The structure of the strange sea of the proton
C. Avila, L. Salazar-Garcia, J.C. Sanabria, J. Magnin

TL;DR
This paper models the strange quark and antiquark distributions in the proton using a Meson Cloud Model, fitting parameters to experimental data, and demonstrating it as a viable alternative to traditional parameterizations in deep inelastic scattering analyses.
Contribution
It introduces a Meson Cloud Model with both effective and perturbative degrees of freedom to describe the proton's strange sea, including $s-ar{s}$ asymmetry, and fits parameters to experimental data.
Findings
Model accurately describes the strange sea of the proton.
Provides a phenomenologically motivated alternative to standard parameterizations.
Supports the inclusion of $s-ar{s}$ asymmetry in proton structure modeling.
Abstract
In this work we study the strange sea of the proton using a version of the Meson Cloud Model containing both, efective and perturbative degrees of freedom. We construct the and parton distributions functions at the initial energy scale, , where QCD evolution starts. The initial and pdfs depend on a number of parameters which we fix by comparison to parameterizations of the strange sea of the nucleon obtained in a recent global fit to experimental data, allowing for a asymmetry. We show that the model describes well the strange sea of the proton and argue that it can be a phenomenologically motivated alternative to the usual input parameterizations used in fits to experimental DIS data.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research · Particle physics theoretical and experimental studies
