272 citations · 926 across the 28 of their papers we have counts for
29 papers
First results on the search for the Galactic Center Excess in the sub-GeV band with the emulsion telescope in GRAINE 2023
Yuya Nakamura, Shigeki Aoki, Takashi Azuma +34
(Please check the paper for full abstract.) The Galactic Center Excess (GCE) is an unexplained excess of gamma-ray emission from the Galactic Center. The GRAINE experiment aims to…
First overnight balloon flight of the GRAINE 2023 emulsion gamma-ray telescope enabled by a large-scale pressure-vessel gondola
Hiroki Rokujo, Shigeki Aoki, Takashi Azuma +34
The Gamma-Ray Astro Imager with Nuclear Emulsion (GRAINE) project conducts precision observations of sub-GeV--GeV cosmic gamma rays using a balloon-borne nuclear-emulsion telescope…
Reconstruction of 400 GeV/c proton interactions with the SHiP-charm project
SHiP Collaboration
The SHiP-charm project was proposed to measure the associated charm production induced by 400 GeV/c protons in a thick target, including the contribution from cascade production. A…
New high-precision measurement system for electron-positron pairs from sub-GeV/GeV gamma-rays in the emulsion telescope
Yuya Nakamura, Shigeki Aoki, Tomohiro Hayakawa +27
The GRAINE project observes cosmic gamma-rays, using a balloon-borne emulsion-film-based telescope in the sub-GeV/GeV energy band. We reported in our previous balloon experiment in…
First measurement using a nuclear emulsion detector of the charged-current cross section on iron around the 1GeV energy region
H. Oshima, T. Matsuo, A. Ali +43
We have carried out charged-current interaction measurement on iron using an emulsion detector exposed to the T2K neutrino beam in the J-PARC neutrino facility. The data samp…
Sensitivity of the SHiP experiment to dark photons decaying to a pair of charged particles
SHiP Collaboration, C. Ahdida, A. Akmete +331
Dark photons are hypothetical massive vector particles that could mix with ordinary photons. The simplest theoretical model is fully characterised by only two parameters: the mass…
Measurement of the muon flux for the SHiP experiment
SHiP Collaboration
The SHiP experiment will search for very weakly interacting particles beyond the Standard Model which are produced in a 400 \GeV/ proton beam dump at the CERN SPS. About $10^{11…
First observation of a tau neutrino charged current interaction with charm production in the Opera experiment
N. Agafonova, A. Alexandrov, A. Anokhina +124
An event topology with two secondary vertices compatible with the decay of short-lived particles was found in the analysis of neutrino interactions in the Opera target. The observe…
Final results on neutrino oscillation parameters from the OPERA experiment in the CNGS beam
OPERA Collaboration, N. Agafonova, A. Alexandrov +124
The OPERA experiment has conclusively observed the appearance of tau neutrinos in the muon neutrino CNGS beam. Exploiting the OPERA detector capabilities, it was possible to isolat…
Latest results of the OPERA experiment on nu-tau appearance in the CNGS neutrino beam
N. Agafonova, A. Alexandrov, A. Anokhina +132
OPERA is a long-baseline experiment designed to search for oscillations in appearance mode. It was based at the INFN Gran Sasso laboratory (LNGS) and took data from 200…
Measurement of the cosmic ray muon flux seasonal variation with the OPERA detector
N. Agafonova, A. Alexandrov, A. Anokhina +125
The OPERA experiment discovered muon neutrino into tau neutrino oscillations in appearance mode, detecting tau leptons by means of nuclear emulsion films. The apparatus was also en…
Final results of the search for oscillations with the OPERA detector in the CNGS beam
OPERA Collaboration, N. Agafonova, A. Aleksandrov +130
The OPERA experiment has discovered the tau neutrino appearance in the CNGS muon neutrino beam, in agreement with the 3 neutrino flavour oscillation hypothesis. The OPERA neutrino…
First demonstration of gamma-ray imaging using balloon-borne emulsion telescope
Hiroki Rokujo, Shigeki Aoki, Kaname Hamada +30
We promote the precise gamma-ray observation project Gamma-Ray Astro-Imager with Nuclear Emulsion (GRAINE), which uses balloon-borne emulsion gamma-ray telescopes. The emulsion tel…
First demonstration of emulsion multi-stage shifter for accelerator neutrino experiment in J-PARC T60
K. Yamada, S. Aoki, S. Cao +47
We describe the first ever implementation of an emulsion multi-stage shifter in an accelerator neutrino experiment. The system was installed in the neutrino monitor building in J-P…
First neutrino event detection with nuclear emulsion at J-PARC neutrino beamline
T. Fukuda, S. Aoki, S. Cao +47
Precise neutrino--nucleus interaction measurements in the sub-multi GeV region are important to reduce the systematic uncertainty in future neutrino oscillation experiments. Furthe…
The active muon shield in the SHiP experiment
SHiP collaboration, A. Akmete, A. Alexandrov +229
The SHiP experiment is designed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/c proton beam dump at the CERN SPS. An ess…
Demonstration of polarization sensitivity of emulsion-based pair conversion telescope for cosmic gamma-ray polarimetry
Keita Ozaki, Satoru Takahashi, Shigeki Aoki +4
Linear polarization of high-energy gamma-rays (10 MeV-100 GeV) can be detected by measuring the azimuthal angle of electron-positron pairs and observing the modulation of the azimu…
Discovery of tau neutrino appearance in the CNGS neutrino beam with the OPERA experiment
OPERA Collaboration, N. Agafonova, A. Aleksandrov +139
The OPERA experiment was designed to search for oscillations in appearance mode, i.e. by detecting the -leptons produced in charged current interacti…
A facility to Search for Hidden Particles (SHiP) at the CERN SPS
SHiP Collaboration, M. Anelli, S. Aoki +233
A new general purpose fixed target facility is proposed at the CERN SPS accelerator which is aimed at exploring the domain of hidden particles and make measurements with tau neutri…
Limits on muon-neutrino to tau-neutrino oscillations induced by a sterile neutrino state obtained by OPERA at the CNGS beam
OPERA Collaboration, N. Agafonova, A. Aleksandrov +128
The OPERA experiment, exposed to the CERN to Gran Sasso beam, collected data from 2008 to 2012. Four oscillated Charged Current interaction candidates have been detecte…
Observation of nu_tau appearance in the CNGS beam with the OPERA experiment
OPERA Collaboration, N. Agafonova, A. Aleksandrov +145
The OPERA experiment is searching for nu_mu -> nu_tau oscillations in appearance mode i.e. via the direct detection of tau leptons in nu_tau charged current interactions. The evide…
Procedure for short-lived particle detection in the OPERA experiment and its application to charm decays
N. Agafonova, A. Anokhina, S. Aoki +135
The OPERA experiment, designed to perform the first observation of oscillations in appearance mode through the detection of the leptons produced in c…
Determination of the muon charge sign with the dipolar spectrometers of the OPERA experiment
OPERA Collaboration, N. Agafonova, A. Aleksandrov +141
The OPERA long-baseline neutrino-oscillation experiment has observed the direct appearance of in the CNGS beam. Two large muon magnetic spectrometers are used to identi…
Measurement of TeV atmospheric muon charge ratio with the full OPERA data
N. Agafonova, A. Anokhina, S. Aoki +134
The OPERA detector, designed to search for oscillations in the CNGS beam, is located in the underground Gran Sasso laboratory, a privileged location to study TeV-scal…