Numerical results for gauge theories near the conformal window. (July 2015)

• Record Type: Journal Article
• Authors: Lucini, Biagio
• Is Part Of: Journal of physics. Number 631(2015)
• Publication Date: 2015-07
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/631/1/012065
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: A novel strong interaction beyond the standard model could provide a dynamical explanation of electroweak symmetry breaking. Experimental results strongly constrain properties of models that realise this mechanism. Whether these constraints are obeyed by any strongly interacting quantum field theory is a non-perturbative problem that needs to be addressed by first-principle calculations. Monte Carlo simulations of lattice regularised gauge theories is a powerful tool that enables us to address this question. Recently various lattice investigations have appeared that have studied candidate models of strongly interacting dynamics beyond the standard model. After a brief review of the main methods and of some recent results, we focus on the analysis of SU(2) gauge theory with one adjoint Dirac fermion flavour, which is shown to have a near-conformal behaviour with an anomalous dimension of order one. The implications of our findings are also discussed.