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)

Physics

University at Albany

Université Savoie Mont Blanc
University of Barcelona
National Institute for Nuclear Physics
University of Bergen
University of California at 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
University of California at Irvine
University of California at Riverside
University of California at Santa Cruz
California Institute of Technology
University of Cincinnati

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

13 Scopus citations

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
State	Published - Mar 4 2022

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10.1103/PhysRevLett.128.091804

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@article{aac3b6568035420f995a42bcfd7a94f0,

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{\texttimes}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 Z. Huard and Ernst, \{J. A.\}",

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",

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 - Huard, Z.

AU - Ernst, J. A.

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).

UR - https://www.scopus.com/pages/publications/85126653380

U2 - 10.1103/PhysRevLett.128.091804

DO - 10.1103/PhysRevLett.128.091804

M3 - Article

C2 - 35302790

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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