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

Amoroso A.;Bianchi F.;Bortone A.;Destefanis M.;De Mori F.;Greco M.;Lavezzi L.;Maggiora M.;Marcello S.;Sosio S.;Spataro S.;
2020-01-01

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
102
11
112005-1
112005-9
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.; Ferroli R.B.; Baloss...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1796374
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