Higgs triplet extension of GRACE

Abstract

Much theoretical effort and automatization are required to confront new physics models with experimental data for many types of particle reactions at future colliders. In this context, we extend GRACE, an automatic calculation system for invariant amplitudes, to incorporate particles and interactions in the Georgi-Machacek model. With the extended GRACE system, we study fermiophobic Higgs boson production processes at $e^{+}{e}^{-}$ and $e^{-}{e}^{-}$ colliders in the model. The results show some advantages of $e^{-}{e}^{-}$ colliders over $e^{+}{e}^{-}$ colliders for new physics search and thus its complementary role.

22 pages, 7 figures; v2: 1 figure added, other minor additions and modifications, version accepted in EPJC

References in corpus (11)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The decoupling limit in the Georgi-Machacek model
• Unitarity bounds in the Higgs model including triplet fields with custodial symmetry
• Higgs couplings in a model with triplets
• Electroweak Phase Transition in Georgi-Machacek Model
• Electroweak phase transition and Higgs phenomenology in the Georgi-Machacek model
• Search for charged Higgs bosons produced in vector boson fusion processes and decaying into vector boson pairs in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Searching for the doubly-charged Higgs bosons in the Georgi-Machacek model at the electron-proton colliders
• GMCALC: a calculator for the Georgi-Machacek model
• Updated constraints on the Georgi-Machacek model from LHC Run 2