Hot hadron-quark mixed phase including hyperons
- 1. Division of Theoretical Astronomy, National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)
- 2. Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
- 3. Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)
Description
We study the hadron-quark phase transition with the finite-size effects at finite temperature. For the hadron phase, we adopt a realistic equation of state in the framework of the Brueckner-Hartree-Fock theory including hyperons. The properties of the mixed phase are clarified by considering the finite-size effects under the Gibbs conditions. We find that the equation of state becomes softer than that at zero temperature for some density region. We also find that the equation of state gets closer to that given by the Maxwell construction. Moreover, the number of hyperons is suppressed by the presence of quarks. These are characteristic features of the hadron-quark mixed phase, and should be important for many astrophysical phenomena such as mergers of binary neutron stars.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.80.123009;
- arXiv
- arXiv:0910.1144v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 80
- Journal Issue
- 12
- Journal Page Range
- p. 123009-123009.8
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41056844
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ASTROPHYSICS; BINARY STARS; CONSTRUCTION; DENSITY; EQUATIONS OF STATE; FREE ENTHALPY; HARTREE-FOCK METHOD; HYPERONS; MAXWELL EQUATIONS; NEUTRON STARS; PHASE TRANSFORMATIONS; QUARKS
- Descriptors DEC
- APPROXIMATIONS; BARYONS; CALCULATION METHODS; DIFFERENTIAL EQUATIONS; ELEMENTARY PARTICLES; ENERGY; EQUATIONS; FERMIONS; HADRONS; PARTIAL DIFFERENTIAL EQUATIONS; PHYSICAL PROPERTIES; PHYSICS; STARS; STRANGE PARTICLES; THERMODYNAMIC PROPERTIES
Optional Information
- Notes
- (c) 2009 The American Physical Society