5 research outputs found
Polarization phenomena in open charm photoproduction processes
We analyze polarization effects in associative photoproduction of
pseudoscalar () charmed mesons in exclusive processes , , . Circularly polarized photons
induce nonzero polarization of the -hyperon with - and -components
(in the reaction plane) and non vanishing asymmetries and for polarized nucleon target. These polarization observables can be
predicted in model-independent way for exclusive -production processes
in collinear kinematics. The T-even -polarization and asymmetries for
non-collinear kinematics can be calculated in framework of an effective
Lagrangian approach. The depolarization coefficients , characterizing
the dependence of the -polarization on the nucleon polarization are also
calculated.Comment: 36 pages 13 figure
D* and D Meson Production in Muon Nucleon Interactions at 160 GeV/c
Adolph C, Alekseev MG, Alexakhin VY, et al. D* and D Meson Production in Muon Nucleon Interactions at 160 GeV/c. Eur.Phys.J. C. 2012;72(12): 2253.The production of D* and D mesons in inelastic scattering of 160 GeV/c muonsoff a ^6LiD target has been investigated with the COMPASS spectrometer at CERNfor 0.003 (GeV/c)^2 0.6