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State-of-the-Art Calculation of the Decay Rate of Electroweak Vacuum in the Standard Model

So Chigusa, Takeo Moroi, and Yutaro Shoji
Phys. Rev. Lett. 119, 211801 – Published 21 November 2017

Abstract

The decay rate of the electroweak (EW) vacuum is calculated in the framework of the standard model (SM) of particle physics, using the recent progress in the understanding of the decay rate of metastable vacuum in gauge theories. We give a manifestly gauge-invariant expression of the decay rate. We also perform a detailed numerical calculation of the decay rate. With the best-fit values of the SM parameters, we find that the decay rate of the EW vacuum per unit volume is about 10554Gyr1Gpc3; with the uncertainty in the top mass, the decay rate is estimated as 10284101371Gyr1Gpc3.

  • Figure
  • Received 9 August 2017

DOI:https://doi.org/10.1103/PhysRevLett.119.211801

© 2017 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Particles & Fields

Authors & Affiliations

So Chigusa1, Takeo Moroi1, and Yutaro Shoji2

  • 1Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
  • 2Institute for Cosmic Ray Research, The University of Tokyo, Kashiwa 277-8582, Japan

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Issue

Vol. 119, Iss. 21 — 24 November 2017

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