Search for charged lepton flavor violating decays of Υ (1S)

The Belle Collaboration

doi:10.1007/JHEP05(2022)095

Search for charged lepton flavor violating decays of Υ (1S)

The Belle Collaboration

Indian Institute of Science Education and Research Mohali
Université Paris-Saclay
The Graduate University for Advanced Studies
High Energy Accelerator Research Organization, Tsukuba
The University of Tokyo
King Abdulaziz University
University of Tabuk
Brookhaven National Laboratory
University of Cincinnati
Higher School of Economics
German Electron Synchrotron
Indian Institute of Technology Bhubaneswar
Indian Institute of Technology Madras
Institute for High Energy Physics
University of Mississippi
University of Hawai'i at Mānoa
Indian Institute of Technology Guwahati
Charles University
RAS - Budker Institute of Nuclear Physics
Novosibirsk State University
RAS - P.N. Lebedev Physics Institute
H. Niewodniczanski Institute of Nuclear Physics
Jožef Stefan Institute
University of Maribor
National Institute for Nuclear Physics
University of Naples Federico II
Fu Jen Catholic University
National Taiwan University
National Central University
Hanyang University
Korea Institute of Science and Technology Information
Yonsei University
Chung-Ang University
Sungkyunkwan University
Iowa State University
Wayne State University
Malaviya National Institute of Technology
Indian Institute of Technology Hyderabad
University of Bonn

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

11 Scopus citations

Abstract

We present a search for the charged lepton-flavor-violating decays ϒ(1S) →ℓ^±ℓ′^∓ and radiative charged lepton-flavour-violating decays ϒ(1S) → γℓ^±ℓ′^∓ [ℓ,ℓ′ = e, μ, τ] using the 158 million ϒ(2S) sample collected by the Belle detector at the KEKB collider. This search uses ϒ(1S) mesons produced in ϒ(2S) → π⁺π⁻ ϒ(1S) transitions. We do not find any significant signal, so we provide upper limits on the branching fractions at the 90% confidence level. [Figure not available: see fulltext.]

Original language	English
Article number	95
Journal	Journal of High Energy Physics
Volume	2022
Issue number	5
DOIs	https://doi.org/10.1007/JHEP05(2022)095
State	Published - May 2022

Keywords

e-e Experiments

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10.1007/JHEP05(2022)095

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@article{94aa3f0fc9d54dc8a692b0380f6ec059,

title = "Search for charged lepton flavor violating decays of Υ (1S)",

abstract = "We present a search for the charged lepton-flavor-violating decays ϒ(1S) →ℓ±ℓ′∓ and radiative charged lepton-flavour-violating decays ϒ(1S) → γℓ±ℓ′∓ [ℓ,ℓ′ = e, μ, τ] using the 158 million ϒ(2S) sample collected by the Belle detector at the KEKB collider. This search uses ϒ(1S) mesons produced in ϒ(2S) → π+π− ϒ(1S) transitions. We do not find any significant signal, so we provide upper limits on the branching fractions at the 90\% confidence level. [Figure not available: see fulltext.]",

keywords = "e-e Experiments",

author = "\{The Belle Collaboration\} and S. Patra and V. Bhardwaj and K. Trabelsi and I. Adachi and H. Aihara and \{Al Said\}, S. and Asner, \{D. M.\} and H. Atmacan and T. Aushev and R. Ayad and V. Babu and S. Bahinipati and P. Behera and K. Belous and J. Bennett and M. Bessner and B. Bhuyan and T. Bilka and A. Bobrov and D. Bodrov and J. Borah and A. Bozek and M. Bra{\v c}ko and P. Branchini and Browder, \{T. E.\} and A. Budano and M. Campajola and D. {\v C}ervenkov and Chang, \{M. C.\} and P. Chang and A. Chen and Cheon, \{B. G.\} and K. Chilikin and Cho, \{H. E.\} and K. Cho and Cho, \{S. J.\} and Choi, \{S. K.\} and Y. Choi and S. Choudhury and D. Cinabro and S. Cunliffe and S. Das and \{De Nardo\}, G. and \{De Pietro\}, G. and R. Dhamija and \{Di Capua\}, F. and J. Dingfelder and Z. Dole{\v z}al and Kang, \{K. H.\} and H. Park",

note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = may,

doi = "10.1007/JHEP05(2022)095",

language = "English",

volume = "2022",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "5",

}

TY - JOUR

T1 - Search for charged lepton flavor violating decays of Υ (1S)

AU - The Belle Collaboration

AU - Patra, S.

AU - Bhardwaj, V.

AU - Trabelsi, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Atmacan, H.

AU - Aushev, T.

AU - Ayad, R.

AU - Babu, V.

AU - Bahinipati, S.

AU - Behera, P.

AU - Belous, K.

AU - Bennett, J.

AU - Bessner, M.

AU - Bhuyan, B.

AU - Bilka, T.

AU - Bobrov, A.

AU - Bodrov, D.

AU - Borah, J.

AU - Bozek, A.

AU - Bračko, M.

AU - Branchini, P.

AU - Browder, T. E.

AU - Budano, A.

AU - Campajola, M.

AU - Červenkov, D.

AU - Chang, M. C.

AU - Chang, P.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, H. E.

AU - Cho, K.

AU - Cho, S. J.

AU - Choi, S. K.

AU - Choi, Y.

AU - Choudhury, S.

AU - Cinabro, D.

AU - Cunliffe, S.

AU - Das, S.

AU - De Nardo, G.

AU - De Pietro, G.

AU - Dhamija, R.

AU - Di Capua, F.

AU - Dingfelder, J.

AU - Doležal, Z.

AU - Kang, K. H.

AU - Park, H.

PY - 2022/5

Y1 - 2022/5

N2 - We present a search for the charged lepton-flavor-violating decays ϒ(1S) →ℓ±ℓ′∓ and radiative charged lepton-flavour-violating decays ϒ(1S) → γℓ±ℓ′∓ [ℓ,ℓ′ = e, μ, τ] using the 158 million ϒ(2S) sample collected by the Belle detector at the KEKB collider. This search uses ϒ(1S) mesons produced in ϒ(2S) → π+π− ϒ(1S) transitions. We do not find any significant signal, so we provide upper limits on the branching fractions at the 90% confidence level. [Figure not available: see fulltext.]

AB - We present a search for the charged lepton-flavor-violating decays ϒ(1S) →ℓ±ℓ′∓ and radiative charged lepton-flavour-violating decays ϒ(1S) → γℓ±ℓ′∓ [ℓ,ℓ′ = e, μ, τ] using the 158 million ϒ(2S) sample collected by the Belle detector at the KEKB collider. This search uses ϒ(1S) mesons produced in ϒ(2S) → π+π− ϒ(1S) transitions. We do not find any significant signal, so we provide upper limits on the branching fractions at the 90% confidence level. [Figure not available: see fulltext.]

KW - e-e Experiments

UR - https://www.scopus.com/pages/publications/85132159524

U2 - 10.1007/JHEP05(2022)095

DO - 10.1007/JHEP05(2022)095

M3 - Article

AN - SCOPUS:85132159524

SN - 1029-8479

VL - 2022

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 5

M1 - 95

ER -

Search for charged lepton flavor violating decays of Υ (1S)

Abstract

Keywords

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