Ablikim, M.Achasov, M.N.Adlarson, P.Çetin, Serkant AliKolcu, Onur Buğra2025-04-182025-04-182024Ablikim, M., Achasov, M. N., Adlarson, P., Albrecht, M., Aliberti, R., Amoroso, A., ... & Jiang, S. S. (2024). Search for the leptonic decays $ D^{*+}\to e^+\nu_e $ and $ D^{*+}\to\mu^+\nu_\mu$. arXiv preprint arXiv:2405.09066.24700010http://dx.doi.org/10.1103/PhysRevD.110.012003https://hdl.handle.net/20.500.12713/7217We present the first search for the leptonic decays D∗+→e+νe and D∗+→μ+νμ by analyzing a data sample of electron-positron collisions recorded with the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, corresponding to an integrated luminosity of 6.32 fb-1. No significant signal is observed. The upper limits on the branching fractions for D∗+→e+νe and D∗+→μ+νμ are set to be 1.1×10-5 and 4.3×10-6 at 90% confidence level, respectively. © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.eninfo:eu-repo/semantics/openAccessArticle1101113WOS:0012907024000012-s2.0-85198286921Q210.1103/PhysRevD.110.012003Q1