Vector interactions inhibit quark-hadron mixed phases in neutron stars

Autor(es)

Lugones, G. ^[1] ; Grunfeld, A. G. ^{[2, 3]}

Afiliação do(s) autor(es)

^[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Ave Estados 5001, BR-09210580 Santo Andre, SP - Brazil

^[2] Consejo Nacl Invest Cient & Tecn, RA-2290 Buenos Aires, DF - Argentina

^[3] Comis Nacl Energia Atom, Dept Fis, Ave Libertador 8250, RA-1429 Buenos Aires, DF - Argentina

• Tipo de documento: Artigo Científico
• Fonte: Physical Review D; v. 104, n. 10 NOV 15 2021.
• Citações Web of Science: 0

Resumo

We investigate the surface tension a-and the curvature energy y of quark matter drops in the MIT bag model with vector interactions. Finite size corrections to the density of states are implemented by using the multiple reflection expansion (MRE) formalism. We find that a-and y are strongly enhanced by new terms arising from vector interactions. With respect to the noninteracting case they are increased by a large factor, which can be as high as similar to 10 when the vector coupling constant g varies within the range used in the literature. This behavior may have major consequences for the hadron-quark mixed phase speculated to exist at neutron star (NS) interiors, which may be totally suppressed or have its extension substantially reduced. (AU)

• Processo FAPESP: 13/10559-5 - Investigação de fenômenos de altas energias e plasmas astrofísicos: teoria, simulações numéricas, observações e desenvolvimento de instrumentação para o Cherenkov Telescope Array (CTA)
• Beneficiário: Elisabete Maria de Gouveia Dal Pino
• Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais