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.; et all .;2025-02-1720225http://dx.doi.org/10.1007/JHEP05(2022)095https://idr.iitbbs.ac.in/handle/2008/4012We present a search for the charged lepton-flavor-violating decays ?(1S) ??�??? and radiative charged lepton-flavour-violating decays ?(1S) ? ??�??? [?,?? = e, ?, ?] using the 158 million ?(2S) sample collected by the Belle detector at the KEKB collider. This search uses ?(1S) mesons produced in ?(2S) ? ?+?? ?(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.] � 2022, The Author(s).ene⁺-e^? ExperimentsArticle