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

Authors

S. Patra, Indian Institute of Science Education and Research Mohali
V. Bhardwaj, Indian Institute of Science Education and Research Mohali
K. Trabelsi, Université Paris-Saclay
I. Adachi, The Graduate University for Advanced Studies
H. Aihara, The University of Tokyo
S. Al Said, King Abdulaziz University
D. M. Asner, Brookhaven National Laboratory
H. Atmacan, University of Cincinnati
T. Aushev, HSE University
R. Ayad, University of Tabuk
V. Babu, Deutsches Elektronen-Synchrotron (DESY)
S. Bahinipati, Indian Institute of Technology Bhubaneswar
P. Behera, Indian Institute of Technology Madras
K. Belous, Institut fiziki vysokikh energii
J. Bennett, University of Mississippi
M. Bessner, University of Hawaiʻi at Mānoa
B. Bhuyan, Indian Institute of Technology Guwahati
T. Bilka, Charles University
A. Bobrov, Budker Institute of Nuclear Physics of the Siberian Branch of the RAS

Document Type

Article

Publication Date

5-1-2022

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.]

Relational Format

journal article

Recommended Citation

The BELLE collaboration, Patra, S., Bhardwaj, V., Trabelsi, K., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhuyan, B., Bilka, T., … Zhulanov, V. (2022). Search for charged lepton flavor violating decays of ϒ (1s). Journal of High Energy Physics, 2022(5), 95. https://doi.org/10.1007/JHEP05(2022)095

DOI

10.1007/JHEP05(2022)095

Accessibility Status

Searchable text