Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider

J Alimena, J Beacham, M Borsato… - Journal of Physics G …, 2020 - iopscience.iop.org
Abstract Particles beyond the Standard Model (SM) can generically have lifetimes that are
long compared to SM particles at the weak scale. When produced at experiments such as …

Les Houches 2011: physics at TeV colliders new physics working group report

G Brooijmans, B Gripaios, F Moortgat… - arXiv preprint arXiv …, 2012 - arxiv.org
We present the activities of the" New Physics" working group for the" Physics at TeV
Colliders" workshop (Les Houches, France, 30 May-17 June, 2011). Our report includes new …

Displaced vertices as probes of sterile neutrino mixing at the LHC

G Cottin, JC Helo, M Hirsch - Physical Review D, 2018 - APS
We investigate the reach at the LHC to probe light sterile neutrinos with displaced vertices.
We focus on sterile neutrinos N with masses m N∼(5–30) GeV that are produced in rare …

Searches for light sterile neutrinos with multitrack displaced vertices

G Cottin, JC Helo, M Hirsch - Physical Review D, 2018 - APS
We study discovery prospects for long-lived sterile neutrinos at the LHC with multitrack
displaced vertices, with masses below the electroweak scale. We reinterpret current …

Singlet-doublet dark matter freeze-in: LHC displaced signatures versus cosmology

L Calibbi, L Lopez-Honorez, S Lowette… - Journal of High Energy …, 2018 - Springer
A bstract We study the Singlet-Doublet dark matter model in the regime of feeble couplings,
where the dark matter abundance is obtained via the freeze-in mechanism. As a …

Reinterpretation of LHC results for new physics: Status and recommendations after run 2

W Abdallah, S AbdusSalam, A Ahmadov, A Ahriche… - SciPost physics, 2020 - scipost.org
We report on the status of efforts to improve the reinterpretation of searches and
measurements at the LHC in terms of models for new physics, in the context of the LHC …

Majorana Higgses at colliders

M Nemevšek, F Nesti, JC Vasquez - Journal of High Energy Physics, 2017 - Springer
A bstract Collider signals of heavy Majorana neutrino mass origin are studied in the minimal
Left-Right symmetric model, where their mass is generated spontaneously together with the …

Gauge mediation at the LHC: status and prospects

S Knapen, D Redigolo - Journal of High Energy Physics, 2017 - Springer
A bstract We show that the predictivity of general gauge mediation (GGM) with TeV-scale
stops is greatly increased once the Higgs mass constraint is imposed. The most notable …

Search for long-lived heavy neutrinos at the LHC with a VBF trigger

J Jones-Pérez, J Masias, JD Ruiz-Álvarez - The European Physical …, 2020 - Springer
The charged current production of long-lived heavy neutrinos at the LHC can use a prompt
charged lepton for triggering the measurement of the process. However, in order to fully …

Natural twin neutralino dark matter

M Badziak, G Grilli di Cortona, K Harigaya - Physical Review Letters, 2020 - APS
Supersymmetric twin Higgs models have a discrete symmetry for which each standard
model particle and its supersymmetric partner have a corresponding state that transforms …