Neutrino and antineutrino neutral interactions

In the recently published work titled Neutral current neutrino and antineutrino scattering off the polarized nucleon, Krzysztof Graczyk and Beata Kowal discuss neutrino and antineutrino neutral interactions with polarized nucleons.

The measurement of electroweak interactions of neutrinos with nucleons that do not exchange electric charge (known as interactions through neutral currents) is a key element in learning about the mechanism of those interactions and studies of the electroweak structure of the nucleon. Interactions through neutral currents are measured by experiments studying the breaking of CP symmetry in the lepton sector. Additionally, the neutrinos emitted during a supernova explosion possess such low energy that they interact solely through neutral currents.

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In conventional measurements of neutrino and antineutrino interactions through neutral currents it is difficult to discern whether a given process was a neutrino or antineutrino one. However, in the recent scientific work by doctors Krzysztof Graczyk and Beata Kowal, published in the journal Phys. Rev. D 108, 093002, it has been proven that when a neutrinos/antineutrinos scatter on a polarized nucleon, it becomes possible to discern neutrino processes from antineutrino. Moreover, the measurement of spin asymmetry allows the extraction of information on the nature of the interaction (at the hadronic level) and makes it possible to explore the mechanism of this phenomenon.

Link to the paper: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.108.093002

Projekt "Zintegrowany Program Rozwoju Uniwersytetu Wrocławskiego 2018-2022" współfinansowany ze środków Unii Europejskiej z Europejskiego Funduszu Społecznego

Fundusze Europejskie
Rzeczpospolita Polska
Unia Europejska
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