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Physical Review D

Open Access

Analysis of experimental data on neutron decay for the possibility of the existence of the right vector boson $W_{R}$

A. P. Serebrov ^*, O. M. Zherebtsov, A. K. Fomin, R. M. Samoilov, and N. S. Budanov

NRC “Kurchatov Institute” Petersburg Institute of Nuclear Physics, 188300, Gatchina, Russia

^*Contact author: serebrov_ap@pnpi.nrcki.ru

Phys. Rev. D 112, 115012 – Published 3 December, 2025

DOI: https://doi.org/10.1103/fl44-1b8b

Abstract

The analysis of the latest most accurate experimental data on neutron decay for the possibility of the existence of the right vector boson $W_{R}$ is carried out. As a result of the analysis within the framework of the left-right symmetric model, it was found that there is an indication of the existence of the right vector boson $W_{R}$ with a mass of $M_{W_{R}} = 304_{- 20}^{+ 24} GeV$ , and a mixing angle with $W_{L}$ : $ζ = - 0.039 \pm 0.0 14$ . It is shown that this result does not contradict the experiments at colliders to search for a hypothetical vector boson. In addition, it is shown that it is possible to describe the effects of $C P$ violation in decays of neutral $K$ -mesons and $D$ -mesons using the parameters of the extended left-right symmetric model obtained from neutron decay, i.e., squared masses of the left and right bosons ratio and the mixing angle. The formation of baryon-lepton asymmetry of the Universe is considered within the framework of the left-right model of weak interaction with $C P$ violation.

Physics Subject Headings (PhySH)

Neutrons

Article Text

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