Neutrino-nucleus reactions based on new shell model Hamiltonians | Zendy

Toshio Suzuki | Zendy; Satoshi Chiba | Zendy; Takashi Yoshida | Zendy; Toshitaka Kajino | Zendy; Takaharu Otsuka | Zendy

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Neutrino-nucleus reactions based on new shell model Hamiltonians

Author(s) -

Toshio Suzuki,

Satoshi Chiba,

Takashi Yoshida,

Toshitaka Kajino,

Takaharu Otsuka

Publication year - 2006

Publication title -

physical review c

Language(s) - English

Resource type - Journals

eISSN - 1089-490X

pISSN - 0556-2813

DOI - 10.1103/physrevc.74.034307

Subject(s) - physics , neutrino , supernova , isospin , hamiltonian (control theory) , shell model , particle physics , nuclear physics , nucleus , branching fraction , atomic physics , quantum mechanics , mathematical optimization , mathematics , biology , microbiology and biotechnology

A new shell model Hamiltonian for p-shell nuclei which properly takes intoaccount important roles of spin-isospin interactions is used to obtain crosssections of neutrino-^12C reactions induced by decay-at-rest (DAR) neutrinos aswell as supernona neutrinos. Branching ratios to various decay channels arecalculated by the Hauser-Feshbach theory. Neutrino-^4He reactions are alsoinvestigated by using recent shell model Hamiltonians. The reaction crosssections are found to be enhanced for both ^12C and ^4He compared with previouscalculations. As an interesting consequence of this, a possible enhancement ofthe production yields of light elements, ^7Li and ^11B, during supernovaexplosions is pointed out.Comment: 11 pages, 14 eps-figures, to be published in Physical Review C (in press

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