Spin Symmetry for Anti-Lambda Spectrum in Atomic Nucleus
SONG Chun-Yan1, YAO Jiang-Ming1,2, MENG Jie 1,3,4
1School of Physics, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 1008712School of Physical Science and Technology, Southwest University, Chongqing 4007153School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 1001914Department of Physics, University of Stellenbosch, Stellenbosch, South Africa
Spin Symmetry for Anti-Lambda Spectrum in Atomic Nucleus
SONG Chun-Yan1, YAO Jiang-Ming1,2, MENG Jie 1,3,4
1School of Physics, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 1008712School of Physical Science and Technology, Southwest University, Chongqing 4007153School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 1001914Department of Physics, University of Stellenbosch, Stellenbosch, South Africa
摘要The spin symmetry of the anti-Lambda spectrum in nucleus 16O is studied in the relativistic mean field theory. The spin-orbit splittings of spin doublets are found to be around 0.03-0.07MeV and the dominant components of the Dirac spinor for the anti-Lambda spin doublets are found to be near identical. It is indicated that there is an even better spin symmetry in the anti-Lambda spectrum than that in the anti-nucleon spectrum.
Abstract：The spin symmetry of the anti-Lambda spectrum in nucleus 16O is studied in the relativistic mean field theory. The spin-orbit splittings of spin doublets are found to be around 0.03-0.07MeV and the dominant components of the Dirac spinor for the anti-Lambda spin doublets are found to be near identical. It is indicated that there is an even better spin symmetry in the anti-Lambda spectrum than that in the anti-nucleon spectrum.
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2009, Vol. 26 
