Niigata University

output

19922026

most citedSciPy 1.0--Fundamental Algorithms for Scientific Computing in Python

40.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2017Show all

60 papers · 1 filter

hep-ex2017★ 21 cited

Search for $B^{-} \to μ^{-} ν ˉ_{μ}$ Decays at the Belle Experiment

Belle Collaboration, A. Sibidanov, K. E. Varvell +184

We report the result of a search for the decay $B^{-} \to μ^{-} ν ˉ_{μ}$ . The signal events are selected based on the presence of a high momentum muon and the topology of the rest of…

gr-qc2017★ 86 cited

Construction of KAGRA: an Underground Gravitational Wave Observatory

T. Akutsu, M. Ando, S. Araki +222

Major construction and initial-phase operation of a second-generation gravitational-wave detector KAGRA has been completed. The entire 3-km detector is installed underground in a m…

hep-ex2017★ 10 cited

Study of $K_{S}^{0}$ pair production in single-tag two-photon collisions

Belle Collaboration, M. Masuda, S. Uehara +185

We report a measurement of the cross section for $K_{S}^{0}$ pair production in single-tag two-photon collisions, $γ^{*} γ \to K_{S}^{0} K_{S}^{0}$ , for $Q^{2}$ up to 30 GeV $^{2}$ , where $Q^{2}$ is the…

hep-ex2017★ 2 cited

Search for light tetraquark states in $Υ (1 S)$ and $Υ (2 S)$ decays

Belle Collaboration, S. Jia, C. P. Shen +192

We search for the $J^{P C} = 0^{--}$ and $1^{+-}$ light tetraquark states with masses up to 2.46~GeV/ $c^{2}$ in $Υ (1 S)$ and $Υ (2 S)$ decays with data samples of $(102 \pm 2)$ million and…

hep-th2017★ 4 cited

Super Yang-Mills action from WZW-like open superstring field theory including the Ramond sector

Mitsuru Asada, Isao Kishimoto

In the framework of WZW-like open superstring field theory (SSFT) including the Ramond (R) sector whose action was constructed by Kunitomo and Okawa, we truncate the string fields…

hep-ex2017★ 40 cited

Observation of $Ξ_{c} (2930)^{0}$ and updated measurement of $B^{-} \to K^{-} Λ_{c}^{+} Λ ˉ_{c}^{-}$ at Belle

Belle Collaboration, Y. B. Li, C. P. Shen +178

We report the first observation of the $Ξ_{c} (2930)^{0}$ charmed-strange baryon with a significance greater than 5 $σ$ . The $Ξ_{c} (2930)^{0}$ is found in its decay to $K^{-} Λ_{c}^{+}$ in $…

hep-ex2017★ 16 cited

Search for $C P$ violation in the $D^{+} \to π^{+} π^{0}$ decay at Belle

Belle Collaboration, V. Babu, K. Trabelsi +196

We search for $C P$ violation in the charged charm meson decay $D^{+} \to π^{+} π^{0}$ , based on a data sample corresponding to an integrated luminosity of $921 f b^{- 1}$ collected…

hep-ph2017★ 17 cited

Neutrino CP violation and sign of baryon asymmetry in the minimal seesaw model

Yusuke Shimizu, Kenta Takagi, Morimitsu Tanimoto

We discuss the correlation between the CP violating Dirac phase of the lepton mixing matrix and the cosmological baryon asymmetry based on the leptogenesis in the minimal seesaw mo…

cond-mat.stat-mech2017

Phase Transitions for Cuboc Orders in Stacked Kagome Heisenberg Systems

Kouichi Seki, Kouichi Okunishi

Using the event-chain Monte Carlo (MC) algorithm, we investigate phase transitions of the stacked Kagome Heisenberg systems with classical vector spins including up to the 3rd-near…

hep-lat2017★ 15 cited

Energy-momentum tensor correlation function in Nf=2+1 full QCD at finite temperature

Yusuke Taniguchi, Shinji Ejiri, Kazuyuki Kanaya +4

We measure correlation functions of the nonperturbatively renormalized energy-momentum tensor in $N_{f} = 2 + 1$ full QCD at finite temperature by applying the gradient flow method both…

hep-ex2017★ 98 cited

Observation of Excited $Ω_{c}$ Charmed Baryons in $e^{+} e^{-}$ Collisions

Belle Collaboration, J. Yelton, I. Adachi +177

Using the entire Belle data sample of 980 $fb^{- 1}$ of $e^{+} e^{-}$ collisions, we present the results of a study of excited $Ω_{c}$ charmed baryons in the decay mode $Ξ_{c}^{+} K^{-}$ . W…

cs.NI2017★ 23 cited

Adaptive Beam-Frequency Allocation Algorithm with Position Uncertainty for Millimeter-Wave MIMO Systems

Rafail Ismayilov, Megumi Kaneko, Takefumi Hiraguri +1

Envisioned for fifth generation (5G) systems, millimeter-wave (mmWave) communications are under very active research worldwide. Although pencil beams with accurate beamtracking may…

gr-qc2017★ 53 cited

The status of KAGRA underground cryogenic gravitational wave telescope

KAGRA Collaboration, T. Akutsu, M. Ando +146

KAGRA is a 3-km interferometric gravitational wave telescope located in the Kamioka mine in Japan. It is the first km-class gravitational wave telescope constructed underground to…

math.AG2017★ 1 cited

Degree three unramified cohomology groups and Noether's problem for groups of order $243$

Akinari Hoshi, Ming-chang Kang, Aiichi Yamasaki

Let $k$ be a field and $G$ be a finite group acting on the rational function field $k (x_{g} : g \in G)$ by $k$ -automorphisms defined as $h (x_{g}) = x_{h g}$ for any $g, h \in G$ . We denote t…

math.AC2017

An algorithm for computing the Hilbert--Samuel multiplicities and reductions of zero-dimensional ideals of Cohen--Macaulay local rings

Takafumi Shibuta, Shinichi Tajima

In this paper, we present an algorithm for computing the minimal reductions of $m$ -primary ideals of Cohen--Macaulay local rings. Using this algorithm, we are able to co…

hep-ex2017★ 11 cited

Measurement of the tau Michel parameters $η ˉ$ and $ξ κ$ in the radiative leptonic decay $τ^{-} \to ℓ^{-} ν_{τ} ν ˉ_{ℓ} γ$

The Belle Collaboration, N. Shimizu, H. Aihara +460

We present a measurement of the Michel parameters of the $τ$ lepton, $η ˉ$ and $ξ κ$ , in the radiative leptonic decay $τ^{-} \to ℓ^{-} ν_{τ} ν ˉ_{ℓ} γ$ using 711~f$\math…

nucl-ex2017★ 39 cited

Evidence for Z=6 `magic number' in neutron-rich carbon isotopes

D. T. Tran, H. J. Ong, G. Hagen +37

The nuclear shell structure, which originates in the nearly independent motion of nucleons in an average potential, provides an important guide for our understanding of nuclear str…

hep-ex2017★ 31 cited

Measurements of the absolute branching fractions of $B^{+} \to X_{c c ˉ} K^{+}$ and $B^{+} \to D ˉ^{(*) 0} π^{+}$ at Belle

Y. Kato, T. Iijima, I. Adachi +183

We present the measurement of the absolute branching fractions of $B^{+} \to X_{c c ˉ} K^{+}$ and $B^{+} \to D ˉ^{(*) 0} π^{+}$ decays, using a data sample of $772\times…

cond-mat.supr-con2017★ 30 cited

Superconducting gap symmetry of the BiS $_{2}$ -based superconductor LaO $_{0.5}$ F $_{0.5}$ BiSSe elucidated through specific heat measurement

Naoki Kase, Yusuke Terui, Tomohito Nakano +1

In this study, the superconducting gap symmetry of LaO $_{0.5}$ F $_{0.5}$ BiSSe is elucidated through specific heat measurements with one single crystal of LaO $_{0.5}$ F $_{0.5}$ BiSSe.…

cond-mat.soft2017★ 17 cited

Connecting thermodynamic and dynamical anomalies of water-like liquid-liquid phase transition in the Fermi-Jagla model

Saki Higuchi, Daiki Kato, Daisuke Awaji +1

We present a study using molecular dynamics simulations based on the Fermi-Jagla potential model, which is the continuous version of the mono-atomic core-softened Jagla model [J. Y…

hep-ph2017★ 25 cited

Towards the minimal seesaw model via CP violation of neutrinos

Yusuke Shimizu, Kenta Takagi, Morimitsu Tanimoto

We study the minimal seesaw model, where two right-handed Majorana neutrinos are introduced, focusing on the CP violating phase. In addition, we take the trimaximal mixing pattern…

cond-mat.stat-mech2017★ 14 cited

Critical behavior of the two-dimensional icosahedron model

Hiroshi Ueda, Kouichi Okunishi, Roman Krčmár +3

In the context of a discrete analogue of the classical Heisenberg model, we investigate critical behavior of the icosahedron model, where the interaction energy is defined as the i…

hep-ex2017★ 232 cited

Measurement of the $τ$ lepton polarization and $R (D^{})$ in the decay $B ˉ \to D^{} τ^{-} ν ˉ_{τ}$ with one-prong hadronic $τ$ decays at Belle

S. Hirose, T. Iijima, I. Adachi +181

With the full data sample of $772 \times 1 0^{6}$ $B B ˉ$ pairs recorded by the Belle detector at the KEKB electron-positron collider, the decay $\bar{B} \rightarrow D^* τ^- \barν…

cond-mat.str-el2017★ 3 cited

Quasi-two-dimensional Fermi surfaces with localized $f$ electrons in the layered heavy-fermion compound CePt $_{2}$ In $_{7}$

K. Götze, Y. Krupko, J. A. N. Bruin +8

We report measurements of the de Haas-van Alphen effect in the layered heavy-fermion compound CePt $_{2}$ In $_{7}$ in high magnetic fields up to 35 T. Above an angle-dependent threshold…

Search for B−→μ−νˉμ​ Decays at the Belle Experiment

Construction of KAGRA: an Underground Gravitational Wave Observatory

Study of KS0​ pair production in single-tag two-photon collisions

Search for light tetraquark states in Υ(1S) and Υ(2S) decays