Structure of the weakly-bound nucleus {sup 6}He studied via the {sup 6}Li(t,{sup 3}He) {sup 6}He reaction.

Journal Article · Thu Nov 16 04:00:00 EST 2000 · Phys. Lett. B

DOI:https://doi.org/10.1016/S0370-2693(00)01146-1· OSTI ID:942965

Nakamura, T; Aumann, T; Bazin, D; Blumenfeld, Y; Brown, B A; Caggiano, J; Clement, R; Glasmacher, T; Lofy, P A; Navin, A; Pritychenko, B V; Sherrill, B M; Yurkon, J A; Bhattacharya, M; Garcia, A; Wiescher, M

The {sup 6}Li(t,{sup 3}He){sup 6}He charge-exchange reaction leading to the weakly-bound nucleus {sup 6}He has been studied at 336 MeV. Beyond the strong peaks for the known ground state (J{sup {pi}} = 0{sup +}) and first excited state (J{sup {pi}} = 2{sup +}, E{sub x} = 1.8 MeV), a broad asymmetric structure around E{sub x} {approx}5 MeV has been observed. The angular distribution of this structure exhibits the dominance of a {Delta}L = 1 transition, indicating the existence of intruder states at low excitation energies in {sup 6}He.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC; NSF
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 942965
• Report Number(s): ANL/PHY/JA-36300
• Journal Information: Phys. Lett. B, Journal Name: Phys. Lett. B Journal Issue: 3-4 ; Nov. 16, 2000 Vol. 493; ISSN PYLBAJ; ISSN 0370-2693
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
CHARGE-EXCHANGE REACTIONS
EXCITATION
EXCITED STATES
GROUND STATES