QCD Sum Rule Analysis of Heavy Quarkonium Hybrids
Abstract
We have studied the charmonium and bottomonium hybrid states with various quantum numbers in QCD sum rules. At leading order in , 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 form the lightest hybrid supermultiplet while the positive-parity states with belong to a heavier hybrid supermultiplet.
Keywords
Cite
@article{arxiv.1310.0431,
title = {QCD Sum Rule Analysis of Heavy Quarkonium Hybrids},
author = {Wei Chen and R. T. Kleiv and T. G. Steele and B. Bulthuis and D. Harnett and J. Ho and T. Richards and Shi-Lin Zhu},
journal= {arXiv preprint arXiv:1310.0431},
year = {2013}
}
Comments
7 pages, 1 figures. Some minor edits have been made. Presentation at the DPF 2013 Meeting of the American Physical Society Division of Particles and Fields, Santa Cruz, California, August 13-17, 2013