%0 Journal Article
%A Fieg, Max
%A Kling, Felix
%A Schulz, Holger
%A Sjöstrand, Torbjörn
%T Tuning pythia for forward physics experiments
%J Physical review / D
%V 109
%N 1
%@ 2470-0010
%C Ridge, NY
%I American Physical Society
%M PUBDB-2023-05602
%M DESY-23-133
%M arXiv:2309.08604
%P 016010
%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 modeling 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 PYTHIA (INSPIRE)
%K particle: spectrum (INSPIRE)
%K photon: spectrum (INSPIRE)
%K neutrino: 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)
%K forward production (INSPIRE)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:001174137800010
%R 10.1103/PhysRevD.109.016010
%U https://bib-pubdb1.desy.de/record/594048