Change search
ReferencesLink to record
Permanent link

Direct link
Neutrino processes in partially degenerate neutron matter
Show others and affiliations
2012 (English)In: Astrophysical Journal, ISSN 0004-637X, E-ISSN 1538-4357, Vol. 758, no 1, 34- p.Article in journal (Refereed) Published
Abstract [en]

We investigate neutrino processes for conditions reached in simulations of core-collapse supernovae. In regions where neutrino-matter interactions play an important role, matter is partially degenerate, and we extend earlier work that addressed the degenerate regime. We derive expressions for the spin structure factor in neutron matter, which is a key quantity required for evaluating rates of neutrino processes. We show that, for essentially all conditions encountered in the post-bounce phase of core-collapse supernovae, it is a very good approximation to calculate the spin relaxation rates in the nondegenerate limit. We calculate spin relaxation rates based on chiral effective field theory interactions and find that they are typically a factor of two smaller than those obtained using the standard one-pion-exchange interaction alone.

Place, publisher, year, edition, pages
2012. Vol. 758, no 1, 34- p.
Keyword [en]
dense matter, neutrinos, stars: massive, supernovae: general
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-104692DOI: 10.1088/0004-637X/758/1/34ISI: 000309520500034ScopusID: 2-s2.0-84866910583OAI: diva2:567755

QC 20121114

Available from: 2012-11-14 Created: 2012-11-09 Last updated: 2013-08-27Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus
By organisation
Nordic Institute for Theoretical Physics NORDITA
In the same journal
Astrophysical Journal
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 21 hits
ReferencesLink to record
Permanent link

Direct link