Bulk viscosity in kaon condensed matter
| dc.creator | Chatterjee, Debarati | |
| dc.creator | Bandyopadhyay, Debades | |
| dc.date | 2007-02-09 | |
| dc.date | 2007-05-30 | |
| dc.date.accessioned | 2026-07-07T11:21:08Z | |
| dc.date.available | 2026-07-07T11:21:08Z | |
| dc.description | We investigate the effect of $K^-$ condensed matter on bulk viscosity and r-mode instability in neutron stars. The bulk viscosity coefficient due to the non-leptonic process $n \rightleftharpoons p + K^-$ is studied here. In this connection, equations of state are constructed within the framework of relativistic field theoretical models where nucleon-nucleon and kaon-nucleon interactions are mediated by the exchange of scalar and vector mesons. We find that the bulk viscosity coefficient due to the non-leptonic weak process in the condensate is suppressed by several orders of magnitude. Consequently, kaon bulk viscosity may not damp the r-mode instability in neutron stars. | |
| dc.description | LaTeX, 32 pages, 9 figures; two tables and one new figure are added; some figures are modified and discussed in section III; version to appear in Phys. Rev. D | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0702259 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0702259 | |
| dc.identifier | Phys.Rev.D75:123006,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.123006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/194175 | |
| dc.subject | Astrophysics | |
| dc.title | Bulk viscosity in kaon condensed matter | |
| dc.type | text |