Azimuthal asymmetry in SIDIS off nuclei as probe for $\hat{q}$

Abstract

The energy loss parameter $\hat{q}$ is one of the fundamental transport parameters of hadronic matter. Using the twist-4 collinear approach, we show that the $\cos \varphi$ azimuthal asymmetry in unpolarized semi-inclusive deeply inelastic scattering (SIDIS) off a large nucleus at intermediate transverse momentum is a sensitive observable for its determination. The effect is due to the suppression of the azimuthal asymmetry by final-state multiple scattering.

9 pages

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Cited by in corpus (3)

• Azimuthal asymmetries in semi-inclusive DIS with polarized beam and/or target and their nuclear dependences
• On the process dependent nuclear $k_{\perp }$ broadening effect
• Nuclear dependences of azimuthal asymmetries in the Drell-Yan process