Hong-Fei Zhang

collaborators

3 papers

hep-ph2025

The next-to-next-to-leading-order QCD corrections to $e^{+} e^{-} \to I^\cdot_{c} / I ¨ _{c J} + I^^{3}$ at B factories

Cong Li, Wen-Long Sang, Hong-Fei Zhang

We investigate the processes $e^{+} e^{-} \to I^\cdot_{c} + I^^{3}$ and $e^{+} e^{-} \to I ¨ _{c J} + I^^{3}$ at B factories within the NRQCD factorization framework, computing the corresponding helicity amplitudes…

hep-ph2025

Perturbative QCD Evidence for Spin-2 Particles in the Di- $J / I ¨ $ Resonances

Hong-Fei Zhang, Yan-Qing Ma, Wen-Long Sang

We extend the nonrelativistic QCD framework to explore the nature of the newly discovered di- $J / I ¨ $ resonances. Assuming them as either molecule-like states or tetraquarks, we calc…

hep-ph2024

Producing Fully-Charmed Tetraquarks via Charm Quark Fragmentation in Colliders

Xiao-Wei Bai, Feng Feng, Chang-Man Gan +3

Within the framework of nonrelativistic QCD (NRQCD), we calculate the fragmentation function for a charm quark into an $S$ -wave fully-charmed tetraquark, denoted as $T_{4 c}$ . The c…

The next-to-next-to-leading-order QCD corrections to e+e−→I^⋅c​/I¨cJ​+I^3 at B factories

Perturbative QCD Evidence for Spin-2 Particles in the Di-J/I¨ Resonances

Producing Fully-Charmed Tetraquarks via Charm Quark Fragmentation in Colliders

The next-to-next-to-leading-order QCD corrections to $e^{+} e^{-} \to I^\cdot_{c} / I ¨ _{c J} + I^^{3}$ at B factories

Perturbative QCD Evidence for Spin-2 Particles in the Di- $J / I ¨ $ Resonances