Neutrino-Induced Fission of Neutron-Rich Nuclei

2003/08/20 by E. Kolbe, K. Langanke, K. -H. Langanke +2 · 2 citations
Physics and Astronomy · #Neutrino Physics Research #Nuclear physics research studies #Particle physics theoretical and experimental studies #astro-ph

paper · pdf · doi:10.1103/physrevlett.92.111101

published as Phys.Rev.Lett.92:111101,2004 · 4 pages, three figures

arxiv created 2003/08/20 · openalex publication_date 2004/03/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We calculate neutrino-induced fission cross sections for selected nuclei with Z=84-92. We show that these reactions populate the daughter nucleus at excitation energies where shell effects are significantly washed out, effectively reducing the fission barrier. If the r process occurs in the presence of a strong neutrino fluence, and electron neutrino average energies are sufficiently high, perhaps as a result of matter-enhanced neutrino flavor transformation, then neutrino-induced fission could lead to significant alteration in the r-process flow in slow outflow scenarios.

Citations

• Measurement of stellar age from uranium decay
• Nuclear weak-interaction processes in stars
• The nu-process
• Weak reactions on 12C within the continuum random phase approximation with partial occupancies
• Neutrino-induced Fission and [ITAL][CLC]r[/CLC][/ITAL]-Process Nucleosynthesis

Cited by

• Cross sections and fragment distributions from neutrino-induced fission on r-process nuclei
• Neutrino [wikipedia]