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arXiv · 2402.17556

T-odd gluon distribution functions in a spectator model

Alessandro Bacchetta·Francesco Giovanni Celiberto·Marco Radici
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Abstract

We present a model calculation of T-odd transverse-momentum-dependent distributions of gluons in the nucleon. The model is based on the assumption that a nucleon can emit a gluon, and what remains after the emission is treated as a single spectator particle. This spectator particle is considered to be on-shell, but its mass is allowed to take a continuous range of values, described by a spectral function. The final-state interaction that is necessary to generate T-odd functions is modeled as the exchange of a single gluon between the spectator and the outgoing parton.

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Alessandro Bacchetta, Francesco Giovanni Celiberto, Marco Radici. 2024-02-27. T-odd gluon distribution functions in a spectator model. https://arxiv.org/abs/2402.17556

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