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arXiv · 2104.03887

Inclusive production of fully-charmed ${\bm 1}^{\bm{+}\bm{-}}$ tetraquark at $\bm B$ factory

Yingsheng Huang·Feng Feng·Yu Jia·Wen-Long Sang·De-Shan Yang·Jia-Yue Zhang
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Abstract

Inspired by the recent discovery of the $X(6900)$ meson at {\tt LHCb} experiment, we investigate the inclusive production rate of the $C$-odd fully-charmed tetraquarks associated with light hadrons at the $B$ factory within the nonrelativistic QCD (NRQCD) factorization framework. The short-distance coefficient is computed at lowest order in velocity and $\alpha_s$. Employing the diquark-antidiquark model to roughly estimate the long-distance NRQCD matrix elements, we predict the rate for inclusive production of the $1^{+-}$ $T_{4c}$ state and discuss the observation prospects at {\tt Belle 2} experiment.

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Yingsheng Huang, Feng Feng, Yu Jia, Wen-Long Sang, De-Shan Yang, Jia-Yue Zhang. 2021-04-08. Inclusive production of fully-charmed ${\bm 1}^{\bm{+}\bm{-}}$ tetraquark at $\bm B$ factory. https://doi.org/10.1088/1674-1137/ac0b38

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