QCD Sum Rule Analysis of Heavy Quarkonium Hybrids

2013/10/01 by Wei Chen, R. T. Kleiv, Chen, Wei +13
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1310.0431

openalex publication_date 2013/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We have studied the charmonium and bottomonium hybrid states with various J^PC quantum numbers in QCD sum rules. At leading order in α_s, the two-point correlation functions have been calculated up to dimension six including the tri-gluon condensate and four-quark condensate. After performing the QCD sum rule analysis, we have confirmed that the dimension six condensates can stabilize the hybrid sum rules and allow the reliable mass predictions. We have updated the mass spectra of the charmonium and bottomonium hybrid states and identified that the negative-parity states with J^PC=(0, 1, 2)^-+, 1^-- form the lightest hybrid supermultiplet while the positive-parity states with J^PC=(0, 1)^+-, (0, 1, 2)⁺⁺ belong to a heavier hybrid supermultiplet.

Related

• Mass spectra of heavy hybrid quarkonia and bgc mesons
• Mass spectrum of the hidden-charm hybrid states via the QCD sum rules
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• QCD Sum Rule Studies of Heavy Quarkonium-like States