Mean-field calculation of compressed finite nuclei with {Delta} excitations
- Applied Science University, Amman (Jordan)
The energies and matter densities of finite nuclei under radial compression are predicted by using a constrained Hartree-Fock method with the {Delta} degree of freedom included. The results are presented for {sup 90}Zr in a calculation within a model space of seven major oscillator shells. The main feature of this calculation is that the effective baryon-baryon interactions associated with the {Delta} are evaluated within a G-matrix approach based on a coupled-channel NN{circle_plus}N{Delta}{circle_plus}{pi}NN model that can describe the NN data up to 1 GeV. It is found that as the nucleus is compressed to about 2{endash}3 times of the ordinary nuclear density, the {Delta} component is sharply increased to about 10{percent} of all baryons in the system. This result is consistent with the values extracted from relativistic heavy-ion collisions. {copyright} {ital 1997} {ital The American Physical Society}
- Research Organization:
- Iowa State Univ., Ames, IA (United States)
- DOE Contract Number:
- FG02-87ER40371; W-31109-ENG-38
- OSTI ID:
- 679093
- Journal Information:
- Physical Review, C, Vol. 56, Issue 6; Other Information: PBD: Dec 1997
- Country of Publication:
- United States
- Language:
- English
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