Polarized Dipole Scattering Amplitudes meet the Valence Quark Model
arxiv(2024)
Abstract
The recently revised small-x helicity evolution, resumming the
double-logarithmic factor, α_sln^2(1/x), allows for the study of
helicity distributions of quarks and gluons at small Bjorken x, corresponding
to high center-of-mass energy. In this work, we calculate the moderate-x
initial conditions in the regime, α_s ln^2(1/x)∼ 1, for the
small-x helicity evolution using a light-front valence quark model of the
proton, which provides additional physical information about the target. The
perturbative emission and absorption of a gluon by the valence quarks are also
included. The results, given in Eqs. (35), provide a new set of initial
conditions with a significantly reduced number of free parameters than
conventional models. Consequently, the predictive power of small-x helicity
evolution is expected to improve once the initial conditions from this work are
incorporated.
MoreTranslated text
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined