Simulation of sextet diquark production

Abstract

We present a method for simulating the production and decay of particles in the sextet representation of SU(3) C including the simulation of QCD radiation. Results from the Monte Carlo simulation of sextet diquark production at the LHC including both resonant and pair production are presented. We include limits on resonant diquark production from recent ATLAS results and perform the first simulation studies of the less model dependent pair production mechanism.

Antideuteron limits on decaying dark matter with a tuned formation model

“…The authors of Ref. [30] have demonstrated how re-tuning hadronization parameters can be used to improve the physics description for a particular process (Higgs production), and to determine the underlying uncertainty from the tuning of these parameters. In the following section we will proceed by re-tuning a selection of the Herwig++ hadronization parameters in order to be able to simulate antideuteron production more consistently.…”

Supersymmetry and generic BSM models in Pythia 8

“…We note that a more complete treatment of the radiation and phenomenology of sextet diquarks was published while this manuscript was in preparation, see [37].…”

LHC dijet constraints on double beta decay

“…Moreover, for estimating the future sensitivities, we make use of the fit of the SM dijet distribution fitted to a Monte Carlo simulation as given in ref. [37]. We then have estimated future limits coming from dijet searches for an assumed luminosity of L = 300 fb −1 .…”

“…As in the LR symmetric case we have used the cross section σ(pp → S DQ ) and the Br(S DQ → jj) to calculate current and future limits from dijet searches, using the upper limits on production cross sections times branching ratio from dijet searches [23]. For estimating future sensitivities we use the estimated QCD backgrounds from the Monte Carlo simulation [37].…”