arXiv journal 2022.0210

Longitudinal structure function FL at low Q2 and low x with model for higher twist: an update
https://arxiv.org/pdf/2202.04223.pdf

abstract: A reanalysis of the model for the longitudinal structure function FL(x, Q2) at low x and low Q2 was undertaken, in view of the advent of the EIC. The model is based on the photon-gluon fusion mechanism suitably extrapolated to the region of low Q2. It includes the kinematic constraint FL ∼ Q4 as Q2 → 0 and higher twist contribution which vanishes as Q2 → ∞. Revised model was critically updated and compared to the presently available data.

Phenomenology of the hadronic structure at small-x
https://arxiv.org/pdf/2202.04207.pdf

abstract: We present exploratory studies of the proton structure via two distinct kinds of gluon densities: the transverse-momentum dependent functions, whose evolution is determined by the CSS equation, and the unintegrated gluon distribution, whose definition is given in the BFKL formalism. Our analyses are relevant for the exploration of the intrinsic motion of gluons inside protons in the small-x regime, and for a comprehensive tomographic imaging of the proton at new-generation colliding facilities.

标签：Q2,2022.0210,journal,arXiv,gluon,low,pdf,model,structure
来源： https://blog.csdn.net/Machine_yan/article/details/122861041