Tuning Monte Carlo generators: The Perugia tunes

Journal Article · Fri Oct 01 04:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.074018· OSTI ID:21421378

Skands, Peter Z ^[1]

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1. CERN PH-TH, Case 01600, CH-1211 Geneva 23 (Switzerland)

We present 9 new tunes of the p{sub perpendicular}-ordered shower and underlying-event model in Pythia 6.4. These 'Perugia' tunes update and supersede the older 'S0' family. The data sets used to constrain the models include hadronic Z{sup 0} decays at LEP, Tevatron min-bias data at 630, 1800, and 1960 GeV, Tevatron Drell-Yan data at 1800 and 1960 GeV, and SPS min-bias data at 200, 546, and 900 GeV. In addition to the central parameter set, called 'Perugia 0', we introduce a set of 8 related 'Perugia variations' that attempt to systematically explore soft, hard, parton density, and color structure variations in the theoretical parameters. Based on these variations, a best-guess prediction of the charged track multiplicity in inelastic, nondiffractive minimum-bias events at the LHC is made. Note that these tunes can only be used with Pythia 6, not with Pythia 8.

• OSTI ID: 21421378
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 82; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
BOSONS
CALCULATION METHODS
CERN LHC
CERN SPS SYNCHROTRON
COLOR MODEL
COMPOSITE MODELS
CYCLIC ACCELERATORS
DECAY
DENSITY
DRELL MODEL
ELEMENTARY PARTICLES
ENERGY RANGE
FERMILAB TEVATRON
FORECASTING
GEV RANGE
GEV RANGE 100-1000
HADRONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEP STORAGE RINGS
MATHEMATICAL MODELS
MONTE CARLO METHOD
MULTIPLICITY
PARTICLE DECAY
PARTICLE MODELS
PHYSICAL PROPERTIES
QUARK MODEL
STORAGE RINGS
SYNCHROTRONS
TEV RANGE
TEV RANGE 01-10
TUNING
Z NEUTRAL BOSONS