Measurement of azimuthal asymmetries of the unpolarized cross section at HERMES

Details Measurement of azimuthal asymmetries of the unpolarized cross section at HERMES Measurement of azimuthal asymmetries of the unpolarized cross section at HERMES

2009-01-16

arxiv.org/abs/0901.2438v1

AIP Conf.Proc.1149:423-426,2009

Physics

High Energy Physics

High Energy Physics - Experiment

Proceedings of Spin 2008 conference, 4 pages, 3 figures

Scientific paper

10.1063/1.3215681

A multi-dimensional (x, y, z, P_{h\perp}) extraction of cos\phi_h and cos2\phi_h azimuthal asymmetries of unpolarized Semi-Inclusive Deep Inelastic Scattering at HERMES is discussed. The use of data taken with hydrogen and deuterium targets and the separation of positive and negative hadrons allow to access flavor-dependent information about quark intrinsic transverse momenta and spin-orbit correlations. This flavor sensitivity allows for a discrimination between theoretical models in the HERMES kinematic regime.

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