Multiparton interactions in ep scattering at HERA
H. Jung (DESY Hamburg, Univ. Antwerp) (for the H1, ZEUS, collaboration)
TL;DR
This paper investigates jet production in ep scattering at HERA, highlighting the importance of multi-parton interactions and alternative higher order radiation models to accurately describe the underlying event structure.
Contribution
It demonstrates that multi-parton interactions are essential in modeling jet production in the photoproduction region at HERA, comparing collinear factorization and CCFM approaches.
Findings
Multi-parton interactions improve data description.
Both collinear factorization with MPI and CCFM can fit measurements.
Highlights the significance of underlying event modeling in ep scattering.
Abstract
Measurements of jet production in the photoproduction region at HERA are presented, which are sensitive to the underlying event structure. It is argued that in the photoproduction region a significant amount of multi-parton interactions in the collinear factorisation ansatz are needed to describe the measurement. A different approach for higher order parton radiation (CCFM parton showers) can also describe the measurement.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Superconducting Materials and Applications