Nuclear and neutron matter with isobars — A transition potential model☆

作者: T. Ainsworth , R.A. Smith

DOI: 10.1016/0370-2693(80)90985-5

关键词:

摘要: Abstract The Δ(1236) resonance plays an important role in saturating nuclear matter and determining the properties of neutron star matter. In transition potential models, Δ is explicitly excited de-excited by predominantly tensor forces. many-body aspects these models suggest a simple prescription for calculating energy two-body cluster approximation. With one parameter, we generate bulk as function total baryon density fraction. Nuclear saturates at subnuclear with reasonable symmetry estimated compressibility. Neutron unbound all densities leads to appealing models. extra degree freedom associated may make it (too?) easy obtain saturation density.

参考文章(12)
P.A. Seeger, W.M. Howard, A semiempirical liquid-drop plus shell-correction formula Atomic Data and Nuclear Data Tables. ,vol. 17, pp. 428- 430 ,(1976) , 10.1016/0092-640X(76)90032-2
P. Haapakoski, A nucleon-nucleon potential that includes the effect of the N∗(1236) Physics Letters B. ,vol. 48, pp. 307- 310 ,(1974) , 10.1016/0370-2693(74)90596-6
J.W. Durso, M. Saarela, G.E. Brown, A.D. Jackson, Isobars, transition potentials and short-range repulsion in the nucleon-nucleon interaction Nuclear Physics A. ,vol. 278, pp. 445- 476 ,(1977) , 10.1016/0375-9474(77)90092-6
A M Green, J A Niskanen, M E Sainio, The effect of the Delta (1236) on the imaginary component of nucleon-nucleon phase-shifts Journal of Physics G: Nuclear Physics. ,vol. 4, pp. 1055- 1074 ,(1978) , 10.1088/0305-4616/4/7/013
R.A. Smith, V.R. Pandharipande, Nucleon-nucleon potentials including πNΔ coupling effects Nuclear Physics A. ,vol. 256, pp. 327- 348 ,(1976) , 10.1016/0375-9474(76)90376-6
Hirotaka Sugawara, Frank Von Hippel, Zero-Parameter Model of the N − N Potential Physical Review. ,vol. 172, pp. 1764- 1788 ,(1968) , 10.1103/PHYSREV.172.1764
William D. Myers, Development of the semiempirical droplet model Atomic Data and Nuclear Data Tables. ,vol. 17, pp. 411- 417 ,(1976) , 10.1016/0092-640X(76)90030-9
A.M. Green, P. Haapakoski, The effect of the Δ(1236) in the two-nucleon problem and in neutron matter Nuclear Physics A. ,vol. 221, pp. 429- 449 ,(1974) , 10.1016/0375-9474(74)90474-6
HA Bethe, MB Johnson, None, Dense baryon matter calculations with realistic potentials Nuclear Physics A. ,vol. 230, pp. 1- 58 ,(1974) , 10.1016/0375-9474(74)90528-4
Roderick V Reid, Local phenomenological nucleon-nucleon potentials Annals of Physics. ,vol. 50, pp. 411- 448 ,(1968) , 10.1016/0003-4916(68)90126-7