Two-Body Hadronic Decays of $D$ Mesons

17 September 1979

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 43 (12) , 812-815
https://doi.org/10.1103/physrevlett.43.812

Abstract

This Letter accounts for the observed (i) enhancement of

\frac{Γ (D^{0} \to K^{-} K^{+})}{Γ (D^{0} \to K^{-} π^{+})}

and (ii) suppression of

\frac{Γ (D^{0} \to π^{-} π^{+})}{Γ (D^{0} \to K^{-} π^{+})}

relative to

{{tan}^{2} θ}_{C}

in terms of (i) the ratio

\frac{f_{K}}{f_{π}}

of leptonic decay constants and (ii) different effective Cabibbo angles in noncharm and charm sectors. Strong new constraints on mixing angles in the six-quark model are implied.

Keywords

This publication has 14 references indexed in Scilit:

Observation of Cabibbo-Suppressed Decay $D^{0} \to π^{-} π^{+}$ and $D^{0} \to K^{-} K^{+}$
Physical Review Letters, 1979
Constraints on Weak-Current Angles of the Six-Quark Model from the $K^{0} - {\bar{K}}^{0}$ System
Physical Review Letters, 1979
Bounds on Quark Mixing Angles in the Standard Six-Quark Model
Physical Review Letters, 1979
Two-body decays of charmed mesons
Physics Letters B, 1978
F- and D-decays
Nuclear Physics B, 1978
On the weak decays of high-mass hadrons
Nuclear Physics B, 1975
Weak decays of charmed hadrons
Physical Review D, 1975
CP-Violation in the Renormalizable Theory of Weak Interaction
Progress of Theoretical Physics, 1973
Weak Interactions with Lepton-Hadron Symmetry
Physical Review D, 1970
A Model of Leptons
Physical Review Letters, 1967

Two-Body Hadronic Decays ofDMesons

Abstract

Keywords

Two-Body Hadronic Decays of $D$ Mesons