Measurements of branching fractions and CP-violating asymmetries in B-0 ->pi(+)pi(-), K+ pi(-), K+K- decays RID C-2728-2008 RID C-5223-2009 RID C-5719-2008 RID D-1189-2011 RID D-1055-2009 RID A-2675-2009

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van Bibber, K; Wright, Dm; Bevan, Aj; Fry, Jr; Gabathuler, E; Gamet, R; George, M; Kay, M; Payne, Dj; Sloane, Rj; Touramanis, C; Aspinwall, Ml; Bowerman, Da; Dauncey, Pd; Egede, U; Eschrich, I; Morton, Gw; Nash, Ja; Sanders, P; Smith, D; Taylor, Gp; Back, Jj; Bellodi, G; Dixon, P; Harrison, Pf; Potter, Rjl; Shorthouse, Hw; Strother, P; Vidal, Pb; Cowan, G; Flaecher, Hu; George, S; Green, Mg; Kurup, A; Marker, Ce; Mcmahon, Tr; Ricciardi, S; Salvatore, F; Vaitsas, G; Winter, Ma; Brown, D; Davis, Cl; Allison, J; Barlow, Rj; Forti, Ac; Jackson, F; Lafferty, Gd; Lyon, Aj; Savvas, N; Weatherall, Jh; Williams, Jc; Farbin, A; Jawahery, A; Lillard, V; Roberts, Da; Schieck, Jr; Blaylock, G; Dallapiccola, C; Flood, Kt; Hertzbach, Ss; Kofler, R; Koptchev, Vb; Moore, Tb; Staengle, H; Willocq, S; Brau, B; Cowan, R; Sciolla, G; Taylor, F; Yamamoto, Rk; Milek, M; Patel, Pm; Palombo, F; Bauer, Jm; Cremaldi, L; Eschenburg, V; Kroeger, R; Reidy, J; Sanders, Da; Summers, Dj; Hast, C; Taras, P; Nicholson, H; 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doi:10.1103/PhysRevLett.89.281802

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We present measurements of branching fractions and CP-violating asymmetries for two-body neutral (B) over bar meson decays to charged pions and kaons based on a sample of about 88x10(6) Y(4S)-->B (B) over bar decays. From a time-independent fit we measure the charge-averaged branching fractions B(B-0-->pi(+)pi(-))=(4.7+/-0.6+/-0.2)x10(-6), B(B-0-->K(+)pi(-))=(17.9+/-0.9+/-0.7)x10(-6), and the direct CP-violating charge asymmetry A(Kpi)=-0.102+/-0.050+/-0.016 [-0.188,-0.016], where the ranges in square brackets indicate the 90% confidence intervals. From a time-dependent fit we measure the B-0-->pi(+)pi(-) CP-violating parameters S-pipi=0.02+/-0.34+/-0.05 [-0.54,+0.58] and C-pipi=-0.30+/-0.25+/-0.04 [-0.72,+0.12].

Titolo:	Measurements of branching fractions and CP-violating asymmetries in B-0 ->pi(+)pi(-), K+ pi(-), K+K- decays RID C-2728-2008 RID C-5223-2009 RID C-5719-2008 RID D-1189-2011 RID D-1055-2009 RID A-2675-2009
Autori:	Aubert B Boutigny D Gaillard JM Hicheur A Karyotakis Y Lees JP Robbe P Tisserand V Zghiche A Palano A Pompili A Chen JC Qi ND Rong G Wang P Zhu YS Eigen G Ofte I Stugu B Abrams GS Borgland AW Breon AB Brown DN Button Shafer J Cahn RN Charles E Gill MS Gritsan AV Groysman Y Jacobsen RG Kadel RW Kadyk J Kerth LT Kolomensky YG Kral JF LeClerc C Levi ME Lynch G Mir LM Oddone PJ Orimoto TJ Pripstein M Roe NA Romosan A Ronan MT Shelkov VG Telnov AV Wenzel WA Harrison TJ Hawkes CM Knowles DJ O'Neale SW Penny RC Watson AT Watson NK Deppermann T Goetzen K Koch H Lewandowski B Peters K Schmuecker H Steinke M Barlow NR Bhimji W Boyd JT Chevalier N Clark PJ Cottingham WN Mackay C Wilson FF Abe K Hearty C Mattison TS McKenna JA Thiessen D Jolly S McKemey AK Blinov VE Bukin AD Buzykaev AR Golubev VB Ivanchenko VN Korol AA Kravchenko EA Onuchin AP Serednyakov SI Skovpen YI Yushkov AN Best D Chao M Kirkby D Lankford AJ Mandelkern M McMahon S Stoker DP Buchanan C Chun S Hadavand HK Hill EJ MacFarlane DB Paar H Prell S Rahatlou S Raven G Schwanke U Sharma V Berryhill JW Campagnari C Dahmes B Hart PA Kuznetsova N Levy SL Long O Lu A Mazur MA Richman JD Verkerke W Beringer J Eisner AM Grothe M Heusch CA Lockman WS Pulliam T Schalk T Schmitz RE Schumm BA Seiden A Turri M Walkowiak W Williams DC Wilson MG Chen E Dubois Felsmann GP Dvoretskii A Hitlin DG Porter FC Ryd A Samuel A Yang S Jayatilleke S Mancinelli G Meadows BT Sokoloff MD Barillari T Bloom P Ford WT Nauenberg U Olivas A Rankin P Roy J Smith JG van Hoek WC Zhang L Harton JL Hu T Krishnamurthy M Soffer A Toki WH Wilson RJ Zhang J Altenburg D Brandt T Brose J Colberg T Dickopp M Dubitzky RS Hauke A Maly E Muller Pfefferkorn R Otto S Schubert KR Schwierz R Spaan B Wilden L Bernard D Bonneaud GR Brochard F Cohen Tanugi J Ferrag S T'Jampens S Thiebaux C Vasileiadis G Verderi M Anjomshoaa A Bernet R Khan A Lavin D Muheim F Playfer S Swain JE Tinslay J Falbo M Borean C Bozzi C Piemontese L Sarti A Treadwell E Anulli F Baldini Ferroli R Calcaterra A de Sangro R Falciai D Finocchiaro G Patteri P Peruzzi IM Piccolo M Zallo A Bagnasco S Buzzo A Contri R Crosetti G Lo Vetere M Macri M Monge MR Passaggio S Pastore FC Patrignani C Robutti E Santroni A Tosi S Bailey S Morii M Bartoldus R Grenier GJ Mallik U Cochran J Crawley HB Lamsa J Meyer WT Rosenberg EI Yi J Davier M Grosdidier G Hocker A Lacker HM Laplace S Le Diberder F Lepeltier V Lutz AM Petersen TC Plaszczynski S Schune MH Tantot L Trincaz Duvoid S Wormser G Bionta RM Brigljevic V Lange DJ van Bibber K Wright DM Bevan AJ Fry JR Gabathuler E Gamet R George M Kay M Payne DJ Sloane RJ Touramanis C Aspinwall ML Bowerman DA Dauncey PD Egede U Eschrich I Morton GW Nash JA Sanders P Smith D Taylor GP Back JJ Bellodi G Dixon P Harrison PF Potter RJL Shorthouse HW Strother P Vidal PB Cowan G Flaecher HU George S Green MG Kurup A Marker CE McMahon TR Ricciardi S Salvatore F Vaitsas G Winter MA Brown D Davis CL Allison J Barlow RJ Forti AC Jackson F Lafferty GD Lyon AJ Savvas N Weatherall JH Williams JC Farbin A Jawahery A Lillard V Roberts DA Schieck JR Blaylock G Dallapiccola C Flood KT Hertzbach SS Kofler R Koptchev VB Moore TB Staengle H Willocq S Brau B Cowan R Sciolla G Taylor F Yamamoto RK Milek M Patel PM Palombo F Bauer JM Cremaldi L Eschenburg V Kroeger R Reidy J Sanders DA Summers DJ Hast C Taras P Nicholson H Cartaro C Cavallo N De Nardo G Fabozzi F Gatto C Lista L Paolucci P Piccolo D Sciacca C LoSecco JM Alsmiller JRG Gabriel TA Brau J Frey R Iwasaki M Potter CT Sinev NB Strom D Torrence E Colecchia F Dorigo A Galeazzi F Margoni M Morandin M Posocco M Rotondo M Simonetto F Stroili R Voci C Benayoun M Briand H Chauveau J David P de la Vaissiere C Del Buono L Hamon O Leruste P Ocariz J Pivk M Roos L Stark J Manfredi PF Re V Speziali V Gladney L Guo QH Panetta J Angelini C Batignani G Bettarini S Bondioli M Bucci F Calderini G Campagna E Carpinelli M Forti F Giorgi MA LUSIANI, Alberto Marchiori G Martinez Vidal F Morganti M Neri N Paoloni E Rama M Rizzo G Sandrelli F Triggiani G Walsh J Haire M Judd D Paick K Turnbull L Wagoner DE Albert J Danielson N Elmer P Lu C Miftakov V Olsen J Schaffner SF Smith AJS Tumanov A Varnes EW Bellini F Cavoto G del Re D Faccini R Ferrarotto F Ferroni F Leonardi E Mazzoni MA Morganti S Piredda G Tehrani FS Serra M Voena C Christ S Wagner G Waldi R Adye T De Groot N Franek B Geddes NI Gopal GP Xella SM Aleksan R Emery S Gaidot A Giraud PF de Monchenault GH Kozanecki W Langer M London GW Mayer B Schott G Serfass B Vasseur G Yeche C Zito M Purohit MV Weidemann AW Yumiceva FX Adam I Aston D Berger N Boyarski AM Convery MR Coupal DP Dong D Dorfan J Dunwoodie W Field RC Glanzman T Gowdy SJ Grauges E Haas T Hadig T Halyo V Himel T Hryn'ova T Huffer ME Innes WR Jessop CP Kelsey MH Kim P Kocian ML Langenegger U Leith DWGS Luitz S Luth V Lynch HL Marsiske H Menke S Messner R Muller DR O'Grady CP Ozcan VE Perazzo A Perl M Petrak S Quinn H Ratcliff BN Robertson SH Roodman A Salnikov AA Schietinger T Schindler RH Schwiening J Simi G Snyder A Soha A Spanier SM Stelzer J Su D Sullivan MK Tanaka HA Va'vra J Wagner SR Weaver M Weinstein AJR Wisniewski WJ Wright DH Young CC Burchat PR Cheng CH Meyer TI Roat C Henderson R Bugg W Cohn H Izen JM Kitayama I Lou XC Bianchi F Bona M Gamba D Bosisio L Della Ricca G Dittongo S Lanceri L Poropat P Vitale L Vuagnin G Panvini RS Banerjee SW Brown CM Fortin D Jackson PD Kowalewski R Roney JM Band HR Dasu S Datta M Eichenbaum AM Hu H Johnson JR Liu R Di Lodovico F Mohapatra A Pan Y Prepost R Scott IJ Sekula SJ von Wimmersperg Toeller JH Wu J Wu SL Yu Z Neal H. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2002
Rivista:	PHYSICAL REVIEW LETTERS
Abstract:	We present measurements of branching fractions and CP-violating asymmetries for two-body neutral (B) over bar meson decays to charged pions and kaons based on a sample of about 88x10(6) Y(4S)-->B (B) over bar decays. From a time-independent fit we measure the charge-averaged branching fractions B(B-0-->pi(+)pi(-))=(4.7+/-0.6+/-0.2)x10(-6), B(B-0-->K(+)pi(-))=(17.9+/-0.9+/-0.7)x10(-6), and the direct CP-violating charge asymmetry A(Kpi)=-0.102+/-0.050+/-0.016 [-0.188,-0.016], where the ranges in square brackets indicate the 90% confidence intervals. From a time-dependent fit we measure the B-0-->pi(+)pi(-) CP-violating parameters S-pipi=0.02+/-0.34+/-0.05 [-0.54,+0.58] and C-pipi=-0.30+/-0.25+/-0.04 [-0.72,+0.12].
Handle:	http://hdl.handle.net/11384/4824
Appare nelle tipologie:	1.1 Articolo in rivista

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