Recent Developments on Kaon Condensation and Its Astrophysical Implications
| dc.creator | Brown, Gerald E. | |
| dc.creator | Lee, Chang-Hwan | |
| dc.creator | Rho, Mannque | |
| dc.date | 2007-08-23 | |
| dc.date | 2008-02-29 | |
| dc.date.accessioned | 2026-07-07T11:42:00Z | |
| dc.date.available | 2026-07-07T11:42:00Z | |
| dc.description | We discuss three different ways to arrive at kaon condensation at n_c = 3 n_0 where n_0 is nuclear matter density: (1) Fluctuating around the n=0 vacuum in chiral perturbation theory, (2) fluctuating around n_VM near the chiral restoration density n_chi where the vector manifestation of hidden local symmetry is reached and (3) fluctuating around the Fermi liquid fixed point at n_0. They all share one common theoretical basis, "hidden local symmetry." We argue that when the critical density n_c < n_chi is reached in a neutron star, the electrons turn into K^- mesons, which go into an S-wave Bose condensate. This reduces the pressure substantially and the neutron star goes into a black hole. Next we develop the argument that the collapse of a neutron star into a black hole takes place for a star of M = 1.5 M_sun. This means that Supernova 1987A had a black hole as result. We also show that two neutron stars in a binary have to be within 4% of each other in mass, for neutron stars sufficiently massive that they escape helium shell burning. For those that are so light that they do have helium shell burning, after a small correction for this they must be within 4% of each other in mass. Observations support the proximity in mass inside of a neutron star binary. The result of strangeness condensation is that there are 5 times more low-mass black-hole, neutron-star binaries than double neutron-star binaries although the former are difficult to observe. | |
| dc.description | 42 pages, latex, 6 figures | |
| dc.identifier | https://arxiv.org/abs/0708.3137 | |
| dc.identifier | http://arxiv.org/abs/0708.3137 | |
| dc.identifier | Phys.Rept.462:1-20,2008 | |
| dc.identifier | doi:10.1016/j.physrep.2008.03.002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/200733 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.subject | Nuclear Theory | |
| dc.title | Recent Developments on Kaon Condensation and Its Astrophysical Implications | |
| dc.type | text |