Experimental Measurements of the 12C + 12C Nuclear Reactions at Low Energies
Experimental Measurements of the 12C + 12C Nuclear Reactions at Low Energies
复制标题
低能 12C 12C 核反应的实验测量
DOI：
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发表时间：
1973
期刊：
影响因子：
--
通讯作者：
W. Stephens
中科院分区：
文献类型：
--
作者：
M. Mazarakis;W. Stephens
The nuclear reactions $^{12}mathrm{C}(^{12}mathrm{C}, ensuremath{alpha})^{20}mathrm{Ne}$ and $^{12}mathrm{C}(^{12}mathrm{C}, p)^{23}mathrm{Na}$ have been observed from 5-MeV down to 2.45-MeV center-of-mass energy. Angular distributions and energy distributions of the protons and $ensuremath{alpha}$ particles were analyzed to obtain the total cross sections and other nuclear information. The Coulomb and angular momentum barrier penetrability was factored out to elucidate the intermediate resonance structure in the nuclear factor $stackrel{ifmmode ilde{}else ~{}fi{}}{S}$. The observed rise in the nuclear factor at the lowest energies may be interpreted as "absorption under the barrier" as proposed by Michaud and Vogt. The importance of these reactions for the carbon burning era of nucleosynthesis and energy generation in the later evolution of stars is mentioned and reaction rates are estimated for various burning temperatures.
The nuclear reactions $^{12}mathrm{C}(^{12}mathrm{C}, ensuremath{alpha})^{20}mathrm{Ne}$ and $^{12}mathrm{C}(^{12}mathrm{C}, p)^{23}mathrm{Na}$ have been observed from 5-MeV down to 2.45-MeV center-of-mass energy. Angular distributions and energy distributions of the protons and $ensuremath{alpha}$ particles were analyzed to obtain the total cross sections and other nuclear information. The Coulomb and angular momentum barrier penetrability was factored out to elucidate the intermediate resonance structure in the nuclear factor $stackrel{ifmmode ilde{}else ~{}fi{}}{S}$. The observed rise in the nuclear factor at the lowest energies may be interpreted as "absorption under the barrier" as proposed by Michaud and Vogt. The importance of these reactions for the carbon burning era of nucleosynthesis and energy generation in the later evolution of stars is mentioned and reaction rates are estimated for various burning temperatures.