Limits on the Majorana neutrino mass and right-handed weak currents by neutrinoless double β decay of 100Mo -: art. no. 065501

被引：67

作者：

Ejiri, H ^{[1
]}

Fushimi, K

Hayashi, K

Kishimoto, T

Kudomi, N

Kume, K

Kuramoto, H

Matsuoka, K

Ohsumi, H

Takahisa, K

Yoshida, S

机构：

[1] Osaka Univ, Nucl Phys Res Ctr, Ibaraki, Osaka 567, Japan

[2] Univ Tokushima, Fac Integrated Arts & Sci, Tokushima 770, Japan

[3] Osaka Univ, Dept Phys, Toyonaka, Osaka 560, Japan

[4] Osaka Univ, Nucl Studies Lab, Toyonaka, Osaka 560, Japan

来源：

PHYSICAL REVIEW C | 2001年 / 63卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.63.065501

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：

Spectroscopic studies of neutrinoless double beta decays (0 nu beta beta) from Mo-100 were made by means of ELEGANT V. The most stringent limits on the 0 nu beta beta half-lives were obtained for the ground state transitions T-1/2(0 nu)(m(nu)) > 5.5(10.3) x 10(22). T-1/2(0 nu)(lambda) > 4.2(8.5) x 10(22), and T-1/2(0 nu)(eta) > 4.9(9.3) x 10(22) yr, with 90(68)% C.L., for the mass term <m(nu)> and for the right-handed weak current terms of < gamma > and < eta >, respectively. Using the nuclear matrix elements of the QRPA calculation by Tomoda et al., these limits lead to upper limits of <m(nu)> < 2.1(1.5) eV, <left angle bracket>lambda > < 3.2(2.5) x 10(-6), and <left angle bracket>eta > < 2.4(1.9) x 10(-8) with 90(68)% C.L. Limits on other terms beyond the standard theory are also discussed.

引用

页数：7

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