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

A. Diaz Varela; B. M. Rebeiro; F. Ghazi Moradi; G. C. Ball; H.-F.Wirth; M. Kamil; N. J. Mukwevho; N. Y. Kheswa; P. E. Garrett; R. Hertenberger

arxiv: 2205.08476 · v1 · pith:6L2DL7Y2new · submitted 2022-05-17 · ⚛️ nucl-ex

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

M. Kamil , S. Triambak , G. C. Ball , V. Bildstein , A. Diaz Varela , T. Faestermann , P. E. Garrett , F. Ghazi Moradi

show 5 more authors

R. Hertenberger N. Y. Kheswa N. J. Mukwevho B. M. Rebeiro H.-F.Wirth

This is my paper

classification ⚛️ nucl-ex

keywords stateexistencedatagammahighnovaeadditionallyaffect

0 comments

read the original abstract

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 $^{30}{\rm P}(p,\gamma)$ 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 $^{30}{\rm P}(p,\gamma)$ resonance at $517(4)$ keV, located below the higher edge of the Gamow window for peak nova temperatures of about 0.4 GK.

This paper has not been read by Pith yet.

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

discussion (0)