We present the first search for the semileptonic decay Ds+→π0e+νe using 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. This decay is expected to be sensitive to π0-η mixing. No significant signal is observed. We set an upper limit of 6.4×10-5 on the branching fraction at the 90% confidence level

Search for the semileptonic decay Ds+→π0e+νe

Garzia, I.;
2022

Abstract

We present the first search for the semileptonic decay Ds+→π0e+νe using 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. This decay is expected to be sensitive to π0-η mixing. No significant signal is observed. We set an upper limit of 6.4×10-5 on the branching fraction at the 90% confidence level
2022
Ablikim, M.; Achasov, M.  N.; Adlarson, P.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, M.  R.; An, Q.; Bai, X.  H.; Bai, Y.; Bakina, O.; Baldini Fer...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2505852
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