Evidence that center vortices drive dynamical mass generation in QCD

Autor:	Kamleh, Waseem, Leinweber, Derek B., Virgili, Adam
Rok vydání:	2023
Předmět:	High Energy Physics - Theory Nuclear Theory (nucl-th) High Energy Physics - Phenomenology High Energy Physics - Lattice High Energy Physics - Phenomenology (hep-ph) Nuclear Theory High Energy Physics - Theory (hep-th) High Energy Physics - Lattice (hep-lat) FOS: Physical sciences
DOI:	10.48550/arxiv.2305.18690
Popis:	The first calculation of the response of the momentum space quark propagator to center vortices in the ground state fields of QCD is presented. Center vortices are identified on 2+1-flavour dynamical gauge fields with $m_\pi \simeq 156$ MeV to obtain the vortex-removed and vortex-only quark propagator. Dynamical mass generation is found to vanish upon vortex removal, while the vortex-only field is able to generate dynamical mass. These new signatures significantly strengthen evidence that center vortices underpin both dynamical chiral symmetry breaking and quark confinement. Comment: 6 pages, 2 figures
Databáze:	OpenAIRE
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