Bergner, Georg and Piemonte, Stefano (2018) Running coupling from gluon and ghost propagators in the Landau gauge: Yang-Mills theories with adjoint fermions. PHYSICAL REVIEW D, 97 (7): 074510. ISSN 2470-0010, 2470-0029
Full text not available from this repository. (Request a copy)Abstract
Non-Abelian gauge theories with fermions transforming in the adjoint representation of the gauge group (AdjQCD) are a fundamental ingredient of many models that describe the physics beyond the Standard Model. Two relevant examples are N = 1 supersymmetric Yang-Mills (SYM) theory and minimal walking technicolor, which are gauge theories coupled to one adjoint Majorana and two adjoint Dirac fermions, respectively. While confinement is a property of N = 1 SYM, minimal walking technicolor is expected to be infrared conformal. We study the propagators of ghost and gluon fields in the Landau gauge to compute the running coupling in the MiniMom scheme. We analyze several different ensembles of lattice Monte Carlo simulations for the SU(2) adjoint QCD with N-f = 1/2, 1, 3/2, and 2 Dirac fermions. We show how the running of the coupling changes as the number of interacting fermions is increased towards the conformal window.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BEHAVIOR; MASS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 20 Mar 2020 07:25 |
| Last Modified: | 20 Mar 2020 07:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14716 |
Actions (login required)
 |
View Item |
