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arXiv · 1610.03526

Nucleon parton distributions in a light-front quark model

Thomas Gutsche·Valery E. Lyubovitskij·Ivan Schmidt
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Abstract

Continuing with our analysis of parton distributions in the nucleon, we extend our light-front quark model in order to obtain both the helicity independent and helicity dependent parton distributions, analytically matching the results of global fits at the initial scale $μ\sim 1$ GeV, and which also contain the correct Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution. We also calculate the transverse parton, Wigner and Husimi distributions from a unified point of view, using our light-front wave functions and expressing them in terms of the parton distributions $q_v(x)$ and $δq_v(x)$. Our results are very relevant for the current and future program of the COMPASS experiment at SPS (CERN).

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Thomas Gutsche, Valery E. Lyubovitskij, Ivan Schmidt. 2017-02-14. Nucleon parton distributions in a light-front quark model. https://doi.org/10.1140/epjc%2Fs10052-017-4648-5

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