Measurements of the absolute branching fractions and CP asymmetries for D+ → KS,L0 K+ (π0)

(BESIII Collaboration)

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

Using e+e- collision data corresponding to an integrated luminosity of 2.93 fb-1 taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we determine the absolute branching fractions B(D+→KS0K+)=(3.02±0.09±0.08)×10-3, B(D+→KS0K+π0)=(5.07±0.19±0.23)×10-3, B(D+→KL0K+)=(3.21±0.11±0.11)×10-3, and B(D+→KL0K+π0)=(5.24±0.22±0.22)×10-3, where the first and second uncertainties are statistical and systematic, respectively. The branching fraction B(D+→KS0K+) is consistent with the world average value and the other three branching fractions are measured for the first time. We also measure the CP asymmetries for the four decays and do not find a significant deviation from zero.

Lingua originaleInglese
Numero di articolo032002
RivistaPhysical Review D
Volume99
Numero di pubblicazione3
DOI
Stato di pubblicazionePubblicato - 1 feb 2019
Pubblicato esternamente

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