ELECTROMAGNETIC EFFECTS OF THE NUCLEON SPIN-ORBIT INTERACTION

Journal Article · Fri Sep 01 04:00:00 EDT 1961 · Annals of Physics (New York) (U.S.)

DOI:https://doi.org/10.1016/0003-4916(61)90187-7· OSTI ID:4818098

Arking, A

The nucleon spin-orbit potential is examined for its effects on electromagnetic processes of H/sup 2/, H/sup 3/, and He/sup 3/. Since only magnetic terms are affected by velocitydependent potentials, the magnetic dipole moment oPerator due to the spin-orbit potential is derived and the contributions to the N-P capture cross-section and to magnetic moments of H/sup 2/, H/sup 3/, and He/sup 3/ are calculated. Only the T = 0 component of the spin-orbit force has any effect on these quanttties. The eontribution to the unpolarized capture cross section for the Signel-Marshak (SM) and Gammel-Thaler (GT) potentials is much too small to be measured and even in a polarization measurement the effect is somewhat too small to be observed. Any hope of increasing the range and depth of the spin-orbit potential to bring agreement between theory and experiment for N-P capture must be abandoned because of the enormous contribution to the magnetic moments. The contribution to the three-body moments--0.07 nm for the SM potential and --0.06 nm for the GT potential-is too large to be reconciled with present experimental knowledge of the magnetic moments and theoretical knowledge of the three-body wave function and meson and relativistic effects. (auth)

• Research Organization: Cornell Univ., Ithaca, N.Y.
• NSA Number: NSA-16-002511
• OSTI ID: 4818098
• Journal Information: Annals of Physics (New York) (U.S.), Journal Name: Annals of Physics (New York) (U.S.) Vol. Vol: 15; ISSN APNYA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

GAMMEL-THALER POTENTIAL
NUCLEAR MODELS
NUCLEAR POTENTIAL
OPE MODEL
PHYSICS