ar X iv : n uc l - th / 9 51 00 28 v 1 1 5 O ct 1 99 5 Nuclear phenomena at HERA energies

ar X iv : n uc l - th / 9 31 00 28 v 1 2 1 O ct 1 99 3 An antiproton - proton partial - wave analysis

ar X iv : n uc l - th / 0 51 00 35 v 1 1 1 O ct 2 00 5 Effects of In - Medium NN Cross Sections on Particle Production

The in-medium modification of nucleon-nucleon (NN) cross sections is investigated by means of particle production in heavy ion collisions (HIC) at intermediate energies. In particular, the density dependence of the inelastic cross sections considerably affects the pion and kaon yields and their rapidity distributions. However, the (π/π)and (K/K)-ratios depend only moderately on the in-medium be...

ar X iv : n uc l - th / 0 51 00 19 v 1 6 O ct 2 00 5 Break - up fragments excitation and the freeze - out volume

Abstract We investigate, in microcanonical multifragmentation models, the influence of the amount of energy dissipated in break-up fragments excitation on freeze-out volume determination. Assuming a limiting temperature decreasing with nuclear mass, we obtain for the Xe+Sn at 32 MeV/nucleon reaction [J. D. Frankland et al., Nucl. Phys. A689, 905 (2001); A689, 940 (2001)] a freeze-out volume alm...

ar X iv : n uc l - th / 9 81 00 24 v 1 9 O ct 1 99 8 1 Uncertainties in the Solar Neutrino Flux

I discuss three issues relevant to solar neutrino flux measurements: cross section uncertainties in pp chain reactions, uncertainties in the GALLEX/SAGE response to 7 Be and 51 Cr neutrinos, and the implications of helioseismology for nonstandard suns with mixed cores. A few comments are also offered on νe ↔ ντ oscillations, cosmologically interesting neutrino masses, and recent proposals for s...

ar X iv : n uc l - th / 9 51 00 17 v 1 9 O ct 1 99 5 Searching for three - nucleon resonances

We search for three-neutron resonances which were predicted from pion double charge exchange experiments on 3 He. All partial waves up to J = 5 2 are nonresonant except the J π = 3 2 + one, where we find a state at E = 14 MeV energy with 13 MeV width. The parameters of the mirror state in the three-proton system are E = 15 MeV and Γ = 14 MeV. The possible existence of an excited state in the tr...