X, Y and Z States
M. Nielsen, R.M. Albuquerque, J.M. Dias, K.P. Khemchandani, A., Martinez Torres, F.S. Navarra, C.M. Zanetti
TL;DR
This paper employs the QCD Sum Rule approach to investigate the structure of recently discovered charmonium-like states across multiple high-energy physics experiments.
Contribution
It introduces a novel application of QCD Sum Rules to analyze the structure of newly observed charmonium states.
Findings
Identifies potential quark configurations of the new states
Provides theoretical support for experimental observations
Suggests possible interpretations of the states' structures
Abstract
Many new states in the charmonium mass region were recently discovered by BaBar, Belle, CLEO-c, CDF, D0, BESIII, LHCb and CMS Collaborations. We use the QCD Sum Rule approach to study the possible structure of some of these states.
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