A model for $F_L$ structure function at low values of $Q^2$ and $x$ - revisited

Badelek, Barbara; Stasto, Anna

doi:10.21468/SciPostPhysProc.8.082

A model for $$F_L$$ structure function at low values of $Q^2$ and $$x$$ - revisited

Journal Article · Wed Jul 13 00:00:00 EDT 2022 · SciPost Physics Proceedings

DOI:https://doi.org/10.21468/SciPostPhysProc.8.082· OSTI ID:1875937

Badelek, Barbara ^[1]; Stasto, Anna ^[2]

University of Warsaw
Pennsylvania State University

A reanalysis of the model for the longitudinal structure function F_L (x,Q^2) $F_{L} (x, Q^{2})$ at low x $x$ and low Q^2 $Q^{2}$ was undertaken, in view of the advent of the EIC. The model includes the kinematic constraint F_L\sim Q^4 $F_{L} \sim Q^{4}$ as Q^2\rightarrow $Q^{2} \to$ 0. It is based on the photon-gluon fusion mechanism suitably extrapolated to the region of low Q^2 $Q^{2}$ . Revised model was critically updated, extended to the EIC kinematic region, and e.g. contains new parameterisations of the parton distribution functions.

Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0002145

OSTI ID:: 1875937

Journal Information:: SciPost Physics Proceedings, Journal Name: SciPost Physics Proceedings Journal Issue: 8; ISSN 2666-4003

Publisher:: Stichting SciPostCopyright Statement

Country of Publication:: Netherlands

Language:: English

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