7-9 April 2014
Royal Holloway, University of London
Europe/London timezone
Institute of Physics 2014 Joint High Energy Particle Physics and Astro Particle Physics Groups Annual Meeting

Top pair differential cross-section measurements with respect to MET, HT and other global distributions at CMS

8 Apr 2014, 15:00
15m
Room A (Windsor Building)

Room A

Windsor Building

contributed talk The Energy Frontier Programme Parallel 1A

Speaker

Jeson Abe Jacob (University of Bristol (GB))

Description

Measurements of the top-quark pair differential cross-section with respect to global distributions including missing transverse energy, scalar sum of jet transverse momenta, scalar sum of total event scalar sum, leptonic W boson transverse momentum and leptonic W boson transverse mass have been carried out on 19.7fb-1 of data at 8TeV obtained from the CMS detector at the LHC. After a tight selection, signal and background templates are fitted to data and the resulting number of signal events is unfolded to the true distribution using the Singular Value Decomposition method. The differential cross-section calculation produces results which were found to be consistent with Monte Carlo simulation. This study complements a previous study with respect to missing transverse energy on 5.1fb-1 of data at 7TeV. A combined measurement on 7TeV and 8TeV data is currently in progress and is expected to be completed shortly.

Primary authors

Prof. Akram Khan (Brunel University (GB)) Gregory Heath (University of Bristol (GB)) Jeson Abe Jacob (University of Bristol (GB)) Dr Joel Goldstein (University of Bristol (GB)) Dr Lukasz Kreczko (University of Bristol (GB)) Philip Hugh Symonds (Brunel University (GB)) Sergey Senkin (University of Bristol (GB))

Presentation Materials