Performance of t-lepton reconstruction and identification in CMS

The performance of τ-lepton reconstruction and identification algorithms is studied using a data sample of proton-proton collisions at √ s = 7 TeV, corresponding to an integrated luminosity of 36 pb−1 collected with the CMS detector at the LHC. The τ leptons that decay into one or three charged hadr...

Descripción completa

Detalles Bibliográficos
Autores: Chatrchyan, S.; Brochero Cifuentes, Javier Andrés|||0000-0003-2093-7856; Cabrillo Bartolomé, José Iban; Calderón Tazón, Alicia|||0000-0002-7205-2040; Chuang, S. H.; Duarte Campderros, Jorge|||0000-0003-0687-5214; Felcini, Marta; Fernández García, Marcos|||0000-0002-4824-1087; Gómez Gramuglio, Gervasio|||0000-0002-1077-6553; González Sánchez, Francisco Javier; Jordá Lope, Clara; Lobelle Pardo, Patricia; López Virto, María Amparo; Marco de Lucas, Jesús|||0000-0001-7914-8494; Marco de Lucas, Rafael José; Martínez Rivero, Celso; Matorras Weinig, Francisco|||0000-0003-4295-5668; Muñoz Sánchez, Francisca Javiela; Piedra Gómez, Jonatan|||0000-0002-9157-1700; Rodrigo Anoro, Teresa; Rodríguez Marrero, Ana Yaiza; Ruiz Jimeno, Alberto|||0000-0002-3639-0368; Scodellaro, Luca|||0000-0002-4974-8330; Sobrón Sañudo, Mar; Vila Álvarez, Iván |||0000-0002-6797-7209; Vilar Cortabitarte, Rocío|||0000-0003-2045-8054
Tipo de documento: Artículo
Fecha de publicación:2012
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Lenguaje:Inglés
OAI Identifier:oai:repositorio.unican.es:10902/28985
Acceso en línea:https://hdl.handle.net/10902/28985
Nivel de acceso:Acceso abierto
Palabra clave:Si microstrip and pad detectors
Calorimeter methods
Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)
Descripción
Sumario:The performance of τ-lepton reconstruction and identification algorithms is studied using a data sample of proton-proton collisions at √ s = 7 TeV, corresponding to an integrated luminosity of 36 pb−1 collected with the CMS detector at the LHC. The τ leptons that decay into one or three charged hadrons, zero or more short-lived neutral hadrons, and a neutrino are identified using final-state particles reconstructed in the CMS tracker and electromagnetic calorimeter. The reconstruction efficiency of the algorithms is measured using τ leptons produced in Z-boson decays. The τ-lepton misidentification rates for jets and electrons are determined.