122151766
Magnetic moments of baryons in broken spin--unitary-spin symmetry
We discuss the symmetry-breaking effects on the magnetic moments of uncharmed baryons in the SU(6) framework. The recently observed low value of the magnetic moment of ..sigma../sup +/ is found to be compatible with the magnetic moments of ..lambda.. and ..xi../sup 0/.
122629163
Higher Order Effects on Radiative Decays of Mesons
120004393
D decays into pseudoscalar and scalar mesons
In this paper, we study the pseudoscalar-scalar meson (PS) weak decays ofD-mesons in the non-relativistic quark model using factorization scheme. Branching ratios for the Cabibbo angle-favored decays are calculated.
120063159
Weak nonleptonic decays of charm baryons emitting scalar mesons
We investigate the weak nonleptonic decays of charm baryons emitting scalar mesons employing the factorization scheme and predict their branching ratios.
119573508
Weak Gamma Decays and the Nonleptonic Weak Hamiltonian
18485133
SU(3){sub flavor} analysis of two-body weak decays of charmed baryons
We study two-body weak decays of charmed baryons {Lambda}{sub c}{sup +}, {Xi}{sub c}{sup +}, and {Xi}{sub c}{sup 0} into an octet or decuplet baryon and a pseudoscalar meson employing the SU(3) flavor symmetry. Using certain measured Cabibbo-favored modes, we fix the reduced amplitudes and predict the branching ratios of various decays of charmed baryons in the Cabibbo-enhanced, -suppressed, and -doubly-suppressed modes. {copyright} {ital 1997} {ital The American Physical Society}
119290519
Minimal weak basis textures and quark mixing data
The phenomenology of the most general quark mass matrices with a minimum of three texture zeros obtained through weak basis (WB) transformations has been discussed within the framework of the standard model. The relationship between the textures, naturalness and WB transformations has also been studied. Adopting a ?hierarchical? parameterization for the quark mass matrix, we have detailed exact relations for the various elements of the quark mixing matrix along with the CP asymmetry angle ?, illustrating the?explicit relationship between the observed hierarchies among the WB quark mass matrices and the quark mixing matrix. Besides exploring the complete parameter space available to the (Mq)11, (q = u, d) elements in these mass matrices, their implications for quark mixing data and CP violation asymmetries have also been explored.
15979251
Texture specific mass matrices with Dirac neutrinos and their implications
Considering Dirac neutrinos and Fritzsch-like texture six zero and five zero mass matrices, detailed predictions for cases pertaining to normal/inverted hierarchy as well as degenerate scenario of neutrino masses have been carried out. All the cases considered here pertaining to inverted hierarchy and degenerate scenario of neutrino masses are ruled out by the existing data. For the normal hierarchy cases, the lower limit of m{sub {nu}{sub 1}} and of s{sub 13} as well as the range of Dirac-like CP violating phase {delta}{sub l} would have implications for the texture specific cases considered here.