Intermediate Nuclear Structure for 2v 2{beta} Decay of {sup 48}Ca Studied by (p, n) and (n, p) Reactions at 300 MeV

Journal Article · Wed Aug 26 04:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3232142· OSTI ID:21322867

Sakai, H; Yako, K ^[1]

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1. University of Tokyo, Department of Physics, Hongo 7-3-1, Bunkyo, Tokyo 113-0033 (Japan)

Angular distributions of the double differential cross sections for the {sup 48}Ca(p,n) and the {sup 48}Ti(n,p) reactions were measured at 300 MeV. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) transition strengths. In the (n, p) spectrum beyond 8 MeV excitation energy extra B(GT{sup +}) strengths which are not predicted by the shell model calculation. This extra B(GT{sup +}) strengths significantly contribute to the nuclear matrix element of the 2v2{beta}-decay.

• OSTI ID: 21322867
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1165; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
CALCIUM 48
CALCIUM 48 TARGET
DIFFERENTIAL CROSS SECTIONS
DOUBLE BETA DECAY
EXCITATION
GAMMA SPECTROSCOPY
GAMOW-TELLER RULES
MEV RANGE
NEUTRON REACTIONS
NUCLEAR MATRIX
NUCLEAR STRUCTURE
PROTON REACTIONS
SHELL MODELS
STRENGTH FUNCTIONS
TITANIUM 48
TITANIUM 48 TARGET