“School of Physics”

Back to Papers Home
Back to Papers of School of Physics

Paper   IPM / P / 6856
School of Physics
  Title:   Lowest Order Constrained Variational and Local Density Approximation Approach to the Hot Alpha Particle
  Author(s): 
1.  M. Modarres
2.  H.R. Moshfegh
3.  h. Mariji
  Status:   Published
  Journal: Can. J. Phys.
  No.:  116
  Vol.:  80
  Year:  2002
  Pages:   911-923
  Supported by:  IPM
  Abstract:
The free energy of an alpha particle is calculated using the local density approximation in the harmonic oscillator basis. The effective two-body interactions are generated from the lowest order constrained variational (LOCV) calculation for nuclear matter at finite temperature, with the Reid and Delta-Reid potentials. The Fermi?Dirac distribution is used to calculate the entropy and the occupation probability of each state of alpha particle at a given temperature. The effective mass is treated as a variational parameter. Our zero temperature results with the Delta-Reid interaction agree well with the experimental saturation data of alpha particle and the other many-body techniques. The flashing temperature of 5 MeV is found, which is consistent with experimental evidence. It is concluded that a similar liquid?gas phase transition to that of nuclear matter is most probable in the alpha particle and heavier nuclei.

Download TeX format
back to top
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
Clients Logo
scroll left or right