Search for Lepton Flavor Violation in ? (3S) ?e ±µ±

(BABAR Collaboration)

doi:10.1103/PhysRevLett.128.091804

Search for Lepton Flavor Violation in ? (3S) ?e ±µ±

(BABAR Collaboration)

Laboratoire de Physique des Particules
University of Barcelona
INFN Sezione di Bari
University of Bergen
University of California, Berkeley
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
Wuhan University
University of Colorado Boulder
Sezione INFN di Ferrara
University of Ferrara
LNF-INFN
Sezione di Genova
University of Bologna
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
King's College London
Royal Holloway University of London
University of Louisville
Western Kentucky University
Johannes Gutenberg University
University of Manchester
University of Huddersfield
University of Maryland, College Park
Massachusetts Institute of Technology
McGill University
Sezione INFN di Milano
University of Milano
University of Mississippi
Universety of South Alabama
Universite de Montreal
University of Naples Federico II
Science Park 105
University of Notre Dame
The Ohio State University
INFN
University of Padova
Sorbonne Université
University of Perugia
INFN Sezione di Perugia
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
University of Pisa
Dipartimento di Scienze Biomediche
Scuola Normale Superiore di Pisa
Princeton University
Sezione di Roma
Dipartimento di Fisica
Gran Sasso Science Institute
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

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a b quark and b antiquark bound state. We look for the LFV decay ?(3S)?e±µ± in a sample of 118 million ?(3S) mesons from 27 fb-1 of data collected with the BABAR detector at the SLAC PEP-II e+e- collider operating with a 10.36 GeV center-of-mass energy. No evidence for a signal is found, and we set a limit on the branching fraction B[?(3S)?e±µ±]<3.6×10-7 at 90% C. L. This result can be interpreted as a limit ?NP/gNP2>80 TeV on the energy scale ?NP divided by the coupling-squared gNP2 of relevant new physics (NP).

Original language	English
Article number	091804
Journal	Physical Review Letters
Volume	128
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.128.091804
Publication status	Published - 4 Mar 2022

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10.1103/PhysRevLett.128.091804

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@article{b773f5b1a27e4776b9f9b8a32f2b61f1,

title = "Search for Lepton Flavor Violation in ? (3S) ?e ±µ±",

abstract = "We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a b quark and b antiquark bound state. We look for the LFV decay ?(3S)?e±µ± in a sample of 118 million ?(3S) mesons from 27 fb-1 of data collected with the BABAR detector at the SLAC PEP-II e+e- collider operating with a 10.36 GeV center-of-mass energy. No evidence for a signal is found, and we set a limit on the branching fraction B[?(3S)?e±µ±]<3.6×10-7 at 90\% C. L. This result can be interpreted as a limit ?NP/gNP2>80 TeV on the energy scale ?NP divided by the coupling-squared gNP2 of relevant new physics (NP).",

author = "\{(BABAR Collaboration)\} and 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 S. Middleton and Miyashita, \{T. S.\} and P. Ongmongkolkul and J. Oyang and Porter, \{F. C.\} and M. R{\"o}hrken and D. Bernard and M. Verderi",

note = "Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society.",

year = "2022",

month = mar,

day = "4",

doi = "10.1103/PhysRevLett.128.091804",

language = "English",

volume = "128",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "9",

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TY - JOUR

T1 - Search for Lepton Flavor Violation in ? (3S) ?e ±µ±

AU - (BABAR Collaboration)

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

AU - Lankford, A. J.

AU - Dey, B.

AU - Gary, J. W.

AU - Long, O.

AU - Eisner, A. M.

AU - Lockman, W. S.

AU - Panduro Vazquez, W.

AU - Chao, D. S.

AU - Cheng, C. H.

AU - Echenard, B.

AU - Flood, K. T.

AU - Hitlin, D. G.

AU - Kim, J.

AU - Li, Y.

AU - Lin, D. X.

AU - Middleton, S.

AU - Miyashita, T. S.

AU - Ongmongkolkul, P.

AU - Oyang, J.

AU - Porter, F. C.

AU - Röhrken, M.

AU - Bernard, D.

AU - Verderi, M.

PY - 2022/3/4

Y1 - 2022/3/4

N2 - We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a b quark and b antiquark bound state. We look for the LFV decay ?(3S)?e±µ± in a sample of 118 million ?(3S) mesons from 27 fb-1 of data collected with the BABAR detector at the SLAC PEP-II e+e- collider operating with a 10.36 GeV center-of-mass energy. No evidence for a signal is found, and we set a limit on the branching fraction B[?(3S)?e±µ±]<3.6×10-7 at 90% C. L. This result can be interpreted as a limit ?NP/gNP2>80 TeV on the energy scale ?NP divided by the coupling-squared gNP2 of relevant new physics (NP).

AB - We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a b quark and b antiquark bound state. We look for the LFV decay ?(3S)?e±µ± in a sample of 118 million ?(3S) mesons from 27 fb-1 of data collected with the BABAR detector at the SLAC PEP-II e+e- collider operating with a 10.36 GeV center-of-mass energy. No evidence for a signal is found, and we set a limit on the branching fraction B[?(3S)?e±µ±]<3.6×10-7 at 90% C. L. This result can be interpreted as a limit ?NP/gNP2>80 TeV on the energy scale ?NP divided by the coupling-squared gNP2 of relevant new physics (NP).

U2 - 10.1103/PhysRevLett.128.091804

DO - 10.1103/PhysRevLett.128.091804

M3 - Article

C2 - 35302790

AN - SCOPUS:85126653380

SN - 0031-9007

VL - 128

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

M1 - 091804

ER -

Search for Lepton Flavor Violation in ? (3S) ?e ±µ±

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