Automated Neutrino Jet and Top Jet Predictions at Next-to-Leading-Order with Parton Shower Matching in Effective Left-Right Symmetric Models

Mattelaer, Olivier;et.al.
(2016) Physical review. D, Particles and fields — p. 1 (1) (2016)

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Abstract
Hadronic decays of boosted resonances, e.g., top quark jets, at hadronic super colliders are frequent predictions in TeV-scale extensions of the Standard Model of Particle Physics. In such scenarios, accurate modeling of QCD radiation is necessary for trustworthy predic- tions. We present the automation of fully differential, next-to-lead ing-order (NLO) in QCD corrections with parton shower (PS) matching for an effective Lef t-Right Symmetric Model (LRSM) that features W ± R , Z R gauge bosons and heavy Majorana neutrinos N . Publicly available universal model files require remarkably fewer user inputs for predicting bench- mark collider processes than leading order LRSM constructions. We present predictions for inclusive W ± R , Z R production at the √ s = 13 TeV Large Hadron Collider (LHC) and a hypothetical future 100 TeV Very Large Hadron Collider (VLHC), a s well as inclusive N production for a hypothetical Large Hadron Electron Collider (LHe C). As a case study, we investigate at NLO+PS accuracy the properties of heavy neutrino (color-singlet) jets and top quark (color-triplet) jets from decays of high-mass W R bosons at the LHC. Contrary to top jets, we find that the kinematic properties of heavy neutrin os jets, and in particular jet mass, are resilient against the effects of parton showers and h ard QCD radiation. This suggests that in searches for neutrino jets, aggressive selectio n cuts that would otherwise be inappropriate for top jets can be imposed with minimal signal loss.
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Mattelaer, O., & et al. (2016). Automated Neutrino Jet and Top Jet Predictions at Next-to-Leading-Order with Parton Shower Matching in Effective Left-Right Symmetric Models. Physical review. D, Particles and fields, 1 (1). https://hdl.handle.net/2078.5/22530 (Original work published 2016)