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Baryogenesis during reheating in natural inflation and comments on spontaneous baryogenesis
We calculate the baryon asymmetry created by the decay of a pseudo Nambu-Goldstone boson whose interactions violate baryon number conservation. Our results are in disagreement with previous resultsExpand
Cosmological constraints on the scale of supersymmetry breaking
Abstract We consider the cosmological and astrophysical constraints on the decay of massive E 8 × E 8 ′ superstring axions associated with the hidden sector. We find that decay lifetimes greater thanExpand
New supersymmetric contributions to t-->cV
We calculate the electroweak-like one-loop supersymmetric contributions to the rare and flavor-violating decay of the top quark into a charm quark and a gauge boson: $t->c V$, with $V=\gamma,Z,g$. WeExpand
Effective chemical potential in spontaneous baryogenesis
Models of spontaneous baryogenesis have an interaction term $\partial_\mu\theta j^\mu_B$ in the Lagrangian, where $j^\mu_B$ is the baryonic current and $\theta$ can be a pseudo-Nambu-Goldstone boson.Expand
The Angular dependence of the three point correlation function of the cosmic microwave background radiation as predicted by inflationary cosmologies
Inflationary models predict a definite, model-independent, angular dependence for the three-point correlation function of ΔT/T at large angles (≥1°) which we calculate. The overall amplitude is modelExpand
Power spectrum generated during inflation
Recently there have been differing viewpoints on how to evaluate the curvature power spectrum generated during inflation. Since the primordial curvature power spectrum is the seed for structureExpand
Perturbative reheating and gravitino production in inflationary models
The low reheat temperature at the end of inflation from the gravitino bound constrains the creation of heavy Majorana neutrinos associated with models of leptogenesis. However, a detailed view of theExpand
Models of leptogenesis are constrained by the low reheat temperature at the end of reheating associated with the gravitino bound. However, a detailed view of reheating, in which the maximumExpand
Falsifying leptogenesis for a TeV scale W R at the LHC
We point out that the discovery of a right-handed charged gauge boson $W_R^\pm$ with mass of around a few TeV, for example through a signal of two leptons and two jets that has been reported by CMSExpand
Electroweak baryogenesis in a cold universe
Abstract We discuss the possibility of generating the baryon asymmetry of the Universe when the temperature of the Universe is much below the electroweak scale. As discussed by Nagatani recently theExpand