Analyzing astrophysical neutrino signals using realistic nuclear structure calculations and the convolution procedure

Details Analyzing astrophysical neutrino signals using realistic nuclear structure calculations and the convolution procedure Analyzing astrophysical neutrino signals using realistic nuclear structure calculations and the convolution procedure

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011phrvc..84f4620t&link_type=abstract

Physical Review C, vol. 84, Issue 6, id. 064620

Physics

Nuclear Physics

Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments, Weak-Interaction And Lepton Aspects, Neutrino Scattering, Supernovae

Scientific paper

Convoluted differential and total cross sections of inelastic ν scattering on 128,130Te isotopes are computed from the original cross sections calculated previously using the quasiparticle random-phase approximation. We adopt various spectral distributions for the neutrino energy spectra such as the common two-parameter Fermi-Dirac and power-law distributions appropriate to explore nuclear detector responses to supernova neutrino spectra. We also concentrate on the use of low-energy β-beam neutrinos, originating from boosted β--radioactive 6He ions, to decompose original supernova (anti)neutrino spectra that are subsequently employed to simulate total cross sections of the reactions 130Te(ν˜,ν˜')130Te*. The concrete nuclear regimes selected, 128,130Te, are contents of the multipurpose CUORE and COBRA rare event detectors. Our present investigation may provide useful information about the efficiency of the Te detector medium of the above experiments in their potential use in supernova neutrino searches.

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