Study of B→πlν and B→ρlν decays and determination of |Vub
| Title: | Study of B→πlν and B→ρlν decays and determination of |Vub |
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| Authors: | Sanchez PD; Lees JP; Poireau V; Prencipe E; Tisserand V; Tico JG; Grauges E; Martinelli M; Palano A; Pappagallo M; Eigen G; Stugu B; Sun L; Battaglia M; Brown DN; Hooberman B; Kerth LT; Kolomensky YG; Lynch G; Osipenkov IL; Tanabe T; Hawkes CM; Soni N; Watson AT; Koch H; Schroeder T; Asgeirsson DJ; Hearty C; Mattison TS; McKenna JA; Khan A; Randle Conde A; Blinov VE; Buzykaev AR; Druzhinin VP; Golubev VB; Onuchin AP; Serednyakov SI; Skovpen YI; Solodov EP; Todyshev KY; Yushkov AN; Bondioli M; Curry S; Kirkby D; Lankford AJ; Mandelkern M; Martin EC; Stoker DP; Atmacan H; Gary JW; Liu F; Long O; Vitug GM; Yasin Z; Sharma V; Campagnari C; Hong TM; Kovalskyi D; Richman JD; Eisner AM; Heusch CA; Kroseberg J; Lockman WS; Martinez AJ; Schalk T; Schumm BA; Seiden A; Winstrom LO; Cheng CH; Doll DA; Echenard B; Hitlin DG; Ongmongkolkul P; Porter FC; Rakitin AY; Andreassen R; Dubrovin MS; Mancinelli G; Meadows BT; Sokoloff MD; Bloom PC; Ford WT; Gaz A; Hirschauer JF; Nagel M; Nauenberg U; Smith JG; Wagner SR; Ayad R; Toki WH; Hauke A; Jasper H; Karbach TM; Merkel J; Petzold A; Spaan B; Wacker K; Kobel MJ; Schubert KR; Schwierz R; Bernard D; Verderi M; Clark PJ; Playfer S; Watson JE; Andreotti M; Bettoni D; Bozzi C; Calabrese R; Cecchi A; Cibinetto G; Fioravanti E; Franchini P; Luppi E; Munerato M; Negrini M; Petrella A; Piemontese L; Baldini Ferroli R; Calcaterra A; de Sangro R; Finocchiaro G; Nicolaci M; Pacetti S; Patteri P; Peruzzi IM; Piccolo M; Rama M; Zallo A; Contri R; Guido E; Lo Vetere M; Monge MR; Passaggio S; Patrignani C; Robutti E; Tosi S; Bhuyan B; Morii M; Adametz A; Marks J; Schenk S; Uwer U; Bernlochner FU; Lacker HM; Lueck T; Volk A; Dauncey PD; Tibbetts M; Behera PK; Mallik U; Chen C; Cochran J; Crawley HB; Dong L; Meyer WT; Prell S; Rosenberg EI; Rubin AE; Gao YY; Gritsan AV; Guo ZJ; Arnaud N; Davier M; Derkach D; da Costa JF; Grosdidier G; Le Diberder F; Lutz AM; Malaescu B; Perez A; Roudeau P; Schune MH; Serrano J; Sordini V; Stocchi A; Wang L; Wormser G; Lange DJ; Wright DM; Bingham I; Burke JP; Chavez CA; Coleman JP; Fry JR; Gabathuler E; Gamet R; Hutchcroft DE; Payne DJ; Touramanis C; Bevan AJ; Di Lodovico F; Sacco R; Sigamani M; Cowan G; Paramesvaran S; Wren AC; Davis CL; Denig AG; Fritsch M; Gradl W; Hafner A; Alwyn KE; Bailey D; Barlow RJ; Jackson G; Lafferty GD; West TJ; Anderson J; Cenci R; Jawahery A; Roberts DA; Simi G; Tuggle JM; Dallapiccola C; Salvati E; Cowan R; Dujmic D; Fisher PH; Sciolla G; Yamamoto RK; Zhao M; Patel PM; Robertson SH; Schram M; Biassoni P; Lazzaro A; Lombardo V; Palombo F; Stracka S; Cremaldi L; Godang R; Kroeger R; Sonnek P; Summers DJ; Zhao HW; Nguyen X; Simard M; Taras P; De Nardo G; Monorchio D; Onorato G; Sciacca C; Raven G; Snoek HL; Jessop CP; Knoepfel KJ; LoSecco JM; Wang WF; Corwin LA; Honscheid K; Kass R; Morris JP; Rahimi AM; Blount NL; Brau J; Frey R; Igonkina O; Kolb JA; Rahmat R; Sinev NB; Strom D; Strube J; Torrence E; Castelli G; Feltresi E; Gagliardi N; Margoni M; Morandin M; Posocco M; Rotondo M; Simonetto F; Stroili R; Ben Haim E; Bonneaud GR; Briand H; Chauveau J; Hamon O; Leruste P; Marchiori G; Ocariz J; Prendki J; Sitt S; Biasini M; Manoni E; Angelini C; Batignani G; Bettarini S; Calderini G; Carpinelli M; Cervelli A; Forti F; Giorgi MA; LUSIANI, Alberto; Neri N; Paoloni E; Rizzo G; Walsh JJ; Pegna DL; Lu C; Olsen J; Smith AJS; Telnov AV; Anulli F; Baracchini E; Cavoto G; Faccini R; Ferrarotto F; Ferroni F; Gaspero M; Gioi LL; Mazzoni MA; Piredda G; Renga F; Ebert M; Hartmann T; Leddig T; Schroder H; Waldi R; Adye T; Franek B; Olaiya EO; Wilson FF; Emery S; de Monchenault GH; Vasseur G; Yeche C; Zito M; Allen MT; Aston D; Bard DJ; Bartoldus R; Benitez JF; Cartaro C; Convery MR; Dingfelder JC; Dorfan J; Dubois Felsmann GP; Dunwoodie W; Field RC; Sevilla MF; Fulsom BG; Gabareen AM; Graham MT; Grenier P; Hast C; Innes WR; Kelsey MH; Kim H; Kim P; Kocian ML; Leith DWGS; Li S; Lindquist B; Luitz S; Luth V; Lynch HL; MacFarlane DB; Marsiske H; Muller DR; Neal H; Nelson S; O'Grady CP; Ofte I; Perl M; Ratcliff BN; Roodman A; Salnikov AA; Santoro V; Schindler RH; Schwiening J; Snyder A; Su D; Sullivan MK; Suzuki K; Thompson JM; Va'vra J; Wagner AP; Weaver M; West CA; Wisniewski WJ; Wittgen M; Wright DH; Wulsin HW; Yarritu AK; Young CC; Ziegler V; Chen XR; Park W; Purohit MV; White RM; Wilson JR; Sekula SJ; Bellis M; Burchat PR; Edwards AJ; Miyashita TS; Ahmed S; Alam MS; Ernst JA; Pan B; Saeed MA; Zain SB; Guttman N; Soffer A; Lund P; Spanier SM; Eckmann R; Ritchie JL; Ruland AM; Schilling CJ; Schwitters RF; Wray BC; Izen JM; Lou XC; Bianchi F; Gamba D; Pelliccioni M; Bomben M; Della Ricca G; Lanceri L; Vitale L; Azzolini V; Lopez March N; Martinez Vidal F; Milanes DA; Oyanguren A; Albert J; Banerjee S; Choi HHF; Hamano K; King GJ; Kowalewski R; Lewczuk MJ; Nugent IM; Roney JM; Sobie RJ; Gershon TJ; Harrison PF; Ilic J; Latham TE; Mohanty GB; Puccio EMT; Band HR; Chen X; Dasu S; Flood KT; Pan Y; Prepost R; Vuosalo CO; Wu SL |
| Contributors: | Sanchez, Pd; Lees, Jp; Poireau, V; Prencipe, E; Tisserand, V; Tico, Jg; Grauges, E; Martinelli, M; Palano, A; Pappagallo, M; Eigen, G; Stugu, B; Sun, L; Battaglia, M; Brown, Dn; Hooberman, B; Kerth, Lt; Kolomensky, Yg; Lynch, G; Osipenkov, Il; Tanabe, T; Hawkes, Cm; Soni, N; Watson, At; Koch, H; Schroeder, T; Asgeirsson, Dj; Hearty, C; Mattison, T; Mckenna, Ja; Khan, A; Randle Conde, A; Blinov, Ve; Buzykaev, Ar; Druzhinin, Vp; Golubev, Vb; Onuchin, Ap; Serednyakov, Si; Skovpen, Yi; Solodov, Ep; Todyshev, Ky; Yushkov, An; Bondioli, M; Curry, S; Kirkby, D; Lankford, Aj; Mandelkern, M; Martin, Ec; Stoker, Dp; Atmacan, H; Gary, Jw; Liu, F; Long, O; Vitug, Gm; Yasin, Z; Sharma, V; Campagnari, C; Hong, Tm; Kovalskyi, D; Richman, Jd; Eisner, Am; Heusch, Ca; Kroseberg, J; Lockman, W; Martinez, Aj; Schalk, T; Schumm, Ba; Seiden, A; Winstrom, Lo; Cheng, Ch; Doll, Da; Echenard, B; Hitlin, Dg; Ongmongkolkul, P; Porter, Fc; Rakitin, Ay; Andreassen, R; Dubrovin, M; Mancinelli, G; Meadows, Bt; Sokoloff, Md; Bloom, Pc; Ford, Wt; Gaz, A; Hirschauer, Jf; Nagel, M; Nauenberg, U; Smith, Jg; Wagner, Sr; Ayad, R; Toki, Wh; Hauke, A; Jasper, H; Karbach, Tm; Merkel, J; Petzold, A; Spaan, B; Wacker, K; Kobel, Mj; Schubert, Kr |
| Publication Year: | 2011 |
| Collection: | Scuola Normale Superiore: CINECA IRIS |
| Subject Terms: | Settore FIS/01 - Fisica Sperimentale |
| Description: | We present an analysis of exclusive charmless semileptonic B-meson decays based on 377 x 10(6) B (B) over bar pairs recorded with the BABAR detector at the Y(4S) resonance. We select four event samples corresponding to the decay modes B(0) -> pi(-)l(+)v, B(+) -> pi(0)l(+)v, B(0) -> rho(-)l(+)v, and B+ -> rho(0)l(+)v and find the measured branching fractions to be consistent with isospin symmetry. Assuming isospin symmetry, we combine the two B -> pi lv samples, and similarly the two B -> rho lv samples, and measure the branching fractions B(B(0) -> pi(-)l(+)v) = (1.41 +/- 0.05 +/- 0.07) x 10(-4) and B(B(0) -> rho(-)l(+)v) = (1.75 +/- 0.15 +/- 0.27) x 10(-4), where the errors are statistical and systematic. We compare the measured distribution in q(2), the momentum transfer squared, with predictions for the form factors from QCD calculations and determine the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V(ub)vertical bar. Based on the measured partial branching fraction for B -> pi lv in the range q(2) < 12 GeV(2) and the most recent QCD light-cone sum-rule calculations, we obtain vertical bar V(ub)vertical bar=(3.78 +/- 0.13(-0.40)(+0.55)10(-3), where the errors refer to the experimental and theoretical uncertainties. From a simultaneous fit to the data over the full q(2) range and the FNAL/MILC lattice QCD results, we obtain vertical bar V(ub)vertical bar=(2.95 +/- 0.31) x 10(-3) from B -> pi lv, where the error is the combined experimental and theoretical uncertainty. |
| Document Type: | article in journal/newspaper |
| Language: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000287034700003; volume:83; issue:3; numberofpages:45; journal:PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY; https://hdl.handle.net/11384/4458 |
| DOI: | 10.1103/PhysRevD.83.032007 |
| Availability: | https://hdl.handle.net/11384/4458; https://doi.org/10.1103/PhysRevD.83.032007 |
| Rights: | info:eu-repo/semantics/openAccess ; license:Non specificata ; license uri:iris.PUB01 |
| Accession Number: | edsbas.DB87D281 |
| Database: | BASE |