Recent measurements of CP asymmetries of B ---> phi K0 and B ---> eta-prime K(S) at B-factories suggest new CP violation in left-handed squark mixing - INSPIRE

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Recent measurements of CP asymmetries of B ---> phi K0 and B ---> eta-prime K(S) at B-factories suggest new CP violation in left-handed squark mixing

Sep, 2004

11 pages

Published in:

Phys.Lett.B 609 (2005) 95-101

e-Print:

hep-ph/0409245 [hep-ph]

DOI:

10.1016/j.physletb.2004.12.049

Report number:

TU-730

View in:

ADS Abstract Service

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Abstract:

Recent results on the mixing-induced CP asymmetries of B \to \phi K^0 and B \to \eta' K_S measured at B-factories appear to indicate discrepancies from the Standard Model expectation. Explanation of this possible anomaly is given in the context of supersymmetric extension of the Standard Model. It is shown that the present data, if the average of two experiments is taken, implies additional CP violation appearing in the generation mixing of left-handed squarks rather than that of right-handed ones. This explanation is argued to disfavor many mediation mechanisms of supersymmetry breaking, including minimal supergravity, because renormalization group effects via Yukawa interaction are unlikely to generate the desired mass mixing.

B0: hadronic decay
CP: violation
supersymmetry: symmetry breaking
squark: mixing
squark: left-handed
numerical calculations: interpretation of experiments

References(42)

Figures(0)

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