Production of doubly charged scalars from the decay of a heavy SM-like Higgs boson in the Higgs Triplet Model

TL;DR

This paper explores how a heavy SM-like Higgs boson in the Higgs Triplet Model can decay into doubly charged Higgs pairs, potentially enhancing their production rates at colliders like the Tevatron and LHC.

Contribution

It introduces a novel production mechanism for doubly charged Higgs bosons via heavy Higgs decay, expanding the search strategies in collider experiments.

Findings

Potentially large cross section for H^{++}H^{--} production from heavy Higgs decay.

Enhanced detection prospects for doubly charged Higgs at colliders.

Implications for ongoing experimental searches at Tevatron and LHC.

Abstract

The Higgs Triplet Model (HTM) of neutrino mass generation predicts the existence of doubly charged Higgs bosons (H^{\pm\pm}). In the HTM a scalar eigenstate (H_2) is dominantly composed of the scalar field from the isospin doublet, and could be significantly heavier than H^{\pm\pm}. Such a scenario would allow the possibility of a large branching ratio for the decay H_2-> H^{++}H^{--}. From the production mechanism of gluon-gluon fusion, gg-> H_2, the above decay mode would give rise to pair production of doubly charged Higgs bosons (H^{++}H^{--}) with a cross section which could be significantly larger than the cross sections for the standard production mechanisms qqbar -> \gamma,Z-> H^{++}H^{--} and q'qbar -> W -> H^{\pm\pm}H^{\mp}. We discuss the phenomenological consequences for the ongoing searches for H^{\pm\pm} at the Tevatron and at the LHC.