Varga, Zoltán;
Vértesi, Róbert;
Barnaföldi, Gergely Gábor
Modification of Jet Structure in High-Multiplicity pp Collisions due to Multiple-Parton Interactions and Observing a Multiplicity-Independent Characteristic Jet Size
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Medientyp:
E-Artikel
Titel:
Modification of Jet Structure in High-Multiplicity pp Collisions due to Multiple-Parton Interactions and Observing a Multiplicity-Independent Characteristic Jet Size
Beteiligte:
Varga, Zoltán;
Vértesi, Róbert;
Barnaföldi, Gergely Gábor
Erschienen:
Hindawi Limited, 2019
Erschienen in:
Advances in High Energy Physics, 2019 (2019), Seite 1-12
Sprache:
Englisch
DOI:
10.1155/2019/6731362
ISSN:
1687-7357;
1687-7365
Entstehung:
Anmerkungen:
Beschreibung:
We study the multiplicity dependence of jet structures in pp collisions using Monte Carlo event generators. We give predictions for multiplicity-differential jet structures and present evidence for a nontrivial jet shape dependence on charged hadron event multiplicity that can be used as a sensitive tool to experimentally differentiate between equally well-preforming simulation tunes. We also propose a way to validate the presence and extent of effects such as multiple-parton interactions (MPI) or color reconnection (CR), based on the detection of nontrivial jet shape modification in high-multiplicity events at high pT. Using multiplicity-dependent jet structure observables in various pT windows might also help understanding the interplay between jet particles and the underlying event (UE). We introduce a multiplicity-independent characteristic jet size measure and use a simplistic model to aid its physical interpretation.