411 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Kyoto UniversityJP12 papers
- Niigata UniversityJP10 papers
- Kyushu Dental UniversityJP7 papers
- Nagoya UniversityJP7 papers
- The University of TokyoJP4 papers
- Kavli Institute for the Physics and Mathematics of the UniverseJP3 papers
- Kagoshima UniversityJP2 papers
- University of Chinese Academy of SciencesCN2 papers
- Yukawa Institute for Theoretical PhysicsJP2 papers
- ARC Centre of Excellence for All-sky AstrophysicsAU1 paper
- Arizona State UniversityUS1 paper
- Astronomical Institute of the Slovak Academy of SciencesSK1 paper
21 papers
Holonomy-based Diagnostic of Strain Compatibility in Birefringence Imaging of Stress-induced Ferroelectric SrTiO
Hirotaka Manaka, Kazuma Seike, Yoko Miura
We introduce a holonomy-based geometric diagnostic for birefringence-derived director fields and apply it to stress-induced ferroelectric SrTiO. Treating the director as a line…
Searching optimal scales for reconstructing cosmological initial conditions using convolutional neural networks
Koichiro Nakashima, Kiyotomo Ichiki, Atsushi J. Nishizawa +1
Reconstructing the initial density field of the Universe from the late-time matter distribution is a nontrivial task with implications for understanding structure formation in cosm…
Square Kilometre Array Science Data Challenge 3a: foreground removal for an EoR experiment
A. Bonaldi, P. Hartley, R. Braun +179
We present and analyse the results of the Science data challenge 3a (SDC3a, https://sdc3.skao.int/challenges/foregrounds), an EoR foreground-removal community-wide exercise organis…
Survival of Gas in Subhalos and Its Impact on the 21 cm Forest Signals: Insights from Hydrodynamic Simulations
Genki Naruse, Kenji Hasegawa, Kenji Kadota +2
Understanding the survival of gas within subhalos under various astrophysical processes is crucial for elucidating cosmic structure formation and evolution. We study the resilience…
Subhalo abundance matching using progenitor mass at varying redshift: Two modes of stellar mass growth imprinted into the Subaru HSC galaxy clustering
Shogo Masaki, Daichi Kashino, Shogo Ishikawa +1
We propose a novel subhalo abundance matching (SHAM) model that uses the virial mass of the main progenitor of each (sub)halo as a proxy of the galaxy stellar mass $…
Magnetic order in the chemically-substituted frustrated antiferromagnet CsCrF
Shohei Hayashida, Masato Hagihala, Maxim Avdeev +3
The effect of chemical substitution on the ground state of the geometrically frustrated antiferromagnet CsCrF has been investigated through a neutron powder diffraction experim…
Impacts of pre-initial conditions on anisotropic separate universe simulations: a boosted tidal response in the epoch of reionization
Shogo Masaki, Takahiro Nishimichi, Masahiro Takada
To generate initial conditions for cosmological -body simulations, one needs to prepare a uniform distribution of simulation particles, so-called the pre-initial condition (pre-…
Anisotropic separate universe simulations
Shogo Masaki, Takahiro Nishimichi, Masahiro Takada
The long-wavelength coherent overdensity and tidal force, which are not direct observables for a finite-volume survey, affect time evolution of cosmic structure formation and there…
Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events
Hiroko Niikura, Masahiro Takada, Shuichiro Yokoyama +2
We constrain the abundance of primordial black holes (PBH) using 2622 microlensing events obtained from 5-years observations of stars in the Galactic bulge by the Optical Gravitati…
Quark-Pauli effects in three octet-baryons
C. Nakamoto, Y. Suzuki
To sustain a neutron star with about two times the solar mass, multi baryons including hyperons are expected to produce repulsive effects in the interior of its high baryon-density…
Fixed point property for a CAT(0) space which admits a proper cocompact group action
Tetsu Toyoda
We prove that if a geodesically complete space admits a proper cocompact isometric action of a group, then the Izeki-Nayatani invariant of is less than $1…
On a generalization of distance sets
Hiroshi Nozaki, Masashi Shinohara
A subset in the -dimensional Euclidean space is called a -distance set if there are exactly distinct distances between two distinct points in and a subset is…
Baryon-baryon interactions in the SU6 quark model and their applications to light nuclear systems
Y. Fujiwara, Y. Suzuki, C. Nakamoto
Interactions between the octet-baryons (B8) in the spin-flavor SU6 quark model are investigated in a unified coupled-channels framework of the resonating-group method (RGM). The in…
Quark-Model Baryon-Baryon Interaction and its Applications to Hypernuclei
Y. Fujiwara, C. Nakamoto, Y. Suzuki +2
The quark-model baryon-baryon interaction fss2, proposed by the Kyoto-Niigata group, is a unified model for the complete baryon octet (B_8=N, Lambda, Sigma and Xi), which is formul…
Interactions between Octet Baryons in the SU_6 Quark model
Y. Fujiwara, M. Kohno, C. Nakamoto +1
The baryon-baryon interactions for the complete baryon octet (B_8) are investigated in a unified framework of the resonating-group method, in which the spin-flavor SU_6 quark-model…
A Realistic Description of Nucleon-Nucleon and Hyperon-Nucleon Interactions in the SU_6 Quark Model
Y. Fujiwara, T. Fujita, M. Kohno +2
We upgrade a SU_6 quark-model description for the nucleon-nucleon and hyperon-nucleon interactions by improving the effective meson-exchange potentials acting between quarks. For t…
G-Matrix Equation in the Resonating-Group Method
Yoshikazu Fujiwara, Michio Kohno, Choki Nakamoto +1
The G-matrix equation is most straightforwardly formulated in the resonating-group method if the quark-exchange kernel is directly used as the driving term for the infinite sum of…
Study of Light Lambda- and Lambda Lambda-Hypernuclei with the Stochastic Variational Method and Effective Lambda N Potentials
Hidekatsu Nemura, Yasuyuki Suzuki, Yoshikazu Fujiwara +1
We first determine the Lambda-N S-wave phase shifts so as to reproduce the experimental Lambda separation energies of A=3, 4 Lambda-hypernuclei, and then construct three phase-equi…
Lippmann-Schwinger Resonating-Group Formalism for NN and YN Interactions in an SU6 Quark Model
Yoshikazu Fujiwara, Michio Kohno, Tadashi Fujita +2
We formulate a Lippmann-Schwinger-type resonating-group equation to calculate invariant amplitudes of the quark-model baryon-baryon interaction. When applied to our recent SU6 quar…
Hyperon Single-Particle Potentials Calculated from SU6 Quark-Model Baryon-Baryon Interactions
M. Kohno, Y. Fujiwara, T. Fujita +2
Using the SU6 quark-model baryon-baryon interaction recently developed by the Kyoto-Niigata group, we calculate NN, Lambda N and Sigma N G-matrices in ordinary nuclear matter. This…
Single-Particle Spin-Orbit Strengths of the Nucleon and Hyperons by SU6 Quark-Model
Y. Fujiwara, M. Kohno, T. Fujita +2
The quark-model hyperon-nucleon interaction suggests an important antisymmetric spin-orbit component. It is generated from a color analogue of the Fermi-Breit interaction dominatin…