34 citations · 75 across the 19 of their papers we have counts for
23 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…
Direct-detection constraints on inelastic dark matter with a scalar mediator
I. V. Voronchikhin, D. V. Kirpichnikov
We phenomenologically calculate direct-detection constraints on inelastic dark matter (DM) for a scalar portal scenario with leptophilic couplings. The p-wave velocity suppression…
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…
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 operato…
Searching for Light Dark Matter and Dark Sectors with the NA64 experiment at the CERN SPS
Yu. M. Andreev, A. Antonov, M. A. Ayala Torres +49
Since its approval in 2016, NA64 has pioneered light dark matter (LDM) searches with electron, positron, muon, and hadron beams. The experiment has successfully met its primary obj…
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…
Examining scalar portal inelastic dark matter with lepton fixed target experiments
I. V. Voronchikhin, D. V. Kirpichnikov
Inelastic dark matter scenarios have attracted considerable attention in contemporary particle physics. In this study, we investigate the phenomenology of sub-GeV inelastic dark ma…
Proof of principle for a light dark matter search with low-energy positron beams at NA64
Yu. M. Andreev, A. Antonov, M. A. Ayala Torres +54
Thermal light dark matter (LDM) with particle masses in the 1 MeV - 1 GeV range could successfully explain the observed dark matter abundance as a relic from the primordial Univers…
The bremsstrahlung-like production of the massive spin-2 dark matter mediator
I. V. Voronchikhin, D. V. Kirpichnikov
The link between Standard Model (SM) particles and dark matter (DM) can be introduced via spin-2 massive mediator, G, that couples to photon and charged leptons. Moreover, in a med…
Implication of the Weizsacker-Williams approximation for the dark matter mediator production
I. V. Voronchikhin, D. V. Kirpichnikov
The simplified connection between Standard Model (SM) particles and light dark matter (LDM) can be introduced via spin-0 and spin-1 lepton-specific mediators. Moreover, in a mediat…
50 GeV in, nothing out: a sensitive probe of invisible and decays with NA64h
Yu. M. Andreev, A. Antonov, M. A. Ayala Torres +54
We present the first results from a proof-of-concept search for dark sectors via invisible decays of pseudoscalar and mesons in the NA64h experiment at the CERN SPS. Our n…
First constraints on the explanation of the muon anomaly from NA64- at CERN
Yu. M. Andreev, A. Antonov, D. Banerjee +58
The inclusion of an additional gauge symmetry would release the tension between the measured and the predicted value of the anomalous muon magnetic moment: this pa…
Development of the fully Geant4 compatible package for the simulation of Dark Matter in fixed target experiments
B. Banto Oberhauser, P. Bisio, A. Celentano +12
The search for new comparably light (well below the electroweak scale) feebly interacting particles is an exciting possibility to explain some mysterious phenomena in physics, amon…
Exploration of the Muon and Light Dark Matter explanations in NA64 with the CERN SPS high energy muon beam
Yu. M. Andreev, D. Banerjee, B. Banto Oberhauser +54
We report on a search for a new () vector boson performed at the NA64 experiment employing a high energy muon beam and a missing energy-momentum technique. Muons from…
Probing scalar, Dirac, Majorana and vector DM through spin-0 electron-specific mediator at the electron fixed-target experiments
I. V. Voronchikhin, D. V. Kirpichnikov
We discuss the thermal target curves of Majorana, Dirac, scalar and vector light dark matter (DM) that are associated with the freeze-out mechanism via the annihilation into $e^+e^…
Probing Light Dark Matter with positron beams at NA64
Yu. M. Andreev, A. Antonov, D. Banerjee +63
We present the results of a missing-energy search for Light Dark Matter which has a new interaction with ordinary matter transmitted by a vector boson, called dark photon $A^\prime…
Probing hidden sectors with a muon beam: implication of spin-0 dark matter mediators for muon anomaly and validity of the Weiszäcker-Williams approach
H. Sieber, D. V. Kirpichnikov, I. V. Voronchikhin +6
In addition to vector () type new particles extensively discussed previously, both CP-even () and CP-odd () spin-0 Dark Matter (DM) mediators can couple to muons and be pr…
Measurement of the intrinsic hadronic contamination in the NA64 high-purity beam at CERN
Yu. M. Andreev, D. Banerjee, B. Banto Oberhauser +65
In this study, we present the measurement of the intrinsic hadronic contamination at the CERN SPS H4 beamline configured to transport electrons and positrons at 100 GeV/c momentum.…
Resonant probing spin-0 and spin-2 dark matter mediators with fixed target experiments
I. V. Voronchikhin, D. V. Kirpichnikov
We discuss the mechanism to produce electron-specific dark matter mediators of spin-0 and spin-2 in the electron fixed target experiments such as NA64 and LDMX. The secondary posit…
Probing hidden spin-2 mediator of dark matter with NA64e, LDMX, NA64 and M
I. V. Voronchikhin, D. V. Kirpichnikov
The connection between Standard Model (SM) particles and dark matter (DM) can be introduced via hidden spin-2 massive mediator. In the present paper we consider the simplified benc…
Search for a New B-L Z' Gauge Boson with the NA64 Experiment at CERN
Yu. M. Andreev, D. Banerjee, B. Banto-Oberhauser +55
A search for a new gauge boson associated with (un)broken B-L symmetry in the keV-GeV mass range is carried out for the first time using the missing-energy technique in the NA…
Search for a light muon-philic with the NA64- experiment at CERN
Yu. M. Andreev, D. Banerjee, B. Banto Oberhauser +58
The extension of Standard Model made by inclusion of additional gauge symmetry can explain the difference between the measured and the predicted value of the muon…