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arXiv · 2505.04093

Neutrino-jet correlations in charged-current SIDIS

Weihua Yang·Jing Zhao·Zhe Zhang
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Abstract

Charged-current deep inelastic scattering plays a significant role in determining parton distribution functions with flavour separation.In this work, we present a systematic calculation of the charged-current semi-inclusive deep inelastic scattering (SIDIS) in the $eN$ collinear frame up to twist-3 level at leading order. Semi-inclusive refers to the process in which a jet is detected in addition to the scattered neutrino. We focus on neutrino-jet correlations in our calculation. We first present the differential cross section in terms of structure functions, followed by the differential cross section expressed in term of transverse momentum dependent parton distribution functions. We derive the complete set of azimuthal asymmetries and intrinsic asymmetries. We also introduce an observable $A^C$, defined as the ratio of the difference to the sum of differential cross sections for electron and positron semi-inclusive deep inelastic scattering.We notice that $A^C$ provides a sensitive probe for valence and sea quark distribution functions

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Weihua Yang, Jing Zhao, Zhe Zhang. 2025-07-29. Neutrino-jet correlations in charged-current SIDIS. https://arxiv.org/abs/2505.04093

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