検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

The $$gamma$$SF method; Determination of radiative neutron-capture cross section for unstable nuclei

$$gamma$$線強度関数法による不安定核の中性子捕獲反応断面積の決定

宇都宮 弘章*; Goriely, S.*; 秋宗 秀俊*; 原田 秀郎 ; 北谷 文人; 後神 進史*; 豊川 弘之*; 山田 家和勝*; Lui, Y.-W.*

Utsunomiya, Hiroaki*; Goriely, S.*; Akimune, Hidetoshi*; Harada, Hideo; Kitatani, Fumito; Goko, Shinji*; Toyokawa, Hiroyuki*; Yamada, Kawakatsu*; Lui, Y.-W.*

An indirect method of determining radiative neutron-capture cross sections for unstable nuclei which we refer to as the $$gamma$$-ray strength function ($$gamma$$SF) method is outlined and applied to Zr and Sn isotopes. Photoneutron cross sections for $$^{91,92,94,96}$$Zr and $$^{117,116}$$Sn near neutron threshold show the presence of extra $$gamma$$-ray strengths known as giant M1 and pygmy E1 resonances on top of the low-energy $$gamma$$SF of GDR. Based on the $$gamma$$SF method, we present ($$n$$,$$gamma$$) cross sections for two radioactive nuclei, a long-lived fission product, $$^{93}$$Zr with T$$_{1/2}$$=1.5$$times$$10$$^{6}$$ y and an s-process branching point nucleus, $$^{95}$$Zr with T$$_{1/2}$$=64.0 d.

Access

:

- Accesses

InCites™

:

パーセンタイル:75.59

分野:Physics, Multidisciplinary

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.