By analyzing an e+e-annihilation data sample with an integrated luminosity of 2.93 fb-1 taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, we determine the absolute branching fractions of the hadronic decays D0→K-π+ω, D0→KS0π0ω, and D+→KS0π+ω to be (3.392±0.044stat±0.085syst)%, (0.848±0.046stat±0.031syst)%, and (0.707±0.041stat±0.029syst)%, respectively. The accuracy of the branching fraction measurement of the decay D0→K-π+ω is improved by a factor of seven compared to the world average value. The D0→KS0π0ω and D+→KS0π+ω decays are observed for the first time.

Observation of D0 (+) → KS0 π0 (+)ω and improved measurement of D0 →k-π+ω

Amoroso A.
;
Bianchi F.
;
Bortone A.
;
Destefanis M.
;
De Mori F.
;
Fava L.
;
Greco M.
;
Hu J. F.
;
Lavezzi L.
;
Maggiora M.
;
Marcello S.
;
Rivetti A.
;
Sosio S.
;
Spataro S.
;
Yan L.
;
2022-01-01

Abstract

By analyzing an e+e-annihilation data sample with an integrated luminosity of 2.93 fb-1 taken at the center-of-mass energy of 3.773 GeV with the BESIII detector, we determine the absolute branching fractions of the hadronic decays D0→K-π+ω, D0→KS0π0ω, and D+→KS0π+ω to be (3.392±0.044stat±0.085syst)%, (0.848±0.046stat±0.031syst)%, and (0.707±0.041stat±0.029syst)%, respectively. The accuracy of the branching fraction measurement of the decay D0→K-π+ω is improved by a factor of seven compared to the world average value. The D0→KS0π0ω and D+→KS0π+ω decays are observed for the first time.
2022
105
3
032009-1
032009-12
Ablikim M.; Achasov M.N.; Adlarson P.; Ahmed S.; Albrecht M.; Aliberti R.; Amoroso A.; An M.R.; An Q.; Bai X.H.; Bai Y.; Bakina O.; Ferroli R.B.; Balo...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1870063
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