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 levelFile in questo prodotto:
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