We study the differential branching ratio and CP asymmetry for the exclusive decay B-->K*l+l- in the three Higgs doublet model with an additional global O(2) symmetry in the Higgs sector. We analyze the dilepton mass square q2 dependency of these quantities. Further, we study the effect of a new parameter of the global symmetry in the Higgs sector on the differential branching ratio and CP asymmetry. We see that there exists an enhancement in the branching ratio and considerable CP violation for the relevant process. In addition to this, we realize that fixing the dilepton mass gives information about the sign of the Wilson coefficient Ceff7. Therefore, the future measurements of the CP asymmetry for the B-->K*l+l- decay will give powerful information about the sign of the Wilson coefficient Ceff7 and new physics beyond the SM.
Physical Review D
- Pub Date:
- March 2000
- Decays of bottom mesons;
- Extensions of electroweak Higgs sector;
- High Energy Physics - Phenomenology
- 19 pages, 6 figures