiari, C; Binkley, M; Bisello, D; Blair, Re; Blocker, C; Blusk, S; Bodek, A; Bokhari, W; Bolla, G; Bonushkin, Y; Bortoletto, D; Boudreau, J; Breccia, L; Bromberg, C; Bruner, N; Brunetti, R; Buckley Geer, E; Budd, Hs; Burkett, K; Busetto, G; Byon Wagner, A; Byrum, Kl; Campbell, M; Caner, A; Carithers, W; Carlsmith, D; Cassada, J; Castro, A; Cauz, D; Cerri, A; Chang, Ps; Chang, Pt; Chao, Hy; Chapman, J; Cheng, Mt; Chertok, M; Chiarelli, G; Chiou, Cn; Chlebana, F; Christofek, L; Chu, Ml; 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doi:10.1103/PhysRevLett.81.5513

We present a measurement of the time-dependent asymmetry in the rate for (B)over-bar(d)(0) versus B-d(0) decays to J/psi K-S(0). A nonzero asymmetry would be an indication of CP violation, and within the standard model this may be used to measure the CP-violation parameter sin(2 beta). A total of 198 +/- 17 B-d(0)/(B)over-bar(d)(0) decays were observed in p(p)over-bar collisions at root s = 1.8 TeV by the CDF detector at the Fermilab Tevatron. B-d(0) and (B)over-bar(d)(0) are distinguished by a technique based on charge correlations from hadronization of the b quark. Our analysis results in sin(2 beta) = 1.8 +/- 1.1 (stat) +/- 0.3(syst). RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Nomerotski, Andrei/A-5169-2010; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012

Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevLett.81.5513
Codice identificativo ISI:	WOS:000077659500010
Codice identificativo Scopus:	2-s2.0-6944256944
Handle:	http://hdl.handle.net/11695/6643
Abstract:	We present a measurement of the time-dependent asymmetry in the rate for (B)over-bar(d)(0) versus B-d(0) decays to J/psi K-S(0). A nonzero asymmetry would be an indication of CP violation, and within the standard model this may be used to measure the CP-violation parameter sin(2 beta). A total of 198 +/- 17 B-d(0)/(B)over-bar(d)(0) decays were observed in p(p)over-bar collisions at root s = 1.8 TeV by the CDF detector at the Fermilab Tevatron. B-d(0) and (B)over-bar(d)(0) are distinguished by a technique based on charge correlations from hadronization of the b quark. Our analysis results in sin(2 beta) = 1.8 +/- 1.1 (stat) +/- 0.3(syst). RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Nomerotski, Andrei/A-5169-2010; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
Titolo:	Measurement of the CP-violation parameter sin(2 beta) in B-d(0)/(B)over-bar(d)(0)-> J/psi K-S(0) decays
Autori:	Abe F Akimoto H Akopian A Albrow MG Amadon A Amendolia SR Amidei D Antos J Aota S Apollinari G Arisawa T Asakawa T Ashmanskas W Atac M Azzi Bacchetta P Bacchetta N Bagdasarov S Bailey MW de Barbaro P Barbaro Galtieri A Barnes VE Barnett BA Barone M Bauer G Baumann T Bedeschi F Behrends S Belforte S Bellettini G Bellinger J Benjamin D Bensinger J Beretvas A Berge JP Berryhill J Bertolucci S Bettelli S Bevensee B Bhatti A Biery K Bigongiari C Binkley M Bisello D Blair RE Blocker C Blusk S Bodek A Bokhari W Bolla G Bonushkin Y Bortoletto D Boudreau J Breccia L Bromberg C Bruner N Brunetti R Buckley Geer E Budd HS Burkett K Busetto G Byon Wagner A Byrum KL Campbell M Caner A Carithers W Carlsmith D Cassada J Castro A Cauz D Cerri A Chang PS Chang PT Chao HY Chapman J Cheng MT Chertok M Chiarelli G Chiou CN Chlebana F Christofek L Chu ML Cihangir S Clark AG Cobal M Cocca E Contreras M Conway J Cooper J Cordelli M Costanzo D Couyoumtzelis C Cronin Hennessy D Culbertson R Dagenhart D Daniels T DeJongh F Dell'Agnello S Dell'Orso M Demina R Demortier L Deninno M Derwent PF Devlin T Dittmann JR Donati S Done J Dorigo T Eddy N Einsweiler K Elias JE Ely R Engels E Erdmann W Errede D Errede S Fan Q Feild RG Feng Z Ferretti C Fiori I Flaugher B Foster GW Franklin M Freeman J Friedman J Fukui Y Gadomski S Galeotti S Gallinaro M Ganel O Garcia Sciveres M Garfinkel AF Gay C Geer S Gerdes DW Giannetti P Giokaris N Giromini P Giusti G Gold M Gordon A Goshaw AT Gotra Y Goulianos K Grassmann H Groer L Grosso Pilcher C Guillian G da Costa JG Guo RS Haber C Hafen E Hahn SR Hamilton R Handa T Handler R Happacher F Hara K Hardman AD Harris RM Hartmann F Hauser J Hayashi E Heinrich J Hao W Hinrichsen B Hoffman KD Hohlmann M Holck C Hollebeek R Holloway L Huang Z Huffman BT Hughes R Huston J Huth J Ikeda H Incagli M Incadela J Introzzi G Iwai J Iwata Y James E Jensen H Joshi U Kajfasz E Kambara H Kamon T Kaneko T Karr K Kasha K Kato Y Keaffaber TA Kelley K Kennedy RD Kephart R Kestenbaum D Khazins D Kikuchi T Kim BJ Kim HS Kim SH Kim YK Kirsch L Klimenko S Knoblauch D Koehn P Kongeter A Kondo K Konigsberg J Kordas K Korytov A Kovacs E Kowald W Kroll J Kruse M Kuhlmann SE Kuns E Kurino K Kuwabara T Laasanen AT Lami S Lammel S Lamoureux JI Lancaster M Lanzoni M Latino G LeCompte T Leone S Lewis JD Limon P Lindgren M Liss TM Liu JB Liu YC Lockyer N Long O Loomis C Loreti M Lucchesi D Lukens P Lusin S Lys J Maeshima K Maksimovic P Mangano M Mariotti M Marriner JP Martignon G Martin A Matthews JAJ Mazzanti P McFarland K McIntyre P Melese P Menguzzato M Menzione A Meschi E Metzler S Miao C Miao T Michail G Miller R Minato H Miscetti S Mishina M Miyashita S Moggi N Moore E Morita Y Mukherjee A Muller T Murat P Murgia S Musy M Nakada H Nakaya T Nakano I Nelson C Neuberger D Newman Holmes C Ngan CYP Nodulman L Nomerotski A Oh SH Ohmoto T Ohsugi T Oishi R Okabe M Okusawa T Olsen J Pagliarone C Paoletti R Papadimitriou V Pappas SP Parashar N Parri A Patrick J Pauletta G Paulini M Perazzo A Pescara L Peters MD Phillips TJ PIACENTINO, Giovanni Maria Pillai M Pitts KT Plunkett R Pompos A Pondram L Proudfoot J Ptohos F Punzi G Ragan K Reher D Reischl M Ribon A Rimondi F Ristori L Robertson WJ Rodrigo T Rolli S Rosenson L Roser R Saab T Sakumoto WK Saltzberg D Sansoni A Santi L Sato H Schlabach P Schmidt EE Schmidt MP Scott A Scribano A Segler S Seidel S Seiya Y Semeria F Shah T Shapiro MD Shaw NM Shepard PF Shibayama T Shimojima M Shochet M Siegrist J Sill A Sinervo P Singh P Sliwa K Smith C Snider FD Spalding J Speer T Sphicas P Spinella F Spiropulu M Spiegel L Stanco L Steele J Stefanini A Strohmer R Strologas J Strumia F Stuart D Sumorok K Suzuki J Suzuki T Takahashi T Takano T Takashima R Takikawa K Tanaka M Tannenbaum B Tartarelli F Taylor W Tecchio M Teng PK Teramoto Y Terashi K Tether S Theriot D Thomas TL Thurman Keup R Timko M Tipton P Titov A Tkaczyk S Toback D Tollefson K Tollestrup A Toyoda H Trischuk W de Troconiz JF Truitt S Tseng J Turini N Uchida T Ukegawa F Valls J van den Brink SC Vejcik S Velev G Vidal R Vilar R Vucinic D Wagner RG Wagner RL Wahl J Wallace NB Walsh AM Wang C Wang CH Wang MJ Warburton A Watanabe T Watts T Webb R Wei C Wenzel H Wester WC Wicklund AB Wicklund E Wilkinson R Williams HH Wilson P Winer BL Winn D Wolinski D Wolinski J Worm S Wu X Wyss J Yagil A Yao W Yasuoka K Yeh GP Yeh P Yoh J Yosef C Yoshida T Yu I Zanetti A Zetti F Zucchelli S. mostra contributor esterni nascondi contributor esterni
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