scholarly journals Di-neutrons in neutron matter within a Brueckner-Hartree-Fock approach

2016 ◽  
Vol 94 (3) ◽  
Author(s):  
Felipe Isaule ◽  
H. F. Arellano ◽  
Arnau Rios
Keyword(s):  
2005 ◽  
Vol 750 (2-4) ◽  
pp. 425-443 ◽  
Author(s):  
S. Goriely ◽  
M. Samyn ◽  
J.M. Pearson ◽  
M. Onsi

1991 ◽  
Vol 271 (3-4) ◽  
pp. 277-280 ◽  
Author(s):  
S. Marcos ◽  
R. Niembro ◽  
M.L. Quelle ◽  
J. Navarro

2021 ◽  
pp. 1-11
Author(s):  
M.K. Al-Sugheir ◽  
F.F. Mqbel

In this work, the static fluctuation approximation (SFA) is used to investigate the thermodynamic properties of spin-polarized neutron matter. The energy per particle, pressure, entropy per particle, specific heat capacity, and effective magnetic field are studied as functions of density, temperature, and polarization fraction. The Argonne v18 nucleon–nucleon potential is used here. It is found that the energy per particle, pressure, entropy per particle, and effective magnetic field increase as the density or temperature increases. Also, the energy per particle and pressure are linearly dependent on the quadratic spin polarization δ2. The system becomes more ordered as δ increases. Our calculations are found to be in good agreement with previously published results obtained with different many-body techniques, such as the lowest order constrained variational (LOCV) method, the Brueckner–Hartree–Fock (BHF) approach, and the Dirac–Brueckner–Hartree–Fock (DBHF) technique.


2005 ◽  
Vol 14 (05) ◽  
pp. 763-774 ◽  
Author(s):  
Kh. GAD

The properties of neutron matter are investigated in the framework of the extended Brueckner–Hartree–Fock approximation at zero temperature. Self-consistent calculations using different realistic interactions are reported for pure neutron matter. In this contribution, all the self-energies are calculated self-consistently. Using the self-energy, k-mass is evaluated using realistic NN interactions. Furthermore, the effect of hole–hole contributions is examined. We found that the hole–hole ladder brought about a non-negligible contribution.


1983 ◽  
Vol 399 (2) ◽  
pp. 529-562 ◽  
Author(s):  
C.J. Horowitz ◽  
Brian D. Serot
Keyword(s):  

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