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The price of an electroweak monopole

Research output: Contribution to journalArticlepeer-review

Original languageEnglish
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Early online date3 Mar 2016
Accepted/In press22 Feb 2016
E-pub ahead of print3 Mar 2016


  • 1-s2.0-S0370269316001441-main

    1_s2.0_S0370269316001441_main.pdf, 873 KB, application/pdf

    Uploaded date:03 Mar 2016

    Version:Accepted author manuscript

    Licence:CC BY

King's Authors


Abstract In a recent paper, Cho, Kim and Yoon (CKY) have proposed a version of the SU ( 2 ) × U ( 1 ) Standard Model with finite-energy monopole and dyon solutions. The CKY model postulates that the effective U(1) gauge coupling →∞ very rapidly as the Englert–Brout–Higgs vacuum expectation value →0, but in a way that is incompatible with LHC measurements of the Higgs boson H → γ γ decay rate. We construct generalizations of the CKY model that are compatible with the H → γ γ constraint, and calculate the corresponding values of the monopole and dyon masses. We find that the monopole mass could be <5.5 TeV, so that it could be pair-produced at the LHC and accessible to the MoEDAL experiment.

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