Photoneutron cross sections for Mo isotopes; A Step toward a unified understanding of(,n) and (n,)reactions

Mo同位体の光核反応断面積; (,n)及び(n,)反応の統一的理解に向けて

宇都宮 弘章*; Goriely, S.*; 近藤 壮雄*; 岩本 ちひろ*; 秋宗 秀俊*; 山県 民穂*; 豊川 弘之*; 原田 秀郎   ; 北谷 文人  ; Lui, Y.-W.*; Larsen, A. C.*; Guttormsen, M.*; Koehler, P. E.*; Hilaire, S.*; Pru, S.*; Martini, M.*; Koning, A. J.*

Utsunomiya, Hiroaki*; Goriely, S.*; Kondo, Takeo*; Iwamoto, Chihiro*; Akimune, Hidetoshi*; Yamagata, Tamio*; Toyokawa, Hiroyuki*; Harada, Hideo; Kitatani, Fumito; Lui, Y.-W.*; Larsen, A. C.*; Guttormsen, M.*; Koehler, P. E.*; Hilaire, S.*; Pru, S.*; Martini, M.*; Koning, A. J.*

Photoneutron cross sections were measured for Mo,Mo,Mo, Mo,Mo, and Mo near the neutron threshold with quasi-monochromatic laser-Compton scattering -rays. The photoneutron data were analyzed with the Skyrme Hartree-Fock-Bogoliubov (HFB) plus quasiparticle random phase approximation (QRPA) model and the axially-symmetric-deformed Gogny HFB plus QRPA model of E1 -ray strength. Combining the -ray strength function constrained by the present photoneutron data with either the nuclear resonance fluorescence data or the updated Oslo data to supplement the data below the neutron threshold, a thorough analysis of the reverse (n,) cross sections is made whenever measurements are available. The Oslo data and the corresponding uncertainties are updated based on the latest results of the s-wave neutron spacing and the average radiative width determined in particular for Mo.