Two-solar-mass hybrid stars: A two model description using the Nambu–Jona-Lasinio quark model
| العنوان: | Two-solar-mass hybrid stars: A two model description using the Nambu–Jona-Lasinio quark model |
|---|---|
| المؤلفون: | Renan Câmara Pereira, Constança Providência, Pedro Costa |
| المصدر: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| بيانات النشر: | American Physical Society, 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Physics, Particle physics, Top quark, Nuclear Theory, 010308 nuclear & particles physics, High Energy Physics::Lattice, High Energy Physics::Phenomenology, FOS: Physical sciences, Down quark, Constituent quark, Top quark condensate, 01 natural sciences, Bottom quark, Nuclear Theory (nucl-th), Nuclear physics, Strange matter, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Quark star, 0103 physical sciences, Up quark, High Energy Physics::Experiment, 010306 general physics |
| الوصف: | Hybrid stars with a quark phase described by the Nambu$-$Jona-Lasinio model are studied. The hadron-quark model used to determine the stellar matter equation of state favors the appearance of quark matter: the coincidence of the deconfinement and chiral transitions and a low vacuum constituent quark mass. These two properties are essential to build equations of state that predict pure quark matter in the center of neutron stars. The effect of vector-isoscalar and vector-isovector terms is discussed, and it is shown that the vector-isoscalar terms are necessary to describe 2$M_\odot$ hybrid stars, and the vector-isovector terms result in larger quark cores and a smaller deconfinement density. 17 pages, 4 figures, 7 tables; PRD version |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf520b0dde80f65932a227ffd361b9d0 https://hdl.handle.net/10316/46531 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....bf520b0dde80f65932a227ffd361b9d0 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |