Performance of missing transverse momentum reconstruction with the ATLAS detector using proton-proton collisions at s√ = 13 TeV

The performance of the missing transverse momentum ( EmissT ) reconstruction with the ATLAS detector is evaluated using data collected in proton?proton collisions at the LHC at a centre-of-mass energy of 13 TeV in 2015. To reconstruct EmissT , fully calibrated electrons, muons, photons, hadronically...

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Detalles Bibliográficos
Autores: Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Alconada Verzini, María Josefina, Alonso, Francisco, Arduh, Francisco Anuar, Dova, Maria Teresa, Hoya, Joaquín, Monticelli, Fernando Gabriel, Wahlberg, Hernan Pablo, Bossio Sola, Jonathan David, Daneri, María Florencia, Devesa, Maria Roberta, Marceca, Gino, Otero y Garzon, Gustavo Javier, Piegaia, Ricardo Nestor, Sacerdoti, Sabrina, Zinonos, Z., Zinser, M., Ziolkowski, M., Živković, L., Zobernig, G., Zoccoli, A., Zoch, K., Nedden, M. zur, Zorbas, T. G., Zou, R., Zwalinski, L., The ATLAS Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/118067
Acceso en línea:http://hdl.handle.net/11336/118067
Access Level:acceso abierto
Palabra clave:ATLAS
HIGH ENERGY PHYSICS
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
Descripción
Sumario:The performance of the missing transverse momentum ( EmissT ) reconstruction with the ATLAS detector is evaluated using data collected in proton?proton collisions at the LHC at a centre-of-mass energy of 13 TeV in 2015. To reconstruct EmissT , fully calibrated electrons, muons, photons, hadronically decaying τ-leptons , and jets reconstructed from calorimeter energy deposits and charged-particle tracks are used. These are combined with the soft hadronic activity measured by reconstructed charged-particle tracks not associated with the hard objects. Possible double counting of contributions from reconstructed charged-particle tracks from the inner detector, energy deposits in the calorimeter, and reconstructed muons from the muon spectrometer is avoided by applying a signal ambiguity resolution procedure which rejects already used signals when combining the various EmissT contributions. The individual terms as well as the overall reconstructed EmissT are evaluated with various performance metrics for scale (linearity), resolution, and sensitivity to the data-taking conditions. The method developed to determine the systematic uncertainties of the EmissT scale and resolution is discussed. Results are shown based on the full 2015 data sample corresponding to an integrated luminosity of 3.2 fb−1 .

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