Cross Section Measurement of the \(^{82}\)Kr(p,\(\gamma\))\(^{83}\)Rb Reaction in Inverse Kinematics

• Published in: arXiv.org 2023-05
• Main Authors: Tsantiri, A, Palmisano-Kyle, A, Spyrou, A, Mohr, P, Berg, H C, DeYoung, P A, Dombos, A C, Gastis, P, Good, E C, Harris, C M, Liddick, S N, Lyons, S M, Olivas-Gomez, O, Owens-Fryar, G, Pereira, J, Richard, A L, Simon, A, Smith, M K, Zegers, R G T
• Format: Article
• Language: English
• Subjects: Cross-sections; Cyclotrons; Gamma rays; Inverse kinematics; Statistical models
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.2305.14523

The total cross section of the \(^{82}\)Kr(p,\(\gamma\))\(^{83}\)Rb reaction was measured for the first time at effective center-of-mass energies between 2.4 and 3.0 MeV, within the relevant Gamow window for the astrophysical \(\gamma\) process. The experiment took place at the National Superconducting Cyclotron Laboratory at Michigan State University using the ReA facility. A \(^{82}\)Kr beam was directed onto a hydrogen gas cell located at the center of the Summing NaI(Tl) (SuN) detector. The obtained spectra were analyzed using the \(\gamma\)-summing technique and the extracted cross section was compared to standard statistical model calculations using the \textsc{non-smoker} and \textsc{talys} codes. The comparison indicates that standard statistical model calculations tend to overproduce the cross section of the \(^{82}\)Kr(p,\(\gamma\))\(^{83}\)Rb reaction relative to the experimentally measured values. Furthermore, the experimental data was used to provide additional constraints on the nuclear level density and \(\gamma\)-ray strength function used in the statistical model calculations.