Neutrino recoil force in electron-capture decay of polarized nuclei: Measurement prospects and potential applications

A. L. Barabanov and O. A. Titov
Phys. Rev. C 99, 045502 – Published 16 April 2019

Abstract

Due to a directional asymmetry of neutrino emission caused by parity violation, a sample of radioactive atoms experiences a small recoil force from neutrino radiation accompanying electron capture by polarized nuclei. An expression for this force is obtained for the case of allowed nuclear transitions. Prospects to measure this force by the use of modern micromechanical devices are considered. Numerical estimates for the force are presented for a number of most suitable radioactive isotopes. Potential applications for the weak interaction studies are discussed, including the possibility to search for hypothetical Lorentz invariance violation.

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  • Received 29 October 2018

DOI:https://doi.org/10.1103/PhysRevC.99.045502

©2019 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

A. L. Barabanov1,2 and O. A. Titov1,*

  • 1National Research Center “Kurchatov Institute”, 123182, Moscow, Russia
  • 2Moscow Institute of Physics and Technology, 141701, Dolgoprudny, Moscow Region, Russia

  • *titov_oa@nrcki.ru

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Issue

Vol. 99, Iss. 4 — April 2019

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