Second-order Chapman-Enskog viscous corrections suppress heavy-quark drag, induce nontrivial transverse diffusion, and boost early-time dilepton yields relative to first-order or Grad corrections, with the size of the effect set by the interplay between correction momentum dependence and observable
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SemiCharmTag rejects charm-semileptonic muon background under LHCb dimuon Drell–Yan by secondary-vertex tagging with a hadron track, improving S/B by ~4 at 81% signal efficiency in simulation.
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Observable Dependence of Viscous Corrections in QGP: Heavy Quarks and Dileptons in Chapman--Enskog Theory
Second-order Chapman-Enskog viscous corrections suppress heavy-quark drag, induce nontrivial transverse diffusion, and boost early-time dilepton yields relative to first-order or Grad corrections, with the size of the effect set by the interplay between correction momentum dependence and observable
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SemiCharmTag: a tool for Semileptonic Charm tagging
SemiCharmTag rejects charm-semileptonic muon background under LHCb dimuon Drell–Yan by secondary-vertex tagging with a hadron track, improving S/B by ~4 at 81% signal efficiency in simulation.