Measurement of the branching ratio of the {sup 6}He {beta}-decay channel into the {alpha}+d continuum

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

DOI:https://doi.org/10.1103/PHYSREVC.80.054307· OSTI ID:21296480

Raabe, R; Buescher, J; Ponsaers, J; Aksouh, F; Huyse, M; Ivanov, O; Lesher, S R; Mukha, I; Pauwels, D; Sawicka, M; Smirnov, D; Stefanescu, I; Van de Walle, J; Van Duppen, P; Angulo, C; Cabrera, J; Sereville, N de; Martel, I; Sanchez-Benitez, A M; Diget, C A ^[1]

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1. Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven (Belgium)

We measured the deuteron-emission branch of the {beta} decay of the halo nucleus {sup 6}He using the technique of implantation into a highly segmented silicon detector. The method, used here for the first time with a beam of {sup 6}He ions, ensures precise normalization; the value obtained for the branching ratio is B=(1.65{+-}0.10)x10{sup -6} (6% error). The summed energy spectra of the emitted {alpha} and d particles has also been measured. The results allow us to compare calculations from various models, potentially setting strong constraints on the precision required for the description of the {sup 6}He ground-state wave function.

• OSTI ID: 21296480
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 5 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BEAMS
BETA DECAY
BRANCHING RATIO
COMPARATIVE EVALUATIONS
DEUTERONS
EMISSION
ENERGY SPECTRA
GROUND STATES
HELIUM 6
IONS
SI SEMICONDUCTOR DETECTORS
WAVE FUNCTIONS