Multiplicities of charged kaons from deep-inelastic muon scattering off an isoscalar target

Understand

Precise measurements of charged-kaon multiplicities in deep inelastic scattering were performed.

• The results are presented in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron.
• The data were obtained by the COMPASS Collaboration by scattering 160 GeV muons off an isoscalar 6 LiD target.
• They cover the kinematic domain 1 (GeV/c)2 < Q2 < 60 (GeV/c)^2 in the photon virtuality, 0.004 < x < 0.4, 0.1 < y < 0.7, 0.20 < z < 0.85, and W > 5 GeV/c^2 in the invariant mass of the hadronic system.