A POWHEG generator for deep inelastic scattering
Autor: | Banfi, Andrea, Ravasio, Silvia Ferrario, Jäger, Barbara, Karlberg, Alexander, Reichenbach, Felix, Zanderighi, Giulia |
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Rok vydání: | 2023 |
Předmět: | |
Zdroj: | JHEP02(2024)001 |
Druh dokumentu: | Working Paper |
DOI: | 10.1007/JHEP02(2024)023 |
Popis: | We present a new event generator for the simulation of both neutral- and charged-current deep inelastic scattering (DIS) at next-to-leading order in QCD matched to parton showers using the POWHEG method. Our implementation builds on the existing POWHEG BOX framework originally designed for hadron-hadron collisions, supplemented by considerable extensions to account for the genuinely different kinematics inherent to lepton-hadron collisions. In particular, we present new momentum mappings that conserve the special kinematics found in DIS, which we use to modify the POWHEG BOX implementation of the Frixione-Kunszt-Signer subtraction mechanism. We compare our predictions to fixed-order and resummed predictions, as well as to data from the HERA ep collider. Finally we study a few representative distributions for the upcoming Electron Ion Collider. Comment: 54 pages, 25 figures, code obtainable from svn://powhegbox.mib.infn.it/trunk/User-Processes-RES/DIS |
Databáze: | arXiv |
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