n uc l - th / 9 51 00 27 v 1 1 5 O ct 1 99 5 Chaos and Quantum Chaos in Nuclear Systems 1

- th / 9 51 00 12 v 1 6 O ct 1 99 5 Quantum Chaos in Vibrational Nuclei : the Green Function Approach

We show that the collective vibrational model of atomic nuclei displays quantum chaos. To avoid the problems related to the tunneling effects, a Green function deterministic numerical method has been used to evaluate the energy levels.

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

We argue that current data on nuclear shadowing confirm expectations of the color singlet models of nuclear shadowing. We demonstrate that unitarity constrains require nuclear shadowing for gluons to be very significant already for x ≤ 10 . Physics of coherent diffraction production of vector mesons off light nuclei is also discussed.

ar X iv : n uc l - th / 9 70 70 34 v 1 2 1 Ju l 1 99 7 Quantum Transition from Order to Chaos in the Nuclear Shell Model

We discuss the role of quantum chaos in atomic nuclei. After reviewing the basic assumptions of the nuclear shell model, we analyze the spectral statistics of the energy levels obtained with realistic shell–model calculations in the f p shell. In particular, for Ca isotopes we observe a transition from order to chaos by increasing the excitation energy and a clear quantum signature of the break...

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 / 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...