期刊
PHYSICAL REVIEW C
卷 93, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.93.045811
关键词
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资金
- Helmholtz Association (HGF) through Nuclear Astrophysics Virtual Institute [VH-VI-417]
- JINA-CEE of the National Science Foundation [PHY-1430152, PHY-0822648]
- Spanish Ministerio de Educacion [FPU-AP2006-01474, FPA2012-39404-C02-01, FPA2013-47831-C2-1]
- Xunta de Galicia [GRC2013-11]
- BMBF
- EU(EURONS)
- EMMI
- GSI Darmstadt
- FIAS
- NAVI
- GSI-TU Darmstadt cooperation
- HIC for FAIR
The proton-capture reaction Si-26(p,gamma)(27) P was studied via Coulomb dissociation (CD) of P-27 at an incident energy of about 500 MeV/u. The three lowest-lying resonances in P-27 have been populated and their resonance strengths have been measured. In addition, a nonresonant direct-capture component was clearly identified and its astrophysical S factor measured. The experimental results are compared to Monte Carlo simulations of the CD process using a semiclassical model. Our thermonuclear reaction rates show good agreement with the rates from a recent compilation. With respect to the nuclear structure of P-27 we have found evidence for a negative-parity intruder state at 2.88-MeV excitation energy.
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