Spin dependence of the. lambda. N effective interaction

Journal Article · Thu Jan 31 23:00:00 EST 1985 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.31.499· OSTI ID:5996501

Millener, D J; Gal, A; Dover, C B; Dalitz, R H

A combination of theoretical estimates, based on a ..lambda..N potential model and phenomenological analysis of hypernuclear data, is used to determine a set of four p/sub N/s/sub ..lambda../ two-body matrix elements which characterize the spin dependence of the ..lambda..N interaction in the p shell. The central spin-spin and the ..lambda.. spin-orbit matrix elements are most strongly constrained by existing data. The spin dependence is weak in the sense that (core) x s/sub ..lambda../ doublet splittings are predicted to be of order 100 keV, except for the special case of /sub ..lambda..//sup 7/Li where the central spin-spin interaction dominates and the ground state doublet splitting is likely to be of order 600 keV. Detailed consideration is given to those ..gamma.. ray transitions the observation of which would best serve to further constrain the spin dependence of the ..lambda..N interaction, particularly the tensor interaction.

• Research Organization: Brookhaven National Laboratory, Upton, New York 11973
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5996501
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 31:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

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