Improved measurement of CP observables in B(+/-)-> DCP(0)K(+/-) decays RID C-5223-2009 RID C-5719-2008

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doi:10.1103/PhysRevD.77.111102

We present a study of the decay B(-)-> D((CP))(0)K(-) and its charge conjugate, where D((CP))(0) is reconstructed in both a non-CP flavor eigenstate and in CP (CP-even and CP-odd) eigenstates, based on a sample of 382 million Upsilon(4S) -> B (B) over bar decays collected with the BABAR detector at the PEP-II e(+)e(-) storage ring. We measure the direct CP asymmetries A(CP +/-) and the ratios of the branching fractions R(CP +/-): A(CP+)=0.27 +/- 0.09(stat) +/- 0.04(syst), A(CP-)=-0.09 +/- 0.09(stat) +/- 0.02(syst), R(CP+)=1.06 +/- 0.10(stat) +/- 0.05(syst), R(CP-)=1.03 +/- 0.10(stat) +/- 0.05(syst). We also express the results in terms of the so-called Cartesian coordinates x(+), x(-), and r(2): x(+)=-0.09 +/- 0.05(stat) +/- 0.02(syst), x(-)=0.10 +/- 0.05(stat) +/- 0.03(syst), r(2)=0.05 +/- 0.07(stat)+/- 0.03(syst). These results will help to better constrain the phase parameter gamma=arg(-V(ud)V(ub)(*)/V(cd)V(cb)(*)) of the Cabibbo-Kobayashi-Maskawa quark mixing matrix.

Titolo:	Improved measurement of CP observables in B(+/-)-> DCP(0)K(+/-) decays RID C-5223-2009 RID C-5719-2008
Autori:	Aubert B Bona M Karyotakis Y Lees JP Poireau V Prencipe E Prudent X Tisserand V Tico JG Grauges E Lopez L Palano A Pappagallo M Eigen G Stugu B Sun L Abrams GS Battaglia M Brown DN Button Shafer J Cahn RN Jacobsen RG Kadyk JA Kerth LT Kolomensky YG Kukartsev G Lynch G Osipenkov IL Ronan MT Tackmann K Tanabe T Wenzel WA Hawkes CM Soni N Watson AT Koch H Schroeder T Walker D Asgeirsson DJ Cuhadar Donszelmann T Fulsom BG Hearty C Mattison TS McKenna JA Barrett M Khan A Saleem M Teodorescu L Blinov VE Bukin AD Buzykaev AR Druzhinin VP Golubev VB Onuchin AP Serednyakov SI Skovpen YI Solodov EP Todyshev KY Bondioli M Curry S Eschrich I Kirkby D Lankford AJ Lund P Mandelkern M Martin EC Stoker DP Abachi S Buchanan C Gary JW Liu F Long O Shen BC Vitug GM Yasin Z Zhang L Sharma V Campagnari C Hong TM Kovalskyi D Mazur MA Richman JD Beck TW Eisner AM Flacco CJ Heusch CA Kroseberg J Lockman WS Schalk T Schumm BA Seiden A Wang L Wilson MG Winstrom LO Cheng CH Doll DA Echenard B Fang F Hitlin DG Narsky I Piatenko T Porter FC Andreassen R Mancinelli G Meadows BT Mishra K Sokoloff MD Blanc F Bloom PC Ford WT Gaz A Hirschauer JF Kreisel A Nagel M Nauenberg U Olivas A Smith JG Ulmer KA Wagner SR Ayad R Gabareen AM Soffer A Toki WH Wilson RJ Altenburg DD Feltresi E Hauke A Jasper H Karbach M Merkel J Petzold A Spaan B Wacker K Klose V Kobel MJ Lacker HM Mader WF Nogowski R Schubert KR Schwierz R Sundermann JE Volk A Bernard D Bonneaud GR Latour E Thiebaux C Verderi M Clark PJ Gradl W Playfer S Watson JE Andreotti M Bettoni D Bozzi C Calabrese R Cecchi A Cibinetto G Franchini P Luppi E Negrini M Petrella A Piemontese L Santoro V Anulli F Baldini Ferroli R Calcaterra A de Sangro R Finocchiaro G Pacetti S Patteri P Peruzzi IM Piccolo M Rama M Zallo A Buzzo A Contri R Lo Vetere M Macri MM Monge MR Passaggio S Patrignani C Robutti E Santroni A Tosi S Chaisanguanthum KS Morii M Dubitzky RS Marks J Schenk S Uwer U Bard DJ Dauncey PD Nash JA Vazquez WP Tibbetts M Behera PK Chai X Charles MJ Mallik U Cochran J Crawley HB Dong L Meyer WT Prell S Rosenberg EI Rubin AE Gao YY Gritsan AV Guo ZJ Lae CK Denig AG Fritsch M Schott G Arnaud N Bequilleux J D'Orazio A Davier M da Costa JF Grosdidier G Hocker A Lepeltier V Le Diberder F Lutz AM Pruvot S Roudeau P Schune MH Serrano J Sordini V Stocchi A Wang WF Wormser G Lange DJ Wright DM Bingham I Burke JP Chavez CA Fry JR Gabathuler E Gamet R Hutchcroft DE Payne DJ Touramanis C Bevan AJ George KA Di Lodovico F Sacco R Sigamani M Cowan G Flaecher HU Hopkins DA Paramesvaran S Salvatore F Wren AC Brown DN Davis CL Alwyn KE Barlow NR Barlow RJ Chia YM Edgar CL Lafferty GD West TJ Yi JI Anderson J Chen C Jawahery A Roberts DA Simi G Tuggle JM Dallapiccola C Hertzbach SS Li X Salvati E Saremi S Cowan R Dujmic D Fisher PH Koeneke K Sciolla G Spitznagel M Taylor F Yamamoto RK Zhao M Mclachlin SE Patel PM Robertson SH Lazzaro A Lombardo V Palombo F Bauer JM Cremaldi L Eschenburg V Godang R Kroeger R Sanders DA Summers DJ Zhao HW Brunet S Cote D Simard M Taras P Viaud FB Nicholson H De Nardo G Lista L Monorchio D Sciacca C Baak MA Raven G Snoek HL Jessop CP Knoepfel KJ LoSecco JM Benelli G Corwin LA Honscheid K Kagan H Kass R Morris JP Rahimi AM Regensburger JJ Sekula SJ Wong QK Blount NL Brau J Frey R Igonkina O Kolb JA Lu M Rahmat R Sinev NB Strom D Strube J Torrence E Castelli G Gagliardi N Margoni M Morandin M Posocco M Rotondo M Simonetto F Stroili R Voci C Sanchez PDA Ben Haim E Briand H Calderini G Chauveau J David P Del Buono L Hamon O Leruste P Ocariz J Perez A Prendki J Gladney L Biasini M Covarelli R Manoni E Angelini C Batignani G Bettarini S Carpinelli M Cervelli A Forti F Giorgi MA LUSIANI, Alberto Marchiori G Morganti M Neri N Paoloni E Rizzo G Walsh JJ Biesiada J Pegna DL Lu C Olsen J Smith AJS Telnov AV Baracchini E Cavoto G del Re D Di Marco E Faccini R Ferrarotto F Ferroni F Gaspero M Jackson PD Gioi LL Mazzoni MA Morganti S Piredda G Polci F Renga F Voena C Ebert M Hartmann T Schroder H Waldi R Adye T Franek B Olaiya EO Roethel W Wilson FF Emery S Escalier M Esteve L Gaidot A Ganzhur SF de Monchenault GH Kozanecki W Vasseur G Yeche C Zito M Chen XR Liu H Park W Purohit MV White RM Wilson JR Allen MT Aston D Bartoldus R Bechtle P Benitez JF Cenci R Coleman JP Convery MR Dingfelder JC Dorfan J Dubois Felsmann GP Dunwoodie W Field RC Gowdy SJ Graham MT Grenier P Hast C Innes WR Kaminski J Kelsey MH Kim H Kim P Kocian ML Leith DWGS Li S Lindquist B Luitz S Luth V Lynch HL MacFarlane DB Marsiske H Messner R Muller DR Neal H Nelson S O'Grady CP Ofte I Perazzo A Perl M Ratcliff BN Roodman A Salnikov AA Schindler RH Schwiening J Snyder A Su D Sullivan MK Suzuki K Swain SK Thompson JM Va'vra J Wagner AP Weaver M West CA Wisniewski WJ Wittgen M Wright DH Wulsin HW Yarritu AK Yi K Young CC Ziegler V Burchat PR Edwards AJ Majewski SA Miyashita TS Petersen BA Wilden L Ahmed S Alam MS Bula R Ernst JA Pan B Saeed MA Zain SB Spanier SM Wogsland BJ Eckmann R Ritchie JL Ruland AM Schilling CJ Schwitters RF Drummond BW Izen JM Lou XC Ye S Bianchi F Gamba D Pelliccioni M Bomben M Bosisio L Cartaro C Della Ricca G Lanceri L Vitale L Azzolini V Lopez March N Martinez Vidal F Milanes DA Oyanguren A Albert J Banerjee S Bhuyan B Choi HHF Hamano K Kowalewski R Lewczuk MJ Nugent IM Roney JM Sobie RJ Gershon TJ Harrison PF Ilic J Latham TE Mohanty GB Band HR Chen X Dasu S Flood KT Pan Y Pierini M Prepost R Vuosalo CO Wu SL mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2008
Rivista:	PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevD.77.111102
Handle:	http://hdl.handle.net/11384/5817
Appare nelle tipologie:	1.1 Articolo in rivista

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