Journal article 538 views 94 downloads
Composite two-Higgs doublet model from dilaton effective field theory
Nuclear Physics B, Volume: 983, Start page: 115930
Swansea University Author: Maurizio Piai
-
PDF | Version of Record
© 2022 The Author(s). This is an open access article under the CC BY license
Download (585.42KB)
DOI (Published version): 10.1016/j.nuclphysb.2022.115930
Abstract
We construct a composite two-Higgs-doublet model (2HDM) within the context of dilaton effective field 24 theory. This EFT describes the particle spectrum observed in lattice simulations of a near-conformal SU(3) 25 gauge field theory. A second Higgs doublet is naturally accommodated within the EFT,...
Published in: | Nuclear Physics B |
---|---|
ISSN: | 0550-3213 |
Published: |
Elsevier BV
2022
|
Online Access: |
Check full text
|
URI: | https://cronfa.swan.ac.uk/Record/cronfa60799 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Abstract: |
We construct a composite two-Higgs-doublet model (2HDM) within the context of dilaton effective field 24 theory. This EFT describes the particle spectrum observed in lattice simulations of a near-conformal SU(3) 25 gauge field theory. A second Higgs doublet is naturally accommodated within the EFT, used previously 26 to construct a one-Higgs-doublet model. We explore the interplay of phenomenological and EFT require- 27 ments, supplemented by information from numerical lattice studies of the SU(3) gauge theory with eight 28 fundamental (Dirac) fermions. We build a viable model with moderate parameter tuning. In the relevant 29 portion of parameter space, we match the model to a conventional general description of 2HDMs, and com- 30 ment on the role of custodial symmetry (breaking) in the scalar potential. Contributions to the precision 31 electroweak parameter T provide a possible explanation for the recent measurement of the W-boson mass 32 by CDF II. |
---|---|
College: |
Faculty of Science and Engineering |
Funders: |
The work of MP has been supported in part by the STFC Consolidated Grants ST/P00055X/1 and ST/T000813/1. MP has also received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme under grant agreement No. 813942. |
Start Page: |
115930 |