Neutrino induced reactions for ν-process nucleosynthesis of 92Nb and 98Tc

被引：36

作者：

Cheoun, Myung-Ki ^{[1
]}

Ha, Eunja ^{[1
]}

Hayakawa, T. ^{[2
]}

Chiba, Satoshi ^{[2
,3
]}

Nakamura, Ko ^{[4
]}

Kajino, Toshitaka ^{[4
,5
]}

Mathews, Grant J. ^{[6
]}

机构：

[1] Soongsil Univ, Dept Phys, Seoul 156743, South Korea

[2] Japan Atom Energy Agcy, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[3] Tokyo Inst Technol, Nucl Reactors Res Lab, Meguro Ku, Tokyo 1528550, Japan

[4] Natl Astron Observ, Mitaka, Tokyo 1818589, Japan

[5] Univ Tokyo, Grad Sch Sci, Dept Astron, Tokyo 1130033, Japan

[6] Univ Notre Dame, Dept Phys, Ctr Astrophys, Notre Dame, IN 46556 USA

来源：

PHYSICAL REVIEW C | 2012年 / 85卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

REACTION CROSS-SECTIONS; BETA-DECAY; 3-QUASI-PARTICLE STATES; NUCLEAR-SCIENCE; LIBRARY; QRPA; NB-92-ZR-92;

D O I：

10.1103/PhysRevC.85.065807

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

It has recently been proposed that Nb-92(41) and Tc-98(43) may have been formed in the nu-process. We investigate the neutrino induced reactions related to the nu-process origin of these two odd-odd nuclei. We find that the main neutrino reactions to produce Nb-92(41) are the charged-current (CC) Zr-92(nu(e), e(-))Nb-92 and the neutral-current (NC) Nb-93[nu((nu) over bar), nu'((nu) over bar)' n]Nb-92 reactions. Similarly, the main reactions for Tc-98(43), are the CC reaction Mo-98(nu(e), e(-))Tc-98 and the NC reaction Ru-99[nu((nu) over bar), nu'((nu) over bar)' p]Tc-98. Our calculations are carried out using the quasiparticle random phase approximation. Numerical results are presented for the energy and temperature dependent cross sections. Since charge exchange reactions by neutrons may also lead to the formation of Nb-92(41) and Tc-98(43), we also discuss the feasibility of the Mo-92(n, p)Nb-92 and Ru-98(n, p)Tc-98 reactions to produce these nuclei.

引用

页数：12

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