Event generator tunes obtained from underlying event and multiparton scattering measurements

Title
Event generator tunes obtained from underlying event and multiparton scattering measurements
Author
김태정
Keywords
DOUBLE PARTON SCATTERING; CROSS-SECTIONS; PYTHIA; COLLISIONS
Issue Date
2016-03
Publisher
SPRINGER
Citation
EUROPEAN PHYSICAL JOURNAL C, v. 76, NO 3, Article number 155, Page. 1-1
Abstract
New sets of parameters ("tunes")for the underlying-event (UE) modelling of the PYTHIA8, PYTHIA6 and HERWIG++ MonteCarlo event generators are constructed using different parton distribution functions. Combined fits to CMS UE proton-proton (pp) data at root s = 7 TeV and to UE proton-antiproton (p (P) over bar) data from the CDF experiment at lower root s, are used to study the UE models and constrain their parameters, providing thereby improved predictions for proton-proton collisions at 13 TeV. In addition, it is investigated whether the values of the parameters obtained from fits to UE observables are consistent with the values determined from fitting observables sensitive to double-parton scattering processes. Finally, comparisons are presented of the UE tunes to "minimum bias" (MB) events, multijet, and Drell-Yan (q (Q) over bar -˃ Z/gamma* -˃ lepton-antilepton+jets) observables at 7 and 8 TeV, as well as predictions for MB and UE observables at 13 TeV.
URI
https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-016-3988-xhttp://hdl.handle.net/20.500.11754/34624
ISSN
1434-6044; 1434-6052
DOI
10.1140/epjc/s10052-016-3988-x
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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