Effect of tensor couplings in a relativistic Hartree approach for finite nuclei

Guangjun Mao
Phys. Rev. C 67, 044318 – Published 29 April 2003
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Abstract

The relativistic Hartree approach describing the bound states of both nucleons and antinucleons in finite nuclei has been extended to include tensor couplings for the ω and ρ mesons. After readjusting the parameters of the model to the properties of spherical nuclei, the effect of tensor-coupling terms raises the spin-orbit force by a factor of 2, while a large effective nucleon mass m*/MN0.8 sustains. The overall nucleon spectra of shell-model states are improved evidently. The predicted antinucleon spectra in the vacuum are deepened about 20–30 MeV.

  • Received 12 November 2002

DOI:https://doi.org/10.1103/PhysRevC.67.044318

©2003 American Physical Society

Authors & Affiliations

Guangjun Mao*

  • Institute of High Energy Physics, Chinese Academy of Science, P.O. Box 918(4), Beijing 100039, People’s Republic of China;
  • Institute of Theoretical Physics, Chinese Academy of Science, P.O. Box 2735, Beijing 100080, People’s Republic of China;
  • CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, People’s Republic of China

  • *Email address: maogj@mail.ihep.ac.cn

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Issue

Vol. 67, Iss. 4 — April 2003

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