Measurement of b jet shapes in proton-proton collisions at √s = 5.02 TeV


Sirunyan A., Tumasyan A., Adam W., Ambrogi F., Bergauer T., Dragicevic M., ...More

Journal of High Energy Physics, vol.2021, no.5, 2021 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2021 Issue: 5
  • Publication Date: 2021
  • Doi Number: 10.1007/jhep05(2021)054
  • Title of Journal : Journal of High Energy Physics
  • Keywords: B physics, Hadron-Hadron scattering (experiments), Jet physics, QUARK, QCD

Abstract

© 2021, The Author(s).We present the first study of charged-hadron production associated with jets originating from b quarks in proton-proton collisions at a center-of-mass energy of 5.02 TeV. The data sample used in this study was collected with the CMS detector at the CERN LHC and corresponds to an integrated luminosity of 27.4 pb−1. To characterize the jet substructure, the differential jet shapes, defined as the normalized transverse momentum distribution of charged hadrons as a function of angular distance from the jet axis, are measured for b jets. In addition to the jet shapes, the per-jet yields of charged particles associated with b jets are also quantified, again as a function of the angular distance with respect to the jet axis. Extracted jet shape and particle yield distributions for b jets are compared with results for inclusive jets, as well as with the predictions from the pythia and herwig++ event generators. [Figure not available: see fulltext.]