测量B⁺/⁻→ρ⁺/⁻π⁰和B⁺/⁻→ρ⁰π⁺/⁻衰变中的分支比和电荷不对称性，并寻找B⁰→ρ⁰π⁰。
Measurement of branching fractions and charge asymmetries in B+/--->rho+/-pi0 and B+/--->rho0pi+/- decays, and search for B0-->rho0pi0.
作者信息
Aubert B, Barate R, Boutigny D, Couderc F, Gaillard J-M, Hicheur A, Karyotakis Y, Lees J P, Robbe P, Tisserand V, Zghiche A, Palano A, Pompili A, Chen J C, Qi N D, Rong G, Wang P, Zhu Y S, Eigen G, Ofte I, Stugu B, Abrams G S, Borgland A W, Breon A B, Brown D N, Button-Shafer J, Cahn R N, Charles E, Day C T, Gill M S, Gritsan A V, Groysman Y, Jacobsen R G, Kadel R W, Kadyk J, Kerth L T, Kolomensky Yu G, Kukartsev G, LeClerc C, Levi M E, Lynch G, Mir L M, Oddone P J, Orimoto T J, Pripstein M, Roe N A, Romosan A, Ronan M T, Shelkov V G, Telnov A V, Wenzel W A, Ford K, Harrison T J, Hawkes C M, Knowles D J, Morgan S E, Penny R C, Watson A T, Watson N K, Goetzen K, Held T, Koch H, Lewandowski B, Pelizaeus M, Peters K, Schmuecker H, Steinke M, Boyd J T, Chevalier N, Cottingham W N, Kelly M P, Latham T E, Mackay C, Wilson F F, Abe K, Cuhadar-Donszelmann T, Hearty C, Mattison T S, McKenna J A, Thiessen D, Kyberd P, McKemey A K, Teodorescu L, Blinov V E, Bukin A D, Golubev V B, Ivanchenko V N, Kravchenko E A, Onuchin A P, Serednyakov S I, Skovpen Yu I, Solodov E P, Yushkov A N, Best D, Bruinsma M, Chao M, Kirkby D, Lankford A J, Mandelkern M, Mommsen R K, Roethel W, Stoker D P, Buchanan C, Hartfiel B L, Gary J W, Layter J, Shen B C, Wang K, del Re D, Hadavand H K, Hill E J, MacFarlane D B, Paar H P, Rahatlou Sh, Sharma V, Berryhill J W, Campagnari C, Dahmes B, Levy S L, Long O, Lu A, Mazur M A, Richman J D, Verkerke W, Beck T W, Beringer J, Eisner A M, Heusch C A, Lockman W S, Schalk T, Schmitz R E, Schumm B A, Seiden A, Spradlin P, Turri M, Walkowiak W, Williams D C, Wilson M G, Albert J, Chen E, Dubois-Felsmann G P, Dvoretskii A, Erwin R J, Hitlin D G, Narsky I, Piatenko T, Porter F C, Ryd A, Samuel A, Yang S, Jayatilleke S, Mancinelli G, Meadows B T, Sokoloff M D, Abe T, Blanc F, Bloom P, Chen S, Clark P J, Ford W T, Nauenberg U, Olivas A, Rankin P, Roy J, Smith J G, van Hoek W C, Zhang L, Harton J L, Hu T, Soffer A, Toki W H, Wilson R J, Zhang J, Altenburg D, Brandt T, Brose J, Colberg T, Dickopp M, Dubitzky R S, Hauke A, Lacker H M, Maly E, Müller-Pfefferkorn R, Nogowski R, Otto S, Schubert J, Schubert K R, Schwierz R, Spaan B, Wilden L, Bernard D, Bonneaud G R, Brochard F, Cohen-Tanugi J, Grenier P, Thiebaux Ch, Vasileiadis G, Verderi M, Khan A, Lavin D, Muheim F, Playfer S, Swain J E, Andreotti M, Azzolini V, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Luppi E, Negrini M, Piemontese L, Sarti A, Treadwell E, Baldini-Ferroli R, Calcaterra A, de Sangro R, Falciai D, Finocchiaro G, Patteri P, Piccolo M, Zallo A, Buzzo A, Capra R, Contri R, Crosetti G, Lo Vetere M, Macri M, Monge M R, Passaggio S, Patrignani C, Robutti E, Santroni A, Tosi S, Bailey S, Morii M, Won E, Bhimji W, Bowerman D A, Dauncey P D, Egede U, Eschrich I, Gaillard J R, Morton G W, Nash J A, Taylor G P, Grenier G J, Lee S-J, Mallik U, Cochran J, Crawley H B, Lamsa J, Meyer W T, Prell S, Rosenberg E I, Yi J, Davier M, Grosdidier G, Höcker A, Laplace S, Le Diberder F, Lepeltier V, Lutz A M, Petersen T C, Plaszczynski S, Schune M H, Tantot L, Wormser G, Brigljević V, Cheng C H, Lange D J, Simani M C, Wright D M, Bevan A J, Coleman J P, Fry J R, Gabathuler E, Gamet R, Kay M, Parry R J, Payne D J, Sloane R J, Touramanis C, Back J J, Harrison P F, Shorthouse H W, Vidal P B, Brown C L, Cowan G, Flack R L, Flaecher H U, George S, Green M G, Kurup A, Marker C E, McMahon T R, Ricciardi S, Salvatore F, Vaitsas G, Winter M A, Brown D, Davis C L, Allison J, Barlow N R, Barlow R J, Hart P A, Hodgkinson M C, Jackson F, Lafferty G D, Lyon A J, Weatherall J H, Williams J C, Farbin A, Jawahery A, Kovalskyi D, Lae C K, Lillard V, Roberts D A, Blaylock G, Dallapiccola C, Flood K T, Hertzbach S S, Kofler R, Koptchev V B, Moore T B, Saremi S, Staengle H, Willocq S, Cowan R, Sciolla G, Taylor F, Yamamoto R K, Mangeol D J J, Patel P M, Robertson S H, Lazzaro A, Palombo F, Bauer J M, Cremaldi L, Eschenburg V, Godang R, Kroeger R, Reidy J, Sanders D A, Summers D J, Zhao H W, Brunet S, Cote-Ahern D, Taras P, Nicholson H, Cartaro C, Cavallo N, De Nardo G, Fabozzi F, Gatto C, Lista L, Paolucci P, Piccolo D, Sciacca C, Baak M A, Raven G, LoSecco J M, Gabriel T A, Brau B, Gan K K, Honscheid K, Hufnagel D, Kagan H, Kass R, Pulliam T, Wong Q K, Brau J, Frey R, Igonkina O, Potter C T, Sinev N B, Strom D, Torrence E, Colecchia F, Dorigo A, Galeazzi F, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Tiozzo G, Voci C, Benayoun M, Briand H, Chauveau J, David P, de la Vaissière Ch, Del Buono L, Hamon O, John M J J, Leruste Ph, Ocariz J, Pivk M, Roos L, Stark J, T'Jampens S, Therin G, Manfredi P F, Re V, Behera P K, Gladney L, Guo Q H, Panetta J, Anulli F, Biasini M, Peruzzi I M, Pioppi M, Angelini C, Batignani G, Bettarini S, Bondioli M, Bucci F, Calderini G, Carpinelli M, Del Gamba V, Forti F, Giorgi M A, Lusiani A, Marchiori G, Martinez-Vidal F, Morganti M, Neri N, Paoloni E, Rama M, Rizzo G, Sandrelli F, Walsh J, Haire M, Judd D, Paick K, Wagoner D E, Danielson N, Elmer P, Lu C, Miftakov V, Olsen J, Smith A J S, Tanaka H A, Varnes E W, Bellini F, Cavoto G, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Mazzoni M A, Morganti S, Pierini M, Piredda G, Safai Tehrani F, Voena C, Christ S, Wagner G, Waldi R, Adye T, De Groot N, Franek B, Geddes N I, Gopal G P, Olaiya E O, Xella S M, Aleksan R, Emery S, Gaidot A, Ganzhur S F, Giraud P-F, Hamel de Monchenault G, Kozanecki W, Langer M, Legendre M, London G W, Mayer B, Schott G, Vasseur G, Yeche Ch, Zito M, Purohit M V, Weidemann A W, Yumiceva F X, Aston D, Bartoldus R, Berger N, Boyarski A M, Buchmueller O L, Convery M R, Cristinziani M, Dong D, Dorfan J, Dujmic D, Dunwoodie W, Elsen E E, Field R C, Glanzman T, Gowdy S J, Grauges-Pous E, Hadig T, Halyo V, Hast C, Hryn'ova T, Innes W R, Jessop C P, Kelsey M H, Kim P, Kocian M L, Langenegger U, Leith D W G S, Libby J, Luitz S, Luth V, Lynch H L, Marsiske H, Messner R, Muller D R, O'Grady C P, Ozcan V E, Perazzo A, Perl M, Petrak S, Ratcliff B N, Roodman A, Salnikov A A, Schindler R H, Schwiening J, Simi G, Snyder A, Soha A, Stelzer J, Su D, Sullivan M K, Va'vra J, Wagner S R, Weaver M, Weinstein A J R, Wisniewski W J, Wright D H, Young C C, Burchat P R, Edwards A J, Meyer T I, Petersen B A, Roat C, Ahmed M, Ahmed S, Alam M S, Ernst J A, Saeed M A, Saleem M, Wappler F R, Bugg W, Krishnamurthy M, Spanier S M, Eckmann R, Kim H, Ritchie J L, Schwitters R F, Izen J M, Kitayama I, Lou X C, Ye S, Bianchi F, Bona M, Gallo F, Gamba D, Borean C, Bosisio L, Della Ricca G, Dittongo S, Grancagnolo S, Lanceri L, Poropat P, Vitale L, Vuagnin G, Panvini R S, Banerjee Sw, Brown C M, Fortin D, Jackson P D, Kowalewski R, Roney J M, Band H R, Dasu S, Datta M, Eichenbaum A M, Johnson J R, Kutter P E, Li H, Liu R, Di Lodovico F, Mihalyi A, Mohapatra A K, Pan Y, Prepost R, Sekula S J, von Wimmersperg-Toeller J H, Wu J, Wu S L, Yu Z, Neal H
机构信息
Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France.
出版信息
Phys Rev Lett. 2004 Jul 30;93(5):051802. doi: 10.1103/PhysRevLett.93.051802. Epub 2004 Jul 28.
We present measurements of branching fractions and charge asymmetries in B-meson decays to rho(+)pi(0), rho(0)pi(+), and rho(0)pi(0). The data sample comprises 89x10(6) Upsilon(4S)-->BBmacr; decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find the charge-averaged branching fractions B(B+-->rho(+)pi(0))=[10.9+/-1.9(stat)+/-1.9(syst)]x10(-6) and B(B+-->rho(0)pi(+))=(9.5+/-1.1+/-0.9)x10(-6), and we set a 90% confidence-level upper limit B(B0-->rho(0)pi(0))<2.9x10(-6). We measure the charge asymmetries ACP(pi(0))(rho(+))=0.24+/-0.16+/-0.06 and ACP(pi(+))(rho(0))=-0.19+/-0.11+/-0.02.
我们给出了B介子衰变为ρ⁺π⁰、ρ⁰π⁺和ρ⁰π⁰的分支比和电荷不对称性的测量结果。数据样本包括在SLAC的PEP-II非对称能量B工厂使用BABAR探测器收集的89×10⁶个Υ(4S)→BB⁻衰变事例。我们发现电荷平均分支比B(B⁺→ρ⁺π⁰)=[10.9±1.9(统计)±1.9(系统)]×10⁻⁶以及B(B⁺→ρ⁰π⁺)=(9.5±1.1±0.9)×10⁻⁶，并且我们设定了90%置信水平上限B(B⁰→ρ⁰π⁰)<2.9×10⁻⁶。我们测量了电荷不对称性ACP(π⁰)(ρ⁺)=0.24±0.16±0.06以及ACP(π⁺)(ρ⁰)= -0.19±0.11±0.02。
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