Centers and Institutes
Published September 20, 2011 | Version v1
Journal article Open

Properties of jets measured from tracks in proton-proton collisions at center-of-mass energy $\sqrt{s}=7  TeV$ with the ATLAS detector

Creators

  • 1. Albert-Ludwigs-Universität
  • 2. University of Oklahoma
  • 3. Universitat Autònoma de Barcelona
  • 4. Université de Genève
  • 5. Oxford University
  • 6. Azerbaijan Academy of Sciences
  • 7. Oklahoma State University
  • 8. Michigan State University
  • 9. Tel Aviv University
  • 10. Université Paris-Sud
  • 11. INFN Sezione di Milano
  • 12. Università di Udine
  • 13. Brookhaven National Laboratory
  • 14. Hampton University
  • 15. Yale University
  • 16. Max-Planck-Institut für Physik
  • 17. University of Chicago

Description

Jets are identified and their properties studied in center-of-mass energy $\sqrt{s}=7  TeV$ proton-proton collisions at the Large Hadron Collider using charged particles measured by the ATLAS inner detector. Events are selected using a minimum bias trigger, allowing jets at very low transverse momentum to be observed and their characteristics in the transition to high-momentum fully perturbative jets to be studied. Jets are reconstructed using the anti-$k_t$ algorithm applied to charged particles with two radius parameter choices, 0.4 and 0.6. An inclusive charged jet transverse momentum cross section measurement from 4 GeV to 100 GeV is shown for four ranges in rapidity extending to 1.9 and corrected to charged particle-level truth jets. The transverse momenta and longitudinal momentum fractions of charged particles within jets are measured, along with the charged particle multiplicity and the particle density as a function of radial distance from the jet axis. Comparison of the data with the theoretical models implemented in existing tunings of Monte Carlo event generators indicates reasonable overall agreement between data and Monte Carlo. These comparisons are sensitive to Monte Carlo parton showering, hadronization, and soft physics models.

Notes

Due to the large number of authors, only the first 20 and the University of Chicago authors are included on the above author list. Please download the article for the complete list of authors.

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PhysRevD.84.054001.pdf

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Additional details

Identifiers

DOI
10.1103/PhysRevD.84.054001
Other
oai:uchicago.tind.io:12461

Funding

Agencia Nacional de Promoción Científica y Tecnológica
Yerevan Physics Institute
Australian Research Council
Bundesministerium für Bildung, Wissenschaft und Forschung
Azerbaijan National Academy of Sciences
SSTC
National Council for Scientific and Technological Development
Fundação de Amparo à Pesquisa do Estado de São Paulo
Natural Sciences and Engineering Research Council of Canada
National Research Council Canada
Canada Foundation for Innovation
CERN
Consejo Nacional de Innovación, Ciencia y Tecnología
Chinese Academy of Sciences
Ministry of Science and Technology
National Natural Science Foundation of China
Ministerio de Ciencia, Tecnología e Innovación
Ministry of Education, Youth and Sports
Ministry of Industry and Trade
VSC CR
Danish National Research Foundation
Danish Natural Sciences Research Council
Lundbeck Foundation
ARTEMIS
Institut National de Physique Nucléaire et de Physique des Particules
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
Georgian National Academy of Sciences
Bundesministerium für Forschung, Technologie und Raumfahrt
Deutsche Forschungsgemeinschaft
HGF
MPG
AvH Foundation
GSRT
ISF
MINERVA
GIF
DIP
Benoziyo Center
INFN
MEXT
JSPS
CNRST
FOM
NWO
RCN
MNiSW
Gabinete de Relações Internacionais da Ciência e do Ensino Superior
Fundação para a Ciência e Tecnologia
MERYS (MECTS)
MES of Russia
Rosatom (Russia)
Joint Institute for Nuclear Research
Ministry of Education, Science and Technological Development
MSSR
The Slovenian Research and Innovation Agency
Ministry of Science Technology and Higher Education
DST/NRF
Ministerio de Ciencia, Innovación y Universidades
Stockholm Resilience Centre
Wallenberg Foundation
SER
Swiss National Science Foundation
Cantons of Bern and Geneva
National Science and Technology Council
Turkish Atomic Energy Authority
Science and Technology Facilities Council
Royal Society
Leverhulme Trust
U.S. Department of Energy
National Science Foundation

UChicago Information

Division(s)
Physical Sciences Division
Department(s)
Enrico Fermi Institute