13.12.2017

Neutrino-nucleus scattering at supernova energies

Accurate estimates of nuclear responses to supernova neutrinos are needed for studies of neutrino suhonen2.pngproperties and modeling of supernovae and nucleosynthesis of heavy elements. The related scattering events can be classified to neutral-current (NC) [1] and charged-current (CC) processes [2]. A striking result of [2] is that, unlike for the neutrino scattering, for the antineutrino scattering the neutrino-averaged cross section depends strongly on the hierarchy (normal or inverted) of the neutrinos. This feature of the antineutrino scattering is presented in Figure 2. Recently we have also performed a study of the charged-current scattering of neutrinos and antineutrinos from the stable even-even lead isotopes by using three different Skyrme interactions [3]. This is important for the on-going HaLO (Helium and Lead Observatory) experiment at SNOLAB in Sudbury, Canada.

[1] W. Almosly, E. Ydrefors and J. Suhonen, J. Phys. G: Nucl. Part. Phys. 42 (2015) 025106
[2] W. Almosly, E. Ydrefors and J. Suhonen, J. Phys. G: Nucl. Part. Phys 42 (2015) 095106
[3] W. Almosly, B. G. Carlsson, J. Suhonen, J. Toivanen and E. Ydrefors, Phys. Rev. C 94 (2016) 044614