First measurement of the neutron-emission probability with a surrogate reaction in inverse kinematics at a heavy-ion storage ring

Neutron-induced reaction cross sections of short-lived nuclei are imperative to understand the origin of heavy elements in stellar nucleosynthesis and for societal applications, but their measurement is extremely complicated due to the radioactivity of the targets involved. One way of overcoming thi...

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Autores principales: Sguazzin, M. (Autor) , Jurado, B. (Autor) , Pibernat, J. (Autor) , Swartz, J. A. (Autor) , Grieser, M. (Autor) , Glorius, J. (Autor) , Litvinov, Yu. A. (Autor) , Adamczewski-Musch, J. (Autor) , Alfaurt, P. (Autor) , Ascher, P. (Autor) , Audouin, L. (Autor) , Berthelot, C. (Autor) , Blank, B. (Autor) , Blaum, Klaus (Autor) , Brückner, B. (Autor) , Dellmann, S. (Autor) , Dillmann, I. (Autor) , Domingo-Pardo, C. (Autor) , Dupuis, M. (Autor) , Erbacher, P. (Autor) , Flayol, M. (Autor) , Forstner, O. (Autor) , Freire-Fernández, D. (Autor) , Gerbaux, M. (Autor) , Giovinazzo, J. (Autor) , Grévy, S. (Autor) , Griffin, C. J. (Autor) , Gumberidze, A. (Autor) , Heil, S. (Autor) , Heinz, A. (Autor) , Hess, R. (Autor) , Kurtulgil, D. (Autor) , Kurz, N. (Autor) , Leckenby, G. (Autor) , Litvinov, S. (Autor) , Lorentz, B. (Autor) , Méot, V. (Autor) , Michaud, J. (Autor) , Pérard, S. (Autor) , Petridis, N. (Autor) , Popp, U. (Autor) , Ramos, D. (Autor) , Reifarth, R. (Autor) , Roche, M. (Autor) , Sanjari, M. S. (Autor) , Sidhu, R. S. (Autor) , Spillmann, U. (Autor) , Steck, M. (Autor) , Stöhlker, Th. (Autor) , Thomas, B. (Autor) , Thulliez, L. (Autor) , Versteegen, M. (Autor) , Włoch, B. (Autor)
Formato: Article (Journal)
Lenguaje:inglés
Publicado: February 18, 2025
In: Physical review letters
Year: 2025, Volumen: 134, Número: 7, Pages: 1-6
ISSN:1079-7114
DOI:10.1103/PhysRevLett.134.072501
Acceso en línea:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.134.072501
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.134.072501
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Notas de Autor:M. Sguazzin, B. Jurado, J. Pibernat, J. A. Swartz, M. Grieser, J. Glorius, Yu. A. Litvinov, J. Adamczewski-Musch, P. Alfaurt, P. Ascher, L. Audouin, C. Berthelot, 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, and B. Włoch
Descripción
Sumario:Neutron-induced reaction cross sections of short-lived nuclei are imperative to understand the origin of heavy elements in stellar nucleosynthesis and for societal applications, but their measurement is extremely complicated due to the radioactivity of the targets involved. One way of overcoming this issue is to combine surrogate reactions with the unique possibilities offered by heavy-ion storage rings. In this work, we describe the first surrogate-reaction experiment in inverse kinematics, which we successfully conducted at the Experimental Storage Ring (ESR) of the GSI/FAIR facility, using the 208Pb⁢(𝑝,𝑝′) reaction as a surrogate for neutron capture on 207Pb. Thanks to the outstanding detection efficiencies possible at the ESR, we were able to measure for the first time the neutron-emission probability as a function of the excitation energy of 208Pb. We have used this probability to select different descriptions of the 𝛾-ray strength function and nuclear level density, and provide reliable results for the neutron-induced radiative capture cross section of 207Pb at energies for which no experimental data exist.
Notas:Veröffentlicht: 18 Februar 2025
Gesehen am 27.05.2026
Descripción Física:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.134.072501