Measurement of the Half-Life of the T=1/2 Mirror Decay of 19Ne and its Implication on Physics Beyond the Standard Model

被引：20

作者：

Broussard, L. J. ^{[1
,2
]}

Back, H. O. ^{[2
,3
]}

Boswell, M. S. ^{[2
,4
]}

Crowell, A. S. ^{[1
,2
]}

Dendooven, P. ^{[5
]}

Giri, G. S. ^{[5
]}

Howell, C. R. ^{[1
,2
]}

Kidd, M. F. ^{[1
,2
]}

Jungmann, K. ^{[5
]}

Kruithof, W. L. ^{[5
]}

Mol, A. ^{[5
]}

Onderwater, C. J. G. ^{[5
]}

Pattie, R. W., Jr. ^{[2
,3
]}

Shidling, P. D. ^{[5
]}

Sohani, M. ^{[5
]}

van der Hoek, D. J. ^{[5
]}

Rogachevskiy, A. ^{[5
]}

Traykov, E. ^{[5
]}

Versolato, O. O. ^{[5
]}

Willmann, L. ^{[5
]}

Wilschut, H. W. ^{[5
]}

Young, A. R. ^{[2
,3
]}

机构：

[1] Duke Univ, Durham, NC 27708 USA

[2] TUNL, Durham, NC 27708 USA

[3] N Carolina State Univ, Raleigh, NC 27695 USA

[4] Univ N Carolina, Chapel Hill, NC 27599 USA

[5] Univ Groningen, KVI, NL-9747 AA Groningen, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 21期

基金：

美国国家科学基金会;

关键词：

LIVES;

D O I：

10.1103/PhysRevLett.112.212301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The 1+/2 -> 1+/2 superallowed mixed mirror decay of Ne-19 to F-19 is excellently suited for high precision studies of the weak interaction. However, there is some disagreement on the value of the half-life. In a new measurement we have determined this quantity to be T-1/2 = 17.2832 +/- 0.0051((stat)) +/- 0.0066((syst)) s, which differs from the previous world average by 3 standard deviations. The impact of this measurement on limits for physics beyond the standard model such as the presence of tensor currents is discussed.

引用

页数：5

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