215 citations · 1.1k across the 32 of their papers we have counts for
31 papers · 1 filter
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…
A search for the dark photon in the OKA experiment
The OKA Collaboration, A. S. Sadovsky, A. P. Filin +35
A search for the massless dark photon in the decay is performed with the OKA detector exposed to 17.7 GeV/c RF separated secondary beam of the…
High efficiency veto hadron calorimeter in the NA64 experiment at CERN
Yu. M. Andreev, A. Antonov, M. A. Ayala Torres +53
NA64 is a fixed-target experiment at the CERN SPS designed to search for Light particle Dark Matter (LDM) candidates with masses in the sub-GeV range. During the 2016-2022 runs, th…
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…
Shedding light on Dark Sectors with high-energy muons at the NA64 experiment at the CERN SPS
Yu. M. Andreev, D. Banerjee, B. Banto Oberhauser +54
A search for Dark Sectors is performed using the unique M2 beam line at the CERN Super Proton Synchrotron. New particles () could be produced in the bremsstrahlung-like reaction…
Technical Design Report of the Spin Physics Detector at NICA
The SPD Collaboration, V. Abazov, V. Abramov +411
The Spin Physics Detector collaboration proposes to install a universal detector in the second interaction point of the NICA collider under construction (JINR, Dubna) to study the…
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…
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…
Observation of decay
S. N. Filippov, E. N. Gushchin, A. A. Khudyakov +29
The decay is observed by the OKA collaboration. The branching ratio is measured to be . The branching…
Searches for the light invisible axion-like particle in decay
A. S. Sadovsky, A. P. Filin, S. A. Akimenko +31
A high statistics data sample of the decays is recorded by the OKA collaboration. A missing mass analysis is performed to search for a light invisible pseudoscalar axion-li…
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…
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.…
Measurement of T-odd asymmetry in radiative K+ -> pi0 e+ nu gamma decay using OKA detector
A. Yu. Polyarush, S. A. Akimenko, A. V. Artamonov +32
The paper presents a measurement of the T-odd correlation in radiation decay \boldmath performed on the installation of the 101200 candidate e…
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…
Improved exclusion limit for light dark matter from annihilation in NA64
Yu. Andreev, D. Banerjee, J. Bernhard +55
The current most stringent constraints for the existence of sub-GeV dark matter coupling to Standard Model via a massive vector boson were set by the NA64 experiment for…
Probing the explanation of the muon (g-2) anomaly and thermal light dark matter with the semi-visible dark photon channel
C. Cazzaniga, P. Odagiu, E. Depero +55
We report the results of a search for a new vector boson () decaying into two dark matter particles of different mass. The heavier particle subsequently decays…
Search for pseudoscalar bosons decaying into pairs in the NA64 experiment at the CERN SPS
Yu. M. Andreev, D. Banerjee, J. Bernhard +52
We report the results of a search for a light pseudoscalar particle that couples to electrons and decays to performed using the high-energy CERN SPS H4 electron beam.…
Constraints on New Physics in the Electron g-2 from a Search for Invisible Decays of a Scalar, Pseudoscalar, Vector, and Axial Vector
Yu. M. Andreev, D. Banerjee, J. Bernhard +49
We performed a search for a new generic boson, which could be a scalar (), pseudoscalar (), vector () or an axial vector () particle produced in the 100 GeV electro…
Conceptual design of the Spin Physics Detector
V. M. Abazov, V. Abramov, L. G. Afanasyev +291
The Spin Physics Detector, a universal facility for studying the nucleon spin structure and other spin-related phenomena with polarized proton and deuteron beams, is proposed to be…
Study of decay with OKA setup
A. Yu. Polyarush, V. A. Duk, S. N. Filippov +34
Results of a study of the decay at OKA setup are presented. More than 32000 events of this decay are observed. The differential spectra over the ph…
Hunting down the X17 boson at the CERN SPS
E. Depero, Yu. M. Andreev, D. Banerjee +53
Recently, the ATOMKI experiment has reported new evidence for the excess of events with a mass 17 MeV in the nuclear transitions of He, that they previously obs…
Improved limits on a hypothetical X(16.7) boson and a dark photon decaying into pairs
D. Banerjee, J. Bernhard, V. E. Burtsev +51
The improved results on a direct search for a new X(16.7 MeV) boson which could explain the anomalous excess of pairs observed in the excited 8Be nucleus decays ("Berilliu…
Dark matter search in missing energy events with NA64
D. Banerjee, V. E. Burtsev, A. G. Chumakov +48
A search for sub-GeV dark matter production mediated by a new vector boson , called dark photon, is performed by the NA64 experiment in missing energy events from 100 GeV elect…