Internet Archive Scholar

Measurement of the properties of top quarks in decays (includes W polarization, top quark charge and couplings)

Jonatan Piedra
2016 Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2015)   unpublished

Preserved Fulltext

fulltext thumbnail
Web Archive Capture PDF (346.1 kB)
https://web.archive.org/web/20190426192808/https://pos.sissa.it/234/302/pdf

A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL. The file type is application/pdf.

Measurements of top quark properties in top quark decays are presented, using data collected by the CMS experiment during the years 2011 and 2012. The polarization of W bosons in top quark decays is measured. The W boson helicity fractions and angular asymmetries are extracted, and limits on anomalous contributions to the Wtb vertex are determined. Furthermore, searches for flavor changing neutral currents in top quark decays are presented. The flavor contents in top quark pair events are
more » ... ed using the fraction of top quarks decaying into a W boson and a b quark relative to all top quark decays, R = BR(t → Wb)/BR(t → Wq), and the result is used to determine the CKM matrix element V tb as well as the width of the top quark resonance.
doi:10.22323/1.234.0302 fatcat:bzsbeqwksjfv7bqe446h67qz6m
Citation

Jonatan Piedra. "Measurement of the properties of top quarks in decays (includes W polarization, top quark charge and couplings)." Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2015) (2016)