Phys.Rev. C 103, 045801 (2021)

T.Hayakawa, Y.Toh, A.Kimura, S.Nakamura, T.Shizuma, N.Iwamoto, S.Chiba, T.Kajino

Isomer production ratio of the ¹¹²Cd(n, γ) ¹¹³Cd reaction in an s-process branching point

NUCLEAR REACTIONS ¹¹²Cd(n, γ)¹¹³Cd/^113mCd, E=66.8-8587 eV neutrons from BL04 neutron beam line of the MLF at J-PARC; measured E(n), I(n) by time-of-flight method, Eγ, Iγ using ANNRI array of two cluster HPGe detectors, eight coaxial HPGe detectors, and BGO Compton-suppression shields. ¹¹³Cd; deduced γ-rays intensities decaying to the ground state and the isomer, isomer production ratios for 21 neutron resonances from 66.8 to 8587 eV, minor s-process contribution from the ¹¹³Cd isomer to the solar abundance of ¹¹⁵Sn, Jπ of 14 neutron resonances from comparison of experimental γ-ray intensities with the corresponding expected theoretical yields for 1/2-, 1/2+ and 3/2- resonances using CCONE Hauser-Feshbach statistical model calculations.

doi: 10.1103/PhysRevC.103.045801