From the 1 of 10 linked papers with an AI index.
10 papers
Charge-exchange reactions with pion and kaon beams in the NA64h experiment at CERN
Sergei N. Gninenko, Sergey Kuleshov, Valery E. Lyubovitskij +1
The paper presents calculations of charge‑exchange reaction cross sections for pion and kaon beams on nuclear targets, enabling searches for dark‑sector particles through invisible…
Nonlocal Portal to the Dark Sector
Sergey Kovalenko, Sergey Kuleshov, Valery E. Lyubovitskij +1
We propose a nonlocal realization of the Stueckelberg portal between the Standard Model and Dark Sector, which decouple in the local limit. This implies that the mediator, $U(1)_{D…
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…
Electron-muon conversion in nuclei and rare decays induced by LFV dark photon
Alexey S. Zhevlakov, Sergey Kuleshov, Valery E. Lyubovitskij +1
We study lepton-flavor violation (LFV) effects occurring in the conversion in nuclei and in the rare radiative decays of the and mesons with a…
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…
Probing leptophobic dark sector with a pseudoscalar portal in the NA64 experiment at CERN
Sergei N. Gninenko, Dmitry V. Kirpichnikov, Nikolai V. Krasnikov +3
We propose the possibility of discovering a light pseudoscalar particle , axion-like particle (ALP), interacting mainly with quarks using the electron and photon scattering reac…