369 citations · 1.2k across the 44 of their papers we have counts for
44 papers
Development of Neutron Interferometer using Multilayer Mirrors and Measurements of Neutron-Nuclear Scattering Length with Pulsed Neutron Source
Takuhiro Fujiie, Masahiro Hino, Takuya Hosobata +6
This study entailed the successful deployment of a novel neutron interferometer that utilizes multilayer mirrors. The apparatus facilitates a precise evaluation of the wavelength d…
Displacement-noise-free interferometeric gravitational-wave detector using unidirectional neutrons with four speeds
Shoki Iwaguchi, Atsushi Nishizawa, Yanbei Chen +11
For further gravitational wave (GW) detections, it is significant to invent a technique to reduce all kinds of mirror displacement noise dominant at low frequencies for ground-base…
The Precision nEDM Measurement with UltraCold Neutrons at TRIUMF
Ryohei Matsumiya, Hiroaki Akatsuka, Chris P. Bidinosti +45
The TRIUMF Ultra-Cold Advanced Neutron (TUCAN) collaboration aims at a precision neutron electric dipole moment (nEDM) measurement with an uncertainty of $10^{-27}\,e\cdot\mathrm{c…
Displacement-noise-free neutron interferometer for gravitational wave detection using a single Mach-Zehnder configuration
Shoki Iwaguchi, Atsushi Nishizawa, Yanbei Chen +10
The improvement of sensitivity to gravitational waves (GWs) at lower frequencies is still challenging on account of displacement noise. One of the solutions is the neutron displace…
Neutron displacement noise-free interferometer for gravitational-wave detection
Atsushi Nishizawa, Shoki Iwaguchi, Yanbei Chen +10
An interferometer design that cancels all displacement noises of its test masses and maintains a gravitational-wave (GW) signal by combining multiple detector signals is called a d…
Measurement of nuclear spin relaxation time in lanthanum aluminate for development of polarized lanthanum target
K. Ishizaki, H. Hotta, I. Ide +10
The nuclear spin-lattice relaxation time () of lanthanum and aluminum nuclei in a single crystal of lanthanum aluminate doped with neodymium ions is studied to estimate the fe…
Pendellösung Interferometry Probes the Neutron Charge Radius, Lattice Dynamics, and Fifth Forces
Benjamin Heacock, Takuhiro Fujiie, Robert W. Haun +11
Structure factors describe how incident radiation is scattered from materials such as silicon and germanium and characterize the physical interaction between the material and scatt…
Energy dependent angular distribution of individual -rays in the La(, )La* reaction
T. Okudaira, S. Endo, H. Fujioka +14
Neutron energy-dependent angular distributions were observed for individual -rays from the 0.74 eV p-wave resonance of La+ to several lower excited states of …
Measurement of rays from LiF tile as an inner wall of a neutron-decay detector
J. Koga, S. Ieki, A. Kimura +12
A neutron lifetime measurement conducted at the Japan Proton Accelerator Research Complex (J-PARC) is counting the number of electrons from neutron decays with a time projection ch…
Neutron lifetime measurement with pulsed cold neutrons
K. Hirota, G. Ichikawa, S. Ieki +26
The neutron lifetime has been measured by comparing the decay rate with the reaction rate of He nuclei of a pulsed neutron beam from the spallation neutron source at the Japan…
New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the European Spallation Source
A. Addazi, K. Anderson, S. Ansell +92
The violation of Baryon Number, , is an essential ingredient for the preferential creation of matter over antimatter needed to account for the observed baryon asymmetr…
Transverse asymmetry of rays from neutron-induced compound states of
T. Yamamoto, T. Okudaira, S. Endo +17
A correlation term in the reaction has been studied utilizing epithermal polarized neutrons and germanium det…
Contributions to the 36th International Cosmic Ray Conference (ICRC 2019) of the JEM-EUSO Collaboration
G. Abdellaoui, S. Abe, J. H. Adams +309
Compilation of papers presented by the JEM-EUSO Collaboration at the 36th International Cosmic Ray Conference (ICRC), held July 24 through August 1, 2019 in Madison, Wisconsin.
Neutron spin dynamics in polarized targets
Vladimir Gudkov, Hirohiko M. Shimizu
We present neutron elastic scattering amplitude for arbitrary polarized target in irreducible spherical tensor representation. The general approach for the description of neutron s…
Measurement of the total neutron scattering cross section ratios of noble gases of natural isotopic composition using a pulsed neutron beam
Christopher C. Haddock, Masayuki Hiromoto, Katsuya Hirota +8
Precision measurements of slow neutron cross sections with atoms have several scientific applications. In particular the n-He s-wave scattering length is important to know bo…
Improved determination of thermal cross section of 14N(n,p)14C for the neutron lifetime measurement
R. Kitahara, K. Hirota, S. Ieki +21
In a neutron lifetime measurement at the Japan Proton Accelerator Complex, the neutron lifetime is calculated by the neutron decay rate and the incident neutron flux. The flux is o…
First ultracold neutrons produced at TRIUMF
S. Ahmed, E. Altiere, T. Andalib +50
We installed a source for ultracold neutrons at a new, dedicated spallation target at TRIUMF. The source was originally developed in Japan and uses a superfluid-helium converter co…
First observations of speed of light tracks by a fluorescence detector looking down on the atmosphere
G. Abdellaoui, S. Abe, J. H. Adams +311
EUSO-Balloon is a pathfinder mission for the Extreme Universe Space Observatory onboard the Japanese Experiment Module (JEM-EUSO). It was launched on the moonless night of the 25$^…
Observation of Pendellösung Fringes by Using Pulsed Neutrons
Shigeyasu Itoh, Masaya Nakaji, Yuya Uchida +2
Pendellösung interference fringes of a single silicon crystal were observed by using pulsed cold neutrons. The nuclear scattering length of silicon was obtained as (4.159\pm0.003(s…
Non-strange Dibaryon Resonances Observed in the Reaction
T. Ishikawa, H. Fujimura, H. Fukasawa +34
Coherent double neutral-pion photoproduction on the deuteron, {}, has been experimentally studied at incident photon energies ranging from 0.75 to 1.15 GeV. T…
A Cold/Ultracold Neutron Detector using Fine-grained Nuclear Emulsion with Spatial Resolution less than 100 nm
N. Naganawa, T. Ariga, S. Awano +9
A new type of cold/ultracold neutron detector that can realize a spatial resolution of less than 100 nm was developed using nuclear emulsion. The detector consists of a fine-graine…
A Search for Possible Long Range Spin Dependent Interactions of the Neutron From Exotic Vector Boson Exchange
Christopher C. Haddock, Joseph Amadio, Eamon Anderson +26
We present a search for possible spin dependent interactions of the neutron with matter through exchange of spin 1 bosons with axial vector couplings as envisioned in possible exte…
Fundamental physics activities with pulsed neutron at J-PARC(BL05)
Kenji Mishima, Shogo Awano, Yasuhiro Fuwa +37
"Neutron Optics and Physics (NOP/ BL05)" at MLF in J-PARC is a beamline for studies of fundamental physics. The beamline is divided into three branches so that different experiment…
Post-Newtonian effects of Dirac particle in curved spacetime - III : the muon g-2 in the Earth's gravity
Takahiro Morishima, Toshifumi Futamase, Hirohiko M. Shimizu
The general relativistic effects to the anomalous magnetic moment of muons moving in the Earth's gravitational field have been examined. The Dirac equation generalized to include t…