Measurement of the mass difference between top and antitop quarks

Mostrar otras versiones (1)

A measurement of the mass difference between the top and the antitop quark (Delta m(t) = m(t) - m(anti-t)) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data collected by the CMS experiment at the LHC, corresponding to an int...

Descripción completa

Detalles Bibliográficos
Autor principal: Blyweert, Stijn
Lenguaje:eng
Publicado: 2013
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1508021
_version_ 1780927539221364736
author Blyweert, Stijn
author_facet Blyweert, Stijn
author_sort Blyweert, Stijn
collection CERN
description A measurement of the mass difference between the top and the antitop quark (Delta m(t) = m(t) - m(anti-t)) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.96 +/- 0.11 inverse femtobarns, and yields the value of Delta m(t) = -0.44 +/- 0.46 (stat) +/- 0.27 (syst) GeV. This result is consistent with equality of particle and antiparticle masses required by CPT invariance, and provides a significantly improved precision relative to existing measurements.
id cern-1508021
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-15080212019-09-30T06:29:59Zhttp://cds.cern.ch/record/1508021engBlyweert, StijnMeasurement of the mass difference between top and antitop quarksDetectors and Experimental TechniquesA measurement of the mass difference between the top and the antitop quark (Delta m(t) = m(t) - m(anti-t)) is performed using events with a muon or an electron and at least four jets in the final state. The analysis is based on data collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.96 +/- 0.11 inverse femtobarns, and yields the value of Delta m(t) = -0.44 +/- 0.46 (stat) +/- 0.27 (syst) GeV. This result is consistent with equality of particle and antiparticle masses required by CPT invariance, and provides a significantly improved precision relative to existing measurements.CMS-CR-2013-011oai:cds.cern.ch:15080212013-01-16
spellingShingle Detectors and Experimental Techniques
Blyweert, Stijn
Measurement of the mass difference between top and antitop quarks
title Measurement of the mass difference between top and antitop quarks
title_full Measurement of the mass difference between top and antitop quarks
title_fullStr Measurement of the mass difference between top and antitop quarks
title_full_unstemmed Measurement of the mass difference between top and antitop quarks
title_short Measurement of the mass difference between top and antitop quarks
title_sort measurement of the mass difference between top and antitop quarks
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1508021
work_keys_str_mv AT blyweertstijn measurementofthemassdifferencebetweentopandantitopquarks

Ejemplares similares