A new prediction for the binding energy of the {sup 7}{sub {lambda}}He hypernucleus

Journal Article · Tue Mar 01 04:00:00 EST 2005 · Journal of Physics. G, Nuclear and Particle Physics

DOI:https://doi.org/10.1088/0954-3899/31/5/009· OSTI ID:840700

Filikhin, I; Suslov, V M; Vlahovic, B

P-shell A = 7 hypernuclei are considered in the cluster {sup 5}{sub {lambda}}He + N + N model. The folding procedure using the OBE simulating (NSC97f) model for {Lambda}N potential and various {alpha}{lambda} potentials are applied to construct the {sup 5}{sub {lambda}}He-N interaction. Configuration space Faddeev calculations are performed for the hyperon binding energy of the {sup 7}{sub {lambda}}He(1/2{sup +}) and {sup 7}{sub {lambda}}Li(1/2{sup +} and 3/2{sup +}, T = 0) hypernuclei. The new predicted value for B{sub {lambda}}({sup 7}{sub {lambda}}He) is 5.35 MeV. This value was obtained with the {sup 6}{sub {lambda}}He(2{sup -}) excitation energy equal to 0.26 MeV. Since the 2{sup -} state of {sup 6}{sub {lambda}}He has not yet been observed, the {sup 6}{sub {lambda}}He(2{sup -}) excitation energy was chosen to reproduce the experimental value of the {sup 7}{sub {lambda}}Li(3/2{sup +}) excitation energy by the adjustment of the {sup 5}{sub {lambda}}He-N effective potential.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 840700
• Report Number(s): JLAB-PHY-05-310; DOE/ER/40150-5048
• Journal Information: Journal of Physics. G, Nuclear and Particle Physics, Journal Name: Journal of Physics. G, Nuclear and Particle Physics Journal Issue: 5 Vol. 31; ISSN 0954-3899; ISSN JPGPED
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BINDING ENERGY
CONFIGURATION
EXCITATION
FORECASTING
HYPERNUCLEI
HYPERONS