Charged jet cross sections and properties in proton-proton collisions at √s = 7 TeV
ALICE Collaboration. (2015). Charged jet cross sections and properties in proton-proton collisions at √s = 7 TeV. Physical Review D, 91(11), Article 112012. https://doi.org/10.1103/PhysRevD.91.112012
Published in
Physical Review DAuthors
Date
2015Copyright
© 2015 Authors. 2015 CERN, for the ALICE Collaboration. Published by the American Physical Society under the terms of
the Creative Commons Attribution 3.0 License. Further distribution
of this work must maintain attribution to the author(s) and
the published article’s title, journal citation, and DOI.
The differential charged jet cross sections, jet fragmentation distributions, and jet shapes are measured in
minimum bias proton-proton collisions at center-of-mass energy ffiffi
s p ¼ 7 TeV using the ALICE detector at
the LHC. Jets are reconstructed from charged particle momenta in the midrapidity region using the
sequential recombination kT and anti-kT as well as the SISCone jet finding algorithms with several
resolution parameters in the range R ¼ 0.2–0.6. Differential jet production cross sections measured with
the three jet finders are in agreement in the transverse momentum (pT) interval 20 < pjet;ch
T < 100 GeV=c.
They are also consistent with prior measurements carried out at the LHC by the ATLAS Collaboration. The
jet charged particle multiplicity rises monotonically with increasing jet pT, in qualitative agreement with
prior observations at lower energies. The transverse profiles of leading jets are investigated using radial
momentum density distributions as well as distributions of the average radius containing 80% (hR80i) of the
reconstructed jet pT. The fragmentation of leading jets with R ¼ 0.4 using scaled pT spectra of the jet
constituents is studied. The measurements are compared to model calculations from event generators
(PYTHIA, PHOJET, HERWIG). The measured radial density distributions and hR80i distributions are well
described by the PYTHIA model (tune Perugia-2011). The fragmentation distributions are better described
by HERWIG.
...
Publisher
American Physical SocietyISSN Search the Publication Forum
1550-7998Keywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/24786707
Metadata
Show full item recordCollections
License
Except where otherwise noted, this item's license is described as © 2015 Authors. 2015 CERN, for the ALICE Collaboration. Published by the American Physical Society under the terms of
the Creative Commons Attribution 3.0 License. Further distribution
of this work must maintain attribution to the author(s) and
the published article’s title, journal citation, and DOI.
Related items
Showing items with similar title or keywords.
-
Prompt and non-prompt J/ψ production cross sections at midrapidity in proton-proton collisions at √s = 5.02 and 13 TeV
ALICE collaboration (Springer, 2022)The production of J/ψ is measured at midrapidity (|y| < 0.9) in proton-proton collisions at √s = 5.02 and 13 TeV, through the dielectron decay channel, using the ALICE detector at the Large Hadron Collider. The data sets ... -
Charged jet cross section and fragmentation in proton-proton collisions at √s = 7 TeV
ALICE Collaboration (American Physical Society, 2019)We report the differential charged jet cross section and jet fragmentation distributions measured with the ALICE detector in proton-proton collisions at a center-of-mass energy √ s = 7 TeV . Jets with ... -
Measurement of pion, kaon and proton production in proton–proton collisions at √s = 7 TeV
ALICE Collaboration (Springer Berlin Heidelberg, 2015)The measurement of primary π±, K ±, p and p production at mid-rapidity (|y| < 0.5) in proton–proton collisions at √s = 7 TeV performed with a large ion collider experiment at the large hadron collider (LHC) is ... -
Scattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC
ALICE Collaboration (American Physical Society, 2020)The study of the strength and behavior of the antikaon-nucleon ((K) over bar N) interaction constitutes one of the key focuses of the strangeness sector in low-energy quantum chromodynamics (QCD). In this Letter a unique ... -
Dielectron production in proton-proton and proton-lead collisions at √sNN = 5.02 TeV
ALICE Collaboration (American Physical Society, 2020)The first measurements of dielectron production at midrapidity (|ηe| < 0.8) in proton–proton and proton–lead collisions at √sNN = 5.02 TeV at the LHC are presented. The dielectron cross section is measured with the ALICE ...