We reexamine the idea that bilinear R-parity violating couplings can be responsible for leptogenesis. We prove that, to have lepton number violation before the electroweak phase transition, misalignment between the lepton-Higgsino and slepton-Higgs sectors must be involved. The processes that generate a lepton asymmetry are bino or wino decays into a lepton-Higgs and slepton-Higgsino final stat...

We analyze muon decay using the most general local, derivative-free, Lorentz-invariant, leptonnumber-nonconserving interactions. We show that, neglecting neutrino masses, there is a one-toone correspondence between the coupling constants in the lepton-number-conserving case and combinations of coupling constants in the lepton-number-violating case; i.e., it is not possible, even in principle, t...

A three-family non-supersymmetric model with U(3)3 gauge symmetry is analyzed in the context of intersecting D-branes. This is equivalent to the ‘trinification’ model extended by three U(1) factors which survive as global symmetries in the low energy effective model. The Standard Model fermions are accommodated in the three possible bifundamental multiplets represented by strings with endpoints...

Abstract. We discuss flavour dependent lepton asymmetries in the Exceptional Supersymmetric Standard Model (E6SSM). In the E6SSM, the right-handed neutrinos do not participate in gauge interactions, and they decay into leptons and leptoquarks. Their Majorana nature allows violation of lepton number. New particles and interactions can result in substantial lepton asymmetries, even for scales as ...

Pestalotiopsis microspora occurs as a range of strains in bald cypress, Taxodium distichum. The organisms live as endophytes in the bark, phloem and xylem, and isolates show differences in cultural and microscopic characteristics on common laboratory media. Many of these fungi make taxol as determined by the reactivity of partially purified culture extracts with specific monoclonal antibodies a...

Present measurements of b→cτν and b→uτν transitions differ from the standard model predictions of lepton flavor universality by almost 4σ. We examine new physics interpretations of this anomaly. An effective field theory analysis shows that minimal flavor violating models are not preferred as an explanation, but are also not yet excluded. Allowing for general flavor violation, right-right vecto...

Dried ethanol extract of Paspalum scrobiculatum grain has powerful tranquillizing action in animals (1, 2). It has been successfully used as a major tranquillizer, in short-term clinical trials,in acutely agitated schizophrenic patients (3-7). These clinical trials were conducted on the basis of acute and subacute toxicity studies carried out by Bhide (8) in mice and dogs, and by Shah et al (6)...