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Bergner, Georg ; Piemonte, Stefano

Running coupling from gluon and ghost propagators in the Landau gauge: Yang-Mills theories with adjoint fermions

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.

Date of publication of this fulltext: 27 Apr 2018 08:08
Article
DOI to cite this document: 10.5283/epub.37226


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 ...

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.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitlePhysical Review D
Publisher:AMER PHYSICAL SOC
Open Access Type:SCOAP3
Place of Publication:COLLEGE PK
Volume:97
Number of Issue or Book Chapter:7
Page Range:074510
Date20 April 2018
Additional Information (public)SCOAP3
InstitutionsPhysics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali
Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali
Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Dirk Pleiter
Identification Number
ValueType
10.1103/PhysRevD.97.074510DOI
KeywordsBEHAVIOR; MASS;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgYes
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-372262
Item ID37226

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