Critical temperature for {alpha}-particle condensation within a momentum-projected mean-field approach

Journal Article · Fri May 15 00:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.79.051301· OSTI ID:21286916

Sogo, T; Roepke, G ^[1]; Lazauskas, R ^[2]; Schuck, P ^[3]

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1. Institut fuer Physik, Universitaet Rostock, D-18051 Rostock (Germany)
2. IPHC, IN2P3-CNRS/Universite Louis Pasteur BP 28, F-67037 Strasbourg Cedex 2 (France)
3. Institut de Physique Nucleaire, CNRS, UMR 8608, Orsay F-91406 (France)

{alpha}-particle (quartet) condensation in homogeneous spin-isospin symmetric nuclear matter is investigated. The usual Thouless criterion for the critical temperature is extended to the quartet case. The in-medium four-body problem is strongly simplified by the use of a momentum-projected mean-field ansatz for the quartet. The self-consistent single-particle wave functions are shown and discussed for various values of the density at the critical temperature. Excellent agreement of the critical temperature with a numerical solution of the Faddeev-Yakubovsky equation is obtained.

• OSTI ID: 21286916
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 79, Issue 5; Other Information: DOI: 10.1103/PhysRevC.79.051301; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
CRITICAL TEMPERATURE
EQUATIONS
FOUR-BODY PROBLEM
ISOSPIN
MEAN-FIELD THEORY
NUCLEAR MATTER
NUMERICAL SOLUTION
SPIN
SYMMETRY
WAVE FUNCTIONS