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

Guangjun Mao
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Abstract

The relativistic Hartree approach describing the bound states of both nucleons and anti-nucleons in finite nuclei has been extended to include tensor couplings for the $ω$- and $ρ$-meson. After readjusting the parameters of the model to the properties of spherical nuclei, the effect of tensor-coupling terms rises the spin-orbit force by a factor of 2, while a large effective nucleon mass $m^{*}/M_{N} \approx 0.8$ sustains. The overall nucleon spectra of shell-model states are improved evidently. The predicted anti-nucleon spectra in the vacuum are deepened about 20 -- 30 MeV.

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Guangjun Mao. 2002-11-12. Effect of tensor couplings in a relativistic Hartree approach for finite nuclei. https://doi.org/10.1103/physrevc.67.044318

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