Τίτλος:
Cross-section measurements of radiative proton-capture reactions in Cd 112 at energies of astrophysical interest
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Reactions involving the group of nuclei commonly known as p nuclei are part of the nucleosynthetic mechanisms at astrophysical sites. The In113 nucleus is such a case with several open questions regarding its origin at extreme stellar environments. In this paper, the experimental study of the cross sections of the radiative proton-capture reaction Cd112(p,γ)In113 is attempted for the first time at energies lying inside the Gamow window with an isotopically enriched Cd112 target. Two different techniques, the in-beam γ-ray spectroscopy and the activation method, have been applied. The latter method is required to account for the presence of a low-lying In113 isomer at 392 keV having a half-life of ≈100min. From the cross sections, the astrophysical S factors and the isomeric ratios have been additionally deduced. The experimental results are compared to detailed Hauser-Feshbach theoretical calculations using talys and discussed in terms of their significance to the optical model potential involved. © 2019 American Physical Society.
Συγγραφείς:
Psaltis, A.
Khaliel, A.
Assimakopoulou, E.-M.
Kanellakopoulos, A.
Lagaki, V.
Lykiardopoulou, M.
Malami, E.
Tsavalas, P.
Zyriliou, A.
Mertzimekis, T.J.
Περιοδικό:
Physical Review C
Εκδότης:
American Physical Society
DOI:
10.1103/PhysRevC.99.065807
