Polyakov Loops and Finite-Size Effects of Hadron Masses in Lattice Full Q.C.D
S.Antonelli, M.Bellacci, L.A.Fern\'andez, A.Mu\~noz-Sudupe,, J.J.Ruiz-Lorenzo, R.Sarno, A.Taranc\'on, A.Bartoloni, C.Battista,, N.Cabibbo, S.Cabasino, E.Panizzi, P.S.Paolucci, G.M.Todesco, M.Torelli,, R.Tripiccione, P.Vicini
TL;DR
This paper investigates how Polyakov loops influence finite-size effects in lattice QCD hadron masses, proposing a method to reduce their impact using boundary conditions and alignment techniques.
Contribution
It introduces a new procedure to partially eliminate Polyakov loop contributions in meson propagators, enhancing the analysis of finite-size effects in lattice QCD.
Findings
Polyakov loops cause differences in finite-size effects between quenched and unquenched QCD.
Boundary conditions can be used to align Polyakov loops in a desired direction.
A method to reduce Polyakov loop contributions in meson propagators is proposed.
Abstract
The polarization of Polyakov type loops is responsible for the difference between quenched and unquenched finite size effects on the QCD mass spectrum. With a numerical simulation, using different sea quarks boundary conditions, we show that we can align the spatial Polyakov loops in a predefined direction. Starting from these results, we propose a procedure to partially remove the Polyakov type contributions in the meson propagators.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research