Double beta decays and neutrinos

被引：17

作者：

Ejiri, H ^{[1
]}

机构：

[1] Osaka Univ, RCNP, Ibaraki, Osaka 5670047, Japan

[2] JASRI, Mikazuki, Hyogo 6795198, Japan

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2001年 / 91卷

关键词：

D O I：

10.1016/S0920-5632(00)00949-X

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The present status of double beta decays is briefly reported. Neutrino-less double beta decays(0 nu beta beta )are sensitive to nu -masses and weak interactions beyond the standard model(SM). The present limits on the 0 nu beta beta half-lives for Ge-76, and Mo-100, Cd-116,, Te-128,Te-130, Xe-136 give upper limits of 0.3 similar to1.3 eV and 1.1 similar to4 eV, respectively, depending on the nuclear matrix elements M-0 nu. They give stringent limits on the right-handed currents; the Majoron-v couplings, and others beyond SM. Theoretical calculations and experimental evaluations for M-0 nu are discussed. Remarks on 0 nu beta beta experiments, M-0 nu evaluations, and applications of pp detectors are presented.

引用

页码：255 / 261

页数：7

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