Quark-hadron phase transition in protoneutron stars

Journal Article · Sat Jul 15 00:00:00 EDT 1995 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.52.661· OSTI ID:69555

Prakash, M; Cooke, J R ^[1]; Lattimer, J M ^[2]

---

1. Physics Department, SUNY at Stony Brook, Stony Brook, New York 11794-3800 (United States)
2. Earth and Space Sciences Department, SUNY at Stony Brook, Stony Brook, New York 11794-2100 (United States)

We investigate the role of trapped neutrinos on the composition of protoneutron stars with quark-hadron phase transitions. Trapped neutrinos shift the transition to higher baryon densities and also reduce the extent of a mixed phase in comparison to neutrino-free matter. Thus, a mixed phase of baryons and quarks is more likely to occur after a neutrino diffusion time scale of several seconds. In contrast with stars containing only nucleons and leptons, stars with quarks have larger maximum masses when neutrinos are trapped than for neutrino-free stars. Hence, black hole formation is likely delayed for the neutrino diffusion time scale when quarks are present.

• Research Organization: New York State University Research Foundation
• DOE Contract Number: FG02-88ER40388; FG02-87ER40317
• OSTI ID: 69555
• Journal Information: Physical Review, D, Vol. 52, Issue 2; Other Information: PBD: 15 Jul 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
QUARKS
PHASE TRANSFORMATIONS
HADRONS
NEUTRON STARS
NEUTRINOS
BARYONS
DIFFUSION