$CP$ violation in $\vec{B} φ K_{S}$ decay at large $\tan β$

23 May 2003

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

Vol. 67 (9) , 096004
https://doi.org/10.1103/physrevd.67.096004

Abstract

We consider the chargino contribution to

CP

violation in

\vec{B} φ K_{S}

decay in the minimal supersymmetric standard model at large

\tan β .

It is shown that the Wilson coefficient

C_{8 g}

of the chromomagnetic penguin operator can be significantly enhanced by the chargino-mediated diagrams while satisfying other direct or indirect experimental constraints. The enhanced

C_{8 g}

allows a large deviation in the

CP

asymmetry from the standard model prediction, especially it can explain the apparent anomaly reported by BaBar and Belle.

Keywords

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This publication has 48 references indexed in Scilit:

CP violation: The CKM matrix and new physics
Nuclear Physics B - Proceedings Supplements, 2003
On supersymmetric contributions to theCPasymmetry of the $\vec{B} φ K_{S}$ process
Physical Review D, 2003
Consistent Resolution of Possible Anomalies in $B^{0} \to ϕ K_{S}$ and $B^{+} \to η^{'} K^{+}$ Decays
Physical Review Letters, 2003
$C P$ Asymmetry in $B \to ϕ K_{S}$ Decays in Left-Right Models and its Implications for $B_{s}$ Decays
Physical Review Letters, 2002
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Physical Review Letters, 2002
R-parity-violating SUSY andCPviolation inB→φKS
Physical Review D, 2002
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Physical Review D, 2002
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CPviolation inB→φKSdecay at largetanβ

Abstract

Keywords

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$CP$ violation in $\vec{B} φ K_{S}$ decay at large $\tan β$