The algorithm developed by the CMS Collaboration to reconstruct and identify τ leptons produced in proton-proton collisions at √s=7 and 8 TeV, via their decays to hadrons and a neutrino, has been significantly improved. The changes include a revised reconstruction of π0 candidates, and improvements in multivariate discriminants to separate τ leptons from jets and electrons. The algorithm is extended to reconstruct τ leptons in highly Lorentz-boosted pair production, and in the high-level trigger. The performance of the algorithm is studied using proton-proton collisions recorded during 2016 at √s=13 TeV, corresponding to an integrated luminosity of 35.9 fb-1. The performance is evaluated in terms of the efficiency for a genuine τ lepton to pass the identification criteria and of the probabilities for jets, electrons, and muons to be misidentified as τ leptons. The results are found to be very close to those expected from Monte Carlo simulation.

Albert, M., Armen, T., Wolfgang, A., Federico, A., Ece, A., Thomas, B., et al. (2018). Performance of reconstruction and identification of τ leptons decaying to hadrons and vτ in pp collisions at √s=13 TeV. JOURNAL OF INSTRUMENTATION, 13(10), P10005-P10005 [10.1088/1748-0221/13/10/P10005].

Performance of reconstruction and identification of τ leptons decaying to hadrons and vτ in pp collisions at √s=13 TeV

Andrea Benaglia;Andrea Beschi;Luca Brianza;Francesco Brivio;Vincenzo Ciriolo;Mauro Emanuele Dinardo;Sara Fiorendi;Alessio Ghezzi;Pietro Govoni;Martina Malberti;Andrea Massironi;MONTI, FABIO;Luigi Moroni;Marco Paganoni;Stefano Ragazzi;Tommaso Tabarelli de Fatis;Davide Zuolo;Federico De Guio;LUCCHINI, MARCO TOLIMAN
2018

Abstract

The algorithm developed by the CMS Collaboration to reconstruct and identify τ leptons produced in proton-proton collisions at √s=7 and 8 TeV, via their decays to hadrons and a neutrino, has been significantly improved. The changes include a revised reconstruction of π0 candidates, and improvements in multivariate discriminants to separate τ leptons from jets and electrons. The algorithm is extended to reconstruct τ leptons in highly Lorentz-boosted pair production, and in the high-level trigger. The performance of the algorithm is studied using proton-proton collisions recorded during 2016 at √s=13 TeV, corresponding to an integrated luminosity of 35.9 fb-1. The performance is evaluated in terms of the efficiency for a genuine τ lepton to pass the identification criteria and of the probabilities for jets, electrons, and muons to be misidentified as τ leptons. The results are found to be very close to those expected from Monte Carlo simulation.
Articolo in rivista - Articolo scientifico
LHC,CMS
English
2018
13
10
P10005
P10005
none
Albert, M., Armen, T., Wolfgang, A., Federico, A., Ece, A., Thomas, B., et al. (2018). Performance of reconstruction and identification of τ leptons decaying to hadrons and vτ in pp collisions at √s=13 TeV. JOURNAL OF INSTRUMENTATION, 13(10), P10005-P10005 [10.1088/1748-0221/13/10/P10005].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/207508
Citazioni
  • Scopus 83
  • ???jsp.display-item.citation.isi??? 72
Social impact