Measuring the Neutrino Helicity with a Compton Polarimeter

A possible right-handed component affecting electron-neutrino helicity is probed using a Compton polarimeter. Compared to previous experiments of this kind, the systematic uncertainty is significantly reduced by independently calibrating the polarimeter efficiency. The electron-neutrino helicity is...

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Bibliographic Details
Published in:Physics of particles and nuclei letters 2019-09, Vol.16 (5), p.537-541
Main Authors: Brudanin, V. B., Egorov, V. G., Zhitnikov, I. V., Shirchenko, M. V., Shitov, Yu. A.
Format: Article
Language:English
Subjects:
Helicity
Neutrinos
Particle and Nuclear Physics
Physics
Physics and Astronomy
Physics of Elementary Particles and Atomic Nuclei. Experiment
Polarimeters
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Summary:A possible right-handed component affecting electron-neutrino helicity is probed using a Compton polarimeter. Compared to previous experiments of this kind, the systematic uncertainty is significantly reduced by independently calibrating the polarimeter efficiency. The electron-neutrino helicity is measured as in agreement with previous measurements. The bigger than expected total error on H  largely arises from the relatively low efficiency of the polarimeter. In connection with this, one should reanalyze the results of previous experiments.
ISSN:1547-4771
1531-8567
DOI:10.1134/S154747711905008X