Custodial symmetry violation in the Georgi-Machacek model

• Published in: arXiv.org
• Main Authors: Keeshan, Ben, Logan, Heather E, Pilkington, Terry
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 13.07.2020
• Subjects: Bosons; Couplings; Higgs bosons; Large Hadron Collider; Physics - High Energy Physics - Phenomenology; Scalars; Symmetry

We study the effects of custodial symmetry violation in the Georgi-Machacek (GM) model. The GM model adds isospin-triplet scalars to the Standard Model in a way that preserves custodial symmetry at tree level; however, this custodial symmetry has long been known to be violated at the one-loop level...