Gamma-ray production cross sections in proton interactions with natMg, natSi and 56Fe targets: measurement over the energy range of E_p = 66-125 MeV, data analysis, results and discussion. Astrophysical implications

@misc{debabi2026gammaray,
  title = {{Gamma-ray production cross sections in proton interactions with natMg, natSi and 56Fe targets: measurement over the energy range of $E_p = 66$-125 MeV, data analysis, results and discussion. Astrophysical implications}},
  author = {M. Debabi and S. Ouichaoui and A. Belhout and J. Kiener and E. A. Lawrie and J. J. Lawrie and D. Moussa and W. Yahia-Cherif and Y. Rahma and H. Benhabiles-Mezhoud and A. Trabelsi and T. D. Bucher and A. Chafa and L. J. Conradie and S. Damache and I. Deloncle and J. L. Easton and C. Hamadache and F. Hammache and P. Jones and V. B. Kheswa and N. A. Khumalo and A. Kunyana and T. Lamula and S. N. T. Majola and J. Ndayishimye and D. Negi and S. P. Noncolela and S. Ouziane and P. Papka and N. de Séréville and J. F. Sharpey-Schafer and O. Shirinda and V. Tatischeff and M. Wiedeking and S. Wyngaardt},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2607.02202},
  eprint = {2607.02202},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.02202},
}

TY  - UNPB
TI  - Gamma-ray production cross sections in proton interactions with natMg, natSi and 56Fe targets: measurement over the energy range of E_p = 66-125 MeV, data analysis, results and discussion. Astrophysical implications
AU  - M. Debabi
AU  - S. Ouichaoui
AU  - A. Belhout
AU  - J. Kiener
AU  - E. A. Lawrie
AU  - J. J. Lawrie
AU  - D. Moussa
AU  - W. Yahia-Cherif
AU  - Y. Rahma
AU  - H. Benhabiles-Mezhoud
AU  - A. Trabelsi
AU  - T. D. Bucher
AU  - A. Chafa
AU  - L. J. Conradie
AU  - S. Damache
AU  - I. Deloncle
AU  - J. L. Easton
AU  - C. Hamadache
AU  - F. Hammache
AU  - P. Jones
AU  - V. B. Kheswa
AU  - N. A. Khumalo
AU  - A. Kunyana
AU  - T. Lamula
AU  - S. N. T. Majola
AU  - J. Ndayishimye
AU  - D. Negi
AU  - S. P. Noncolela
AU  - S. Ouziane
AU  - P. Papka
AU  - N. de Séréville
AU  - J. F. Sharpey-Schafer
AU  - O. Shirinda
AU  - V. Tatischeff
AU  - M. Wiedeking
AU  - S. Wyngaardt
PY  - 2026
DA  - 2026/09/26
PB  - arXiv
DO  - 10.48550/arxiv.2607.02202
UR  - https://arxiv.org/abs/2607.02202
AB  - We have measured nuclear gamma-ray line production cross sections in interactions of highly accelerated proton beams with various target nuclei abundant in astrophysical sites. The experiments were carried out at the 200-MV Separated Sector Cyclotron (SSC) of iThemba LABS (near Cape Town, in South Africa) using a high-energy resolution and high efficiency detection system for registering the emitted gamma-ray photons. We report and discuss in this paper the collected experimental data sets for various gamma-ray lines produced in bombarding natMg, natSi and 56Fe targets with proton beams of incident energies of Ep = 66, 80, 95, 110 and 125 MeV. After describing the experimental set up and the data analysis method used, we report and discuss our total experimental cross section results in comparisons to previous counterparts from the literature, to a semi-empirical compilation and to the predictions of nuclear reaction theory via performed TALYS code calculations. Significantly improved agreements between theory and experiment are point out when using our modified optical model potential and Bêta (lambda) level deformation parameters instead of the default input parameters built in TALYS. Finally, we put into perspective the applications of our results in nuclear physics and astrophysics with drawing relevant conclusions. gammaKeywords: Proton-induced nuclear reactions; gamma-ray production cross sections; gamma-ray spectrometry; gamma-ray spectroscopy; Astrophysical implications
ER  -