We 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.

Search for the leptonic decays D∗+ →e+νe and D∗+ →μ+νμ

Garzia, I.;
2024

Abstract

We 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
Ablikim, M.; Achasov, M.  N.; Adlarson, P.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, M.  R.; An, Q.; Bai, Y.; Bakina, O.; Ferroli, R. Baldini; Bal...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2557591
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