Light element synthesis constraining the supernova neutrino spectrum

We constrain energy spectra of supernova neutrinos using the ν-process light element synthesis in supernovae and the ¹¹B abundance during Galactic chemical evolution. We calculate supernova nucleosynthesis due to the ν-process assuming that neutrino energy spectra are Fermi-Dirac distributions with zero chemical potential. We investigate the dependence of the ¹¹B yield on the total neutrino energy and the temperature of ν_μ,τ and bar{ν}_μ,τ. From the obtained yields and the contribution to the ¹¹B yield from supernovae constrained by observed abundances and Galactic chemical evolution models, we find an acceptable range of the temperature of ν_μ,τ and bar{ν}_μ,τ of 4.8 MeV to 6.6 MeV.