Hadron spectroscopy at STCF

TL;DR

The paper discusses how the proposed Super tau-Charm Facility (STCF) can significantly advance hadron spectroscopy by discovering new resonances and precisely measuring known hadron properties, thereby deepening understanding of nonperturbative QCD.

Contribution

It highlights the potential of STCF to enhance hadron spectroscopy research through high-precision measurements and discovery of new hadron states.

Findings

STCF can discover new hadron resonances.

STCF can measure hadron properties with unprecedented precision.

The study emphasizes the importance of STCF in understanding color confinement.

Abstract

Despite that quantum chromodynamics, the theory of strong interaction, has colorful quarks and gluons as its basic degrees of freedom, all fundamental particles participating the strong interaction that can be directly detected in experiments are colorless or color-singlet hadrons. This phenomenon is called color confinement. Because of that, the study of hadron spectroscopy is essential in improving our understanding of the nonperturbative regime of QCD and to reveal the mechanism of color confinement. The high-luminosity electron-positron collision machine under discussion, Super tau-Charm Facility (STCF), can play an essential role in hadron spectroscopy by discovering new hadron resonances and measuring properties of known hadrons with an unprecedented precision. In the following, we will discuss briefly the topics on hadron spectroscopy that will be investigated at STCF.