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arXiv · 1011.5422

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

Francesca Giordano·Rebecca Lamb
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Abstract

The $\cosϕ_h$ and $\cos2ϕ_h$ 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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Francesca Giordano, Rebecca Lamb. 2010-11-24. Flavor-dependent azimuthal modulations in unpolarized SIDIS cross section at HERMES. https://doi.org/10.1088/1742-6596%2F295%2F1%2F012092

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