Probing the sources of CP violation via B -> K*l(+)l(-) decay

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2000-10-01

Author

Alıyev, Tahmasıb
Savcı, Mustafa

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B-->K*l(-)I(+) (l=mu, tau) is analyzed in a minimally extended standard model in which the Wilson coefficients have new CP-odd phases. The sensitivity of the CP asymmetry and lepton polarization asymmetries to the new phases is discussed. It is found that the CP asymmetry is sensitive to the new phase in the Wilson coefficient C-7 whereas the normal lepton polarization asymmetry is sensitive to the phase in the Wilson coefficient C-10. Additionally, the correlation between the CP and normal lepton polarization asymmetries is studied. A simultaneous measurement of these two asymmetries can be useful in search for the existence of the new sources of CP violation beyond the standard model.

Subject Keywords

Asymmetry, B->S-Gamma, B->Kl(+)L(-), Lepton Polarization, Light-Cone Qcd, Sum-Rule Analysis, Higgs Doublet Model

URI

https://hdl.handle.net/11511/40562

Journal

PHYSICAL REVIEW D

DOI

https://doi.org/10.1103/physrevd.62.074016

Collections

Department of Physics, Article

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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 -> K*l(+)l(-) decay with polarized K* and new physics effects Alıyev, Tahmasıb; Özpineci, Altuğ; Savcı, Mustafa (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.
Rare B->K*l(+)l(-) decay in light cone QCD Alıyev, Tahmasıb; Savcı, Mustafa; Özpineci, Altuğ (1997-10-01) We investigate the transition form factors for the B-->K*l(+)l(-) (l = mu, tau) decay in light cone QCD. It is found that the light cone and three-point QCD sum rule analyses for some of the form factors for the decay B-->K*l(+)l(-) lead to absolutely different q(2) dependence. The invariant dilepton mass distributions for the B-->K*mu(+)mu(-) and B-->K*tau(+)tau(-) decays and final lepton longitudinal polarization asymmetry, which includes both short-and long-distance contributions, are also calculated.
Vector meson dominance and radiative decays of heavy spin-3/2 baryons to heavy spin-1/2 baryons Alıyev, Tahmasıb; Savcı, Mustafa (2012-04-10) Using the calculated values of the strong coupling constants of the heavy sextet spin-3/2 baryons to sextet and antitriplet heavy spin-1/2 baryons with light vector mesons within the light cone QCD sum rules method, and vector meson dominance assumption, the radiative decay widths are calculated. These widths are compared with the "direct" radiative decay widths predicted in the framework of the light cone QCD sum rules.
Strong Coupling Constants of Heavy Baryons With Light Mesons in QCD Alıyev, Tahmasıb; Savcı, Mustafa (2012-06-21) The strong coupling constants of the heavy spin-1/2 and spin-3/2 baryons with light pseudoscalar and vector mesons are calculated in the framework of the light cone QCD sum rules. Using the symmetry arguments, some structure independent relations among different correlation functions are obtained. It is shown that all possible transitions are described by only one invariant function, whose explicit expression is structure dependent.

Citation Formats

T. Alıyev and M. Savcı, “Probing the sources of CP violation via B -> K*l(+)l(-) decay,” PHYSICAL REVIEW D, pp. 0–0, 2000, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40562.