Improved measurement of the Cabibbo-Kobayashi-Maskawa angle alpha using B-0(B)->rho(+)rho(-) decays RID C-2728-2008 RID C-5223-2009 RID C-5719-2008 RID D-1055-2009 RID A-2675-2009

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doi:10.1103/PhysRevLett.95.041805

We present results from an analysis of B-0 ((B) over bar (0)) -> rho(+)p(-) using 232 x 10(6) Upsilon(4S) -> B (B) over bar decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We measure the longitudinal polarization fraction f(L) = 0.978 +/- 0.014(stat)(-0.029)(+0.021)(syst) and the CP-violating parameters S-L = -0.33 +/- 0.24(stat)(-0.14)(+0.08)(syst) and C-L = -0.03 +/- 0.18(stat) +/- 0.09(syst). Using an isospin analysis of B -> rho rho decays, we determine the unitarity triangle parameter alpha. The solution compatible with the standard model is alpha = (100 +/- 13)degrees.

Titolo:	Improved measurement of the Cabibbo-Kobayashi-Maskawa angle alpha using B-0(B)->rho(+)rho(-) decays RID C-2728-2008 RID C-5223-2009 RID C-5719-2008 RID D-1055-2009 RID A-2675-2009
Autori:	Aubert B Barate R Boutigny D Couderc F Karyotakis Y Lees JP Poireau V Tisserand V Zghiche A Grauges E Palano A Pappagallo M 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 Day CT Gill MS Gritsan AV Groysman Y Jacobsen RG Kadel RW Kadyk J Kerth LT Kolomensky YG Kukartsev G Lynch G Mir LM Oddone PJ Orimoto TJ Pripstein M Roe NA Ronan MT Wenzel WA Barrett M Ford KE Harrison TJ Hart AJ Hawkes CM Morgan SE Watson AT Fritsch M Goetzen K Held T Koch H Lewandowski B Pelizaeus M Peters K Schroeder T Steinke M Boyd JT Burke JP Chevalier N Cottingham WN Kelly MP Cuhadar Donszelmann T Hearty C Knecht NS Mattison TS McKenna JA Thiessen D Khan A Kyberd P Teodorescu L Blinov AE Blinov VE Bukin AD Druzhinin VP Golubev VB Ivanchenko VN Kravchenko EA Onuchin AP Serednyakov SI Skovpen YI Solodov EP Yushkov AN Best D Bondioli M Bruinsma M Chao M Eschrich I Kirkby D Lankford AJ Mandelkern M Mommsen RK Roethel W Stoker DP Buchanan C Hartfiel BL Weinstein AJR Foulkes SD Gary JW Long O Shen BC Wang K Zhang L del Re D Hadavand HK Hill EJ MacFarlane DB Paar HP Rahatlou S Sharma V Berryhill JW Campagnari C Cunha A Dahmes B Hong TM Lu A Mazur MA Richman JD Verkerke W Beck TW Eisner AM Flacco CJ Heusch CA Kroseberg J Lockman WS Nesom G Schalk T Schumm BA Seiden A Spradlin P Williams DC Wilson MG Albert J Chen E Dubois Felsmann GP Dvoretskii A Hitlin DG Narsky I Piatenko T Porter FC Ryd A Samuel A Yang S Andreassen R Jayatilleke S Mancinelli G Meadows BT Sokoloff MD Blanc F Bloom P Chen S Ford WT Nauenberg U Olivas A Rankin P Ruddick WO Smith JG Ulmer KA Zhang J Chen A Eckhart EA Harton JL Soffer A Toki WH Wilson RJ Zeng Q Spaan B Altenburg D Brandt T Brose J Dickopp M Feltresi E Hauke A Klose V Lacker HM Maly E Nogowski R Otto S Petzold A Schott G Schubert J Schubert KR Schwierz R Sundermann JE Bernard D Bonneaud GR Grenier P Schrenk S Thiebaux C Vasileiadis G Verderi M Bard DJ Clark PJ Gradl W Muheim F Playfer S Xie Y Andreotti M Azzolini V Bettoni D Bozzi C Calabrese R Cibinetto G Luppi E Negrini M Piemontese L Sarti A Anulli F Baldini Ferroli R Calcaterra A de Sangro R Finocchiaro G Patteri P Peruzzi IM Piccolo M Zallo A Buzzo A Capra R Contri R Lo Vetere M Macri M Monge MR Passaggio S Patrignani C Robutti E Santroni A Tosi S Bailey S Brandenburg G Chaisanguanthum KS Morii M Won E Dubitzky RS Langenegger U Marks J Schenk S Uwer U Bhimji W Bowerman DA Dauncey PD Egede U Gaillard JR Morton GW Nash JA Nikolich MB Taylor GP Charles MJ Grenier GJ Mallik U Mohapatra AK Cochran J Crawley HB Eyges V Meyer WT Prell S Rosenberg EI Rubin AE Yi J Arnaud N Davier M Giroux X Grosdidier G Hocker A Le Diberder F Lepeltier V Lutz AM Petersen TC Pierini M Plaszczynski S Rodier S Roudeau P Schune MH Stocchi A Wormser G Cheng CH Lange DJ Simani MC Wright DM Bevan AJ Chavez CA Coleman JP Forster IJ Fry JR Gabathuler E Gamet R George KA Hutchcroft DE Parry RJ Payne DJ Touramanis C Cormack CM Di Lodovico F Brown CL Cowan G Flack RL Flaecher HU Green MG Jackson PS McMahon TR Ricciardi S Salvatore F Brown D Davis CL Allison J Barlow NR Barlow RJ Hodgkinson MC Lafferty GD Naisbit MT Williams JC Chen C Farbin A Hulsbergen WD Jawahery A Kovalskyi D Lae CK Lillard V Roberts DA Blaylock G Dallapiccola C Hertzbach SS Kofler R Koptchev VB Moore TB Saremi S Staengle H Willocq S Cowan R Koeneke K Sciolla G Sekula SJ Taylor F Yamamoto RK Kim H Patel PM Robertson SH Lazzaro A Lombardo V Palombo F Bauer JM Cremaldi L Eschenburg V Godang R Kroeger R Reidy J Sanders DA Summers DJ Zhao HW Brunet S Cote D Taras P Viaud B Nicholson H Cavallo N De Nardo G Fabozzi F Gatto C Lista L Monorchio D Paolucci P Piccolo D Sciacca C Baak M Bulten H Raven G Snoek HL Wilden L Jessop CP LoSecco JM Allmendinger T Benelli G Gan KK Honscheid K Hufnagel D Jackson PD Kagan H Kass R Pulliam T Rahimi AM Ter Antonyan R Wong QK Brau J Frey R Igonkina O Lu 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 Del Buono L de la Vaissiere C Hamon O John MJJ Leruste P Malcles J Ocariz J Roos L Therin G Behera PK Gladney L Guo QH Panetta J Biasini M Covarelli R Pioppi M Angelini C Batignani G Bettarini S Bucci F Calderini G Carpinelli M Forti F Giorgi MA LUSIANI, Alberto Marchiori G Morganti M Neri N Paoloni E Rama M Rizzo G Simi G Walsh J Haire M Judd D Paick K Wagoner DE Biesiada J Danielson N Elmer P Lau YP Lu C Olsen J Smith AJS Telnov AV Bellini F Cavoto G D'Orazio A Di Marco E Faccini R Ferrarotto F Ferroni F Gaspero M Li Gioi L Mazzoni MA Morganti S Piredda G Polci F Tehrani FS Voena C Christ S Schroder H Wagner G Waldi R Adye T De Groot N Franek B Gopal GP Olaiya EO Wilson FF Aleksan R Emery S Gaidot A Ganzhur SF Giraud PF Graziani G Hamel de Monchenault G Kozanecki W Legendre M London GW Mayer B Vasseur G Yeche C Zito M Purohit MV Weidemann AW Wilson JR Yumiceva FX Abe T Allen MT Aston D Bartoldus R Berger N Boyarski AM Buchmueller OL Claus R Convery MR Cristinziani M Dingfelder JC Dong D Dorfan J Dujmic D Dunwoodie W Fan S Field RC Glanzman T Gowdy SJ Hadig T Halyo V Hast C Hryn'ova T Innes WR Kazuhito S Kelsey MH Kim P Kocian ML Leith DWGS Libby J Luitz S Luth V Lynch HL Marsiske H Messner R Muller DR O'Grady CP Ozcan VE Perazzo A Perl M Ratcliff BN Roodman A Salnikov AA Schindler RH Schwiening J Snyder A Soha A Stelzer J Strube J Su D Sullivan MK Thompson JM Va'vra J Wagner SR Weaver M Wisniewski WJ Wittgen M Wright DH Yarritu AK Young CC Burchat PR Edwards AJ Majewski SA Petersen BA Roat C Ahmed M Ahmed S Alam MS Ernst JA Saeed MA Saleem M Wappler FR Bugg W Krishnamurthy M Spanier SM Eckmann R Ritchie JL Satpathy A Schwitters RF Izen JM Kitayama I Lou XC Ye S Bianchi F Bona M Gallo F Gamba D Bomben M Bosisio L Cartaro C Cossutti F Della Ricca G Dittongo S Grancagnolo S Lanceri L Poropat P Vitale L Vuagnin G Martinez Vidal F Panvini RS Banerjee S Bhuyan B Brown CM Fortin D Hamano K Kowalewski R Roney JM Sobie RJ Back JJ Harrison PF Latham TE Mohanty GB Band HR Chen X Cheng B Dasu S Datta M Eichenbaum AM Flood KT Graham M Hollar JJ Johnson JR Kutter PE Li H Liu R Mellado B Mihalyi A Pan Y Prepost R Tan P von Wimmersperg Toeller JH Wu J Wu SL Yu Z Greene MG Neal H. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2005
Rivista:	PHYSICAL REVIEW LETTERS
Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevLett.95.041805
Handle:	http://hdl.handle.net/11384/4375
Appare nelle tipologie:	1.1 Articolo in rivista

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