Exclusive B -> K*l(+)l(-) decay with polarized K* and new physics effects

Download
2001-06-28
Using the most general, model independent effective Hamiltonian, the branching ratio of the B --> K* l(+)l(-) decay, when K* meson is longitudinally or transversally polarized, is presented. The dependence of the branching ratio on the new Wilson coefficients, when K* meson is polarized. is studied. It is observed that the branching ratio is very sensitive to the vector and tenser type interactions, which will be useful in search of new physics beyond the Standard Model.
PHYSICS LETTERS B

Suggestions

Rare B->K*l(+)l(-) decay, two Higgs doublet model, and light cone QCD sum rules
Alıyev, Tahmasıb; Savcı, Mustafa; Özpineci, Altuğ (1997-10-02)
The decay width, forward-backward asymmetry and lepton longitudinal and transversal polarization for the exclusive B --> K* l(+)l(-) decay in a two Higgs doublet model are computed. It is shown that all these quantities are very effective tools for establishing new physics. (C) 1997 Elsevier Science B.V.
Exclusive B ->rho l(+)l(-) decay and polarized lepton pair forward-backward asymmetries
Alıyev, Tahmasıb; Savcı, Mustafa (American Physical Society (APS), 2006-02-01)
The polarized lepton pair forward-backward asymmetries in B ->rho l(+)l(-) decay using a general, model independent form of the four-Fermi interaction is studied. The general expressions for nine double-lepton polarization forward-backward asymmetries are calculated. The study of the forward-backward asymmetries of the doubly polarized lepton pair proves to be a very useful tool in looking for new physics beyond the standard model.
Exclusive B -> K*l(+)l(-) decay in the three Higgs doublet model
Iltan, EO (2000-03-01)
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 q(2) 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...
T violation in Lambda b ->Lambda l(+)l(-) decay beyond standard model
Alıyev, Tahmasıb; Özpineci, Altuğ; Savcı, Mustafa (2002-08-29)
Using the most general, model independent form of effective Hamiltonian, the transverse polarization PT of A in Ab Al(+)l(-) decay is studied. It is observed that the averaged (PT) is very sensitive to the existence of new physics and can attain large values, which can be measured at future colliders.
Exclusive B ->pi l(+)l(-) and B -> pl(+)l(-) decays in the two Higgs doublet model
Alıyev, Tahmasıb (1999-07-01)
We investigate the exclusive B-->pi l(+)l(-) and B-->rho l(+)l(-) decays in the framework of the general two Higgs doublet model (model III), in which an extra phase angle in the charged-Higes fermion coupling, i.e., a new source for CP violation, exists. The CP violation for both decays is calculated and it is observed that the CP-violating asymmetry in model III differs significantly from the one predicted by the standard model and model II which is a special case of model III. Furthermore, it is shown th...
Citation Formats
T. Alıyev, A. Özpineci, and M. Savcı, “Exclusive B -> K*l(+)l(-) decay with polarized K* and new physics effects,” PHYSICS LETTERS B, pp. 49–58, 2001, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/38991.