UV descriptions of composite Higgs models without elementary scalars
By J. Barnard, T. Gherghetta, T. Ray. 2013
219 citations recorded by the source corpus.
A bstractWe consider four-dimensional UV descriptions of composite Higgs models without elementary scalars, in which four-fermion interactions are introduced to an underlying gauge theory like in the gauged NJL model. When the anomalous dimension of the fermion bilinear is large, these interactions drive the spontaneous global symmetry breaking in the model, with the Higgs identified as a Nambu-Goldstone boson. The UV descriptions support composite top partner operators, also with large anomalous dimensions, thereby providing an explicit realisation of the idea of partial compositeness. In particular, the composite SO(6)/SO(5) model can be described by an Sp gauge theory with four flavours of fermion, together with a vector-like pair of fermions transforming in the antisymmetric representation and charged under SU(3) colour. These fermions confine to produce both the Higgs and top partner bound states. Our methods can also be applied to different coset groups, suggesting that four-fermion operators can describe the underlying UV dynamics of other composite Higgs models.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/96a6a083ad792006141b95299f16e2f24594b586
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In Nuclear and High Energy Physics
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Citations in the corpus
- Beyond the Standard Model Physics at the HL-LHC and HE-LHC (2018, result): “We present results for two of the twelve models [628, 629], denoted respectively M6 and M8 in Ref.”
- UV completions of partial compositeness: the case for a SU(4) gauge group (2014, unknown): “The solutions to the constraints above where presented in tables 2 and 3 of [31] and included the model presented in [30].”
- Fundamental composite dynamics: A review (2020, methodology): “As noted in [115] because any purely fermionic extension [62, 63, 217, 220] is required to have composite baryons with dimensions close to 5/2, these baryons would presumably behave as if they were made by a fermion and a composite scalar similar to ours (see also [51] for a supersymmetric realizati”