Squark flavor implications from $ \bar{B} \to {\bar{K}^{{( * )}}}{l^{ + }}{l^{ - }} $

New Constraint on Squark Flavor Mixing From

We obtain a new constraint on the CP-violating flavor mixing between the left-handed top scalar quark (˜ t L) and charm scalar quark (˜ c L), by considering a chargino loop contribution to chromo-electric dipole moment of strange quark, which is limited by the electric dipole moment of the neutron and atoms. It is found that the flavor mixing should be suppressed to the level of O(0.1) for the ...

Flavor Symmetry L μ − L τ and quasi – degenerate Neutrinos

Current data implies three simple forms of the neutrino mass matrix, each corresponding to the conservation of a non–standard lepton charge. While models based on Le and Le−Lμ−Lτ are well–known, little attention has been paid to Lμ−Lτ . A low energy mass matrix conserving Lμ−Lτ implies quasi–degenerate light neutrinos. Moreover, it is μ–τ symmetric and therefore (in contrast to Le and Le − Lμ −...

Immunomostimulant phytoconstituents from Mangifera indica L. bark oil

The present study was undertaken to isolate oil from Mangifera indica bark, Identification of various phytoconstituents and screening of immunostimulant activity in experimental animals. Methods: Immunostimulant activity was evaluated in rats as well as in mice by determining neutrophil adhesion to nylon threads and phagocytic index. Levamisole at a dose of 50 mg/kg, b.w was used as standard dr...

Pentacyclic triterpenes from the stem bark of Mimusops elengi L.

A new farnane-type pentacyclic triterpene, farnan-2-one-3 beta-ol (mimusopfarnanol), was isolated from the stem bark of Mimusops elengi L. along with the known triterpenoids, farnan-3-one, olean-18-en-2-one-3-ol and lup-20 (29)-en-3 beta-ol and their structures have been characterized on the basis of spectral data analyses and chemical reactions.

Polarized light - flavor antiquarks from Drell - Yan processes of h + ~ N → ~ l ± + l ∓ +