Radiative contribution to the effective potential in a composite Higgs model
T. A. DeGrand (1), M. Golterman (2), W. I. Jay (1), E. T. Neil (1,3),, Y. Shamir (4), and B. Svetitsky (4) ((1) U. Colorado, Boulder, (2) San, Francisco State U., (3) RIKEN BNL, (4) Tel Aviv U.)
TL;DR
This paper calculates the gauge boson contribution to the Higgs potential in a composite Higgs model based on an SU(4) gauge theory, providing insights into the radiative effects shaping the Higgs potential.
Contribution
It presents the first computation of gauge boson contributions to the Higgs potential in an SU(4) composite Higgs model using lattice techniques.
Findings
Gauge boson contribution to the Higgs potential quantified.
Methodology using valence overlap fermions on Wilson-clover sea.
Analogous to electromagnetic mass splitting in QCD.
Abstract
The SU(4) gauge theory with two flavors of Dirac fermions in the sextet representation shares features of a candidate for a composite Higgs model. The analogue of the Higgs multiplet of the Standard Model lives in the Goldstone manifold resulting from spontaneous breaking of the global symmetry SU(4) to SO(4). The Higgs potential arises from interaction with the particles of the Standard Model. We have computed the gauge boson contribution to the Higgs potential, using valence overlap fermions on a Wilson-clover sea. The calculation is similar to that of the electromagnetic mass splitting of the pion multiplet in QCD.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Black Holes and Theoretical Physics