Supersymmetric contributions to the CP asymmetry of the B --> phi K and B --> eta' K

Details Supersymmetric contributions to the CP asymmetry of the B --> phi K and B --> eta' K Supersymmetric contributions to the CP asymmetry of the B --> phi K and B --> eta' K

2004-11-10

arxiv.org/abs/hep-ph/0411151v2

Mod.Phys.Lett. A19 (2004) 2745-2756; Afr.J.Math.Phys. 1 (2004) 101-107

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited review article for Mod. Phys. Lett. A. 12 pages, 5 figures. 2 refs. added

Scientific paper

10.1142/S0217732304015907

We analyse the CP asymmetry of the B --> phi K and B --> eta' K processes in general supersymmetric models. We consider both gluino and chargino exchanges in a model independent way by using the mass insertion approximation method. We adopt the QCD factorization method for evaluating the corresponding hadronic matrix elements. We show that chromomagnetic type of operator may play an important role in accounting for the deviation of the mixing CP asymmetry between B --> phi K and B --> J/psi K processes observed by Belle and BaBar experiments. We also show that due to the different parity in the final states of these processes, their supersymmetric contributions from the R-sector have an opposite sign, which naturally explain the large deviation between their asymmetries.

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