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Title: Probing color coherence effects in pp collisions at √s = 7 TeV

Abstract

A study of color coherence effects in pp collisions at a center-of-mass energy of 7 TeV is presented. The data used in the analysis were collected in 2010 with the CMS detector at the LHC and correspond to an integrated luminosity of 36 inverse picobarns. Events are selected that contain at least three jets and where the two jets with the largest transverse momentum exhibit a back-to-back topology. The measured angular correlation between the second- and third-leading jet is shown to be sensitive to color coherence effects, and is compared to the predictions of Monte Carlo models with various implementations of color coherence. None of the models describe the data satisfactorily.

Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
The CMS Collaboration
OSTI Identifier:
1151693
Report Number(s):
FERMILAB-PUB-13-620-CMS
Journal ID: ISSN 1434-6044; arXiv eprint number arXiv:1311.5815
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 74; Journal Issue: 6; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Chatrchyan, Serguei. Probing color coherence effects in pp collisions at √s = 7 TeV. United States: N. p., 2014. Web. doi:10.1140/epjc/s10052-014-2901-8.
Chatrchyan, Serguei. Probing color coherence effects in pp collisions at √s = 7 TeV. United States. https://doi.org/10.1140/epjc/s10052-014-2901-8
Chatrchyan, Serguei. Wed . "Probing color coherence effects in pp collisions at √s = 7 TeV". United States. https://doi.org/10.1140/epjc/s10052-014-2901-8. https://www.osti.gov/servlets/purl/1151693.
@article{osti_1151693,
title = {Probing color coherence effects in pp collisions at √s = 7 TeV},
author = {Chatrchyan, Serguei},
abstractNote = {A study of color coherence effects in pp collisions at a center-of-mass energy of 7 TeV is presented. The data used in the analysis were collected in 2010 with the CMS detector at the LHC and correspond to an integrated luminosity of 36 inverse picobarns. Events are selected that contain at least three jets and where the two jets with the largest transverse momentum exhibit a back-to-back topology. The measured angular correlation between the second- and third-leading jet is shown to be sensitive to color coherence effects, and is compared to the predictions of Monte Carlo models with various implementations of color coherence. None of the models describe the data satisfactorily.},
doi = {10.1140/epjc/s10052-014-2901-8},
journal = {European Physical Journal. C, Particles and Fields},
number = 6,
volume = 74,
place = {United States},
year = {2014},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 14 works
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Figures / Tables:

Fig. 1 Fig. 1: Visualization of the observable $β$ in ($η$, $\phi$) space using a simulated three-jet event. The sizes of the rectangular boxes are proportional to the particle energies

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Works referenced in this record:

New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
journal, July 2002


MadGraph/MadEvent v4: the new web generation
journal, September 2007


The anti- k t jet clustering algorithm
journal, April 2008


Matching Matrix Elements and Parton Showers with HERWIG and PYTHIA
journal, May 2004


Determination of jet energy calibration and transverse momentum resolution in CMS
journal, November 2011


The merging of jets
journal, August 1984


A brief introduction to PYTHIA 8.1
journal, June 2008

  • Sjöstrand, Torbjörn; Mrenna, Stephen; Skands, Peter
  • Computer Physics Communications, Vol. 178, Issue 11
  • DOI: 10.1016/j.cpc.2008.01.036

PYTHIA 6.4 physics and manual
journal, May 2006


Parton fragmentation and string dynamics
journal, July 1983


Monte Carlo simulation of general hard processes with coherent QCD radiation
journal, December 1988


FastJet user manual: (for version 3.0.2)
journal, March 2012


Test of fragmentation models by comparison with three-jet events produced in e+e−→ hadrons
journal, January 1984


A multidimensional unfolding method based on Bayes' theorem
journal, August 1995

  • D'Agostini, G.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 362, Issue 2-3
  • DOI: 10.1016/0168-9002(95)00274-X

Coherent parton showers versus matrix elements - implications of PETRA/PEP data
journal, February 1987


Interleaved parton showers and tuning prospects
journal, March 2011

  • Corke, Richard; Sjöstrand, Torbjörn
  • Journal of High Energy Physics, Vol. 2011, Issue 3
  • DOI: 10.1007/JHEP03(2011)032

Pileup subtraction using jet areas
journal, January 2008


Geant4—a simulation toolkit
journal, July 2003

  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3
  • DOI: 10.1016/S0168-9002(03)01368-8

Transverse-momentum-ordered showers and interleaved multiple interactions
journal, February 2005


The CMS experiment at the CERN LHC
journal, August 2008


Herwig++ physics and manual
journal, November 2008


A multiple-interaction model for the event structure in hadron collisions
journal, October 1987


New formalism for QCD parton showers
journal, December 2003


Comparison of the Particle Flow in q q ¯ g and q q ¯ γ Events in e + e Annihilation
journal, August 1986


Simulation of multiple partonic interactions in Herwig++
journal, July 2008


Determination of jet energy calibration and transverse momentum resolution in CMS
text, January 2011


The anti-k_t jet clustering algorithm
text, January 2008


Herwig++ Physics and Manual
text, January 2008


Interleaved Parton Showers and Tuning Prospects
text, January 2010


New formalism for QCD parton showers
text, January 2003


Coherent parton showers versus matrix elements - implications of PETRA/PEP data
journal, February 1987


A comparative study of coherent and non-coherent parton shower evolution
journal, January 1987