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arXiv · 2411.19296

Light quark fragmentation into S-wave fully charmed tetraquark

Xiao-Wei Bai·Yingsheng Huang·Wen-Long Sang
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Abstract

We compute the fragmentation function of a light quark into S-wave fully-charmed tetraquarks ($T_{4c}$) within the nonrelativistic QCD (NRQCD) framework, at leading order in $\alpha_{s}$ and $v$. We present results for light quark fragmentation into $T_{4c}$ and predict its contribution to $T_{4c}$ production at high transverse momentum ($p_{T}$) at the LHC and EIC. We also compare light quark fragmentation with charm quark and gluon fragmentation channels. Our analysis shows that the production cross section for $T_{4c}$ from light quark fragmentation is smaller than that from gluon fragmentation but larger than that from charm quark fragmentation.

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Xiao-Wei Bai, Yingsheng Huang, Wen-Long Sang. 2024-11-28. Light quark fragmentation into S-wave fully charmed tetraquark. https://doi.org/10.1103/physrevd.111.054006

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