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hep-ph2025
Revisiting the line shape of $e^+e^-\to \jpsi η$ cross section
Chang-Man Gan, Jun-Kang He, Wen-Long Sang +1
We calculate the cross sections for the processes $e^+e^-\to \jpsi η$ and $e^+e^-\to \jpsi η^\prime$ at various CM energies . We first predict these cross sections by com…
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 -wave fully-charmed tetraquark, denoted as . The c…