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Performance of the CMS missing transverse momentum reconstruction in pp data at vs = 8 TeV

Abstract: The performance of missing transverse energy reconstruction algorithms is presented using vs=8 TeV proton-proton (pp) data collected with the CMS detector. Events with anomalous missing transverse energy are studied, and the performance of algorithms used to identify and remove these events is presented. The scale and resolution for missing transverse energy, including the effects of multiple pp interactions (pileup), are measured using events with an identified Z boson or isolated photon, and are found to be well described by the simulation. Novel missing transverse energy reconstruction algorithms developed specifically to mitigate the effects of large numbers of pileup interactions on the missing transverse energy resolution are presented. These algorithms significantly reduce the dependence of the missing transverse energy resolution on pileup interactions. Finally, an algorithm that provides an estimate of the significance of the missing transverse energy is presented, which is used to estimate the compatibility of the reconstructed missing transverse energy with a zero nominal value.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Journal of Instrumentation, Volume 10, February 2015

Editorial: Institute of Physics

 Fecha de publicación: 01/02/2015

Nº de páginas: 58

Tipo de publicación: Artículo de Revista

 DOI: 10.1088/1748-0221/10/02/P02006

ISSN: 1748-0221

Proyecto español: FPA2014-55295-C3-1-R ; FPA 2011-28694-C02-01

Url de la publicación: https://doi.org/10.1088/1748-0221/10/02/P02006