Non-standard interactions using the OPERA experiment
Non-standard interactions using the OPERA experiment
复制标题
使用 OPERA 实验的非标准交互
DOI：
10.1140/epjc/s10052-008-0683-6
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Mattias Westerberg
中科院分区：
文献类型：
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作者：
M. Blennow;D. Meloni;T. Ohlsson;F. Terranova;Mattias Westerberg
我们研究了OPERA实验中非标准相互作用对中微子振荡的影响。特别地，我们研究了非标准相互作用参数εμτ。我们表明，OPERA实验有一个独特的机会，以减少该参数的允许区域相比，其他实验，如MINOS实验，主要是由于较高的中微子能量的CNGS光束相比，NuMI光束。我们发现，OPERA主要是敏感的标准和非标准参数的组合，由此产生的反共振效应可能会抑制预期的事件数。此外，我们还表明，用中微子和反中微子运行OPERA各五年将有助于解决标准参数和εμτ之间的简并度。这种情况明显好于简单地通过中微子运行10年使统计数据翻倍的情况。
We investigate the implications of non-standard interactions on neutrino oscillations in the OPERA experiment. In particular, we study the non-standard interaction parameter εμτ. We show that the OPERA experiment has a unique opportunity to reduce the allowed region for this parameter compared with other experiments such as the MINOS experiment, mostly due to the higher neutrino energies in the CNGS beam compared to the NuMI beam. We find that OPERA is mainly sensitive to a combination of standard and non-standard parameters and that a resulting anti-resonance effect could suppress the expected number of events. Furthermore, we show that running OPERA for five years each with neutrinos and anti-neutrinos would help in resolving the degeneracy between the standard parameters and εμτ. This scenario is significantly better than the scenario with a simple doubling of the statistics by running with neutrinos for ten years.