https://doi.org/10.1140/epja/i2011-11001-0
Regular Article - Theoretical Physics
Magnetized color flavor locked state and compact stars
1
Instituto Superior de Engenharia de Lisboa, Rua Conselheiro Emıdio Navarro, 1959-007, Lisboa, Portugal
2
Centro de Fısica Teórica de Partıculas, Instituto Superior Técnico, Avenida Rovisco Pais, 1049-001, Lisboa, Portugal
3
Universidad de la Habana, Facultad de Fısica, San Lázaro y L, 10400, La Habana, Cuba
4
Instituto de Cibernética, Matemática y Fısica (ICIMAF), Calle E esq 15 No. 309 Vedado, 10400, La Habana, Cuba
Received:
14
May
2010
Accepted:
19
November
2010
Published online:
6
January
2011
The stability of the color flavor locked phase in the presence of a strong magnetic field is investigated within the phenomenological MIT bag model, taking into account the variation of the strange quark mass, the baryon density, the magnetic field, as well as the bag and gap parameters. It is found that the minimum value of the energy per baryon in a color flavor locked state at vanishing pressure is lower than the corresponding one for unpaired magnetized strange quark matter and, as the magnetic field increases, the energy per baryon decreases. This implies that magnetized color flavor locked matter is more stable and could become the ground state inside neutron stars. The mass-radius relation for such stars is also studied.
© SIF, Springer-Verlag Berlin Heidelberg, 2011
