Colour and baryon number fluctuation of preconfinement system in production process and T_cc structure
Abstract
We suggest to study the production mechanism and some details of the production properties to probe the structure of the DDpi resonance T_cc^+ recently observed by the LHCb Collaboration. If the resonance is produced as a four-quark state, one can find the corresponding finger prints via measurements on some production properties that are the same as those of Xi_cc. The reason is that a special colour connection on the interface between the perturbative and non perturbative QCD is required for these doubly-charm hadron production. On the other hand, if T_cc^+ is produced as a hadron molecule, the measurement on the momentum correlation of DD^* can be a smoking gun to make the judgement. The present data favour a compact four-quark state production via the cc diquark fragmentation.
Keywords
Cite
@article{arxiv.2109.05678,
title = {Colour and baryon number fluctuation of preconfinement system in production process and T_cc structure},
author = {Yi Jin and Shi-Yuan Li and Yan-Rui Liu and Qin Qin and Zong-Guo Si and Fu-Sheng Yu},
journal= {arXiv preprint arXiv:2109.05678},
year = {2021}
}
Comments
20 papges, 6 figs