O. Yilmaz

Quantum statistical effects on fusion dynamics of heavy ions

In order to describe the fusion of two very heavy nuclei at near barrier energies, a generalized Langevin approach is proposed, which incorporates the quantum statistical fluctuations in accordance with the fluctuation and dissipation theorem. It is illustrated that the quantum statistical effects introduce an enhancement of the formation of compound nucleus, though the quantum enhancement is somewhat less pronounced as indicated in the previous calculations.

The Coupling constant g(rho sigma gamma) as derived from QCD sum rules

We employ QCD sum rules to calculate the coupling constant g

Collisional Damping of Nuclear Collective Vibrations in a Non-Markovian Transport Approach ∗

_{\rho\sigma\gamma}

Properties of Bc-meson in QCD sum rules

by studying the three point

The decay ρ0→π0π0γ and the role of σ-meson

{\rho\sigma\gamma}

Nucleon exchange in heavy-ion collisions within a stochastic mean-field approach

-correlation function. Our results is consistent with the value of this coupling constant obtained using vector meson dominance of the electromagnetic current and the experimental

The role of σ-meson in ω→ππγ decays and the coupling constant gωσγ

\rho^0

On the collisional damping of giant dipole resonance

-photoproduction data.

An analysis of f0–σ mixing in light cone QCD sum rules

A detailed derivation of the collisional widths of collective vibrations is presented in both quantal and semiclassical frameworks by considering the linearized limits of the extended time-dependent Hartree-Fock and the Boltzmann-Uehling-Uhlenbeck model with a non-Markovian binary collision term. Damping widths of giant dipole and giant quadrupole excitations are calculated by employing an effective Skyrme force, and the results are compared with giant dipole resonance measurements in lead and tin nuclei at finite temperature. {copyright} {ital 1998} {ital The American Physical Society}

Multinucleon transfer in central collisions of U 238 + U 238

SummaryWe have studied the masses of the scalar, pseudoscalar and vector states of Bc-meson and their decay constants in the framework of the QCD sum rules.