English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The sensitivity of top quark pair production at the Large Hadron Collider tothe presence and nature of an underlying Z' boson is studied, accounting forsix-fermion decay with full tree-level Standard Model ttbar interference andall intermediate particles allowed off-shell. Focus is placed on thelepton-plus-jets final state, emulating experimental conditions, includingkinematic requirements and top quark pair reconstruction in the presence ofmissing transverse energy and combinatorial ambiguity in jet-top assignment.Considering a resonance with mass of 4 TeV, and assuming 300 inverse fb ofproton-proton collisions with a centre of mass energy of 13 TeV data, acombination of forward-backward and top polarisation asymmetries are shown todistinguish Z' embedded by different classes of Grand-Unified-Theory-inspiredmodels. In combination with the differential cross section, they may be used toincrease the significance of the signal when tested against the Standard Model,as shown using a likelihood-based statistical test.

Discovering and profiling Z' bosons using asymmetry observables in top quark pair production with the lepton-plus-jets final state at the LHC