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On the Possibility of Measuring the Ratio GA/GV by means of Polarized Ultracold Neutrons

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Abstract

The possibility of experimentally determining the ratio λ of the axial weak-interaction constant GA to the vector weak-interaction constant GV by simultaneously measuring the electron and neutrino asymmetries at the same setup is discussed. The proposed measurement and data-processing procedures are described in detail. The determination of λ by the method in question permits disregarding the possible contribution of the Fierz interference term and dispensing with an accurate measurement of the neutron polarization. It is shown that this method makes it possible to measure λ to a precision at a level of 10−4.

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Acknowledgements

This work was supported by Russian Science Foundation (project no. 14-22-00105).

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Authors and Affiliations

  1. Petersburg Nuclear Physics Institute, National Research Center Kurchatov Institute, Gatchina, 188300, Russia

    A. P. Serebrov, O. M. Zherebtsov, A. N. Murashkin, G. N. Klyushnikov & A. K. Fomin

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  1. A. P. Serebrov
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  2. O. M. Zherebtsov
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  3. A. N. Murashkin
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  4. G. N. Klyushnikov
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  5. A. K. Fomin
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Correspondence to A. P. Serebrov.

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Serebrov, A.P., Zherebtsov, O.M., Murashkin, A.N. et al. On the Possibility of Measuring the Ratio GA/GV by means of Polarized Ultracold Neutrons. Phys. Atom. Nuclei 82, 98–107 (2019). https://doi.org/10.1134/S1063778819020121

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  • DOI: https://doi.org/10.1134/S1063778819020121

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