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4 papers · 2 filters
Form factors and branching ratio for the B -> l nu gamma decay
Mariam Saleh Khan, M. Jamil Aslam, Amjad Hussain Shah Gilani +1
Form factors parameterizing radiative leptonic decays of heavy mesons for photon energy are computed in the language of dispersion relation. The contrib…
Neutrinos: recent developments and origin of neutrino mass matrix
Riazuddin
Certainly one of the most exciting areas of research at present is neutrino physics. The neutrinos are fantastically numerous in the universe and as such they have bearing on our u…
SU_L(4) x U(1) model for electroweak unification
Fayyazuddin, Riazuddin
After some general remarks about SU_L(4) electroweak unification, the model is extended to SU_L(4)xU_X(1) to accomodate fractionally charged quarks. The unification scale is expect…
Final state phases in B -> Dπ, \bar{D}πdecays and CP-asymmetry
Fayyazuddin
Final state phases δ_f and δ_f' in B-> D pi, barD pi decays are shown to be equal i.e. δ=δ_f-δ_f' = 0. Thus CP-violating asymmetry A(t) is independent of final state phases. The es…