5 papers
Minimal Scale-Invariant Dark Matter
Alexander Belyaev, Roman Pasechnik, Rishav Roshan +1
We study the minimal classically scale-invariant extension of the Standard Model, containing a single -stabilised real scalar singlet whose mass is not an independent…
Novel Multilepton Signatures from the Fermionic Portal to Vector Dark Matter
Alexander Belyaev, Manimala Chakraborti, Claire Shepherd-Themistocleous +1
We perform a collider study of a novel multilepton signature arising from pair production of heavy vector-like leptons followed by cascade decays through a dark sector. In the muon…
Higgs boson mass and thermal wino dark matter from Starobinsky supergravity with the MSSM
Daniel Frolovsky, Alexander Belyaev, Sergei V. Ketov
We propose a framework connecting cosmic microwave background (CMB) observables with high-energy particle phenomenology, based on Starobinsky supergravity coupled to the Minimal Su…
The Muonic Portal to Vector Dark Matter:connecting precision muon physics, cosmology, and colliders
Alexander Belyaev, Luca Panizzi, Nakorn Thongyoi +1
We present a comprehensive study of the Muonic Portal to Vector Dark Matter (MPVDM), a minimal extension of the Standard Model featuring a new gauge symmetry and vector-l…
Gravitational Waves from Dark Gauge Sectors
Alexander Belyaev, Mårten Bertenstam, João Gonçalves +3
We explore gravitational-wave (GW) signatures from a strong first-order phase transition in a non-Abelian dark sector, which naturally gives rise to vector dark matter (DM). We con…