https://doi.org/10.1140/epjc/s10052-019-6675-x
Regular Article - Theoretical Physics
LHC constraints and potential on resonant monotop production
1
Univ. Lyon, Université Claude Bernard Lyon 1, CNRS/IN2P3, UMR5822 IPNL, 69622, Villeurbanne, France
2
Institut Pluridisciplinaire Hubert Curien/Département Recherches Subatomiques, Université de Strasbourg/CNRS-IN2P3, 23 Rue du Loess, 67037, Strasbourg, France
3
Laboratoire de Physique Théorique et Hautes Énergies (LPTHE), UMR 7589, Sorbonne Université et CNRS, 4 place Jussieu, 75252, Paris Cedex 05, France
4
Institut Universitaire de France, 103 boulevard Saint-Michel, 75005, Paris, France
* e-mail: deandrea@ipnl.in2p3.fr
Received:
21
November
2018
Accepted:
9
February
2019
Published online:
25
February
2019
We discuss the phenomenology associated with a resonant monotop collider signal, i.e. a signal in which a single top quark is resonantly produced in association with missing energy through an s-channel scalar exchange. We study both the bounds originating from dedicated monotop searches performed by the ATLAS and CMS experiments, and the constraints associated with other processes that could be induced by a new physics context favouring monotop production at colliders. The latter class of constraints includes, in particular, the recasting of analyses from the LHC and the TeVatron. All theoretical calculations are performed at the next-to-leading order accuracy in QCD, and we finally combine all results to establish the present limits on the parameter space and test the relevance of the monotop signal at the LHC Run 2.
© The Author(s), 2019
