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 …

Exotic decays of the Standard Model (SM)-like Higgs boson into beyond-the-SM particles
are predicted in a wide range of well-motivated theories. The enormous samples of Higgs …

The discovery of the Higgs boson in 2012, by the ATLAS and CMS experiments, was a
success achieved with only a percent of the entire dataset foreseen for the LHC. It opened a …

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 …

We describe recent developments of the public computer code HiggsBounds. In particular,
these include the incorporation of LHC Higgs search results from Run 2 at a center-of-mass …

We investigate the LHC phenomenology of a model where the Standard Model (SM) scalar
sector is extended by two real scalar singlets. A\({{\mathbb {Z}} _2}\otimes {{\mathbb {Z}} …

A bstract A search for decays of pair-produced neutral long-lived particles (LLPs) is
presented using 139 fb− 1 of proton-proton collision data collected by the ATLAS detector at …

A bstract A novel search for exotic decays of the Higgs boson into pairs of long-lived neutral
particles, each decaying into a bottom quark pair, is performed using 139 fb− 1 of\(\sqrt {s}\) …

A bstract A search for the exotic decay of the Higgs boson to a pair of light pseudoscalars,
each of which subsequently decays into a pair of photons, is presented. The search uses …

A bstract This work investigates a simple, representative extension of the Standard Model
with a real scalar singlet and spontaneous Z 2 breaking, which allows for a strongly first …