Nuclear reactions in hot stellar matter and nuclear surface deformation

Details Nuclear reactions in hot stellar matter and nuclear surface deformation Nuclear reactions in hot stellar matter and nuclear surface deformation

2006-11-13

arxiv.org/abs/astro-ph/0611382v1

Phys.Rev.C74:055804,2006

Astronomy and Astrophysics

Astrophysics

12 pages, 10 figures

Scientific paper

10.1103/PhysRevC.74.055804

Cross-sections for capture reactions of charged particles in hot stellar matter turn out be increased by the quadrupole surface oscillations, if the corresponding phonon energies are of the order of the star temperature. The increase is studied in a model that combines barrier distribution induced by surface oscillations and tunneling. The capture of charged particles by nuclei with well-deformed ground-state is enhanced in stellar matter. It is found that the influence of quadrupole surface deformation on the nuclear reactions in stars grows, when mass and proton numbers in colliding nuclei increase.

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