%0 Electronic Article
%A Fieg, Max
%A Kling, Felix
%A Schulz, Holger
%A Sjöstrand, Torbjörn
%T Tuning Pythia for Forward Physics Experiments
%N DESY-23-133
%M PUBDB-2023-05595
%M DESY-23-133
%M arXiv:2309.08604
%D 2023
%Z We will first submit to arXiv, and later also to a journal.
%X Event generators like Pythia play an important role in physics studies at the Large Hadron Collider (LHC). While they make accurate predictions in the central region, i.e. at pseudorapidities η < 5, a disagreement between Pythia and measurements in the forward region, η > 7, has been observed. We introduce a dedicated forward physics tune for the Pythia event generator to be used for forward physics studies at the LHC, which uses a more flexible modelling of beam remnant hadronization and is tuned to available particle spectra measured by LHCf. Furthermore, we provide an uncertainty estimate on the new tune in a data-driven way which can be used as a means of flux uncertainty for future forward physics studies. We demonstrate an application of our tune by showing the updated neutrino and dark photon spectra at the FASER experiment.
%K particle, spectrum (INSPIRE)
%K photon, spectrum (INSPIRE)
%K CERN LHC Coll (INSPIRE)
%K Monte Carlo (INSPIRE)
%K LHC-F (INSPIRE)
%K flux (INSPIRE)
%K hadronization (INSPIRE)
%K rapidity (INSPIRE)
%K central region (INSPIRE)
%F PUB:(DE-HGF)25
%9 Preprint
%R 10.3204/PUBDB-2023-05595
%U https://bib-pubdb1.desy.de/record/593930