Effect of Tensor Interactions on the Nucleon and Anti-Nucleon Bound States

MAO Guang-Jun

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2024年10月30日

Chinese Physics C> 2003, Vol. 27> Issue(8) : 692-697

Effect of Tensor Interactions on the Nucleon and Anti-Nucleon Bound States

MAO Guang-Jun ^,

Institute of High Energy Physics, CAS, Beijing 100039, ChinaInstitute of Theoretical Physics, CAS,Beijing 100080, ChinaWorld Laboratory, CCAST,Beijing 100080, China

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Abstract：
Due to the contributions of the quantum vacuum to densities, the relativistic Hartree approach for finite nuclei produces a large effective nucleon mass m IM_N≈0.8, which causes the spin-orbit force to be only 1/3 of the empirical value. In this work we introduce tensor couplings for the vector mesons. Consequently, the spin-orbit force is enhanced by a factor of 2 while a large effective nucleon mass remains. The nucleon spectra of shell-model states are ameliorated evidently. The predicted anti-nucleon spectra in the vacuum are deepened about 20-30MeV.

References

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MAO Guang-Jun. Effect of Tensor Interactions on the Nucleon and Anti-Nucleon Bound States[J]. Chinese Physics C, 2003, 27(8): 692-697.

MAO Guang-Jun. Effect of Tensor Interactions on the Nucleon and Anti-Nucleon Bound States[J]. Chinese Physics C, 2003, 27(8): 692-697. shu

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Received: 2002-11-28
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Effect of Tensor Interactions on the Nucleon and Anti-Nucleon Bound States

MAO Guang-Jun ^,

Corresponding author: MAO Guang-Jun,

Institute of High Energy Physics, CAS, Beijing 100039, ChinaInstitute of Theoretical Physics, CAS,Beijing 100080, ChinaWorld Laboratory, CCAST,Beijing 100080, China

Received Date: 2002-11-28
Accepted Date: 1900-01-01
Available Online: 2003-08-05

Abstract: Due to the contributions of the quantum vacuum to densities, the relativistic Hartree approach for finite nuclei produces a large effective nucleon mass m IM_N≈0.8, which causes the spin-orbit force to be only 1/3 of the empirical value. In this work we introduce tensor couplings for the vector mesons. Consequently, the spin-orbit force is enhanced by a factor of 2 while a large effective nucleon mass remains. The nucleon spectra of shell-model states are ameliorated evidently. The predicted anti-nucleon spectra in the vacuum are deepened about 20-30MeV.