Double-lepton polarizations in B -> l(+)l(-)gamma decay

Download
2005-02-01
Double-lepton polarization asymmetries in the B-->l(+)l(-)gamma decay are calculated using the most general, model independent form of the effective Hamiltonian including all possible forms of the interaction. The dependencies of the asymmetries on new Wilson coefficients are investigated. The detectability of the averaged double-lepton polarization asymmetries at LHC is also discussed.
PHYSICAL REVIEW D

Suggestions

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.
Double-lepton polarization asymmetries in the exclusive B ->rho l+l(-) decay beyond the standard model
Alıyev, Tahmasıb; Savcı, Mustafa (American Physical Society (APS), 2005-08-01)
The double-lepton polarization asymmetries in B ->rho l(+)l(-) decay are analyzed in a model independent framework. The general expressions for nine double-polarization asymmetries are calculated. It is shown that the study of the double-lepton polarization asymmetries proves to be a very useful tool in looking for new physics beyond the standard model.
Hamiltonian electric/magnetic duality and Lorentz invariance
Deser, Stanley; Sarıoğlu, Bahtiyar Özgür (Elsevier BV, 1998-01-01)
In (3+1) Hamiltonian form, the conditions for the electric/magnetic invariance of generic self-interacting gauge vector actions and the definition of the duality generator are obvious. Instead, (3+1) actions are not intrinsically Lorentz invariant. Imposing the Dirac–Schwinger stress tensor commutator requirement to enforce the latter yields a differential constraint on the Hamiltonian which translates into the usual Lagrangian form of the duality invariance condition obeyed by Maxwell and Born-Infeld theor...
Sigma(Q)Lambda(Q)pi coupling constant in light cone QCD sum rules
Azizi, K.; Bayar, M.; Özpineci, Altuğ (American Physical Society (APS), 2009-03-01)
The strong coupling constants g(Sigma Q)Lambda(Q)pi (Q=b and c) are studied in the framework of the light cone QCD sum rules using the most general form of the baryonic currents. The predicted coupling constants are used to estimate the decay widths for the Sigma(Q)->Lambda(Q)pi decays which are compared with the predictions of the other approaches and existing experimental data.
Mixing angle of hadrons in QCD: A new view
Alıyev, Tahmasıb; Özpineci, Altuğ (American Physical Society (APS), 2011-01-19)
A new method for calculation of the mixing angle between the hadrons within QCD sum rules is proposed. In this method, the mixing is expressed in terms of quark and gluon degrees of freedom. As an application, the detailed calculation of the mixing angle between heavy cascade baryons Xi(Q) and Xi'(Q), Q = c, b is presented and it is found that the mixing angle between Xi(b) (Xi(c)) and Xi'(b) (Xi'(c)) is given by theta(b) = 6.4 degrees +/- 1.8 degrees (theta(c) = 5.5 degrees +/- 1.8 degrees).
Citation Formats
T. Alıyev and M. Savcı, “Double-lepton polarizations in B -> l(+)l(-)gamma decay,” PHYSICAL REVIEW D, pp. 0–0, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36145.