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18 papers · 1 filter
Density fluctuation in extended inflation
S. Mallik, D. Rai Chaudhuri
We examine the calculation of density perturbation at large scales in the inflationary scenario. The formula for its magnitude is reviewed from first principles and applied to the…
Thermal Masses and Equilibrium Rates in the Quark Gluon Phase
Jane Alam, Pradip Roy, Sourav Sarkar +2
We apply the momentum integrated Boltzmann transport equation to study the time evolution of various quark flavours in the central region of ultra-relativistic heavy ion collisions…
Soft Electromagnetic Radiations from Relativistic Heavy Ion Collisions
Dipali Pal, Pradip Kumar Roy, Sourav Sarkar +2
The production of low mass dileptons and soft photons from thermalized Quark Gluon Plasma (QGP) and hadronic matter in relativistic heavy ion collisions is evaluated. A boost invar…
Non-relativistic Model for the Semileptonic Λ_b \to Λ_c Decay
Debrupa Chakraverty, Triptesh De, Binayak Dutta-Roy +1
We calculate the decay width for in the frame work of a nonrelativistic quark (NRQ) model of heavy baryons where the light quarks play the role of spectato…
Dilepton Yield in Heavy-Ion Collisions with Bose Enhancement of Decay Width
Abhee K. Dutt-Mazumder, Jan-e Alam, Binayak Dutta-Roy +1
The excess of low invariant mass dilepton yield in heavy ion collisions arising from reduction in the rho meson mass at finite temperatures is partially suppressed because of the e…
Dynamic Response of Ising System to a Pulsed Field
M. Acharyya, J. K. Bhattacharjee, B. K. Chakrabarti
The dynamical response to a pulsed magnetic field has been studied here both using Monte Carlo simulation and by solving numerically the meanfield dynamical equation of motion for…