Spectroscopy of {sup 24}Al and extraction of Gamow-Teller strengths with the {sup 24}Mg({sup 3}He,t) reaction at 420 MeV

Journal Article · Tue Jul 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.014314· OSTI ID:21192031

Zegers, R G. T.; Meharchand, R; Brown, B A; Guess, C J ^[1]; Adachi, T; Hashimoto, H; Hatanaka, K; Matsubara, H; Nakanishi, K; Ohta, T; Okamura, H; Sakemi, Y; Shimizu, Y; Tameshige, Y; Tamii, A; Yosoi, M ^[2]; Austin, Sam M; Shimbara, Y ^[1]; Fujita, Y ^[3]; Fujiwara, M ^[2]

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1. National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824-1321 (United States)
2. Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047 (Japan)
3. Department of Physics, Osaka University, Toyonaka, Osaka 560-0043 (Japan)

The {sup 24}Mg({sup 3}He,t){sup 24}Al reaction was studied at E({sup 3}He)=420 MeV. An energy resolution of 35 keV was achieved. Gamow-Teller strengths to discrete levels in {sup 24}Al were extracted by using a recently developed empirical relationship for the proportionality between Gamow-Teller strengths and differential cross sections at zero momentum transfer. Except for small discrepancies for a few weak excitations, good agreement with previous {sup 24}Mg(p,n) data and nuclear-structure calculations using the USDA/B interactions in the sd shell-model space was found. The excitation energy of several levels in {sup 24}Al of significance for determination of the {sup 23}Mg(p,{gamma}){sup 24}Al thermonuclear reaction rate were measured. Results are consistent with two of the three previous ({sup 3}He,t) measurements, performed at much lower beam energies. However, a new state at E{sub x}({sup 24}Al)=2.605(10) MeV was found and is the third state above the proton separation energy.

• OSTI ID: 21192031
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 24
BEAMS
BINDING ENERGY
DIFFERENTIAL CROSS SECTIONS
ENERGY RESOLUTION
EXCITATION
EXTRACTION
GAMMA DECAY
GAMOW-TELLER RULES
HELIUM 3
INTERACTIONS
KEV RANGE
MAGNESIUM 23
MAGNESIUM 24 TARGET
MEV RANGE 100-1000
MOMENTUM TRANSFER
NUCLEAR STRUCTURE
PROTONS
SHELL MODELS
SIMULATION
SPACE
SPECTROSCOPY
THERMONUCLEAR REACTIONS
TRITONS