Neutrino-induced neutron spallation and the site of the r-process
| dc.creator | Qian, Yong-Zhong | |
| dc.date | 1997-12-30 | |
| dc.date.accessioned | 2026-07-07T05:42:14Z | |
| dc.date.available | 2026-07-07T05:42:14Z | |
| dc.description | All of the actinides and roughly half the natural abundance of elements with mass number A > 70 come from the rapid neutron capture process, or the r-process. If the r-process, as suggested by many, occurs deep in a supernova, then it is under the influence of an intense neutrino flux. Here we discuss the effects of both charged-current and neutral-current neutrino interactions on the r-process. We show that the multiple-neutron emission induced by both kinds of neutrino interactions can affect the observed r-process abundance pattern significantly. In particular, we find that five nuclei below the r-process abundance peak at A = 195 may be entirely attributed to the neutrino-induced neutron spallation processes following the r-process freeze-out. Furthermore, the deduced neutrino fluence agrees with the conditions in the recent supernova r-process model. These results strongly argue that the r-process occurs in supernovae. They also provide a sensitive probe for the conditions at the supernova r-process site. | |
| dc.description | 10 pages, 2 Postscript figures, use sprocl.sty, Invited talk given at the International Conference on Fission and Properties of Neutron-Rich Nuclei, Sanibel Island, Florida (November 10-15, 1997) | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9712080 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9712080 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/82856 | |
| dc.subject | Nuclear Theory | |
| dc.subject | Astrophysics | |
| dc.title | Neutrino-induced neutron spallation and the site of the r-process | |
| dc.type | text |