A muon collider would enable the big jump ahead in energy reach that is needed for a
fruitful exploration of fundamental interactions. The challenges of producing muon collisions …

A plausible explanation for the lightness of neutrino masses is that neutrinos are massless at
tree level, with their mass (typically Majorana) being generated radiatively at one or more …

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 …

A search for long-lived charginos produced either directly or in the cascade decay of heavy
prompt gluino states is presented. The search is based on proton–proton collision data …

A bstract Searches for resonances decaying into pairs of jets are performed using proton-
proton collision data collected at\(\sqrt {s}= 13\) TeV corresponding to an integrated …

We review scenarios in which the particles that account for the Dark Matter (DM) in the
Universe interact only through their couplings with the Higgs sector of the theory, the so …

Two related searches for phenomena beyond the standard model (BSM) are performed
using events with hadronic jets and significant transverse momentum imbalance. The results …

Despite decades of attempts to reveal its flaws, the Standard Model of particle physics (SM)
has withstood all experimental tests and its predictions are in excellent agreement with data …

A bstract We study the capabilities of a muon collider experiment to detect disappearing
tracks originating when a heavy and electrically charged long-lived particle decays via X+→ …

A search for charged leptons with large impact parameters using 139 fb− 1 of s= 13 TeV pp
collision data from the ATLAS detector at the LHC is presented, addressing a long-standing …