@article{f0689e912ea041fb907bf41021fbabe4,
title = "Search for charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays at Belle",
abstract = "We report a search for the charged-lepton flavor violation in Υ(2S) → ℓ∓τ± (ℓ = e, μ) decays using a 25 fb−1 Υ(2S) sample collected by the Belle detector at the KEKB e+e− asymmetric-energy collider. We find no evidence for a signal and set upper limits on the branching fractions (B) at 90% confidence level. We obtain the most stringent upper limits: B(Υ(2S) → μ∓τ±) < 0.23 × 10−6 and B(Υ(2S) → e∓τ±) < 1.12 × 10−6.",
keywords = "Beyond Standard Model, Flavour Physics, e-e Experiments",
author = "{The Belle Collaboration} and R. Dhamija and S. Nishida and A. Giri and I. Adachi and H. Aihara and Asner, {D. M.} and T. Aushev and R. Ayad and V. Babu and S. Bahinipati and Sw Banerjee and M. Bauer and P. Behera and K. Belous and J. Bennett and M. Bessner and V. Bhardwaj and D. Biswas 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 V. Chekelian and Cheon, {B. G.} and K. Chilikin and Cho, {H. E.} and K. Cho and Choi, {S. K.} and Y. Choi and S. Choudhury and D. Cinabro and S. Das and {De Nardo}, G. and {De Pietro}, G. and {Di Capua}, F. and J. Dingfelder and Z. Dole{\v z}al and Dong, {T. V.} and P. Ecker and D. Epifanov and T. Ferber and D. Ferlewicz and E. Won",
note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",
year = "2024",
month = feb,
doi = "10.1007/JHEP02(2024)187",
language = "English",
volume = "2024",
journal = "Journal of High Energy Physics",
issn = "1126-6708",
publisher = "Springer Verlag",
number = "2",
}