Measurement of the branching fractions of the radiative leptonic decays and at BABAR
Author(s): Lees, JP; Poireau, V; Tisserand, V; Grauges, E; Palano, A; et al
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http://arks.princeton.edu/ark:/88435/pr1kt2h| Abstract: | We perform a measurement of the τ → lγνν¯ (l = e, µ) branching fractions for a minimum photon energy of 10 MeV in the τ rest frame, using 431 fb−1 of e +e − collisions collected at the center-of-mass energy of the Υ (4S) resonance with the BABAR detector at the PEP-II storage rings. We find B(τ → µγνν¯) = (3.69±0.03±0.10)×10−3, and B(τ → eγνν¯) = (1.847±0.015±0.052)×10−2, where the first quoted error is statistical, and the second is systematic. These results are substantially more precise than previous measurements. |
| Publication Date: | Mar-2015 |
| Electronic Publication Date: | 25-Mar-2015 |
| Citation: | Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Stugu, B, Brown, DN, Kerth, LT, Kolomensky, Yu G, Lee, MJ, Lynch, G, Koch, H, Schroeder, T, Hearty, C, Mattison, TS, McKenna, JA, So, RY, Khan, A, Blinov, VE, Buzykaev, AR, Druzhinin, VP, Golubev, VB, Kravchenko, EA, Onuchin, AP, Serednyakov, SI, Skovpen, Yu I, Solodov, EP, Todyshev, K Yu, Lankford, AJ, Dey, B, Gary, JW, Long, O, Franco Sevilla, M, Hong, TM, Kovalskyi, D, Richman, JD, West, CA, Eisner, AM, Lockman, WS, Panduro Vazquez, W, Schumm, BA, Seiden, A, Chao, DS, Cheng, CH, Echenard, B, Flood, KT, Hitlin, DG, Miyashita, TS, Ongmongkolkul, P, Porter, FC, Röhrken, M, Andreassen, R, Huard, Z, Meadows, BT, Pushpawela, BG, Sokoloff, MD, Sun, L, Bloom, PC, Ford, WT, Gaz, A, Smith, JG, Wagner, SR, Ayad, R, Toki, WH, Spaan, B, Bernard, D, Verderi, M, Playfer, S, Bettoni, D, Bozzi, C, Calabrese, R, Cibinetto, G, Fioravanti, E, Garzia, I, Luppi, E, Piemontese, L, Santoro, V, Calcaterra, A, de Sangro, R, Finocchiaro, G, Martellotti, S, Patteri, P, Peruzzi, IM, Piccolo, M, Rama, M, Zallo, A, Contri, R, Monge, MR, Passaggio, S, Patrignani, C, Bhuyan, B, Prasad, V, Adametz, A, Uwer, U, Lacker, HM, Mallik, U, Chen, C, Cochran, J, Prell, S, Ahmed, H, Gritsan, AV, Arnaud, N, Davier, M, Derkach, D, Grosdidier, G, Le Diberder, F, Lutz, AM, Malaescu, B, Roudeau, P, Stocchi, A, Wormser, G, Lange, DJ, Wright, DM, Coleman, JP, Fry, JR, Gabathuler, E, Hutchcroft, DE, Payne, DJ, Touramanis, C, Bevan, AJ, Di Lodovico, F, Sacco, R, Cowan, G, Brown, DN, Davis, CL, Denig, AG, Fritsch, M, Gradl, W, Griessinger, K, Hafner, A, Schubert, KR, Barlow, RJ, Lafferty, GD, Cenci, R, Hamilton, B, Jawahery, A, Roberts, DA, Cowan, R, Cheaib, R, Patel, PM, Robertson, SH, Neri, N, Palombo, F, Cremaldi, L, Godang, R, Summers, DJ, Simard, M, Taras, P, De Nardo, G, Onorato, G, Sciacca, C, Raven, G, Jessop, CP, LoSecco, JM, Honscheid, K, Kass, R, Margoni, M, Morandin, M, Posocco, M, Rotondo, M, Simi, G, Simonetto, F, Stroili, R, Akar, S, Ben-Haim, E, Bomben, M, Bonneaud, GR, Briand, H, Calderini, G, Chauveau, J, Leruste, Ph, Marchiori, G, Ocariz, J, Biasini, M, Manoni, E, Rossi, A, Angelini, C, Batignani, G, Bettarini, S, Carpinelli, M, Casarosa, G, Chrzaszcz, M, Forti, F, Giorgi, MA, Lusiani, A, Oberhof, B, Paoloni, E, Rizzo, G, Walsh, JJ, Lopes Pegna, D, Olsen, J, Smith, AJS, Anulli, F, Faccini, R, Ferrarotto, F, Ferroni, F, Gaspero, M, Pilloni, A, Piredda, G, Bünger, C, Dittrich, S, Grünberg, O, Hess, M, Leddig, T, Voß, C, Waldi, R, Adye, T, Olaiya, EO, Wilson, FF, Emery, S, Vasseur, G, Aston, D, Bard, DJ, Cartaro, C, Convery, MR, Dorfan, J, Dubois-Felsmann, GP, Dunwoodie, W, Ebert, M, Field, RC, Fulsom, BG, Graham, MT, Hast, C, Innes, WR, Kim, P, Leith, DWGS, Lindemann, D, Luitz, S, Luth, V, Lynch, HL, MacFarlane, DB, Muller, DR, Neal, H, Perl, M, Pulliam, T, Ratcliff, BN, Roodman, A, Schindler, RH, Snyder, A, Su, D, Sullivan, MK, Va’vra, J, Wisniewski, WJ, Wulsin, HW, Purohit, MV, Wilson, JR, Randle-Conde, A, Sekula, SJ, Bellis, M, Burchat, PR, Puccio, EMT, Alam, MS, Ernst, JA, Gorodeisky, R, Guttman, N, Peimer, DR, Soffer, A, Spanier, SM, Ritchie, JL, Schwitters, RF, Izen, JM, Lou, XC, Bianchi, F, De Mori, F, Filippi, A, Gamba, D, Lanceri, L, Vitale, L, Martinez-Vidal, F, Oyanguren, A, Villanueva-Perez, P, Albert, J, Banerjee, Sw, Beaulieu, A, Bernlochner, FU, Choi, HHF, King, GJ, Kowalewski, R, Lewczuk, MJ, Lueck, T, Nugent, IM, Roney, JM, Sobie, RJ, Tasneem, N, Gershon, TJ, Harrison, PF, Latham, TE, Band, HR, Dasu, S, Pan, Y, Prepost, R, Wu, SL. (2015). Measurement of the branching fractions of the radiative leptonic decays and at BABAR. Physical Review D, 91 (5), 10.1103/PhysRevD.91.051103 |
| DOI: | doi:10.1103/PhysRevD.91.051103 |
| ISSN: | 1550-7998 |
| EISSN: | 1550-2368 |
| Pages: | 1 - 7 |
| Type of Material: | Journal Article |
| Journal/Proceeding Title: | Physical Review D |
| Version: | Author's manuscript |
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