Effects of the tensor force on the multipole response in finite nuclei

Journal Article · Tue Dec 15 04:00:00 EST 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.064304· OSTI ID:21296569

Ligang, Cao ^[1]; Colo, G ^[1]; Sagawa, H ^[2]; Bortignon, P F ^[1]; Sciacchitano, L ^[1]

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1. Dipartimento di Fisica, Universita degli Studi di Milano, via Celoria 16, Milano (Italy)
2. Center for Mathematics and Physics, University of Aizu, Aizu-Wakamatsu, Fukushima 965-8560 (Japan)

We present a thorough analysis of the effects of tensor interaction on the multipole response of magic nuclei, using the fully self-consistent random phase approximation model with Skyrme interactions. We disentangle the modifications to the static mean field induced by the tensor terms, and the specific features of the residual particle-hole (p-h) tensor interaction, for quadrupole (2{sup +}), octupole (3{sup -}), and also magnetic dipole (1{sup +}) responses. It is pointed out that the tensor force has a larger effect on the magnetic dipole states than on the natural parity states 2{sup +} and 3{sup -}, especially at the mean-field level. Perspectives for a better assessment of the tensor force parameters are discussed.

• OSTI ID: 21296569
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGES
MAGIC NUCLEI
MAGNETIC DIPOLES
MEAN-FIELD THEORY
OCTUPOLES
PARITY
RANDOM PHASE APPROXIMATION
SKYRME POTENTIAL
TENSOR FORCES