SU (3) breaking and D0-D̄0 mixing

Adam F. Falk; Yuval Grossman; Zoltan Ligeti; Alexey A. Petrov

doi:10.1103/PhysRevD.65.054034

SU (3) breaking and D⁰-D̄⁰ mixing

Adam F. Falk, Yuval Grossman, Zoltan Ligeti, Alexey A. Petrov

Research output: Contribution to journal › Article › peer-review

208 Scopus citations

Abstract

The main challenge in the standard model calculation of the mass and width difference in the D⁰-D̄⁰ system is to estimate the size of SU (3) breaking effects. We prove that D meson mixing occurs in the standard model only at second order in SU (3) violation. We consider the possibility that phase space effects may be the dominant source of SU (3) breaking. We find that y = ΔΓ/2Γ of the order of one percent is natural in the standard model, potentially reducing the sensitivity to new physics of measurements of D meson mixing.

Original language	English
Article number	054034
Journal	Physical Review D
Volume	65
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.65.054034
State	Published - 2002
Externally published	Yes

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SU (3) breaking and D⁰-D̄⁰ mixing

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