Precision Measurement of the Ratio B (ϒ (3S) →τ+τ-) / B (ϒ (3S) →μ+μ-)

J. P. Lees; V. Poireau; V. Tisserand; E. Grauges; A. Palano; G. Eigen; D. N. Brown; Yu G. Kolomensky; M. Fritsch; H. Koch; T. Schroeder; R. Cheaib; C. Hearty; T. S. Mattison; J. A. McKenna; R. Y. So; V. E. Blinov; A. R. Buzykaev; V. P. Druzhinin; V. B. Golubev; E. A. Kozyrev; E. A. Kravchenko; A. P. Onuchin; S. I. Serednyakov; Yu I. Skovpen; E. P. Solodov; K. Yu Todyshev; A. J. Lankford; B. Dey; J. W. Gary; O. Long; A. M. Eisner; W. S. Lockman; W. Panduro Vazquez; D. S. Chao; C. H. Cheng; B. Echenard; K. T. Flood; D. G. Hitlin; J. Kim; Y. Li; D. X. Lin; T. S. Miyashita; P. Ongmongkolkul; J. Oyang; F. C. Porter; M. Röhrken; Z. Huard; B. T. Meadows; B. G. Pushpawela; M. D. Sokoloff; L. Sun; J. G. Smith; S. R. Wagner; D. Bernard; M. Verderi; D. Bettoni; C. Bozzi; R. Calabrese; G. Cibinetto; E. Fioravanti; I. Garzia; E. Luppi; V. Santoro; A. Calcaterra; R. De Sangro; G. Finocchiaro; S. Martellotti; P. Patteri; I. M. Peruzzi; M. Piccolo; M. Rotondo; A. Zallo; S. Passaggio; C. Patrignani; B. J. Shuve; H. M. Lacker; B. Bhuyan; U. Mallik; C. Chen; J. Cochran; S. Prell; A. V. Gritsan; N. Arnaud; M. Davier; F. Le Diberder; A. M. Lutz; G. Wormser; D. J. Lange; D. M. Wright; J. P. Coleman; E. Gabathuler; D. E. Hutchcroft; D. J. Payne; C. Touramanis; A. J. Bevan; F. Di Lodovico; R. Sacco; G. Cowan; Sw Banerjee; D. N. Brown; C. L. Davis; A. G. Denig; W. Gradl; K. Griessinger; A. Hafner; K. R. Schubert; R. J. Barlow; G. D. Lafferty; R. Cenci; A. Jawahery; D. A. Roberts; R. Cowan; S. H. Robertson; R. M. Seddon; N. Neri; F. Palombo; L. Cremaldi; R. Godang; D. J. Summers; P. Taras; G. De Nardo; C. Sciacca; G. Raven; C. P. Jessop; J. M. Losecco; K. Honscheid; R. Kass; A. Gaz; M. Margoni; M. Posocco; G. Simi; F. Simonetto; R. Stroili; S. Akar; E. Ben-Haim; M. Bomben; G. R. Bonneaud; G. Calderini; J. Chauveau; G. Marchiori; J. Ocariz; M. Biasini; E. Manoni; A. Rossi; G. Batignani; S. Bettarini; M. Carpinelli; G. Casarosa; M. Chrzaszcz; F. Forti; M. A. Giorgi; A. Lusiani; B. Oberhof; E. Paoloni; M. Rama; G. Rizzo; J. J. Walsh; L. Zani; A. J.S. Smith; F. Anulli; R. Faccini; F. Ferrarotto; F. Ferroni; A. Pilloni; G. Piredda; C. Bünger; S. Dittrich; O. Grünberg; M. Heß; T. Leddig; C. Voß; R. Waldi; T. Adye; F. F. Wilson; S. Emery; G. Vasseur; D. Aston; C. Cartaro; M. R. Convery; J. Dorfan; W. Dunwoodie; M. Ebert; R. C. Field; B. G. Fulsom; M. T. Graham; C. Hast; W. R. Innes; P. Kim; D. W.G.S. Leith; S. Luitz; D. B. Macfarlane; D. R. Muller; H. Neal; B. N. Ratcliff; A. Roodman; M. K. Sullivan; J. Va'Vra; W. J. Wisniewski; M. V. Purohit; J. R. Wilson; A. Randle-Conde; S. J. Sekula; H. Ahmed; M. Bellis; P. R. Burchat; E. M.T. Puccio; M. S. Alam; J. A. Ernst; R. Gorodeisky; N. Guttman; D. R. Peimer; A. Soffer; S. M. Spanier; J. L. Ritchie; R. F. Schwitters; J. M. Izen; X. C. Lou; F. Bianchi; F. De Mori; A. Filippi; D. Gamba; L. Lanceri; L. Vitale; F. Martinez-Vidal; A. Oyanguren; J. Albert; A. Beaulieu; F. U. Bernlochner; G. J. King; R. Kowalewski; T. Lueck; I. M. Nugent; J. M. Roney; A. Sibidanov; R. J. Sobie; N. Tasneem; T. J. Gershon; P. F. Harrison; T. E. Latham; R. Prepost; S. L. Wu

doi:10.1103/PhysRevLett.125.241801

Precision Measurement of the Ratio B (ϒ (3S) →τ+τ-) / B (ϒ (3S) →μ+μ-)

J. P. Lees
, V. Poireau
, V. Tisserand
, E. Grauges
, A. Palano
, G. Eigen
, D. N. Brown
, Yu G. Kolomensky
, M. Fritsch
, H. Koch
, T. Schroeder
, R. Cheaib
, C. Hearty
, T. S. Mattison
, J. A. McKenna
, R. Y. So
, V. E. Blinov
, A. R. Buzykaev
, V. P. Druzhinin
, V. B. Golubev

E. A. Kozyrev, E. A. Kravchenko, A. P. Onuchin, S. I. Serednyakov, Yu I. Skovpen, E. P. Solodov, K. Yu Todyshev, A. J. Lankford, B. Dey, J. W. Gary, O. Long, A. M. Eisner, W. S. Lockman, W. Panduro Vazquez, D. S. Chao, C. H. Cheng, B. Echenard, K. T. Flood, D. G. Hitlin, J. Kim, Y. Li, D. X. Lin, T. S. Miyashita, P. Ongmongkolkul, J. Oyang, F. C. Porter, M. Röhrken, Z. Huard, B. T. Meadows, B. G. Pushpawela, M. D. Sokoloff, L. Sun, J. G. Smith, S. R. Wagner, D. Bernard, M. Verderi, D. Bettoni, C. Bozzi, R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi, V. Santoro, A. Calcaterra, R. De Sangro, G. Finocchiaro, S. Martellotti, P. Patteri, I. M. Peruzzi, M. Piccolo, M. Rotondo, A. Zallo, S. Passaggio, C. Patrignani, B. J. Shuve, H. M. Lacker, B. Bhuyan, U. Mallik, C. Chen, J. Cochran, S. Prell, A. V. Gritsan, N. Arnaud, M. Davier, F. Le Diberder, A. M. Lutz, G. Wormser, D. J. Lange, D. M. Wright, J. P. Coleman, E. Gabathuler, D. E. Hutchcroft, D. J. Payne, C. Touramanis, A. J. Bevan, F. Di Lodovico, R. Sacco, G. Cowan, Sw Banerjee, D. N. Brown, C. L. Davis, A. G. Denig, W. Gradl, K. Griessinger, A. Hafner, K. R. Schubert, R. J. Barlow, G. D. Lafferty, R. Cenci, A. Jawahery, D. A. Roberts, R. Cowan, S. H. Robertson, R. M. Seddon, N. Neri, F. Palombo, L. Cremaldi, R. Godang, D. J. Summers, P. Taras, G. De Nardo, C. Sciacca, G. Raven, C. P. Jessop, J. M. Losecco, K. Honscheid, R. Kass, A. Gaz, M. Margoni, M. Posocco, G. Simi, F. Simonetto, R. Stroili, S. Akar, E. Ben-Haim, M. Bomben, G. R. Bonneaud, G. Calderini, J. Chauveau, G. Marchiori, J. Ocariz, M. Biasini, E. Manoni, A. Rossi, G. Batignani, S. Bettarini, M. Carpinelli, G. Casarosa, M. Chrzaszcz, F. Forti, M. A. Giorgi, A. Lusiani, B. Oberhof, E. Paoloni, M. Rama, G. Rizzo, J. J. Walsh, L. Zani, A. J.S. Smith, F. Anulli, R. Faccini, F. Ferrarotto, F. Ferroni, A. Pilloni, G. Piredda, C. Bünger, S. Dittrich, O. Grünberg, M. Heß, T. Leddig, C. Voß, R. Waldi, T. Adye, F. F. Wilson, S. Emery, G. Vasseur, D. Aston, C. Cartaro, M. R. Convery, J. Dorfan, W. Dunwoodie, M. Ebert, R. C. Field, B. G. Fulsom, M. T. Graham, C. Hast, W. R. Innes, P. Kim, D. W.G.S. Leith, S. Luitz, D. B. Macfarlane, D. R. Muller, H. Neal, B. N. Ratcliff, A. Roodman, M. K. Sullivan, J. Va'Vra, W. J. Wisniewski, M. V. Purohit, J. R. Wilson, A. Randle-Conde, S. J. Sekula, H. Ahmed, M. Bellis, P. R. Burchat, E. M.T. Puccio, M. S. Alam, J. A. Ernst, R. Gorodeisky, N. Guttman, D. R. Peimer, A. Soffer, S. M. Spanier, J. L. Ritchie, R. F. Schwitters, J. M. Izen, X. C. Lou, F. Bianchi, F. De Mori, A. Filippi, D. Gamba, L. Lanceri, L. Vitale, F. Martinez-Vidal, A. Oyanguren, J. Albert, A. Beaulieu, F. U. Bernlochner, G. J. King, R. Kowalewski, T. Lueck, I. M. Nugent, J. M. Roney, A. Sibidanov, R. J. Sobie, N. Tasneem, T. J. Gershon, P. F. Harrison, T. E. Latham, R. Prepost, S. L. Wu

Université Savoie Mont Blanc
University of Barcelona
Università degli studi di Bari Aldo Moro
University of Bergen
Ernest Orlando Lawrence Berkeley National Laboratory
Ruhr-University Bochum
University of British Columbia
Institute of Particle Physics
Budker Institute of Nuclear Physics of the Siberian Branch of the RAS
Novosibirsk State University
Novosibirsk State Technical University
Long Beach VA and University of California
University of California, Riverside
University of California at Santa Cruz
California Institute of Technology
University of Cincinnati
University of Colorado Boulder
Sezione INFN di Ferrara
University of Ferrara
LNF-INFN
Sezione di Genova
Harvey Mudd College
Humboldt-Universität zu Berlin
Department of Biosciences and Bioengineering
University of Iowa
Iowa State University
Johns Hopkins University
Université Paris-Saclay
Lawrence Livermore National Laboratory
University of Liverpool
Queen Mary University of London
Royal Holloway University of London
University of Louisville
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University of Maryland, College Park
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University of Mississippi
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University of Naples Federico II
Science Park 105
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INFN
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Sorbonne Université
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University of Perugia
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
University of Pisa
Scuola Normale Superiore di Pisa
Princeton University
Sezione di Roma
Dipartimento di Fisica
Universität Rostock
CCLRC Rutherford Appleton Laboratory
Stanford Linear Accelerator Center
University of South Carolina
Southern Methodist University
St. Francis Xavier University
Stanford University
State University of New York Albany
Tel Aviv University
University of Tennessee
The University of Texas at Austin
University of Texas
INFN Sezione di Torino
University of Turin
University of Trieste
University of Valencia
University of Victoria
University of Warwick
University of Wisconsin-Madison

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

13 Citations (Scopus)

Résumé

We report on a precision measurement of the ratio Rτμϒ(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 Rτμϒ(3S)=0.966±0.008stat±0.014syst and is in agreement with the standard model prediction of 0.9948 within 2 standard deviations. The uncertainty in Rτμϒ(3S) is almost an order of magnitude smaller than the only previous measurement.

langue originale	Anglais
Numéro d'article	241801
journal	Physical Review Letters
Volume	125
Numéro de publication	24
Les DOIs	https://doi.org/10.1103/PhysRevLett.125.241801
état	Publié - 8 déc. 2020

Accès au document

10.1103/PhysRevLett.125.241801

Contient cette citation

Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Y. G., Fritsch, M., Koch, H., Schroeder, T., Cheaib, R., Hearty, C., Mattison, T. S., McKenna, J. A., So, R. Y., Blinov, V. E., Buzykaev, A. R., Druzhinin, V. P., ... Wu, S. L. (2020). Precision Measurement of the Ratio B (ϒ (3S) →τ+τ-) / B (ϒ (3S) →μ+μ-). Physical Review Letters, 125(24), Article 241801. https://doi.org/10.1103/PhysRevLett.125.241801

@article{15e29726fab74d77a0b216709bec8be7,

title = "Precision Measurement of the Ratio B (ϒ (3S) →τ+τ-) / B (ϒ (3S) →μ+μ-)",

abstract = "We report on a precision measurement of the ratio Rτμϒ(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 Rτμϒ(3S)=0.966±0.008stat±0.014syst and is in agreement with the standard model prediction of 0.9948 within 2 standard deviations. The uncertainty in Rτμϒ(3S) is almost an order of magnitude smaller than the only previous measurement.",

author = "Lees, \{J. P.\} and V. Poireau and V. Tisserand and E. Grauges and A. Palano and G. Eigen and Brown, \{D. N.\} and Kolomensky, \{Yu G.\} and M. Fritsch and H. Koch and T. Schroeder and R. Cheaib and C. Hearty and Mattison, \{T. S.\} and McKenna, \{J. A.\} and So, \{R. Y.\} and Blinov, \{V. E.\} and Buzykaev, \{A. R.\} and Druzhinin, \{V. P.\} and Golubev, \{V. B.\} and Kozyrev, \{E. A.\} and Kravchenko, \{E. A.\} and Onuchin, \{A. P.\} and Serednyakov, \{S. I.\} and Skovpen, \{Yu I.\} and Solodov, \{E. P.\} and Todyshev, \{K. Yu\} and Lankford, \{A. J.\} and B. Dey and Gary, \{J. W.\} and O. Long and Eisner, \{A. M.\} and Lockman, \{W. S.\} and \{Panduro Vazquez\}, W. and Chao, \{D. S.\} and Cheng, \{C. H.\} and B. Echenard and Flood, \{K. T.\} and Hitlin, \{D. G.\} and J. Kim and Y. Li and Lin, \{D. X.\} and Miyashita, \{T. S.\} and P. Ongmongkolkul and J. Oyang and Porter, \{F. C.\} and M. R{\"o}hrken and Z. Huard and Meadows, \{B. T.\} and Pushpawela, \{B. G.\} and Sokoloff, \{M. D.\} and L. Sun and Smith, \{J. G.\} and Wagner, \{S. R.\} and D. Bernard and M. Verderi and D. Bettoni and C. Bozzi and R. Calabrese and G. Cibinetto and E. Fioravanti and I. Garzia and E. Luppi and V. Santoro and A. Calcaterra and \{De Sangro\}, R. and G. Finocchiaro and S. Martellotti and P. Patteri and Peruzzi, \{I. M.\} and M. Piccolo and M. Rotondo and A. Zallo and S. Passaggio and C. Patrignani and Shuve, \{B. J.\} and Lacker, \{H. M.\} and B. Bhuyan and U. Mallik and C. Chen and J. Cochran and S. Prell and Gritsan, \{A. V.\} and N. Arnaud and M. Davier and \{Le Diberder\}, F. and Lutz, \{A. M.\} and G. Wormser and Lange, \{D. J.\} and Wright, \{D. M.\} and Coleman, \{J. P.\} and E. Gabathuler and Hutchcroft, \{D. E.\} and Payne, \{D. J.\} and C. Touramanis and Bevan, \{A. J.\} and \{Di Lodovico\}, F. and R. Sacco and G. Cowan and Sw Banerjee and Brown, \{D. N.\} and Davis, \{C. L.\} and Denig, \{A. G.\} and W. Gradl and K. Griessinger and A. Hafner and Schubert, \{K. R.\} and Barlow, \{R. J.\} and Lafferty, \{G. D.\} and R. Cenci and A. Jawahery and Roberts, \{D. A.\} and R. Cowan and Robertson, \{S. H.\} and Seddon, \{R. M.\} and N. Neri and F. Palombo and L. Cremaldi and R. Godang and Summers, \{D. J.\} and P. Taras and \{De Nardo\}, G. and C. Sciacca and G. Raven and Jessop, \{C. P.\} and Losecco, \{J. M.\} and K. Honscheid and R. Kass and A. Gaz and M. Margoni and M. Posocco and G. Simi and F. Simonetto and R. Stroili and S. Akar and E. Ben-Haim and M. Bomben and Bonneaud, \{G. R.\} and G. Calderini and J. Chauveau and G. Marchiori and J. Ocariz and M. Biasini and E. Manoni and A. Rossi and G. Batignani and S. Bettarini and M. Carpinelli and G. Casarosa and M. Chrzaszcz and F. Forti and Giorgi, \{M. A.\} and A. Lusiani and B. Oberhof and E. Paoloni and M. Rama and G. Rizzo and Walsh, \{J. J.\} and L. Zani and Smith, \{A. J.S.\} and F. Anulli and R. Faccini and F. Ferrarotto and F. Ferroni and A. Pilloni and G. Piredda and C. B{\"u}nger and S. Dittrich and O. Gr{\"u}nberg and M. He{\ss} and T. Leddig and C. Vo{\ss} and R. Waldi and T. Adye and Wilson, \{F. F.\} and S. Emery and G. Vasseur and D. Aston and C. Cartaro and Convery, \{M. R.\} and J. Dorfan and W. Dunwoodie and M. Ebert and Field, \{R. C.\} and Fulsom, \{B. G.\} and Graham, \{M. T.\} and C. Hast and Innes, \{W. R.\} and P. Kim and Leith, \{D. W.G.S.\} and S. Luitz and Macfarlane, \{D. B.\} and Muller, \{D. R.\} and H. Neal and Ratcliff, \{B. N.\} and A. Roodman and Sullivan, \{M. K.\} and J. Va'Vra and Wisniewski, \{W. J.\} and Purohit, \{M. V.\} and Wilson, \{J. R.\} and A. Randle-Conde and Sekula, \{S. J.\} and H. Ahmed and M. Bellis and Burchat, \{P. R.\} and Puccio, \{E. M.T.\} and Alam, \{M. S.\} and Ernst, \{J. A.\} and R. Gorodeisky and N. Guttman and Peimer, \{D. R.\} and A. Soffer and Spanier, \{S. M.\} and Ritchie, \{J. L.\} and Schwitters, \{R. F.\} and Izen, \{J. M.\} and Lou, \{X. C.\} and F. Bianchi and \{De Mori\}, F. and A. Filippi and D. Gamba and L. Lanceri and L. Vitale and F. Martinez-Vidal and A. Oyanguren and J. Albert and A. Beaulieu and Bernlochner, \{F. U.\} and King, \{G. J.\} and R. Kowalewski and T. Lueck and Nugent, \{I. M.\} and Roney, \{J. M.\} and A. Sibidanov and Sobie, \{R. J.\} and N. Tasneem and Gershon, \{T. J.\} and Harrison, \{P. F.\} and Latham, \{T. E.\} and R. Prepost and Wu, \{S. L.\}",

note = "Publisher Copyright: {\textcopyright} 2020 authors.",

year = "2020",

month = dec,

day = "8",

doi = "10.1103/PhysRevLett.125.241801",

language = "English",

volume = "125",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "24",

}

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, Brown, DN, 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 2020, 'Precision Measurement of the Ratio B (ϒ (3S) →τ+τ-) / B (ϒ (3S) →μ+μ-)', Physical Review Letters, VOL. 125, Numéro 24, 241801. https://doi.org/10.1103/PhysRevLett.125.241801

TY - JOUR

T1 - Precision Measurement of the Ratio B (ϒ (3S) →τ+τ-) / B (ϒ (3S) →μ+μ-)

AU - Lees, J. P.

AU - Poireau, V.

AU - Tisserand, V.

AU - Grauges, E.

AU - Palano, A.

AU - Eigen, G.

AU - Brown, D. N.

AU - Kolomensky, Yu G.

AU - Fritsch, M.

AU - Koch, H.

AU - Schroeder, T.

AU - Cheaib, R.

AU - Hearty, C.

AU - Mattison, T. S.

AU - McKenna, J. A.

AU - So, R. Y.

AU - Blinov, V. E.

AU - Buzykaev, A. R.

AU - Druzhinin, V. P.

AU - Golubev, V. B.

AU - Kozyrev, E. A.

AU - Kravchenko, E. A.

AU - Onuchin, A. P.

AU - Serednyakov, S. I.

AU - Skovpen, Yu I.

AU - Solodov, E. P.

AU - Todyshev, K. Yu

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PY - 2020/12/8

Y1 - 2020/12/8

N2 - We report on a precision measurement of the ratio Rτμϒ(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 Rτμϒ(3S)=0.966±0.008stat±0.014syst and is in agreement with the standard model prediction of 0.9948 within 2 standard deviations. The uncertainty in Rτμϒ(3S) is almost an order of magnitude smaller than the only previous measurement.

AB - We report on a precision measurement of the ratio Rτμϒ(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 Rτμϒ(3S)=0.966±0.008stat±0.014syst and is in agreement with the standard model prediction of 0.9948 within 2 standard deviations. The uncertainty in Rτμϒ(3S) is almost an order of magnitude smaller than the only previous measurement.

U2 - 10.1103/PhysRevLett.125.241801

DO - 10.1103/PhysRevLett.125.241801

M3 - Article

C2 - 33412062

AN - SCOPUS:85097586300

SN - 0031-9007

VL - 125

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

M1 - 241801

ER -

Precision Measurement of the Ratio B (ϒ (3S) →τ+τ-) / B (ϒ (3S) →μ+μ-)

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