Effect of collective enhancement in level density in the fission of pre-actinides

Banerjee Tathagata; Nath S.; Jhingan A.; Saneesh N.; Kumar Mohit; Yadav Abhishek; Kaur Gurpreet; Dubey R.; Shareef M.; Laveen P. V.; Shamlath A.; Shaikh Md. Moin; Biswas S.; Gehlot J.; Golda K. S.; Sugathan P.; Pal Santanu

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Effect of collective enhancement in level density in the fission of pre-actinides

机译：集体增强在前辐射性裂变中水平密度的影响

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Fission fragment angular distributions for three reactions, F-19 + W-182, F-19 + Re-187, and F-19 + Ir-193, are measured in the laboratory energy range of 82-120 MeV. Extracted fission cross sections of the present systems as well as those of three others from literature (F-19 + Os-192, F-19 + Pt-194, and F-19 + Au-197) are compared with the predictions of a statistical model which takes into account the effects of shell, orientation degree of freedom, and collective enhancement in level density (CELD). In all the cases, the standard statistical model predictions overestimate the measured fission cross section, indicating the presence of some amount of dynamical effects in the exit channel. A dissipation strength of 2 x 10(21) s(-1) is found to be sufficient to reproduce the data of all the reactions. No scaling of fission barrier height to fit the data is required.

机译：三个反应的裂变片段角分布，F-19 + W-182，F-19 + RE-187和F-19 + IR-193在82-120meV的实验室能量范围内测量。与文献（F-19 + OS-192，F-19 + PT-194和F-19 + AU-194）的提取的本系统的裂变横截面以及来自文献的三种（F-19 + OS-192，F-19 + AU-197）的裂变横截面被比较统计模型考虑了壳体，方向自由度和集体增强水平密度（CELD）的影响。在所有情况下，标准统计模型预测高估了测量的裂变横截面，表示出口通道中存在一定量的动态效应。发现2×10（21）秒（-1）的耗散强度足以再现所有反应的数据。不需要裂变屏障高度的缩放，以适应数据。

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《Physical review, C》 |2017年第1期|共6页
作者
Banerjee Tathagata; Nath S.; Jhingan A.; Saneesh N.; Kumar Mohit; Yadav Abhishek; Kaur Gurpreet; Dubey R.; Shareef M.; Laveen P. V.; Shamlath A.; Shaikh Md. Moin; Biswas S.; Gehlot J.; Golda K. S.; Sugathan P.; Pal Santanu;
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作者单位

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Panjab Univ Dept Phys Chandigarh 160014 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Cent Univ Kerala Sch Math &

Phys Sci Dept Phys Kasaragod 671314 India;

Cent Univ Kerala Sch Math &

Phys Sci Dept Phys Kasaragod 671314 India;

Cent Univ Kerala Sch Math &

Phys Sci Dept Phys Kasaragod 671314 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Murshidabad Coll Engn &

Technol Dept Phys Berhampur 742102 Murshidabad India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

Inter Univ Accelerator Ctr Nucl Phys Grp Aruna Asaf Ali Marg POB 10502 New Delhi 110067 India;

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正文语种 eng
中图分类原子核物理学、高能物理学;
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1. Effect of collective enhancement in level density in the fission of pre-actinides [J] . Banerjee Tathagata, Nath S., Jhingan A., Physical review, C . 2017,第1期

机译：集体增强在前辐射性裂变中水平密度的影响
2. Puzzle of collective enhancement in the nuclear level density [J] . Deepak Pandit, Balaram Dey, Srijit Bhattacharya, Physics letters . 2021,第1期

机译：核水平密度集体增强难题
3. Collective enhancements in nuclear level densities [J] . Dossing Thomas, Aberg Sven The European Physical Journal, A. Hadrons and Nuclei . 2019,第12期

机译：核水平密度的集体增强
4. Collective State Enhancement of Nuclear LevelDensity [C] . Vladimir A. Plujko, Oleksandr M. Gorbachenko, Igor M. Kadenko, International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics . 2009

机译：集体州增强核利率
5. The relationship between the levels of teacher collective efficacy and district collective efficacy in ascension parish. [D] . Pujol, Patrice Bourgeois. 2013

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6. Voluntary exercise and caloric restriction enhance hippocampal dendritic spine density and BDNF levels in diabetic mice [O] . Alexis M. Stranahan, Kim Lee, Bronwen Martin, -1

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7. Direct evidence of fadeout of collective enhancement in nuclear level density [O] . K. Banerjee, Pratap Roy, Deepak Pandit, 2017

机译：核水平密度集体增强淡出的直接证据
8. Role of Collective Effects in Systematics of Level Density of Nuclei [R] . Ignatyuk, A. V., Istekov, K. K., Smirenkin, G. N. 1979

机译：集体效应在核子能级密度系统学中的作用

Effect of collective enhancement in level density in the fission of pre-actinides

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