Using 2.93 fb-1 of e+e- annihilation data collected at a center-of-mass energy s=3.773 GeV with the BESIII detector operating at the BEPCII collider, we search for the semileptonic D0(+) decays into a b1(1235)-(0) axial-vector meson for the first time. No significant signal is observed for either charge combination. The upper limits on the product branching fractions are BD0→b1(1235)-e+νe·Bb1(1235)-→ωπ-<1.12×10-4 and BD+→b1(1235)0e+νe·Bb1(1235)0→ωπ0<1.75×10-4 at the 90% confidence level.

Search for the semileptonic decay D0 (+) →b1 (1235)- (0)e+νe

Garzia I.;Scodeggio M.;
2020

Abstract

Using 2.93 fb-1 of e+e- annihilation data collected at a center-of-mass energy s=3.773 GeV with the BESIII detector operating at the BEPCII collider, we search for the semileptonic D0(+) decays into a b1(1235)-(0) axial-vector meson for the first time. No significant signal is observed for either charge combination. The upper limits on the product branching fractions are BD0→b1(1235)-e+νe·Bb1(1235)-→ωπ-<1.12×10-4 and BD+→b1(1235)0e+νe·Bb1(1235)0→ωπ0<1.75×10-4 at the 90% confidence level.
2020
Ablikim, M.; Achasov, M. N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Aliberti, R.; Amoroso, A.; An, Q.; Anita, ; Bai, X. H.; Bai, Y.; Bakina, O.; Ferro...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2480907
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