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Multi-Higgs boson production via photon fusion at muon colliders in the Triplet Higgs Model
Samarakoon, Bathiya
Samarakoon, Bathiya
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2025-05
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Dissertation
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Electronic dissertation
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In this dissertation, I present predictions for the scattering cross sections of Higgs boson pair and triple production via photon fusion at future muon colliders within the framework of the Higgs Triplet Model, a beyond-the-Standard Model theory that generates neutrino masses. High-energy muon beams can emit collinear photons, leading to the production of multi-Higgs final states through loop-induced processes. Thus, I focus on the processes $μ^+μ− → γγ → h^0h^0,A^0A^0,$ and $μ^+μ− → γγ → h^0h^0h^0$ via photon fusion, utilizing the Effective Photon Approximation for cross-section predictions. Our analysis includes contributions from singly and doubly charged Higgs bosons and their couplings to CP-even scalars. I have established my own parameter scanning method, as taking the masses of the scalars as inputs is challenging due to model consistency constraints. I compare total cross sections and kinematic distributions with Standard Model predictions, utilizing automated one-loop calculators for numerical amplitude evaluations and Monte Carlo phase-space integrators for collider simulations at center-of-mass energies ranging from 2 TeV to 10 TeV.
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Thesis (Ph.D.)-- Wichita State University, College of Liberal Arts and Sciences, Dept. of Mathematics, Statistics, and Physics
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Wichita State University
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© Copyright 2025 by Bathiya Samarakoon
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