Higgs-Higgs bound state due to new physics at a TeV

By B. Grinstein, Michael Trott. 2007

199 citations recorded by the source corpus.

We examine the effects of new physics on the Higgs sector of the standard model, focusing on the effects on the Higgs self-couplings. We demonstrate that a low mass Higgs, m{sub h}<2m{sub t}, can have a strong effective self-coupling due to the effects of a new interaction at a TeV. We investigate the possibility that the first evidence of such an interaction could be a Higgs-Higgs bound state. To this end, we construct an effective field theory formalism to examine the physics of such a low mass Higgs boson. We explore the possibility of a nonrelativistic bound state of the Higgs field (Higgsium) at CERN's Large Hadron Collider and construct a nonrelativistic effective field theory of the Higgs sector that is appropriate for such studies (NRHET)

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/ec9d9ead359b201d330615ae5d1c973ead737e3e

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In Nuclear and High Energy Physics

Citations in the corpus

Low-energy effective field theory below the electroweak scale: operators and matching (2017, methodology): “eﬀects in spontaneously broken SMEFT were computed in Ref. [3]. – 13 – We stress that LEFT is the correct low-energy theory even in the case where the highenergy EFT is not given by SMEFT but by HEFT [36, 37], which relaxes the assumption that the Higgs particle is part of a fundamental electroweak ”
Higgs Physics at the HL-LHC and HE-LHC (2019, background): “This Lagrangian, taken in isolation, leads to a theory with a parametrically low cutoff: it has therefore to be thought as part of a bigger EFT: the EWChL [188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205].”