2001/04/17 by Sasa Prelovsek, Prelovsek, Sasa
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0104159
7 pages, talk at the Cairo International Conference on High Energy Physics, 9-14 January 2001, Cairo, Egipt
arxiv created 2001/04/17 · arxiv updated 2009/11/30
We explore the sensitivity of the flavour changing neutral currents among c and u quarks in the context of the Minimal Supersymmetric Standard Model. The standard model rate for c->u gamma can be enhanced by up to two orders of magnitudes in general MSSM, while the c->ul+l- rate can be enhanced by at most a factor of three. The most suitable hadronic observable to probe the c->u gamma transition is the decay Bc->Bu^* gamma or the difference in decay rates of D0->rho0 gamma and D0->omega gamma, since they are relatively free of the long distance contributions. The c ->ul+l- transition may be probed in D ->pi l+l- decays at high high di-lepton mass and we predict the long distance contributions for these modes.