Abstract
Neutron capture reactions are responsible for the synthesis of almost all of the elements heavier than iron through s-process and r-process nucleosynthesis. Uncertainties in (n,γ) rates on neutron-rich nuclei can have significant impact on the predictions of observed r-process abundances for different astrophysical scenarios. The (d,pγ) reaction has recently been demonstrated to be a valid surrogate for (n,γ). This reaction has been measured in inverse kinematics with Gammasphere ORRUBA: Dual Detectors for Experimental Structure Studies (GODDESS) where the Gammasphere array of Compton-suppressed HPGe detectors is coupled to the Oak Ridge Rutgers University Barrel Array (ORRUBA) of position-sensitive silicon-strip detectors. Preliminary results from the (d,pγ) measurement with 134Xe beams are reported.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
M.R. Mumpower, R. Surman, G.C. McLaughlin, A. Aprahamian, The impact of individual nuclear properties on r-process nucleosynthesis. Prog. Part. Nucl. Phys. 86, 86 (2016)
K.L. Jones et al., The magic nature of 132Sn explored through the single-particle states of 133Sn. Nature 465, 454 (2010)
R.L. Kozub et al., Neutron single particle structure in 131Sn and direct neutron capture cross sections. Phys. Rev. Lett. 109, 172501 (2012)
B. Manning et al., Informing direct neutron capture on tin isotopes near the N = 82 shell closure. Phys. Rev. C 99, 041302 (2019)
S. Chiba et al., Direct and semi-direct capture in low-energy (n,γ) reactions of neutron-rich tin isotopes and its implications for r-process nucleosynthesis. Phys. Rev. C 77, 015809 (2008)
A. Ratkiewicz et al., Towards neutron capture on exotic nuclei: Demonstrating (d,pγ) as a surrogate reaction for (n,γ). Phys. Rev. Lett. 122, 052502 (2019)
J.E. Escher et al., Constraining neutron capture cross sections for unstable nuclei with surrogate reaction data and theory. Phys. Rev. Lett. 121, 052501 (2018)
G. Potel, F.M. Nunes, I.J. Thompson, Establishing a theory for deuteron-induced surrogate reactions. Phys. Rev. C 92, 034611 (2015)
S.D. Pain et al., Direct reaction measurements using GODDESS. Phys. Procedia 90, 455–462 (2017)
S.D. Pain et al., Development of a high solid-angle silicon detector array for measurement of transfer reactions in inverse kinematics. Nucl. Instrum. Meth. B 261, 110 (2007)
P. Fallon, A. Gade, I.Y. Lee, GRETINA and its early science. Annu. Rev. Nucl. Part. Sci. 66, 321–339 (2016)
Acknowledgements
We thank all of the collaborators on the GODDESS project for their contributions. This work was supported in part by the U.S. Department of Energy National Nuclear Security Administration Grant No. DE-NA0000979 (Stewardship Science Academic Alliances, Rutgers), Contract No. DE-AC52-07NA27344 and LDRD 16-ERD-022 (LLNL), Office of Science, Office of Nuclear Physics Contract No. DE-AC05-00OR22725 (ORNL), and the National Science Foundation.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2021 This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply
About this paper
Cite this paper
Cizewski, J.A. et al. (2021). Prospects for Surrogate Neutron Capture Measurements with Radioactive Ion Beams and GODDESS. In: Escher, J., et al. Compound-Nuclear Reactions . Springer Proceedings in Physics, vol 254. Springer, Cham. https://doi.org/10.1007/978-3-030-58082-7_26
Download citation
DOI: https://doi.org/10.1007/978-3-030-58082-7_26
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-58081-0
Online ISBN: 978-3-030-58082-7
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)