In multiple inflation scenario having two inflations with an intermediate matter-dominated phase, the power spectrum is estimated to be enhanced on scales smaller than the horizon size at the beginning of the second inflation, k k b. We require k b …
We present a method to calculate Lyapunov exponents of rigid diatomic molecules in three dimensions (12N-dimensional phase space). The spectra of Lyapunov exponents are obtained for 32 rigid diatomic molecules interacting through the …
We present the first results for masses of spin-3/2 N and Δ baryons in lattice QCD using fat-link irrelevant clover fermions. Spin-3/2 interpolating fields, providing overlap with both spin-3/2 and spin-1/2 states, are considered. In the isospin-1/2 …
We study charmonium using the standard relativistic formalism in the quenched approximation, on a set of lattices with isotropic lattice spacings ranging from 0.1 to 0.04 fm. We concentrate on the calculation of the hyperfine splitting between ηc and …
We present first results for masses ofspin-3/2 baryons in lattice QCD, using a novel fat-link clover fermion action in which only the irrelevant operators are constructed using fat links. In theisospin-1/2 sector; we observe, after appropriate spin …
The responses of quark condensates to the chemical potential, as a function of temperature T and chemical potential μ, are calculated within the Nambu–Jona-Lasinio (NJL) model. We compare our results with those from the recent lattice QCD simulations …
Quark-antiquark 4-point correlators in the mesonic channels at are studied on the lattice to obtain insight into the hadronic and plasma physics of QCD.
Responses of screening mass of the pseudoscalar meson and chiral condensate in lattice QCD are investigated. On a 16× 8^ 2× 4 lattice with two flavors of staggered quarks the first and second responses below and above T_C are evaluated. Different …
Using the Nambu—Jona-Lasinio (NJL) model we study chemical potential response of the pion and kaon masses as a function of temperature and chemical potential, ie,∂ m∂ μ (T, μ). First, we obtain the responses assuming the vector—axial vector coupling …