Skip to main content
eScholarship
Open Access Publications from the University of California

UC Irvine

UC Irvine Previously Published Works bannerUC Irvine

Improved measurement of B+ --> rho+ rho0 and determination of the quark-mixing phase angle alpha.

  • Author(s): Aubert, B;
  • Karyotakis, Y;
  • Lees, JP;
  • Poireau, V;
  • Prencipe, E;
  • Prudent, X;
  • Tisserand, V;
  • Garra Tico, J;
  • Grauges, E;
  • Lopez, L;
  • Palano, A;
  • Pappagallo, M;
  • Eigen, G;
  • Stugu, B;
  • Sun, L;
  • Battaglia, M;
  • Brown, DN;
  • Kerth, LT;
  • Kolomensky, Yu G;
  • Lynch, G;
  • Osipenkov, IL;
  • Tackmann, K;
  • Tanabe, T;
  • Hawkes, CM;
  • Soni, N;
  • Watson, AT;
  • Koch, H;
  • Schroeder, T;
  • Asgeirsson, DJ;
  • Fulsom, BG;
  • Hearty, C;
  • Mattison, TS;
  • McKenna, JA;
  • Barrett, M;
  • Khan, A;
  • Randle-Conde, A;
  • Blinov, VE;
  • Bukin, AD;
  • Buzykaev, AR;
  • Druzhinin, VP;
  • Golubev, VB;
  • Onuchin, AP;
  • Serednyakov, SI;
  • Skovpen, Yu I;
  • Solodov, EP;
  • Todyshev, K Yu;
  • Bondioli, M;
  • Curry, S;
  • Eschrich, I;
  • Kirkby, D;
  • Lankford, AJ;
  • Lund, P;
  • Mandelkern, M;
  • Martin, EC;
  • Stoker, DP;
  • Abachi, S;
  • Buchanan, C;
  • Atmacan, H;
  • Gary, JW;
  • Liu, F;
  • Long, O;
  • Vitug, GM;
  • Yasin, Z;
  • Zhang, L;
  • Sharma, V;
  • Campagnari, C;
  • Hong, TM;
  • Kovalskyi, D;
  • Mazur, MA;
  • Richman, JD;
  • Beck, TW;
  • Eisner, AM;
  • Heusch, CA;
  • Kroseberg, J;
  • Lockman, WS;
  • Martinez, AJ;
  • Schalk, T;
  • Schumm, BA;
  • Seiden, A;
  • 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;
  • Bloom, PC;
  • Ford, WT;
  • Gaz, A;
  • Hirschauer, JF;
  • Nagel, M;
  • Nauenberg, U;
  • Smith, JG;
  • Wagner, SR;
  • Ayad, R;
  • Soffer, A;
  • Toki, WH;
  • Wilson, RJ;
  • Feltresi, E;
  • Hauke, A;
  • Jasper, H;
  • Karbach, M;
  • Merkel, J;
  • Petzold, A;
  • Spaan, B;
  • Wacker, K;
  • Kobel, MJ;
  • Nogowski, R;
  • Schubert, KR;
  • Schwierz, R;
  • Volk, A;
  • Bernard, D;
  • Bonneaud, GR;
  • Latour, E;
  • Verderi, M;
  • Clark, PJ;
  • 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;
  • Baldini-Ferroli, R;
  • Calcaterra, A;
  • de Sangro, R;
  • Finocchiaro, G;
  • 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;
  • Chaisanguanthum, KS;
  • Morii, M;
  • Adametz, A;
  • Marks, J;
  • Schenk, S;
  • Uwer, U;
  • Bernlochner, FU;
  • Klose, V;
  • Lacker, HM;
  • Bard, DJ;
  • Dauncey, PD;
  • 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;
  • Arnaud, N;
  • Béquilleux, J;
  • D'Orazio, A;
  • Davier, M;
  • Firmino da Costa, J;
  • Grosdidier, G;
  • Le Diberder, F;
  • Lepeltier, V;
  • Lutz, AM;
  • Pruvot, S;
  • Roudeau, P;
  • Schune, MH;
  • Serrano, J;
  • Sordini, V;
  • Stocchi, A;
  • 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;
  • Clarke, CK;
  • Di Lodovico, F;
  • Sacco, R;
  • Sigamani, M;
  • Cowan, G;
  • Paramesvaran, S;
  • Wren, AC;
  • Brown, DN;
  • Davis, CL;
  • Denig, AG;
  • Fritsch, M;
  • Gradl, W;
  • Hafner, A;
  • Alwyn, KE;
  • Bailey, D;
  • Barlow, RJ;
  • Jackson, G;
  • Lafferty, GD;
  • West, TJ;
  • Yi, JI;
  • Anderson, J;
  • Chen, C;
  • Jawahery, A;
  • Roberts, DA;
  • Simi, G;
  • Tuggle, JM;
  • Dallapiccola, C;
  • Salvati, E;
  • Saremi, S;
  • Cowan, R;
  • Dujmic, D;
  • Fisher, PH;
  • Henderson, SW;
  • Sciolla, G;
  • Spitznagel, M;
  • Yamamoto, RK;
  • Zhao, M;
  • Patel, PM;
  • Robertson, SH;
  • Schram, M;
  • Lazzaro, A;
  • Lombardo, V;
  • Palombo, F;
  • Stracka, S;
  • Bauer, JM;
  • Cremaldi, L;
  • Godang, R;
  • Kroeger, R;
  • Summers, DJ;
  • Zhao, HW;
  • Simard, M;
  • Taras, P;
  • Nicholson, H;
  • De Nardo, G;
  • Lista, L;
  • Monorchio, D;
  • Onorato, G;
  • Sciacca, C;
  • Raven, G;
  • Snoek, HL;
  • Jessop, CP;
  • Knoepfel, KJ;
  • Losecco, JM;
  • Wang, WF;
  • 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;
  • Del Amo Sanchez, P;
  • Ben-Haim, E;
  • Briand, H;
  • Chauveau, J;
  • Hamon, O;
  • Leruste, Ph;
  • Ocariz, J;
  • Perez, A;
  • Prendki, J;
  • Sitt, S;
  • Gladney, L;
  • Biasini, M;
  • Manoni, E;
  • Angelini, C;
  • Batignani, G;
  • Bettarini, S;
  • Calderini, G;
  • Carpinelli, M;
  • Cervelli, A;
  • Forti, F;
  • Giorgi, MA;
  • Lusiani, A;
  • Marchiori, G;
  • Morganti, M;
  • Neri, N;
  • Paoloni, E;
  • Rizzo, G;
  • Walsh, JJ;
  • Lopes Pegna, D;
  • Lu, C;
  • Olsen, J;
  • Smith, AJS;
  • Telnov, AV;
  • Anulli, F;
  • Baracchini, E;
  • Cavoto, G;
  • Faccini, R;
  • Ferrarotto, F;
  • Ferroni, F;
  • Gaspero, M;
  • Jackson, PD;
  • Li Gioi, L;
  • Mazzoni, MA;
  • Morganti, S;
  • Piredda, G;
  • Renga, F;
  • Voena, C;
  • Ebert, M;
  • Hartmann, T;
  • Schröder, H;
  • Waldi, R;
  • Adye, T;
  • Franek, B;
  • Olaiya, EO;
  • Wilson, FF;
  • Emery, S;
  • Esteve, L;
  • Hamel de Monchenault, G;
  • Kozanecki, W;
  • Vasseur, G;
  • Yèche, Ch;
  • Zito, M;
  • Chen, XR;
  • Liu, H;
  • Park, W;
  • Purohit, MV;
  • White, RM;
  • Wilson, JR;
  • Allen, MT;
  • Aston, D;
  • Bartoldus, R;
  • Benitez, JF;
  • Cenci, R;
  • Coleman, JP;
  • Convery, MR;
  • Dingfelder, JC;
  • Dorfan, J;
  • Dubois-Felsmann, GP;
  • Dunwoodie, W;
  • Field, RC;
  • Gabareen, AM;
  • 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;
  • 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;
  • Miyashita, TS;
  • Ahmed, S;
  • Alam, MS;
  • 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;
  • 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, Sw;
  • Bhuyan, B;
  • 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;
  • BABAR Collaboration
  • et al.
Abstract

We present improved measurements of the branching fraction B, the longitudinal polarization fraction f{L}, and the direct CP asymmetry A{CP} in the B meson decay channel B;{+}-->rho;{+}rho;{0}. The data sample was collected with the BABAR detector at SLAC. The results are B(B;{+}-->rho;{+}rho;{0})=(23.7+/-1.4+/-1.4) x 10;{-6}, f{L}=0.950+/-0.015+/-0.006, and A{CP}=-0.054+/-0.055+/-0.010, where the uncertainties are statistical and systematic, respectively. Based on these results, we perform an isospin analysis and determine the Cabibbo-Kobayashi-Maskawa phase angle alpha=arg(-V{td}V{tb};/V{ud}V{ub}) to be (92.4{-6.5};{+6.0}) degrees.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Main Content
For improved accessibility of PDF content, download the file to your device.
Current View