Modeling new XYZ states at JPAC

7th International Conference on Beauty, Charm, and Hyperons in Hadronic Interactions

Pilloni, A.^1

Theory Center, Thomas Jefferson National Accelerator Facility, 12000 Jefferson Avenue, Newport News

VA

23606, United States^1

关键词: Bound molecules;    Exotic state;    Hadron spectroscopy;    High-energy hadrons;    Light nuclei;    Physics analysis;    Production cross section;    Production data;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/770/1/012030/pdf
DOI  :  10.1088/1742-6596/770/1/012030

来源: IOP

【 摘 要 】

The observation of the unexpected XYZP resonances has challenged the usual heavy quarkonium framework. One of the most studied exotic states, the X(3872), happens to be copiously produced in high-energy hadron collisions. We discuss how this large prompt production cross-section, together with the comparison with light nuclei production data, disfavors a loosely-bound molecule interpretation, and calls for a new interpretation for the exotic hadron resonances. We also present the research of the Joint Physics Analysis Center in Hadron Spectroscopy.