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

Authors

• S. Chatrchyan, Yerevan Physics Institute, Armenia
• The CMS collaboration
• Ekaterina Avdeeva, University of Nebraska-LincolnFollow
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• Daniel R. Claes, University of Nebraska-LincolnFollow
• Aaron Dominguez, University of Nebraska-LincolnFollow
• M. Eads, University of Nebraska-LincolnFollow
• Rebeca Gonzalez Suarez, University of Nebraska-LincolnFollow
• J. Keller, University of Nebraska-Lincoln, Lincoln,
• Ilya Kravchenko, University of Nebraska-LincolnFollow
• Jose Lazo-Flores, University of Nebraska-LincolnFollow
• Sudhir Malik, University of Nebraska - LincolnFollow
• F. Meier, University of Nebraska-LincolnFollow
• Gregory Snow, University of Nebraska - LincolnFollow
• CMS Collaboration

Document Type

Article

Date of this Version

2014

Citation

Eur. Phys. J. C (2014) 74:2901

Comments

Published by SCOAP3 under Creative Commons license.

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 theCMS detector at the LHC and correspond to an integrated luminosity of 36 pb⁻¹. 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 themodels describe the data satisfactorily.