skip to main content
Idioma:
Primo Search
Clear Search Box
Search in: Busca Geral
Busca Avançada
Busca por Índices

Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √ s = 8 TeV

Khachatryan, V.

Journal of instrumentation, 2015-06, Vol.10 (6), p.P06005-P06005 [Periódico revisado por pares]

United States: Institute of Physics (IOP)

Texto completo disponível

Citações Citado por
  • Título:
    Performance of electron reconstruction and selection with the CMS detector in proton-proton collisions at √ s = 8 TeV
  • Autor: Khachatryan, V.
  • Assuntos: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
  • É parte de: Journal of instrumentation, 2015-06, Vol.10 (6), p.P06005-P06005
  • Notas: AC02-07CH11359
    USDOE Office of Science (SC), High Energy Physics (HEP)
    FERMILAB-PUB-15-070-CMS; CERN-PH-EP-2015-004; CMS-EGM-13-001
  • Descrição: The performance and strategies used in electron reconstruction and selection at CMS are presented based on data corresponding to an integrated luminosity of 19.7 fb-1, collected in proton-proton collisions at √s = 8 TeV at the CERN LHC. The paper focuses on prompt isolated electrons with transverse momenta ranging from about 5 to a few 100 GeV. A detailed description is given of the algorithms used to cluster energy in the electromagnetic calorimeter and to reconstruct electron trajectories in the tracker. The electron momentum is estimated by combining the energy measurement in the calorimeter with the momentum measurement in the tracker. Benchmark selection criteria are presented, and their performances assessed using Z, Υ, and J/ψ decays into e++ e- pairs. The spectra of the observables relevant to electron reconstruction and selection as well as their global efficiencies are well reproduced by Monte Carlo simulations. The momentum scale is calibrated with an uncertainty smaller than 0.3%. The momentum resolution for electrons produced in Z boson decays ranges from 1.7 to 4.5%, depending on electron pseudorapidity and energy loss through bremsstrahlung in the detector material.
  • Editor: United States: Institute of Physics (IOP)
  • Idioma: Inglês
Links
Voltar para lista de resultados

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.