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Investigation of excited states in Mg-22 via resonant elastic scattering of Na-21+p and its astrophysical implications
- Authors
- He, J. J.; Kubono, S.; Teranishi, T.; Hu, J.; Notani, M.; Baba, H.; Nishimura, S.; Moon, J. Y.; Nishimura, M.; Iwasaki, H.; Yanagisawa, Y.; Hokoiwa, N.; Kibe, M.; Lee, J. H.; Kato, S.; Gono, Y.; Lee, C. S.
- Issue Date
- Jul-2009
- Publisher
- AMER PHYSICAL SOC
- Keywords
- Construction professional; Structural equation model; Technology acceptance model (TAM); Web-based training
- Citation
- PHYSICAL REVIEW C, v.80, no.1, pp 377 - 386
- Pages
- 10
- Journal Title
- PHYSICAL REVIEW C
- Volume
- 80
- Number
- 1
- Start Page
- 377
- End Page
- 386
- ISSN
- 0556-2813
2469-9993
- Abstract
- The excited states in Mg-22 have been investigated by the resonant elastic scattering of Na-21+p. A 4.0 MeV/nucleon Na-21 beam was separated by the Center for Nuclear Study (CNS) radioactive ion beam separator (CRIB) and then used to bombard a thick (CH2)(n) target. The energy spectra of recoiled protons were measured at scattering angles of theta(c.m.)approximate to 172,146, and 134, respectively. A wide energy-range of excitation function in Mg-22 (up to E(x similar to)8.9 MeV) was obtained simultaneously with a thick-target method, and a state at 7.06 MeV was newly observed. The resonant parameters were deduced from an R-matrix analysis of the center-of-mass (c.m.) differential cross-section data with a SAMMY-M6-BETA code. The astrophysical resonant reaction rate for the Ne-18(alpha,p)Na-21 reaction was recalculated based on the present parameters. Generally speaking, the present rates are much smaller than the previous ones.
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