On the observable spectrum of theories with a Brout-Englert-Higgs effect

2017/09/21 by Axel Maas, René Sondenheimer, Pascal Törek · 1 voice
Physics and Astronomy · #hep-lat #hep-ph #hep-th

paper · pdf · doi:10.1016/j.aop.2019.01.010

published as Annals of Physics 402 (2019) 18-44 · 20 pages, 9 tables v3: Minor modification, version equivalent to published one v2: Intro extended, presentation reworked, 20 pages, 9 Tables

arxiv published 2017/09/21 · arxiv created 2019/02/13 · arxiv updated 2019/02/14

Abstract

The physical, observable spectrum in gauge theories is made up from gauge-invariant states. The Fröhlich-Morchio-Strocchi mechanism allows in the standard model to map these states to the gauge-dependent elementary W, Z and Higgs states. This is no longer necessarily the case in theories with a more general gauge group and Higgs sector. We classify and predict the physical spectrum for a wide range of such theories, with special emphasis on GUT-like cases, and show that discrepancies between the spectrum of elementary fields and physical particles frequently arise.

Discussions

• We have predicted that this should be possible some years ago in https://arxiv.org/abs/1709.07477 - it was quite hard technically to get simulations for this up and running. [bsky, 0 points, 1 comments]

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