Recent work in two brane Randall-Sundrum models has shown that the radion can drive parametric amplification of particles on the TeV brane leading to a stage of cosmology similar to preheating. We consider radion induced preheating as a mechanism for electroweak scale baryogenesis and estimate the baryon to entropy ratio for some regions of parameter space. We also predict an upper bound for th...

Preheating after inflation may lead to non-thermal phase transitions with symmetry restoration. These phase transitions may occur even if the total energy density of fluctuations produced during reheating is relatively small as compared with the vacuum energy in the state with restored symmetry. As a result, in some inflationary models one encounters a secondary, non-thermal stage of inflation ...

Abstract We consider dark matter production during the inflaton oscillation epoch. It is conceivable that renormalizable interactions between and may be negligible. In this case, leading role played by higher dimensional operators generated gravity thus suppressed Planck scale. focus on dim-6 study corresponding particle in perturbative non-perturbative regimes. find rate dominated non-derivati...

RBC velocity and vessel lumen diameter were measured in individual microvessels in normal (mature granulation) and neoplastic (VX2 carcinoma) tissues grown in a transparent rabbit ear chamber. Blood flow rates were determined before, during, and after local hyperthermia treatments at 40-52 degrees for 1 hr. Blood flow in normal tissue increased dramatically with temperature, but stasis occurred...

When the interbrane separation in the compact Randall-Sundrum model is stabilized using the Goldberger-Wise mechanism, a potential is generated for the four-dimensional field, the radion, that encodes this separation. Coherent oscillations of the radion in the early universe will produce an exponential growth in the number of brane particles due to parametric amplification. We describe the cond...

Leptogenesis constitues a very simple scenario to achieve the baryon asymmetry that we observe today. It requires only the presence of right handed neutrinos (which arise very naturally in many extensions of the Standard Model) and depends crucially on the mechanism responsible for their production. In particular, when their mass exceeds the inflaton mass (10 GeV in chaotic inflation) only non ...

Low temperature (<1000 °C) preheating combustion technique with low NOx emissions has been applied to semi-coke and make a good success. However, the de-NOx potential of higher (>1000 not reported. Aiming acquire lower emission, tested on two-stage drop-tube furnace in this paper. This work mainly focused these two factors NO emission burnout characteristic. Results showed that could further en...