Analytical cross sections and Sivers asymmetry predictions are presented for double quarkonium production via quark-antiquark annihilation at fixed-target experiments, showing a 10-15% asymmetry at COMPASS and small negative asymmetries at LHC fixed-target energies.
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Double quarkonium production in hadronic collisions at fixed-target experiments
Analytical cross sections and Sivers asymmetry predictions are presented for double quarkonium production via quark-antiquark annihilation at fixed-target experiments, showing a 10-15% asymmetry at COMPASS and small negative asymmetries at LHC fixed-target energies.