Higgs triplet extension of GRACE
Yusaku Kouda, Tadashi Kon, Yoshimasa Kurihara, Takahiro Ueda

TL;DR
This paper extends the GRACE system to include the Georgi-Machacek Higgs triplet model, enabling automated calculations of particle reactions, and demonstrates its application in collider physics for new physics searches.
Contribution
The authors develop an extended version of GRACE to incorporate the Georgi-Machacek model, facilitating automated amplitude calculations for new physics scenarios.
Findings
e- e- colliders have advantages over e+ e- colliders in searching for fermiophobic Higgs bosons.
The extended GRACE system effectively models new physics processes in collider experiments.
The study highlights the complementary roles of different collider types in new physics searches.
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 and colliders in the model. The results show some advantages of colliders over colliders for new physics search and thus its complementary role.
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