%0 Generic %1 chen2016exotic %A Chen, Ying %A Chiu, Wei-Feng %A Gong, Ming %A Gui, Long-Cheng %A Liu, Zhaofeng %D 2016 %K hybrid %R 10.1088/1674-1137/40/8/081002 %T Exotic vector charmonium and its leptonic decay width %U http://arxiv.org/abs/1604.03401 %X We propose a novel type of interpolating field operators, which manifests the hybrid-like configuration that the charm quark-antiquark pair recoils against gluonic degrees of freedom. A heavy vector charmonium-like state with a mass of $4.33(2)\,GeV$ is disentangled from the conventional charmonium states in the quenched approximation. This state has affinity for the hybrid-like operators but couples less to the relevant quark bilinear operator. We also try to extract its leptonic decay constant and give a tentative upper limit that it is less than one tenth of that of $J/\psi$, which corresponds to a leptonic decay width about dozens of eV. The connection of this state with $X(4260)$ is also discussed.

@misc{chen2016exotic, abstract = {We propose a novel type of interpolating field operators, which manifests the hybrid-like configuration that the charm quark-antiquark pair recoils against gluonic degrees of freedom. A heavy vector charmonium-like state with a mass of $4.33(2)\,{\rm GeV}$ is disentangled from the conventional charmonium states in the quenched approximation. This state has affinity for the hybrid-like operators but couples less to the relevant quark bilinear operator. We also try to extract its leptonic decay constant and give a tentative upper limit that it is less than one tenth of that of $J/\psi$, which corresponds to a leptonic decay width about dozens of eV. The connection of this state with $X(4260)$ is also discussed.}, added-at = {2020-10-15T18:00:31.000+0200}, author = {Chen, Ying and Chiu, Wei-Feng and Gong, Ming and Gui, Long-Cheng and Liu, Zhaofeng}, biburl = {https://www.bibsonomy.org/bibtex/210bb0923c63a3823556ecf3dc38427ba/cmcneile}, description = {Exotic vector charmonium and its leptonic decay width}, doi = {10.1088/1674-1137/40/8/081002}, interhash = {ec12938dede5e2b9515aa72b7a800a51}, intrahash = {10bb0923c63a3823556ecf3dc38427ba}, keywords = {hybrid}, note = {cite arxiv:1604.03401Comment: 9 pages, 7 figures, to be submitted to Chinese Physics C}, timestamp = {2020-10-15T18:00:31.000+0200}, title = {Exotic vector charmonium and its leptonic decay width}, url = {http://arxiv.org/abs/1604.03401}, year = 2016 }