We calculate the mass shift and thermal decay width of $J/\psi$ near QCD transition temperature $T_c$ by imposing two independent constraints on these variables that can be obtained first solving Schr\"odinger equation second from sum rule approach. While real part potential is determined comparing result for charmonium D meson to model result, imaginary taken proportional perturbative form mul...

We discuss a family of modal logics for reasoning about relational structures of intervals over (usually) linear orders, with modal operators associated with the various binary relations between such intervals, known as Allen’s interval relations. The formulae of these logics are evaluated at intervals rather than points and the main effect of that semantic feature is substantially higher expre...

Embedded clusters and periodic supercell approaches are used to obtain accurate ab initio values for the parameters of an extended t-J Hamiltonian for multilayered cuprates. In-plane and interplane magnetic coupling constants sJ and J'd and hopping integrals st and t'd are explicitly considered for various superconducting multilayered cuprates. For YBa2Cu3O6, results are in good agreement with ...