K and K* Exchange Effects in Lambda Hypernuclei
作者： Wen Wu , Shen Hong
DOI: 10.1088/0256-307X/27/4/042101
关键词:
摘要: We study the effects of K and K* exchange between Λ hyperon nucleon in a hypernucleus, where nuclear core is described by successful relativistic mean-field (RMF) model. In general, are responsible for strangeness one-boson-exchange potential model, which absent RMF calculation. investigate contribution Fock terms derived from exchange. use pseudovector coupling exchange, found to provide repulsive particle hypernuclei. Both vector tensor couplings taken into account, whose combined effect on single-particle energy be small.
iphy.ac.cn参考文章(28)
D. J. Millener, C. B. Dover, A. Gal, Lambda Nucleus Single Particle Potentials Physical Review C. ,vol. 38, pp. 2700- 2708 ,(1988) , 10.1103/PHYSREVC.38.2700
O. Hashimoto, H. Tamura, Spectroscopy of Λ hypernuclei Progress in Particle and Nuclear Physics. ,vol. 57, pp. 564- 653 ,(2006) , 10.1016/J.PPNP.2005.07.001
J. Mareš, B. K. Jennings, Relativistic description of [Lambda], [Sigma], and [Xi] hypernuclei Physical Review C. ,vol. 49, pp. 2472- 2478 ,(1994) , 10.1103/PHYSREVC.49.2472
H. Toki, H. Shen, Study of Λ hypernuclei in the quark mean-field model Nuclear Physics. ,vol. 707, pp. 469- 476 ,(2002) , 10.1016/S0375-9474(02)00961-2
R. Machleidt, The Meson Theory of Nuclear Forces and Nuclear Structure Advances in Nuclear Physics. ,vol. 19, pp. 189- 376 ,(1989) , 10.1007/978-1-4613-9907-0_2
R. Brockmann, W. Weise, ΛN-interaction and spin-orbit coupling in hypernuclei Physics Letters B. ,vol. 69, pp. 167- 169 ,(1977) , 10.1016/0370-2693(77)90635-9
Pierre AM Guichon, Anthony W Thomas, Kazuo Tsushima, None, Binding of hypernuclei in the latest quark-meson coupling model Nuclear Physics. ,vol. 814, pp. 66- 73 ,(2008) , 10.1016/J.NUCLPHYSA.2008.10.001
B.K. Jennings, The Dirac equation and Λ-nucleus systematics Physics Letters B. ,vol. 246, pp. 325- 328 ,(1990) , 10.1016/0370-2693(90)90607-8
M.M. Sharma, M.A. Nagarajan, P. Ring, rho meson coupling in the relativistic mean field theory and description of exotic nuclei Physics Letters B. ,vol. 312, pp. 377- 381 ,(1993) , 10.1016/0370-2693(93)90970-S
M. Rufa, J. Schaffner, J. Maruhn, H. Stöcker, W. Greiner, P.-G. Reinhard, Multi-lambda hypernuclei and the equation of state of hypermatter. Physical Review C. ,vol. 42, pp. 2469- 2478 ,(1990) , 10.1103/PHYSREVC.42.2469