Fusion Hindrance and Pauli Blocking in 58Ni + 64Ni

Bose-Enhancement and Pauli-Blocking Effects in Transport Models

The ability of semi-classical transport models to correctly simulate Pauli blocking and Bose enhancement is discussed. In the context of simple quantum mechanical systems, it is shown that using (1 ± f) enhancements is inadequate to describe systems far from equilibrium. The relaxation of (1 + f) descriptions toward equilibrium is studied both in the context of simple models, including a hot pi...

Effect of Pauli repulsion on fusion

epl draft Optical traps for electron produced by Pauli blocking

We propose a mechanism to trap electrons in a semiconductor using counterpropagating laser beams. The trapping comes from Pauli blocking between electron and virtual exciton coupled to unabsorbed photons. Electron exchange allows for the possibility of momentum transfer between photon and electron. This leads to a sinusoidal trap for electron with a period determined by the laser beam modulatio...

Enhanced fusion-evaporation cross sections in neutron-rich 132Sn on 64Ni.

Evaporation residue cross sections have been measured with neutron-rich radioactive 132Sn beams on 64Ni in the vicinity of the Coulomb barrier. The average beam intensity was 2 x 10(4) particles per second and the smallest cross section measured was less than 5 mb. Large sub-barrier fusion enhancement was observed. Coupled-channel calculations taking into account inelastic excitation significan...

Centrality dependence of K+ flow in 58Ni + 58Ni collisions at 1.91A GeV measured with FOPI detector

Kaon production in Ni + Ni heavy-ion collisions at 1.91A GeV was measured by the FOPI collaboration at the heavy-ion synchrotron (SIS) at GSI making use of the newly installed MMRPC barrel [1]. Sub-threshold kaon production is expected to provide valuable insight into the properties of hadrons at high density [2]. The kaon-nucleon potential is expected to enhance the in-medium effective mass fo...