$��$-ray Strength Function for Barium Isotopes

التفاصيل البيبلوغرافية
العنوان: $��$-ray Strength Function for Barium Isotopes
المؤلفون: Utsunomiya, H., Renstr��m, T., Tveten, G. M., Goriely, S., Ari-izumi, T., Ingeberg, V. W., Kheswa, B. V., Lui, Y. -W., Miyamoto, S., Hilaire, S., P��ru, S., Koning, A. J.
بيانات النشر: arXiv, 2019.
سنة النشر: 2019
مصطلحات موضوعية: Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, FOS: Physical sciences, Physics::Atomic Physics, Nuclear Experiment (nucl-ex), Nuclear Experiment
الوصف: Photoneutron cross sections were measured for $^{137}$Ba and $^{138}$Ba at energies below two-neutron threshold using quasi-monochromatic $��$-ray beams produced in laser Compton-scattering at the NewSUBARU synchrotron radiation facility. The photoneutron data are used to constrain the $��$-ray strength function on the basis of the Hartree-Fock-Bogolyubov plus quasi-particle random phase approximation using the Gogny D1M interaction. Supplementing the experimentally constrained $��$-ray strength function with the zero-limit E1 and M1 contributions which are unique to the deexcitation mode, we discuss radiative neutron capture cross sections relevant to the s-process nucleosynthesis of barium isotopes in the vicinity of the neutron magic number 82.
arXiv admin note: substantial text overlap with arXiv:1811.00291, arXiv:1804.07654
DOI: 10.48550/arxiv.1906.06334
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::972caf87e889c3085d83fd2278c65a8d
رقم الانضمام: edsair.doi...........972caf87e889c3085d83fd2278c65a8d
قاعدة البيانات: OpenAIRE
الوصف
DOI:10.48550/arxiv.1906.06334