Constraining sterile neutrinos with a low energy beta-beam

被引：21

作者：

Agarwalla, Sanjib K. ^{[1
]}

Huber, Patrick ^{[1
]}

Link, Jonathan M. ^{[1
]}

机构：

[1] Virginia Tech, IPNAS, Dept Phys, Blacksburg, VA 24061 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2010年 / 01期

关键词：

Neutrino Physics; Beyond Standard Model; OSCILLATIONS; COSMOLOGY;

D O I：

10.1007/JHEP01(2010)071

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：

We show that a low energy beta-beam facility can be used to search for sterile neutrinos by measuring the disappearance of electron anti-neutrinos. This channel is particularly sensitive since it allows to use inverse beta decay as detection reaction; thus it is free from hadronic uncertainties, provided the neutrino energy is below the pion production threshold. This corresponds to a choice of the Lorentz gamma similar or equal to 30 for the 6 He parent ion. Moreover, a disappearance measurement allows the constraint of sterile neutrino properties independently of any CP violating effects. A moderate detector size of a few 100 tons and ion production rates of similar to 2 center dot 10(13) s(-1) are sufficient to constrain mixing angles as small as sin(2)2 theta = 10(-2) at 99% confidence level.

引用

页数：14

共 41 条

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