Numerical indication that center vortices drive dynamical mass generation in QCD

Autor:	Kamleh, Waseem, Leinweber, Derek B., Virgili, Adam
Rok vydání:	2023
Předmět:	High Energy Physics - Lattice High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory
Zdroj:	Phys.Rev.D 110 (2024) 5, L051502
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.110.L051502
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 strengthen the lattice QCD evidence indicating that center vortices underpin both dynamical chiral symmetry breaking and quark confinement. Comment: 6 pages, 2 figures. Updated to include minor changes for the published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2305.18690 Zobrazit plný text záznamu View this record from Arxiv