A. Buckley, J. M. Butterworth, L. Corpe, M. Habedank, D. Huang, D. Yallup, M. Altakach, G. Bassman, I. Lagwankar, J. Rocamonde, H. Saunders, B. Waugh, G. Zilgalvis
SciPost Phys. Core 4, 013 (2021) ·
published 20 May 2021
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· pdf
Measurements at particle collider experiments, even if primarily aimed at
understanding Standard Model processes, can have a high degree of model
independence, and implicitly contain information about potential contributions
from physics beyond the Standard Model. The Contur package allows users to
benefit from the hundreds of measurements preserved in the Rivet library to
test new models against the bank of LHC measurements to date. This method has
proven to be very effective in several recent publications from the Contur
team, but ultimately, for this approach to be successful, the authors believe
that the Contur tool needs to be accessible to the wider high energy physics
community. As such, this manual accompanies the first user-facing version:
Contur v2. It describes the design choices that have been made, as well as
detailing pitfalls and common issues to avoid. The authors hope that with the
help of this documentation, external groups will be able to run their own
Contur studies, for example when proposing a new model, or pitching a new
search.
Jonathan M. Butterworth, Martin Habedank, Priscilla Pani, Andrius Vaitkus
SciPost Phys. Core 4, 003 (2021) ·
published 18 February 2021
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· pdf
Two Higgs doublet models with an additional pseudoscalar particle coupling to
the Standard Model and to a new stable, neutral particle, provide an attractive
and fairly minimal route to solving the problem of Dark Matter. They have been
the subject of several searches at the LHC. We study the impact of existing LHC
measurements on such models, first in the benchmark regions addressed by
searches and then after relaxing some of their assumptions and broadening the
parameter ranges considered. In each case we study how the new parameters
change the potentially visible signatures at the LHC, and identify which of
these signatures should already have had a significant impact on existing
measurements. This allows us to set some first constraints on a number of so
far unstudied scenarios.
