Experimental Aspects of Nuclear Matrix Elements for Double Beta Decays and Astro Neutrinos

被引：1

作者：

Ejiri, Hiroyas ^{[1
]}

机构：

[1] Osaka Univ, Res Ctr Nucl Phys, Osaka 5670047, Japan

来源：

16TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2019) | 2020年 / 1468卷

关键词：

RESPONSES;

D O I：

10.1088/1742-6596/1468/1/012107

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report briefly recent experimental studies of nuclear responses (square of nuclear matrix element NME) for astro-neutrinos and double beta decays (DBDs) by single EC/beta decays, charge exchange reactions (CERs) and ordinary muou captures (OMCs). The NMEs are shown to be uniformly reduced with respect to quasi-particle and pnQRPA NMEs in wide multipole and momentum regions. The reduction is expressed by the quenching coefficient g(A)(eff)/g(A). Impact of the reduction on astro-neutrino and DBD studies is discussed.

引用

页数：4

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