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First simultaneous measurement of the γ-ray and neutron emission probabilities in inverse kinematics at a heavy-ion storage ring
Phys. Rev. C 111, 024614 – Published 18 February, 2025
DOI: https://doi.org/10.1103/PhysRevC.111.024614
Abstract
The probabilities for γ-ray and particle emission as a function of the excitation energy of a decaying nucleus are valuable observables for constraining the ingredients of the models that describe the deexcitation of nuclei near the particle emission threshold. These models are essential in nuclear astrophysics and applications. In this paper, we have for the first time simultaneously measured the γ-ray and neutron emission probabilities of . The measurement was performed in inverse kinematics at the Experimental Storage Ring (ESR) of the GSI/FAIR facility, where a beam interacted through the reaction with a hydrogen gas jet target. Instead of detecting the γ rays and neutrons emitted by , we detected the heavy beamlike residues produced after γ and neutron emission. These heavy residues were fully separated by a dipole magnet of the ESR and were detected with outstanding efficiencies. The comparison of the measured probabilities with model calculations has allowed us to test and select different descriptions of the γ-ray strength function and the nuclear level density available in the literature.
Physics Subject Headings (PhySH)
See Also
First Measurement of the Neutron-Emission Probability with a Surrogate Reaction in Inverse Kinematics at a Heavy-Ion Storage Ring
Article Text
References (34)
- M. Arnould et al., Phys. Rep. 450, 97 (2007).
- S. N. Liddick et al., Phys. Rev. Lett. 116, 242502 (2016).
- S. Bjornholm and J. E. Lynn, Rev. Mod. Phys. 52, 725 (1980).
- G. Kessedjian et al., Phys. Rev. C 91, 044607 (2015).
- J. E. Escher et al., Rev. Mod. Phys. 84, 353 (2012).
- R. P. Sánchez et al., Phys. Rev. Lett. 125, 122502 (2020).
- R. P. Sánchez et al., Nucl. Instrum. Meth. A 933, 63 (2019).
- S. A. Bennett et al., Phys. Rev. Lett. 130, 202501 (2023).
- M. Sguazzin et al., companion paper, Phys. Rev. Lett. 134, 072501 (2025).
- M. Steck and Yu. A. Litvinov, Prog. Part. Nucl. Phys. 115, 103811 (2020).
- J. Glorius et al., Nucl. Instr. Meth. B 541, 190 (2023).
- T. Motobayashi and H. Sakurai, Prog. Theor. Exp. Phys. 2012, 03C001 (2012).
- D. W. Bardayan, J. Phys. G: Nucl. Part. Phys. 43, 043001 (2016).
- J. C. Zamora et al., Phys. Rev. C 96, 034617 (2017).
- J. Glorius et al., Phys. Rev. Lett. 122, 092701 (2019).
- M. von Schmid et al., Eur. Phys. J. A 59, 83 (2023).
- B. Franzke, Nucl. Instrum. Methods B 25, 18 (1987).
- C. G. Bruno et al., Nucl. Instrum. Meth. A 1048, 168007 (2023).
- https://www.mesytec.com/products/nuclear-physics/MMR.html.
- J. Allison et al., Nucl. Instrum. Meth. A 835, 186 (2016).
- Q. Ducasse et al., Phys. Rev. C 94, 024614 (2016).
- M. Dupuis et al., Phys. Rev. C 73, 014605 (2006).
- M. Dupuis et al., Phys. Rev. C 100, 044607 (2019).
- A. Koning, S. Hilaire, and S. Goriely, Eur. Phys. J. A 59, 131 (2023).
- A. J. Koning et al., Nucl. Phys. A. 810, 13 (2008).
- O. Iwamoto, J. Nucl. Sci. Technol. 44, 687 (2007).
- A. Gilbert and A. G. W. Cameron, Can. J. Phys. 43, 1446 (1965).
- S. Bassauer et al., Phys. Rev. C 94, 054313 (2016).
- W. Dilg, W. Schantl, H. Vonach, and M. Uhl, Nucl. Phys. A. 217, 269 (1973).
- S. Goriely et al., Phys. Rev. C 78, 064307 (2008).
- S. Hilaire et al., Phys. Rev. C 86, 064317 (2012).
- J. Kopecky and M. Uhl, Phys. Rev. C 41, 1941 (1990).
- S. Goriely and V. Plujko, Phys. Rev. C 99, 014303 (2019).
- S. Goriely, S. Hilaire, S. Péru, and K. Sieja, Phys. Rev. C 98, 014327 (2018).
