Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts

G. Lotay; J. Henderson; W. N. Catford; F. A. Ali; S. Hallam; J. Berean; M. Spencer; N. Bernier; M. Williams; S. S Bhattacharjee; M Bowry; R Caballero-Folch; B. Davids; T. E. Drake; A. B. Garnsworthy; F. Ghazi Moradi; S. A. Gillespie; B. Greaves; G. Hackman; B.K. Luna; D. Hymers; E Kasanda; D. Levy; A. Mathews; Z Meisel; M. Moukaddam; D Muecher; B Olaizola; NA Orr; H.P. Patel; MM Rajabali; Y Saito; J. Smallcombe; C. E. Svensson; K. Whitmore

doi:10.1016/j.physletb.2022.137361

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Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts

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Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts

G. Lotay, J. Henderson, W. N. Catford, F. A. Ali, S. Hallam, J. Berean, M. Spencer, N. Bernier, M. Williams, S. S Bhattacharjee, …

Physics Letters B, Vol.833, 137361

10/10/2022

DOI: https://doi.org/10.1016/j.physletb.2022.137361

Abstract

We present new experimental measurements of resonance strengths in the astrophysical 23Al(p,γ)24Si reaction, constraining the pathway of nucleosynthesis beyond 22Mg in X-ray burster scenarios. Specifically, we have performed the first measurement of the (d,p) reaction using a radioactive beam of 23Ne to explore levels in 24Ne, the mirror analog of 24Si. Four strong single-particle states were observed and corresponding neutron spectroscopic factors were extracted with a precision of ∼20%. Using these spectroscopic factors, together with mirror state identifications, we have reduced uncertainties in the strength of the key ℓ = 0 resonance at Er = 157 keV, in the astrophysical 23Al(p,γ) reaction, by a factor of 4. Our results show that the 22Mg(p,γ)23Al(p,γ) pathway dominates over the competing 22Mg(α,p) reaction in all but the most energetic X-ray burster events (T>0.85 GK), significantly affecting energy production and the preservation of hydrogen fuel.

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Title: Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts
Creators: G. Lotay - Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
J. Henderson - University of Surrey, School of Maths and Physics
W. N. Catford - Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
F. A. Ali - Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
S. Hallam - Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
J. Berean - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
M. Spencer - Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
N. Bernier - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
M. Williams - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
S. S Bhattacharjee - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
M Bowry - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
R Caballero-Folch - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
B. Davids - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
T. E. Drake - Department of Physics, University of Toronto, Toronto, Ontario M5S 1A7, Canada
A. B. Garnsworthy - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
F. Ghazi Moradi - Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
S. A. Gillespie - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
B. Greaves - Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
G. Hackman - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
B.K. Luna - Department of Physics, Tennessee Technological University, Cookeville, TN 38505, USA
D. Hymers - Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
E Kasanda - Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
D. Levy - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
A. Mathews - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
Z Meisel - Department of Physics & Astronomy, Ohio University, Athens, OH 45701, USA
M. Moukaddam - Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
D Muecher - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
B Olaizola - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
NA Orr - LPC-Caen, IN2P3/CNRS, UniCaen, ENSICAEN, Normandie Université, 14000 Caen, France
H.P. Patel - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
MM Rajabali - Department of Physics, Tennessee Technological University, Cookeville, TN 38505, USA
Y Saito - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
J. Smallcombe - TRIUMF, Vancouver, British Columbia, V6T 2A3, Canada
C. E. Svensson - Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada
K. Whitmore - Department of Physics, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada
Publication Details: Physics Letters B, Vol.833, 137361
Publisher: Elsevier
First online publication date: 02/08/2022
Publication Date: 10/10/2022
Date accepted for publication: 28/07/2022
Grants: UKRI Future Leaders Fellowship grant, MR/T022264/1, UK Research and Innovation (United Kingdom, Swindon) - UKRI
Grant note: The authors would like to thank the TRIUMF beam delivery group for their efforts in providing high-quality beams. This work has been supported by the Natural Sciences and Engineering Research Council of Canada (NSERC), The Canada Foundation for Innovation and the British Columbia Knowledge Development Fund. TRIUMF receives federal funding via a contribution agreement through the National Research Council Canada. UK personnel were supported by the Science and Technology Facilities Council (STFC), JH acknowledges support at the University of Surrey under UKRI Future Leaders Fellowship MR/T022264/1, MR acknowledges support from the U.S. Department of Energy Office of Science through grant No. DE-SC0016988 and ZM acknowledges support from the U.S. Department of Energy under grants DE-FG02-88ER40387 and DESC001904. We also benefited from support by the National Science Foundation under grant PHY-1430152 (Joint Institute for Nuclear Astrophysics-Center for the Evolution of the Elements).
Identifiers: 99693764502346; WOS:000865640700034
Academic Unit: School of Biosciences; School of Maths and Physics
Language: English
Resource Type: Journal article
SDG (Scopus 2023): SDG 7
Data Access Statement: Data will be made available on request.

Single neutron transfer on 23Ne and its relevance for the pathway of nucleosynthesis in astrophysical X-ray bursts

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