Reconstruction of High Transverse Momentum Top Quarks at CMS
Gavril Giurgiu (for the CMS collaboration)
TL;DR
This paper discusses the challenges of reconstructing high transverse momentum top quarks at CMS and introduces a new jet tagging algorithm that improves detection efficiency and background rejection for boosted top quarks.
Contribution
A novel top jet tagging algorithm designed for boosted top quarks at CMS, achieving high efficiency and background rejection.
Findings
Top jet tagging efficiency of 46% at 600 GeV/c
QCD jet rejection rate of 98.5%
Enhanced detection prospects for boosted top quarks
Abstract
High mass resonances decaying into ttbar pairs appear in many extensions of the Standard Model. The top quarks from these decays have high transverse momenta and their decay products are highly collimated due to the boost into the lab frame. As a result the standard techniques for reconstructing ttbar events begin to fail. In this talk we discuss the prospects for detecting booted top quarks at CMS. A new top jet tagging algorithm is presented. This algorithm achieves an efficiency of 46% for boosted top jets and rejection of 98.5% for generic QCD jets with transverse momenta of 600 GeV/.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Particle Detector Development and Performance · High-Energy Particle Collisions Research