New $^{32}$Cl(p,$γ$)$^{33}$Ar reaction rate for astrophysical rp-process calculations

Simple item page
dc.creatorSchatz, H.
dc.creatorBertulani, C. A.
dc.creatorBrown, B. A.
dc.creatorClement, R. R. C.
dc.creatorSakharuk, A. A.
dc.creatorSherrill, B. M.
dc.date2005-11-22
dc.date.accessioned2026-07-07T10:30:33Z
dc.date.available2026-07-07T10:30:33Z
dc.descriptionThe $^{32}$Cl(p,$γ$)$^{33}$Ar reaction rate is of potential importance in the rp-process powering type I X-ray bursts. Recently Clement et al. \cite{CBB04} presented new data on excitation energies for low lying proton unbound states in $^{33}$Ar obtained with a new method developed at the National Superconducting Cyclotron Laboratory. We use their data, together with a direct capture model and a USD shell model calculation to derive a new reaction rate for use in astrophysical model calculations. In particular, we take into account capture on the first excited state in $^{32}$Cl, and also present a realistic estimate of the remaining uncertainties. We find that the $^{32}$Cl(p,$γ$)$^{33}$Ar reaction rate is dominated entirely by capture on the first excited state in $^{32}$Cl over the whole temperature range relevant in X-ray bursts. In the temperature range from 0.2 to 1 GK the rate is up to a factor of 70 larger than the previously recommended rate based on shell model calculations only. The uncertainty is now reduced from up to a factor of 1000 to a factor of 3 at 0.3-0.7 GK and a factor of 6 at 1.5 GK.
dc.descriptionTo be published in Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/nucl-ex/0511040
dc.identifierhttp://arxiv.org/abs/nucl-ex/0511040
dc.identifierPhys.Rev.C72:065804,2005
dc.identifierdoi:10.1103/PhysRevC.72.065804
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178161
dc.subjectNuclear Experiment
dc.subjectAstrophysics
dc.subjectNuclear Theory
dc.titleNew $^{32}$Cl(p,$γ$)$^{33}$Ar reaction rate for astrophysical rp-process calculations
dc.typetext

Files

Collections

arXiv