Abstract
We generalize our virial approach to study spin-polarized neutron matter and the consistent neutrino response at low densities. In the long-wavelength limit, the virial expansion makes model-independent predictions for the density and spin response, based only on nucleon-nucleon scattering data. Our results for the neutrino response provide constraints for random-phase approximation or other model calculations, and we compare the virial vector and axial response to response functions used in supernova simulations. The virial expansion is suitable to describe matter near the supernova neutrinosphere, and this work extends the virial equation of state to predict neutrino interactions in neutron matter.
| Original language | English |
|---|---|
| Pages (from-to) | 326-332 |
| Number of pages | 7 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 642 |
| Issue number | 4 |
| DOIs | |
| State | Published - 16 Nov 2006 |
| Externally published | Yes |
Bibliographical note
Funding Information:We thank Isaac Vidana for providing us with the Brueckner results. This work is supported by the US Department of Energy under Grants Nos. DE-FG02-87ER40365 and DE-FG02-97ER41014.
Funding
We thank Isaac Vidana for providing us with the Brueckner results. This work is supported by the US Department of Energy under Grants Nos. DE-FG02-87ER40365 and DE-FG02-97ER41014.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | DE-FG02-97ER41014, DE-FG02-87ER40365 |
Keywords
- Low-density neutron matter
- Neutral-current neutrino scattering
- Virial expansion