The role of strange sea quarks on neutrino-nucleus reactions in Superkamiokande and in the supernova r-process
E. Kolbe1 - K. Langanke2 - F.-K. Thielemann1
1 Departement für Physik und Astronomie, Universität Basel, Basel,
2 Institute for Physics and Astronomy and Theoretical Center for Astrophysics, University of Aarhus, Aarhus, Denmark
Received: 30 April 1998 / Revised version: 10 August 1998 Communicated by W. Weise
We study the influence of a strange axial vector form factor Gs of the nucleon on the neutrino-induced proton and neutron knockout of 16O. In particular, we calculate how much might affect the recently proposed signal for supernova and neutrinos in the Superkamiokande detector. We discuss whether Superkamiokande might be able to determine the value of Gs in a hypothetical neutrino-beam experiment. Finally we comment on the possible effect might have on neutrino-nucleus cross sections in the neutrino-driven wind model for the nuclear r-process.
25.30.Pt Neutrino scattering