A model for the B ---> X_{s}+γdecay in the chromomagnetic background

Details A model for the B ---> X_{s}+γdecay in the chromomagnetic background A model for the B ---> X_{s}+γdecay in the chromomagnetic background

1995-07-26

arxiv.org/abs/hep-ph/9507410v2

Phys.Lett. B361 (1995) 105-109

Physics

High Energy Physics

High Energy Physics - Phenomenology

12pp, 1 figure (uuencoded file attached), comments added

Scientific paper

10.1016/0370-2693(95)01130-I

We calculate the shape of the photon spectrum for $B\rightarrow X_{s}+\gamma$ decay in the presence of a background chromomagnetic field for the case of SU(2) gauge group. The effect of the external field resembles the Zeeman effect - the parton model peak is split into two slightly assymetric peaks, located around the kinematic endpoint. We investigate the analytic properties of the spectrum and calculate the total decay rate. This decay may serve as a model for the investigation of gluon condensate effects and their influence on the shape of the spectrum.

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