DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: pythia8 underlying event tune for RHIC energies

Journal Article · · Physical Review D

We report an underlying event tune for the pythia8 Monte Carlo event generator that is applicable for hadron collisions primarily at $$\sqrt{s}$$ ranges available at the Relativistic Heavy-Ion Collider (RHIC). We compare our new pythia8 tuned predictions to midrapidity inclusive π ± spectra, jet substructure, Drell-Yan production, and underlying event measurements from RHIC and the Tevatron, as well as underlying event data from the Large Hadron Collider. With respect to the default pythia8 Monash Tune, the new “Detroit” tune shows significant improvements in the description of the experimental data. Additionally, we explore the validity of pythia8 predictions for forward rapidity π in $$\sqrt{s}$$ = 200 GeV collisions, where neither tune is able to sufficiently describe the data. We advocate for the new tune to be used for pythia8 studies at current and future RHIC experiments, and discuss future tuning exercises at lower center-of-mass energies, where forward/backward kinematics are essential at the upcoming Electron-Ion Collider.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
SC0012704
OSTI ID:
1836809
Alternate ID(s):
OSTI ID: 1839336; OSTI ID: 1856225
Report Number(s):
BNL-222496-2021-JAAM
Journal Information:
Physical Review D, Journal Name: Physical Review D Journal Issue: 1 Vol. 105; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (27)

Investigation of the energy dependence of the $$p_{\text {T0}}$$ p T0 parameter in the Pythia 8 Monte Carlo event generator journal June 2018
Measurement of the underlying event activity at the LHC with $ \sqrt {s} = 7 $ TeV and comparison with $ \sqrt {s} = 0.9 $ TeV journal September 2011
Measurements of μ μ pairs from open heavy flavor and Drell-Yan in p + p collisions at s = 200     GeV journal April 2019
Production of Mesons and Baryons at High Rapidity and High p T in Proton-Proton Collisions at s = 200     GeV journal June 2007
Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s = 200     GeV journal May 2021
Extraction and validation of a new set of CMS pythia8 tunes from underlying-event measurements journal January 2020
An introduction to PYTHIA 8.2 journal June 2015
Parton distributions from high-precision collider data: NNPDF Collaboration journal October 2017
Longitudinal double-spin asymmetry for inclusive jet and dijet production in p p collisions at s = 510     GeV journal September 2019
PYTHIA 6.4 physics and manual journal May 2006
A brief introduction to PYTHIA 8.1 journal June 2008
Tuning PYTHIA 8.1: the Monash 2013 tune journal August 2014
Parton distributions with LHC data journal February 2013
Systematic event generator tuning for the LHC journal November 2009
Underlying event measurements in p + p collisions at s = 200     GeV at RHIC journal March 2020
Tuning Monte Carlo generators: The Perugia tunes journal October 2010
Herwig++ physics and manual journal November 2008
Event generator tunes obtained from underlying event and multiparton scattering measurements journal March 2016
Identified hadron spectra at large transverse momentum in p+p and d+Au collisions at sNN=200 GeV journal June 2006
Invariant jet mass measurements in p p collisions at s = 200     GeV at RHIC journal September 2021
Robust Independent Validation of Experiment and Theory: Rivet version 3 journal January 2020
Measurement of inclusive charged-particle jet production in Au + Au collisions at s N N = 200 GeV journal November 2020
Minuit - a system for function minimization and analysis of the parameter errors and correlations journal December 1975
Study of the energy dependence of the underlying event in proton-antiproton collisions journal November 2015
Measurement of groomed jet substructure observables in p+p collisions at s = 200 GeV with STAR journal December 2020
Cross Sections and Transverse Single-Spin Asymmetries in Forward Neutral-Pion Production from Proton Collisions at s = 200     GeV journal April 2004
Herwig 7.0/Herwig++ 3.0 release note journal April 2016

Similar Records

Study of very forward energy and its correlation with particle production at midrapidity in pp and p-Pb collisions at the LHC
Journal Article · 2022 · Journal of High Energy Physics (Online) · OSTI ID:1896970

Underlying event studies at ATLAS and CDF
Conference · 2011 · AIP Conf.Proc.1348:35-44,2011 · OSTI ID:1018357

Using Drell-Yan to probe the underlying event in Run II at Collider Detector at Fermilab (CDF)
Thesis/Dissertation · 2008 · OSTI ID:944231

Related Subjects