515 citations · 4.7k across the 73 of their papers we have counts for
65 papers · 1 filter
Higgs Couplings at a Future Wakefield Collider
Katherine Fraser, Simon Knapen, Kevin Langhoff +1
We explore the potential of multiple possible future 10 TeV wakefield colliders to measure electroweak couplings of the Higgs boson. We find that the beam-beam interactions are not…
Bounds on axion-like particles from fully merged photons at the LHC
Simon Knapen
I show that, in the mass range , the strongest current bound on axion-like particles (ALPs) coupled to photons comes from very high energy $a…
Dark Matter Detection Using Phonon Sensing in Amorphous Materials
Itay M. Bloch, Simon Knapen, Xinran Li +2
We present a concept for a tabletop-scale detector with an amorphous target designed to search for dark matter absorption into phonon excitations. In crystalline materials, absorpt…
Searches for electroweak states at future plasma wakefield colliders
So Chigusa, Simon Knapen, Toby Opferkuch +3
We quantify the discovery potential of future multi-TeV plasma wakefield colliders for new electroweak multiplets. We include beam-beam effects through realistic luminosity spectra…
Spin-Dependent Scattering of Sub-GeV Dark Matter: Models and Constraints
Stefania Gori, Simon Knapen, Tongyan Lin +2
We calculate the scattering rate of sub-GeV dark matter in solid-state targets for spin-dependent dark matter -- nucleon interactions. For dark matter particles with mass below 100…
Broadband phonon production from axion absorption
Itay M. Bloch, Simon Knapen, Amalia Madden +1
We show that axion dark matter in the range meV 100 meV can incoherently excite phonons in crystal targets with unpolarised nuclear spins. This can occur thr…