Flavor-dependent azimuthal modulations in unpolarized SIDIS cross section at HERMES

Details Flavor-dependent azimuthal modulations in unpolarized SIDIS cross section at HERMES Flavor-dependent azimuthal modulations in unpolarized SIDIS cross section at HERMES

2010-11-24

arxiv.org/abs/1011.5422v1

J.Phys.Conf.Ser.295:012092,2011

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1088/1742-6596/295/1/012092

The $\cos\phi_h$ and $\cos2\phi_h$ azimuthal modulations of the unpolarized hadron Semi-Inclusive Deep Inelastic Scattering cross section are sensitive to the quark intrinsic transverse momentum and transverse spin. These modulations have been measured at HERMES in a fully differential way by means of a 4-dimensional unfolding procedure to correct for instrumental effects. Results have been extracted for hydrogen and deuterium targets and separately for positively and negatively charged pions and kaons, to access flavor-dependent information about the nucleon internal transverse degrees of freedom.

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