Diffractive structure function F_L^D from fits with higher twist
Krzysztof Golec-Biernat, Agnieszka Luszczak
TL;DR
This paper predicts the diffractive longitudinal structure function F_L^D at HERA using DGLAP fits that include twist-4 contributions, which notably alter previous predictions based solely on DGLAP analysis.
Contribution
It introduces the inclusion of twist-4 contributions in DGLAP fits to improve predictions of F_L^D, accounting for longitudinal photon-induced diffractive qqbar production.
Findings
Twist-4 contributions significantly impact F_L^D predictions.
Predictions will be tested at HERA.
Enhanced understanding of diffractive structure functions.
Abstract
We make predictions for the diffractive longitudinal structure function F_L^D to be measured at HERA, based on DGLAP fits of diffractive parton distributions with twist--4 contribution. This contribution describes diffractive qqbar production from longitudinal photons and significantly changes predictions for F_L^D obtained in pure DGLAP analyses.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Computational Physics and Python Applications