12 papers
Improved limits on a new in scenarios with the NA64 experiment at CERN
The NA64 Collaboration, Yu. M. Andreev, A. Antonov +53
Extensions of the Standard Model featuring an additional gauge symmetry provide a compelling framework linking the origin of neutrino masses to possible dark matter ca…
Prospects of boosted magnetic dipole inelastic fermion dark matter at ILC-BDX
I. V. Voronchikhin, D. V. Kirpichnikov
In this work, we investigate the projected sensitivity of the Beam-Dump eXperiment at the International Linear Collider (ILC-BDX) to inelastic fermionic dark matter coupled to the…
Direct-detection constraints on inelastic dark matter with a scalar mediator
I. V. Voronchikhin, D. V. Kirpichnikov
We calculate direct detection constraints on inelastic dark matter (DM) for a scalar portal scenario with leptophilic couplings. The p-wave velocity suppression of the annihilation…
Missing energy signatures of inelastic magnetic dipole DM at NA64e
Sergei N. Gninenko, N. V. Krasnikov, I. V. Voronchikhin +1
Some extensions of the Standard Model consider inelastic dark matter (iDM) as an attractive candidate for sub-GeV DM of thermal origin that could be detected at modern accelerators…
Constraints on dark axion portal: missing energy and fermion EDMs
Sergei N. Gninenko, N. V. Krasnikov, Valery E. Lyubovitskij +4
We study a model in which a new interactions between the Standard Model (SM) photon and both the dark photon ( and an ALP () are described by the dark axion portal operat…
Probing millicharged particles with NA64 and LDMX
Sergei N. Gninenko, N. V. Krasnikov, Sergey Kuleshov +7
Millicharged particles emerge as compelling candidates in numerous theoretically well-motivated extensions of the Standard Model. These hypothetical particles, characterized by an…