低能带电粒子转移反应的色散(渐近)理论和核天体物理学:II。渐近归一化系数及其核天体物理应用
Dispersion (asymptotic) theory of charged particle transfer reactions at low energies and nuclear astrophysics: II. the asymptotic normalization coefficients and their nuclear-astrophysical application
摘要:
在作者R. Yarmukhamedov和K.I. Tursunmakhatov [Phys. Rev. C(2019年提交)]用于外围屏障下和屏障上转移$A$($x$,$y$)三体中的$B$反应($A$、$a$和$y$)模型($ x$ = $y$ + $a$和$B$ = $A$ + $a$,并且$ a$是转移颗粒),分析了势垒以上和势垒以下入射能量的质子和triton转移${\rm{^9Be(^{10}B,\,^9Be)^{10}B}}$、${\rm{^{16}O(^3He}},\,d{\rm{)^{17}F}}$和${\rm{^{19}F(}}p,\,α{\rm{)^{16}O}}$反应微分截面的实验角分布。对${\rm{^9Be}} \,+p \to\,{\rm{^{10}B}}$、${\rm{^{16}O}} \,+\,p \to\, {\rm{^{17}F}}$和${\rm{^{16}O}} \,+\,t\to{\rm{^{19}F}}$的渐近归一化系数(相应的核顶点常数)的大小,得到了新的估计及其不确定性.它们被应用于计算天体物理$S$因子的核天体物理${\rm{^9Be(}}p,\,γ{\rm{)^{10}B}} $,${\rm{^{16}O(}}p,\,γ{\rm{)^{17}F}}$和${\rm{^{19}F(}}p,\,α{\rm{)^{16}O)}}$反应在热核能量。在恒星能量的天体物理$S$因子的新的值和它们的不确定性。
英文摘要:
Within the asymptotic theory proposed by authors R. Yarmukhamedov and K.I. Tursunmakhatov [Phys. Rev. C (submitted 2019)] for the peripheral sub- and above-barrier transfer $A$($x$, $y$)$B$ reaction in the three-body ($A$, $a$ and $y$) model ($ x$= $y$ + $a$ and $B$= $A$ + $a$, and $ a$ is a transferred particle), the analysis of the experimental angular distributions of the differential cross sections is performed for the peripheral proton and triton transfer ${\rm{^9Be(^{10}B,\,^9Be)^{10}B}}$, ${\rm{^{16}O(^3He}},\,d{\rm{)^{17}F}}$ and ${\rm{^{19}F(}}p,\,α{\rm{)^{16}O}}$ reactions at above-and sub-barrier projectile energies, respectively. New estimates and their uncertainties are obtained for magnitudes of the asymptotic normalization coefficients (respective the nuclear vertex constants) for ${\rm{^9Be}} \,+p \to\,{\rm{^{10}B}}$, ${\rm{^{16}O}} \,+\,p \to\, {\rm{^{17}F}}$ and ${\rm{^{16}O}} \,+\,t\to{\rm{^{19}F}}$. They are applied for calculations of the astrophysical $S$ factors for the nuclear-astrophysical ${\rm{^9Be(}}p,\,γ{\rm{)^{10}B}} $, ${\rm{^{16}O(}}p,\,γ{\rm{)^{17}F}}$ and ${\rm{^{19}F(}}p,\,α{\rm{)^{16}O)}}$ reactions at thermonuclear energies. New values and their uncertainties are obtained for the astrophysical $S$ factors at stellar energies.
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