论文标题

$^{30} $ p在Novae上的Proton Capture:在$ 6.40 $ MEV的状态下,$^{31} $ s的$ 6.65 $ MEV

Proton capture on $^{30}$P in novae: On the existence of states at $6.40$ MeV and $6.65$ MeV in $^{31}$S

论文作者

Kamil, M., Triambak, S., Ball, G. C., Bildstein, V., Varela, A. Diaz, Faestermann, T., Garrett, P. E., Moradi, F. Ghazi, Hertenberger, R., Kheswa, N. Y., Mukwevho, N. J., Rebeiro, B. M., Wirth, H. -F.

论文摘要

我们使用高分辨率$^{32} {\ rm s}(d,t)$测量来调查可能影响$^{31} $ s中的6401(3)kev state,可能会影响$^{30} {30} {\ rm p}(p,γ)$核反应速率(p,γ)$核反应速率(coxy-gen-gen-gen-gen-gen-gen-nove)我们的数据显示出具有很高意义的无效假设 - 状态不存在。此外,数据还表明存在于6648(4)KEV的迄今未报告的状态。该状态对应于$^{30} {\ rm p}(p,γ)$共振的价格为$ 517(4)$ keV,位于Gamow窗口高窗口下方的峰值NOVA温度约为0.4 Gk的峰值。

We use a high resolution $^{32}{\rm S}(d,t)$ measurement to investigate the claimed existence of a 6401(3) keV state in $^{31}$S that may affect the $^{30}{\rm P}(p,γ)$ nuclear reaction rate in oxygen-neon (ONe) novae. Our data are shown to exclude the null hypothesis - that the state does not exist - with high significance. Additionally, the data also suggest the existence of a hitherto unreported state at 6648(4) keV. This state corresponds to a $^{30}{\rm P}(p,γ)$ resonance at $517(4)$ keV, located below the higher edge of the Gamow window for peak nova temperatures of about 0.4 GK.

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