490 citations · 1.8k across the 42 of their papers we have counts for
42 papers
Toward High-Resolution Detection of Target Fragmentation: TEA-Sensitized NIT for Proton Therapy Applications
V. Boccia, T. Asada, A. Alexandrov +96
Nano Imaging Trackers (NIT) are fine-grained nuclear emulsions capable of tracking charged particles with sub-micrometric spatial resolution. The DAMON (Direct Measurement of Targe…
Measurement of 80-200 MeV/n O nuclear cross-section on Carbon and Polyethylene targets with the nuclear emulsion detector of the FOOT experiment
FOOT Collaboration, Giuliana Galati, Vincenzo Boccia +93
Accurate knowledge of nuclear fragmentation cross-sections is essential for optimizing charged particle therapy. In this study, conducted within the framework of the FOOT (Fragment…
Directional Sensitivity of the NEWSdm Experiment to Cosmic Ray Boosted Dark Matter
N. Y. Agafonova, A. Alexandrov, A. M. Anokhina +54
We present a study of a directional search for Dark Matter boosted forward when scattered by cosmic-ray nuclei, using a module of the NEWSdm experiment. The boosted Dark Matter flu…
Mineral Detection of Neutrinos and Dark Matter. A Whitepaper
Sebastian Baum, Patrick Stengel, Natsue Abe +66
Minerals are solid state nuclear track detectors - nuclear recoils in a mineral leave latent damage to the crystal structure. Depending on the mineral and its temperature, the dama…
Directional direct detection of light dark matter up-scattered by cosmic rays from direction of the Galactic center
Keiko I. Nagao, Satoshi Higashino, Tatsuhiro Naka +1
Dark matter with MeV scale mass is difficult to detect with standard direct search detectors. However, they can be searched for by considering the up-scattering of kinetic energies…
Updated constraints on sterile neutrino mixing in the OPERA experiment using a new identification method
N. Agafonova, A. Alexandrov, A. Anokhina +123
This paper describes a new identification method specifically designed to improve the low-energy () identification efficiency attained by enlarging…
Environmental sub-MeV neutron measurement at the Gran Sasso surface laboratory with a super-fine-grained nuclear emulsion detector
T. Shiraishi, S. Akamatsu, T. Naka +8
The measurement of environmental neutrons is particularly important in the search for new physics, such as dark matter particles, because neutrons constitute an often-irreducible b…
Development of New Tracking Detector with Fine-grained Nuclear Emulsion for sub-MeV Neutron Measurement
T. Shiraishi, I. Todoroki, T. Naka +3
In this study, we have developed a new sub-MeV neutron detector that has a high position resolution, energy resolution, directional sensitivity, and low background. The detector is…
Optical shape analysis based on discrete Fourier transform and second order moment calculation of the brightness distribution for the detection of sub-micron range low energy tracks
Atsuhiro Umemoto, Tatsuhiro Naka, Toshiyuki Nakano +3
To recognize sub-micron range low energy tracks recorded in a super fine grained nuclear emulsion (Nano Imaging Tracker), an elliptical fitting method was devised to analyze anisot…
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…
Measurement of ambient neutrons in an underground laboratory at Kamioka Observatory and future plan
Keita Mizukoshi, Ryosuke Taishaku, Keishi Hosokawa +7
Ambient neutrons are one of the most serious backgrounds for underground experiments in search of rare events. The ambient neutron flux in an underground laboratory of Kamioka Obse…
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…
Super resolution plasmonic imaging microscopy for submicron tracking emulsion detector
Atsuhiro Umemoto, Tatsuhiro Naka, Andrey Alexandrov +1
NIT is a super fine-grained nuclear emulsion which has a detection capability for ionizing particle with nanometric resolution and record the track by a line of silver nanograin wi…
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…
Electromagnetic effects induced by time-dependent axion field
Katsuhisa Taguchi, Tatsushi Imaeda, Tetsuya Hajiri +4
We studied the dynamics of the so-called -term, which exists in topological materials and is related to a hypothetical field predicted by Peccei-Quinn in particle physics, in a…
Final results of the OPERA experiment on appearance in the CNGS beam
OPERA Collaboration, N. Agafonova, A. Alexandrov +134
The OPERA experiment was designed to study oscillations in appearance mode in the CNGS neutrino beam. In this letter we report the final analysis of the full data sampl…
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…
Measurement of ambient neutrons in an underground laboratory at Kamioka Observatory
Keita Mizukoshi, Ryosuke Taishaku, Keishi Hosokawa +8
Ambient neutrons are one of the most serious backgrounds for underground experiments searching for rare events. The ambient neutron flux in an underground laboratory of Kamioka Obs…
Discrimination of anisotropy in dark matter velocity distribution with directional detectors
Keiko I. Nagao, Tomonori Ikeda, Ryota Yakabe +2
Directional detection of dark matter has sensitivity for both recoil energy and direction of nuclear recoil. It opens the way to measure local velocity distribution of dark matter.…
The development of super fine-grained nuclear emulsion
Takashi Asada, Tatsuhiro Naka, Ken-ichi Kuwabara +1
A nuclear emulsion with micronized crystals is required for the tracking detection of submicron ionizing particles, which are a target of dark matter detection and other methods. W…
Discovery potential for directional Dark Matter detection with nuclear emulsions
N. Agafonova, A. Aleksandrov, A. Anokhina +53
Direct Dark Matter searches are nowadays one of the most fervid research topics with many experimental efforts devoted to the search for nuclear recoils induced by the scattering o…
Readout technologies for directional WIMP Dark Matter detection
J. B. R. Battat, I. G. Irastorza, A. Aleksandrov +90
The measurement of the direction of WIMP-induced nuclear recoils is a compelling but technologically challenging strategy to provide an unambiguous signature of the detection of Ga…
NEWS: Nuclear Emulsions for WIMP Search
A. Aleksandrov, A. Anokhina, T. Asada +56
Nowadays there is compelling evidence for the existence of dark matter in the Universe. A general consensus has been expressed on the need for a directional sensitive detector to c…