12-18 June 2016
Lund University
Europe/Zurich timezone
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Profiling Z' bosons using charge asymmetry in top pair production with the lepton-plus-jets final state at the LHC

Not scheduled
20m
Lund University

Lund University

Sandgatan 2, Lund, Sweden
Poster Top Quark physics Poster Session

Speaker

Declan Millar (University of London (GB))

Description

We study the sensitivity of top pair production and six-fermion decay at the LHC to the presence and nature of an underlying Z' boson, accounting for full tree-level Standard Model interference, with all intermediate particles allowed off-shell. We concentrate on the lepton-plus-jets final state and simulate experimental considerations, including kinematic requirements and top quark pair reconstruction in the presence of missing transverse energy and combinatorial ambiguity in jet-top assignment. We focus on the differential mass spectra, as well as the charge asymmetry, demonstrating the use of this asymmetry in probing the coupling structure of a new neutral resonance, as well as cases in which the asymmetry forms a complementary discovery observable.

Primary author

Declan Millar (University of London (GB))

Co-authors

Francesco Spano (Royal Holloway, University of London (GB)) Lucio Cerrito (University of London (UK)) Stefano Moretti (STFC - Rutherford Appleton Lab. (GB))

Presentation Materials