SAIFR:4053

A new paradigm for QCD in the infrared?

(2024). A new paradigm for QCD in the infrared?. ICTP South American Institute for Fundamental Research. https://scivideos.org/ictp-saifr/4053

A new paradigm for QCD in the infrared?. ICTP South American Institute for Fundamental Research, Mar. 06, 2024, https://scivideos.org/ictp-saifr/4053 

          @misc{ scivideos_SAIFR:4053,
            doi = {},
            url = {https://scivideos.org/ictp-saifr/4053},
            author = {},
            keywords = {ICTP-SAIFR, IFT, UNESP},
            language = {en},
            title = {A new paradigm for QCD in the infrared?},
            publisher = { ICTP South American Institute for Fundamental Research},
            year = {2024},
            month = {mar},
            note = {SAIFR:4053 see, \url{https://scivideos.org/ictp-saifr/4053}}
          }
URKO REINOSA
Talk numberSAIFR:4053
Source RepositoryICTP – SAIFR
Collection
Talk Type Conference
Subject

Abstract

Addressing Quantum Chromodynamics (QCD) in the infrared is a notoriously difficult task due to the size of the interaction strength. This has instigated the development of non-perturbative approaches based either on the lattice discretization and the statistical evaluation of the QCD functional integral or on its continuum reformulation in terms of infinite hierarchies of equations. Lattice QCD provides an almost exact description of QCD that can however not be used in all situations. As for continuum approaches, even though they can be extended to these situations in principle, they very often rely on uncontrolled truncations that prevent a quantitative estimate of the error.Over the last decades, the lattice simulation of Euclidean QCD correlators in the Landau gauge has revealed unexpected features that shed some light on how the various QCD fields are coupled in the infrared. This allows one to contemplate a "third way" into infrared QCD. In this talk, I review a ten-year effort to put these ideas into solid ground, using the Curci-Ferrari action, a one-parameter model for Landau gauge-fixed QCD in the infrared. In particular, I will discuss how this approach allows one to retrieve the lattice results for the QCD correlation functions and to investigate features of the phase structure that relate to the most fundamental properties of QCD such as confinement or chiral symmetry breaking.