Direct studies of low-energy resonances in 31P(p, α)28Si and 35Cl(p, α)32S
Direct studies of low-energy resonances in 31P(p, α)28Si and 35Cl(p, α)32S
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31P(p, α)28Si 和 35Cl(p, α)32S 低能共振的直接研究
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
M. S. Smith
中科院分区：
文献类型：
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作者：
B. Moazen;C. Matei;D. Bardayan;J. Blackmon;K. Chae;K. Chipps;R. Hatarik;K. Jones;R. Kozub;M. Matoš;C. Nesaraja;P. O’Malley;S. Pain;T. Pelham;W. Peters;S. T. Pittman;J. F. Shriner;M. S. Smith
为了更好地理解新星中Si-Ar区的反应循环，直接研究了31 P（p，α 28 Si）和35 Cl（p，α）32 S的低能共振。EC. m处的新共振强度在31 P（p，α）28 Si中测量了= 600和622 keV的电子能（分别为ωγp，α =（2.2x00B1;0.7）× 10−2 eV和ωγp，α =（0.99±0.08）eV）以及Ec. m。35 Cl（p，α）32 S [ωγp，α =（1.2±0.2）× 10−2 eV]中的= 610 keV共振，这是直接或间接观察到的该反应中任何共振的最低能量。发现这些共振的强度低于先前确定的，导致在Si-Ar区域中甚至更弱的循环。
Low-energy resonances in 31P(p, α28Si and 35Cl(p, α)32S were studied directly in order to gain a better understanding of reaction cycling in the Si-Ar region in novae. New resonance strengths at Ec.m. = 600 and 622 keV in 31P(p, α)28Si were measured (ωγp, α = (2.2#x00B1;0.7) × 10−2 eV and ωγp, α = (0.99±0.08) eV, respectively) as well as the Ec.m. = 610 keV resonance in 35Cl(p, α)32S [ωγp, α = (1.2±0.2) × 10−2 eV], the lowest energy that any resonance in this reaction has been observed, directly or indirectly. The strengths of these resonances were found to be lower than previously determined, resulting in even weaker cycling in the Si-Ar region.