The new states $X(1910)$ and $X(2300)$ and higher light excited $J^{PC}=1^{+-}$ mesons

Abstract

The BESIII Collaboration recently reported the observation of two new resonances, $X(1910)$ and $X(2300)$, which have sparked our interest in studying the light hadron family with $J^{PC}=1^{+-}$ . In this work, we investigate the mass spectra and OZI-allowed two-body strong decays of $b_1$, $h_1$, and $h_1^{\prime }$ using the MGI model and QPC model with newly fitted parameters. We also explore the possibility of identifying $X(1910)$ and $X(2300)$ as $h_1$ or $h_1^{\prime }$ states. Our numerical results suggest that $X(1910)$ could be a promising candidate for the $h_1^{\prime }(2^1{P}_1)$ state with quark content $s\bar{s}$, while the structure of $X(2300)$ remains uncertain.

arXiv comment16 pages,5 figures, version published in PRD

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Cited by in corpus (2)

• Newly observed $\kappa$(2600) and the highly excited states of the $K_0^{\ast }$ family
• Strangeonium spectrum with the screening effects and interpretation of $h_1(1911)$ and $X(2300)$ observed by BESIII