Event generator tunes obtained from underlying event and multiparton scattering measurements
- V. Khachatryan
- A. M. Sirunyan
- A. Tumasyan
- W. Adam
- E. Asilar
- T. Bergauer
- J. Brandstetter
- E. Brondolin
- M. Dragicevic
- J. Erö
- M. Friedl
- Rudolf Konrad Fruhwirth
- V. M. Ghete
- C. Hartl
- N. Hörmann
- J. Hrubec
- M. Jeitler
- V. Knünz
- A. König
- M. Krammer
- Ilse Krätschmer
- Dietrich Liko
- T. Matsushita
- I. Mikulec
- D. Rabady
- B. Rahbaran
- H. Rohringer
- J. Schieck
- R. Schöfbeck
- J. Strauss
- W. Treberer-Treberspurg
- W. Waltenberger
- C.-E. Wulz
- V. Mossolov
- N. Shumeiko
- J. Suarez Gonzalez
- S. Alderweireldt
- T. Cornelis
- E. A. De Wolf
- X. Janssen
- A. Knutsson
- J. Lauwers
- S. Luyckx
- M. Van De Klundert
- H. Van Haevermaet
- P. Van Mechelen
- N. Van Remortel
- A. Van Spilbeeck
- S. Abu Zeid
- F. Blekman
- J. D’Hondt
- N. Daci
- I. De Bruyn
- Kevin Deroover
- N. Heracleous
- JKJ. Keaveney
- S. Lowette
- L. Moreels
- A. Olbrechts
- Q. Python
- Danielle Strom
- S. Tavernier
- W. Van Doninck
- P. Van Mulders
- G. P. Van Onsem
- Isis Van Parijs
- P. Barria
- H. Brun
- C. Caillol
- B. Clerbaux
- G. De Lentdecker
- Daniele Fasanella
- L. Favart
- A. Grebenyuk
- G. Karapostoli
- T. Lenzi
- Alexandre F. Léonard
- T. Maerschalk
- A. Marinov
- L. Perniè
- A. Randle-Conde
- T. Ševa
- Catherine Vander Velde
- R. Yonamine
- Pascal Vanlaer
- R. Yonamine
- F. Zenoni
- F. Zhang
- V. Adler
- K. Beernaert
- L. Benucci
- A. Cimmino
- S. Crucy
- D. Dobur
- A. Fagot
- G. Garcia
- M. Gul
- J. Mccartin
- A. A. Ocampo Rios
- Dursen Deniz Poyraz
The European Physical Journal C · 2016 · Springer Science+Business Media
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Abstract
New sets of parameters ("tunes") for the underlying-event (UE) modelling of the pythia8, pythia6 and herwig++ Monte Carlo event generators are constructed using different parton distribution functions. Combined fits to CMS UE proton-proton ([Formula: see text]) data at [Formula: see text] and to UE proton-antiproton ([Formula: see text]) data from the CDF experiment at lower [Formula: see text], are used to study the UE models and constrain their parameters, providing thereby improved predictions for proton-proton collisions at 13[Formula: see text]. 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 ([Formula: see text] lepton-antilepton+jets) observables at 7 and 8[Formula: see text], as well as predictions for MB and UE observables at 13[Formula: see text].