We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a
comprehensive survey of standard model (SM) extensions. LLPs are a common prediction of …

Despite the fact that dark matter constitutes one of the cornerstones of the standard
cosmological paradigm, its existence has so far only been inferred from astronomical …

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 …

This Report summarizes the results of the activities of the LHC Higgs Cross Section Working
Group in the period 2014–2016. The main goal of the working group was to present the state …

This paper describes the physics case for a new fixed target facility at CERN SPS. The SHiP
(search for hidden particles) experiment is intended to hunt for new physics in the largely …

A search for long-lived, massive particles predicted by many theories beyond the Standard
Model is presented. The search targets final states with large missing transverse momentum …

Long-lived particles (LLPs) are a common feature in many beyond the Standard Model
theories, including supersymmetry, and are generically produced in exotic Higgs decays …

A search is performed for a long-lived particle decaying into a final state that includes a pair
of muons of opposite-sign electric charge, using proton-proton collision data collected at s …

Many extensions of the Standard Model posit the existence of heavy particles with long
lifetimes. This article presents the results of a search for events containing at least one long …

Many extensions of the Standard Model predict the existence of charged heavy long-lived
particles, such as R-hadrons or charginos. These particles, if produced at the Large Hadron …