215 citations · 1.1k across the 23 of their papers we have counts for
25 papers
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…
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 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.…
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…
Measurement of the == transition in Muonium
G. Janka, B. Ohayon, I. Cortinovis +9
Muons are puzzling physicists since their discovery when they were first thought to be the meson predicted by Yukawa to mediate the strong force. The recent results at Fermilab on…
Prospects in the search for a new light boson with the NA64 experiment at the CERN SPS
H. Sieber, D. Banerjee, P. Crivelli +6
A light vector boson coupled to the second and third lepton generations through current with mass below 200 MeV provides a very viable explanation in terms of new ph…
Precision measurement of the Lamb shift in Muonium
B. Ohayon, G. Janka, I. Cortinovis +10
We report a new measurement of the Lamb shift in Muonium using microwave spectroscopy. Our result of MHz comprises an order of…
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…
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…
Particle physics applications of the AWAKE acceleration scheme
A. Caldwell, J. Chappell, P. Crivelli +11
The AWAKE experiment had a very successful Run 1 (2016-8), demonstrating proton-driven plasma wakefield acceleration for the first time, through the observation of the modulation o…
Search for a Hypothetical 16.7 MeV Gauge Boson and Dark Photons in the NA64 Experiment at CERN
D. Banerjee, V. E. Burtsev, A. G. Chumakov +45
We report the first results on a direct search for a new 16.7 MeV boson (X) which could explain the anomalous excess of e+e- pairs observed in the excited Be-8 nucleus decays. Due…
Search for vector mediator of Dark Matter production in invisible decay mode
NA64 Collaboration, D. Banerjee, V. E. Burtsev +41
A search is performed for a new sub-GeV vector boson () mediated production of Dark Matter () in the fixed-target experiment, NA64, at the CERN SPS. The , called dark ph…
Performance of Multiplexed XY Resistive Micromegas detectors in a high intensity beam
D. Banerjee, V. Burtsev, A. Chumakov +38
We present the performance of multiplexed XY resistive Micromegas detectors tested in the CERN SPS 100 GeV/c electron beam at intensities up to 3.3 10 e/(s…
High purity 100 GeV electron identification with synchrotron radiation
E. Depero, D. Banerjee, V. Burtsev +36
In high energy experiments such as active beam dump searches for rare decays and missing energy events, the beam purity is a crucial parameter. In this paper we present a technique…