FROM STRING BREAKING TO QUARKONIUM SPECTRUM

Catillo, Marco; Marinkovic, Marina Krstic; Bicudo, Pedro und Cardoso, Nuno (2021): FROM STRING BREAKING TO QUARKONIUM SPECTRUM. In: Acta Physica Polonica B Proceedings Supplement, Bd. 14, Nr. 1: S. 93-99

Abstract

We present a preliminary computation of potentials between two static quarks in n(f )= 2 QCD with O(a) improved Wilson fermions based on Wilson loops. We explore different smearing choices (HYP, HYP2 and APE) and their effect on the signal-to-noise ratio in the computed static potentials. This is a part of a larger effort concerning, at first, a precise computation of the QCD string breaking parameters and their subsequent utilization for the recent approach based on the Born-Oppenheimer approximation [P. Bicudo et al., Phys. Rev. D 101, 034503 (2020)] to study quarkonium resonances and bound states.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 1899-2358
• Sprache: Englisch