Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2004-07-13
Phys.Rev. C70 (2004) 047002
Physics
Nuclear Physics
Nuclear Theory
4 pages, 1 figure
Scientific paper
10.1103/PhysRevC.70.047002
The previous Faddeev calculation of the two-alpha plus Lambda system for 9 Lambda Be is extended to incorporate the spin-orbit components of the SU_6 quark-model baryon-baryon interactions. We employ the Born kernel of the quark-model Lambda N LS interaction, and generate the spin-orbit component of the Lambda alpha potential by the alpha-cluster folding. The Faddeev calculation in the jj-coupling scheme implies that the direct use of the quark-model Born kernel for the Lambda N LS component is not good enough to reproduce the small experimental value Delta E^exp_{ls}=43 +- 5 keV for the 5/2^+ - 3/2^+ splitting. This procedure predicts three to five times larger values in the model FSS and fss2. The spin-orbit contribution from the effective meson-exchange potentials in fss2 is argued to be unfavorable to the small ls splitting, through the analysis of the Scheerbaum factors for the single-particle spin-orbit potentials calculated in the G-matrix formalism.
Fujiwara Yasuhiro
Kohno Makoto
Miyagawa Kazuya
Suzuki Yasuhiro
No associations
LandOfFree
Spin-orbit splitting of 9 Lambda Be excited states studied with the SU_6 quark-model baryon-baryon interactions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Spin-orbit splitting of 9 Lambda Be excited states studied with the SU_6 quark-model baryon-baryon interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin-orbit splitting of 9 Lambda Be excited states studied with the SU_6 quark-model baryon-baryon interactions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-141373