First Direct Measurement of an Astrophysical p-Process Reaction Cross Section Using a Radioactive Ion Beam

W. N. Catford; S. A. Gillespie; G. Lotay; M. Williams; D. T. Doherty; S. Hallam; T. Rauscher; S. Jazrawi; C. Paxman; M. Alcorta; A. M. Amthor; C. A. Andreoiu; D. Baal; G. C. Ball; S. S. Bhattacharjee; H. Behnamian; Bildstein; C. Burbadge; N. E. Esker; F. H. Garcia; A. B. Garnsworthy; G. Hackman; K. A. Hudson; E. Kasanda; A. R. L. Kennington; Y. H. Kim; A. Lennarz; R. S. Lubna; C. R. Natzke; N. Nishimura; B. Olaizola; A. Psaltis; C. E. Svensson; J. Williams; B. Wallis; D. Yates; D. Walter; B. Davids

doi:10.1103/PhysRevLett.127.112701

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First Direct Measurement of an Astrophysical p-Process Reaction Cross Section Using a Radioactive Ion Beam

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First Direct Measurement of an Astrophysical p-Process Reaction Cross Section Using a Radioactive Ion Beam

W. N. Catford, S. A. Gillespie, G. Lotay, M. Williams, D. T. Doherty, S. Hallam, T. Rauscher, S. Jazrawi, C. Paxman, M. Alcorta, …

Physical Review Letters, Vol.127(11), pp. 112701-1- 112701-6

10/09/2021

DOI: https://doi.org/10.1103/PhysRevLett.127.112701

PMID: 34558922

Abstract

Direct reactions

Nuclear reactions

Nucleosynthesis in explosive environments

Radiative capture

Nuclear Astrophysics

We have performed the first direct measurement of the Rb-83(p, gamma) radiative capture reaction cross section in inverse kinematics using a radioactive beam of Rb-83 at incident energies of 2.4 and 2.7A MeV. The measured cross section at an effective relative kinetic energy of E-cm = 2.393 MeV, which lies within the relevant energy window for core collapse supernovae, is smaller than the prediction of statistical model calculations. This leads to the abundance of Sr-84 produced in the astrophysical p process being higher than previously calculated. Moreover, the discrepancy of the present data with theoretical predictions indicates that further experimental investigation of p-process reactions involving unstable projectiles is clearly warranted.

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Title: First Direct Measurement of an Astrophysical p-Process Reaction Cross Section Using a Radioactive Ion Beam
Creators: W. N. Catford - University of Surrey, School of Maths and Physics
S. A. Gillespie - TRIUMF
G. Lotay - Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England
M. Williams - TRIUMF
D. T. Doherty - University of Surrey, School of Maths and Physics
S. Hallam - University of Surrey, School of Maths and Physics
T. Rauscher - University of Basel
S. Jazrawi - University of Surrey, School of Maths and Physics
C. Paxman - University of Surrey, School of Maths and Physics
M. Alcorta - TRIUMF
A. M. Amthor - Bucknell University
C. A. Andreoiu - Simon Fraser University
D. Baal - TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada
G. C. Ball - TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada
S. S. Bhattacharjee - TRIUMF
H. Behnamian - Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada
Bildstein - University of Guelph
C. Burbadge - University of Guelph
N. E. Esker - TRIUMF
F. H. Garcia - Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada
A. B. Garnsworthy - TRIUMF
G. Hackman - TRIUMF
K. A. Hudson - TRIUMF
E. Kasanda - Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada
A. R. L. Kennington - Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England
Y. H. Kim - Han Yang Univ, Dept Nucl Engn, Seoul 04763, South Korea
A. Lennarz - TRIUMF
R. S. Lubna - TRIUMF
C. R. Natzke - TRIUMF
N. Nishimura - RIKEN
B. Olaizola - University of Guelph
A. Psaltis - McMaster University
C. E. Svensson - University of Guelph
J. Williams - TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada
B. Wallis - Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England
D. Yates - TRIUMF
D. Walter - TRIUMF
B. Davids - TRIUMF
Publication Details: Physical Review Letters, Vol.127(11), pp. 112701-1- 112701-6
Publisher: American Physical Society
Number of pages: 6
Date published: 10/09/2021
Date accepted: 11/08/2021
Grants: Science and Technology Facilities Council (United Kingdom, Swindon) - STFC
Natural Sciences and Engineering Research Council (Canada, Ottawa) - NSERC
National Research Council Canada (Canada, Ottawa) - NRC
Canada Foundation for Innovation (Canada, Ottawa) - CFI
TRIUMF (Canada, Vancouver)
University of Guelph (Canada, Guelph)
ChETEC, CA16117, European Cooperation in Science and Technology (Belgium, Brussels) - COST
19H00693, Japan Society for the Promotion of Science (Japan, Tokyo) - JSPS
21H01087, Japan Society for the Promotion of Science (Japan, Tokyo) - JSPS
Grant note: The authors acknowledge the generous support of the Natural Sciences and Engineering Research Council of Canada. TRIUMF receives federal funding via a contribution agreement through the National Research Council of Canada. The GRIFFIN infrastructure was funded jointly by the Canada Foundation for Innovation, the Ontario Ministry of Research and Innovation, the British Columbia Knowledge Development Fund, TRIUMF, and the University of Guelph. UK personnel were supported by the Science and Technologies Facilities Council (STFC). T. R. acknowledges support by the European COST action “ChETEC" (Grant No. CA16117). N. N. acknowledges support by JSPS KAKENHI (Grants No. 19H00693, No. 21H01087).
Identifiers: 99634866502346
Academic Unit: School of Maths and Physics
Language: English
Resource Type: Journal article

First Direct Measurement of an Astrophysical p-Process Reaction Cross Section Using a Radioactive Ion Beam

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