Speaker
Description
The COMPASS collaboration at CERN performs studies of the nucleons structure
measuring the muon SIDIS cross sections differences (asymmetries) in numbers of
the hadrons (h+ and h-) productions by muons from a target with two cells
polarized oppositely to each other. These type of asymmetries, related to
structure functions of the nucleons, is evaluated via the Double Ratios (DRs)
of numbers of the hadrons in which the set-ups' luminosity and acceptance are
cancelled. Modifications of the DRs (MDRs), suggested in this work, are aimed
at minimization of possible false contributions to the muon SIDIS azimuthal
asymmetries in hadron productions. The nucleons structure functions measured
with the MDRs of numbers of the hadrons also commented on.
