80Se(n,γ) cross-section measurement at CERN n_TOF (CROSBI ID 697831)
Prilog sa skupa u časopisu | kratko priopćenje | međunarodna recenzija
Podaci o odgovornosti
Babiano-Suarezg, V. ; ... ; Bosnar, Damir ; ... ; Žugec, Petar
n_TOF Collaboration
engleski
80Se(n,γ) cross-section measurement at CERN n_TOF
Radiative neutron capture cross section measurements are of fundamental importance for the study of the slow neutron capture (s-) process of nucleosynthesis. This mechanism is responsible for the formation of most elements heavier than iron in the Universe. Particularly relevant are branching nuclei along the s-process path, which are sensitive to the physical conditions of the stellar environment. One such example is the branching at 79Se (3.27 × 10^5 y), which shows a thermally dependent β-decay rate. However, an astrophysically consistent interpretation requires also the knowledge of the closest neighbour isotopes involved. In particular, the 80Se(n, γ) cross section directly affects the stellar yield of the "cold" branch leading to the formation of the s-only 82Kr. Experimentally, there exists only one previous measurement on 80Se using the time of flight (TOF) technique. However, the latter suffers from some limitations that are described in this presentation. These drawbacks have been significantly improved in a recent measurement at CERN n TOF. This contribution presents a summary of the latter measurement and the status of the data analysis.
80Se, neutron capture, neutron time of flight, n_TOF
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Podaci o prilogu
012001
2020.
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objavljeno
10.1088/1742-6596/1668/1/012001
Podaci o matičnoj publikaciji
Journal of physics. Conference series
1742-6588
1742-6596
Podaci o skupu
Nepoznat skup
predavanje
29.02.1904-29.02.2096