First simultaneous measurement of the γ-ray and neutron emission probabilities in inverse kinematics at a heavy-ion storage ring

• DOI: 10.1103/physrevc.111.024614
• Publication Date: 2025-02-18T16:06:55Z
• Authors: M. Sguazzin; B. Jurado; J. Pibernat; J. A. Swartz; M. Grieser; J. Glorius; Yu. A. Litvinov; C. Berthelot; B. Włoch; J. Adamczewski-Musch; P. Alfaurt; P. Ascher; L. Audouin; B. Blank; K. Blaum; B. Brückner; S. Dellmann; I. Dillmann; C. Domingo-Pardo; M. Dupuis; P. Erbacher; M. Flayol; O. Forstner; D. Freire-Fernández; M. Gerbaux; J. Giovinazzo; S. Grévy; C. J. Griffin; A. Gumberidze; S. Heil; A. Heinz; R. Hess; D. Kurtulgil; N. Kurz; G. Leckenby; S. Litvinov; B. Lorentz; V. Méot; J. Michaud; S. Pérard; N. Petridis; U. Popp; D. Ramos; R. Reifarth; M. Roche; M. S. Sanjari; R. S. Sidhu; U. Spillmann; M. Steck; Th. Stöhlker; B. Thomas; L. Thulliez; M. Versteegen
• Keywords: FOS: Physical sciences; [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]; Nuclear Experiment (nucl-ex); 530; Nuclear Experiment

The probabilities for γ-ray and particle emission as a function of the excitation energy decaying nucleus are valuable observables constraining ingredients models that describe deexcitation nuclei near threshold. These essential in nuclear astrophysics applications. In this paper, we have first time simultaneously measured neutron <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mmultiscripts><a:mi>Pb</a:mi><a:mprescripts/><a:none/><a:mn>208</a:mn></a:mmultiscripts></a:math>. measurement was performed inverse kinematics at Experimental Storage Ring (ESR) GSI/FAIR facility, where <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"><b:mmultiscripts><b:mi>Pb</b:mi><b:mprescripts/><b:none/><b:mn>208</b:mn></b:mmultiscripts></b:math> beam interacted through <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"><c:mrow><c:mmultiscripts><c:mi>Pb</c:mi><c:mprescripts/><c:none/><c:mn>208</c:mn></c:mmultiscripts><c:mo>(</c:mo><c:mi>p</c:mi><c:mo>,</c:mo><c:msup><c:mrow><c:mi>p</c:mi></c:mrow><c:mo>′</c:mo></c:msup><c:mo>)</c:mo></c:mrow></c:math> reaction with hydrogen gas jet target. Instead detecting γ rays neutrons emitted by <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"><d:mmultiscripts><d:mi>Pb</d:mi><d:mprescripts/><d:none/><d:mn>208</d:mn></d:mmultiscripts></d:math>, detected heavy beamlike residues produced after emission. were fully separated dipole magnet ESR outstanding efficiencies. comparison model calculations has allowed us to test select different descriptions strength level density available literature. Published American Physical Society 2025