Observation of Structures in the J/ψ Mass Spectrum at CMS

4th International Hadron Physics Conference

Yetkin, E. Asli^1

Physics Department, Mimar Sinan Fine Arts University, Turkey^1

关键词: Charmonium;    Charmonium spectroscopy;    Exotic state;    Mass spectra;    Quark model;    Quark-gluon;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/562/1/012013/pdf
DOI  :  10.1088/1742-6596/562/1/012013

来源: IOP

【 摘 要 】

Observation of charmonium like new states since 2003, which do not fit into conventional quark model renewed the interest in exotic states. Many models like meson molecule, tetraquark, and quark-gluon hybrid are proposed to explain the observed charmonium spectroscopy. The observation of Y(3940)[1] near the J/ψω threshold motivated the searches for similar structures near J/ψφ threshold. In this proceeding, we summarize the recent developments on the observation of a peaking structure in the J/ψφ mass spectrum from B±J/ψφK±decay.