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

被引：12

作者：

DeGrand, Thomas ^{[1
]}

Golterman, Maarten ^{[2
]}

Jay, William I. ^{[1
]}

Neil, Ethan T. ^{[1
,3
]}

Shamir, Yigal ^{[4
]}

Svetitsky, Benjamin ^{[4
]}

机构：

[1] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[2] San Francisco State Univ, Dept Phys & Astron, San Francisco, CA 94132 USA

[3] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA

[4] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel

来源：

PHYSICAL REVIEW D | 2016年 / 94卷 / 05期

基金：

以色列科学基金会; 美国国家科学基金会;

关键词：

PERTURBATION-THEORY; WILSON FERMIONS; VECTOR MESONS; MASS; OPERATOR; VACUUM; QUARKS; QCD;

D O I：

10.1103/PhysRevD.94.054501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：19

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