Recent results of the DANSS experiment

被引:0
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作者
Danilov, M. [1 ]
机构
[1] Russian Acad Sci, Lebedev Phys Inst, 53 Leninskiy Prospekt, Moscow 119991, Russia
基金
俄罗斯科学基金会;
关键词
SEARCH;
D O I
暂无
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 present new results of the DANSS experiment on the searches for sterile neutrinos. They are based on 2.1 million of inverse beta decay events collected at 10.7, 11.7 and 12.7 meters from the reactor core of the 3.1 GW Kalinin Nuclear Power Plant in Russia. This data sample is 2.5 times larger than the data sample in the previous DANSS publication. The search for the sterile neutrinos is performed using the ratio of (nu) over tilde (e) spectra at two distances. This method is very robust against systematic uncertainties in the (nu) over tilde (e) spectrum and the detector efficiency. We do not see any statistically significant sign for the (nu) over tilde (e) oscillations. This allows us to exclude further a large and interesting part of the sterile neutrino parameter space. All results are preliminary.
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