Radiative contribution to the effective potential in composite Higgs models from lattice gauge theory

Radiative contribution to the effective potential in composite Higgs models from lattice gauge theory

We develop methods to calculate the electroweak gauge boson contribution to the effective Higgs potential in the context of composite Higgs models, using lattice gauge theory. The calculation is analogous to that of the electromagnetic mass splitting of the pion multiplet in QCD. We discuss technica...

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Veröffentlicht in:arXiv.org 2016-08
Hauptverfasser: DeGrand, T A, Golterman, M, Jay, W I, Neil, E T, Shamir, Y, Svetitsky, B
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Sprache:eng
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Dependence
Fermions
Flavor (particle physics)
Gauge theory
Ice
Mathematical models
Momentum
Physics - High Energy Physics - Lattice
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Golterman, M
Jay, W I
Neil, E T
Shamir, Y
Svetitsky, B
description We develop methods to calculate the electroweak gauge boson contribution to the effective Higgs potential in the context of composite Higgs models, using lattice gauge theory. The calculation is analogous to that of the electromagnetic mass splitting of the pion multiplet in QCD. We discuss technical details of carrying out this calculation, including modeling of the momentum and fermion-mass dependence of the underlying current-current correlation function; direct integration of the correlation function over momentum; and fits based on the minimal-hadron approximation. We show results of a numerical study using valence overlap fermions, carried out in an SU(4) gauge theory with two flavors of Dirac fermions in the two-index antisymmetric representation.
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subjects Dependence
Fermions
Flavor (particle physics)
Gauge theory
Ice
Mathematical models
Momentum
Physics - High Energy Physics - Lattice
title Radiative contribution to the effective potential in composite Higgs models from lattice gauge theory
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