Identification of beauty and charm quark jets at LHCb

Research output: Contribution to journalArticlepeer-review

Authors

  • LHCb Collaboration
  • R. Aaij
  • B. Adeva
  • M. Adinolfi
  • A. Affolder
  • Z. Ajaltouni
  • S. Akar
  • J. Albrecht
  • F. Alessio
  • M. Alexander
  • S. Ali
  • G. Alkhazov
  • P. Alvarez Cartelle
  • A. A. Alves
  • S. Amato
  • S. Amerio
  • Y. Amhis
  • L. An
  • L. Anderlini
  • J. Anderson
  • M. Andreotti
  • J. E. Andrews
  • R. B. Appleby
  • O. Aquines Gutierrez
  • F. Archilli
  • P. DArgent
  • A. Artamonov
  • M. Artuso
  • E. Aslanides
  • G. Auriemma
  • M. Baalouch
  • S. Bachmann
  • J. J. Back
  • A. Badalov
  • C. Baesso
  • W. Baldini
  • R. J. Barlow
  • C. Barschel
  • S. Barsuk
  • W. Barter
  • Simone Bifani
  • N. Farley
  • P. Griffith
  • Philip Ilten
  • Ian Kenyon
  • Cristina Lazzeroni
  • A. Mazurov
  • J. McCarthy
  • L. Pescatore
  • Dmitry Popov
  • Nigel Watson

Colleges, School and Institutes

External organisations

  • CERN
  • Universidad de Santiago de Compostela
  • University of Bristol
  • University of Liverpool
  • LPC
  • IN2P3
  • TU Dortmund University, Germany
  • University of Glasgow
  • Institution Nikhef National Institute for Subatomic Physics
  • Petersburg Nuclear Physics Institute (PNPI)
  • Imperial College London
  • University of Cincinnati
  • Universidade Federal Do Rio de Janeiro
  • INFN Padova
  • Tsinghua University
  • Sezione INFN di Firenze
  • University of Florence
  • University of Zurich
  • Sezione INFN di Ferrara
  • Universitàdi Ferrara
  • University of Maryland
  • University of Manchester
  • Max-Planck-Institut für Kernphysik (MPIK)
  • Ruprecht-Karls-Universität Heidelberg
  • Institute for High Energy Physics (IHEP)
  • Syracuse University
  • Department of Physics and Astronomy and INFN
  • Università della Basilicata
  • University of Warwick
  • Universitat de Barcelona
  • Pontifícia Universidade Católica Do Rio de Janeiro

Abstract

Identification of jets originating from beauty and charm quarks is important for measuring Standard Model processes and for searching for new physics. The performance of algorithms developed to select b- and c-quark jets is measured using data recorded by LHCb from proton-proton collisions at √s = 7 TeV in 2011 and at √s = 8 TeV in 2012. The efficiency for identifying a b(c) jet is about 65%(25%) with a probability for misidentifying a light-parton jet of 0.3% for jets with transverse momentum pT > 20GeV and pseudorapidity 2.2 < η < 4.2. The dependence of the performance on the pT and η of the jet is also measured.

Details

Original languageEnglish
Article numberP06013
Number of pages29
JournalJournal of Instrumentation
Volume10
Issue number6
Publication statusPublished - 22 Jun 2015

Keywords

  • Analysis and statistical methods, Performance of High Energy Physics Detectors

ASJC Scopus subject areas