| Title: |
Precision Measurement of the Ratio B(ϒ(3S)→τ^{+}τ^{-})/B(ϒ(3S)→μ^{+}μ^{-}). |
| Authors: |
Lees, JP; Poireau, V; Tisserand, V; Grauges, E; Palano, A; Eigen, G; Brown, DN; Kolomensky, YG; Fritsch, M; Koch, H; Schroeder, T; Cheaib, R; Hearty, C; Mattison, TS; McKenna, JA; So, RY; Blinov, VE; Buzykaev, AR; Druzhinin, VP; Golubev, VB; Kozyrev, EA; Kravchenko, EA; Onuchin, AP; Serednyakov, SI; Skovpen, YI; Solodov, EP; Todyshev, KY; Lankford, AJ; Dey, B; Gary, JW; Long, O; Eisner, AM; Lockman, WS; Panduro Vazquez, W; Chao, DS; Cheng, CH; Echenard, B; Flood, KT; Hitlin, DG; Kim, J; Li, Y; Lin, DX; Miyashita, TS; Ongmongkolkul, P; Oyang, J; Porter, FC; Röhrken, M; Huard, Z; Meadows, BT; Pushpawela, BG; Sokoloff, MD; Sun, L; Smith, JG; Wagner, SR; Bernard, D; Verderi, M; Bettoni, D; Bozzi, C; Calabrese, R; Cibinetto, G; Fioravanti, E; Garzia, I; Luppi, E; Santoro, V; Calcaterra, A; de Sangro, R; Finocchiaro, G; Martellotti, S; Patteri, P; Peruzzi, IM; Piccolo, M; Rotondo, M; Zallo, A; Passaggio, S; Patrignani, C; Shuve, BJ; Lacker, HM; Bhuyan, B; Mallik, U; Chen, C; Cochran, J; Prell, S; Gritsan, AV; Arnaud, N; Davier, M; Le Diberder, F; Lutz, AM; Wormser, G; Lange, DJ; Wright, DM; Coleman, JP; Gabathuler, E; Hutchcroft, DE; Payne, DJ; Touramanis, C; Bevan, AJ; Di Lodovico, F; Sacco, R; Cowan, G; Banerjee, S; Davis, CL; Denig, AG; Gradl, W; Griessinger, K; Hafner, A; Schubert, KR; Barlow, RJ; Lafferty, GD; Cenci, R; Jawahery, A; Roberts, DA; Cowan, R; Robertson, SH; Seddon, RM; Neri, N; Palombo, F; Cremaldi, L; Godang, R; Summers, DJ; Taras, P; De Nardo, G; Sciacca, C; Raven, G; Jessop, CP; LoSecco, JM; Honscheid, K; Kass, R; Gaz, A; Margoni, M; Posocco, M; Simi, G; Simonetto, F; Stroili, R; Akar, S; Ben-Haim, E; Bomben, M; Bonneaud, GR; Calderini, G; Chauveau, J; Marchiori, G; Ocariz, J; Biasini, M; Manoni, E; Rossi, A; Batignani, G; Bettarini, S; Carpinelli, M; Casarosa, G; Chrzaszcz, M; Forti, F; Giorgi, MA; Lusiani, A; Oberhof, B; Paoloni, E; Rama, M; Rizzo, G; Walsh, JJ; Zani, L; Smith, AJS; Anulli, F; Faccini, R; Ferrarotto, F; Ferroni, F; Pilloni, A; Piredda, G; Bünger, C; Dittrich, S; Grünberg, O; Heß, M; Leddig, T; Voß, C; Waldi, R; Adye, T; Wilson, FF; Emery, S; Vasseur, G; Aston, D; Cartaro, C; Convery, MR; Dorfan, J; Dunwoodie, W; Ebert, M; Field, RC; Fulsom, BG; Graham, MT; Hast, C; Innes, WR; Kim, P; Leith, DWGS; Luitz, S; MacFarlane, DB; Muller, DR; Neal, H; Ratcliff, BN; Roodman, A; Sullivan, MK; Va'vra, J; Wisniewski, WJ; Purohit, MV; Wilson, JR; Randle-Conde, A; Sekula, SJ; Ahmed, H; 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; Albert, J; Beaulieu, A; Bernlochner, FU; King, GJ; Kowalewski, R; Lueck, T; Nugent, IM; Roney, JM; Sibidanov, A; Sobie, RJ; Tasneem, N; Gershon, TJ; Harrison, PF; Latham, TE; Prepost, R; Wu, SL; BABAR Collaboration |
| Publisher Information: |
American Physical Society |
| Publication Year: |
2020 |
| Collection: |
Queen Mary University of London: Queen Mary Research Online (QMRO) |
| Description: |
We report on a precision measurement of the ratio R_{τμ}^{ϒ(3S)}=B(ϒ(3S)→τ^{+}τ^{-})/B(ϒ(3S)→μ^{+}μ^{-}) using data collected with the BABAR detector at the SLAC PEP-II e^{+}e^{-} collider. The measurement is based on a 28 fb^{-1} data sample collected at a center-of-mass energy of 10.355 GeV corresponding to a sample of 122 million ϒ(3S) mesons. The ratio is measured to be R_{τμ}^{ϒ(3S)}=0.966±0.008_{stat}±0.014_{syst} and is in agreement with the standard model prediction of 0.9948 within 2 standard deviations. The uncertainty in R_{τμ}^{ϒ(3S)} is almost an order of magnitude smaller than the only previous measurement. |
| Document Type: |
article in journal/newspaper |
| File Description: |
241801 - ? |
| Language: |
English |
| Relation: |
Phys Rev Lett; https://qmro.qmul.ac.uk/xmlui/handle/123456789/71559 |
| DOI: |
10.1103/PhysRevLett.125.241801 |
| Availability: |
https://qmro.qmul.ac.uk/xmlui/handle/123456789/71559; https://doi.org/10.1103/PhysRevLett.125.241801 |
| Rights: |
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. ; Attribution 3.0 United States ; http://creativecommons.org/licenses/by/3.0/us/ ; © 2020, The Author(s). Published by the American Physical Society |
| Accession Number: |
edsbas.BD27BCD0 |
| Database: |
BASE |