Coherent and Incoherent Neutral Current Scattering for Supernova Detection

الملخص EN

The total cross sections as well as the neutrino event rates are calculated in the neutral current neutrino scattering off 40Ar and 132Xe isotopes at neutrino energies (Ev<100 MeV).

The individual contribution coming from coherent and incoherent channels is taking into account.

An enhancement of the neutral current component is achieved via the coherent (0gs+→0gs+) channel which is dominant with respect to incoherent (0gs+→Jf) one.

The response of the above isotopes as a supernova neutrino detection has been considered, assuming a two parameter Fermi-Dirac distribution for the supernova neutrino energy spectra.

The calculated total cross sections are tested on a gaseous spherical TPC detector dedicated for supernova neutrino detection.