Constraining the 19Ne(p,γ)20Na Reaction Rate Using a Direct Measurement at DRAGON

Abstract

A direct measurement of the 19Ne(p, γ)20 Na reaction has been performed in inverse kinematics at the DRAGON recoil separator, at an energy ∼ 10 keV higher than previous measurements. The key resonance in the 19 Ne + p system relevant for ONe novae and Type-I X-ray burst temperatures have been successfully measured for the first time. Preliminary estimates of the resonance energy and strength are reported as Ec.m. â‰ 458 keV and ωγ â‰ 18 meV. These results are consistent with previous direct measurements, but disagree with the most recent study of the 19Ne(p, γ)20 Na reaction rate. These preliminary results will be finalised after a forthcoming negative log-likelihood analysis.

Metadata

Authors/Creators:	Wilkinson, R Lotay, G. Lennarz, A. Ruiz, C Christian, G. Akers, C. Catford, W. N. Chen, A A Connolly, D. Davids, B Hutcheon, A D Jedrejcic, D. Laird, A. M. https://orcid.org/0000-0003-0423-363X Martin, C. L. McNeice, E. Riley, J. Williams, M.
Copyright, Publisher and Additional Information:	© The Authors
Dates:	Published: 30 December 2017
Institution:	The University of York
Academic Units:	The University of York > Faculty of Sciences (York) > Physics (York) The University of York
Depositing User:	Pure (York)
Date Deposited:	07 Mar 2018 10:50
Last Modified:	06 Dec 2023 10:04
Published Version:	https://doi.org/10.1051/epjconf/201716501054
Status:	Published
Publisher:	EDP Sciences
Refereed:	No
Identification Number:	https://doi.org/10.1051/epjconf/201716501054
Related URLs:	http://www.scopus.com/inward/record.url?...

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Description: Constraining the 19Ne(p,γ) 20Na Reaction Rate Using a Direct Measurement at DRAGON

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Constraining the 19Ne(p,γ)20Na Reaction Rate Using a Direct Measurement at DRAGON

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