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 2015Show all

70 papers · 1 filter

cond-mat.str-el2015★ 3 cited

Hole- $s_{\pm}$ State Induced by Coexisting Ferro- and Aniferromagnetic and Aniferro-orbital Fluctuations in the Iron Pnictides

Jun Ishizuka, Takemi Yamada, Yuki Yanagi +1

The multi-orbital Hubbard model is investigated in order to clarify the electron correlation effects and the superconductivity in the iron-based superconductor. The renormalization…

hep-ph2015★ 2 cited

Basic oscillation measurables in the neutrino pair beam

T. Asaka, M. Tanaka, M. Yoshimura

It is shown that the vector current contribution of neutrino interaction with electrons in ion gives rise to oscillating component, which is absent for the axial-vector contributio…

hep-ex2015★ 86 cited

Study of e+e- => B() B()-bar pi+- at sqrt(s)=10.866 GeV

A. Garmash, A. Abdesselam, I. Adachi +158

We report the analysis of the three-body e+e- => B B-bar pi, B B*-bar pi, and B* B*-bar pi processes, including the first observation of the Zb+-(10610) =>[B B*-bar+c.c.]+- and Zb+…

hep-ex2015★ 43 cited

First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: $Λ_{c}^{+} \to p K^{+} π^{-}$

Belle Collaboration, S. B. Yang, K. Tanida +190

We report the first observation of the decay $Λ_{c}^{+} \to p K^{+} π^{-}$ using a 980 $f b^{- 1}$ data sample collected by the Belle detector at the KEKB asymmetric…

hep-ex2015★ 4 cited

First Observation of the Decay B0->psi(2S)pi0

V. Chobanova, J. Dalseno, C. Kiesling +180

We report a measurement of the $B^{0} \to ψ (2 S) π^{0}$ branching fraction based on the full $Υ (4 S)$ data set of $772 \times 1 0^{6}$ $B B ˉ$ pairs collected by the Belle detector…

hep-ex2015★ 19 cited

Search for the rare decay $D^{0} \to γ γ$ at Belle

Belle Collaboration, N. K. Nisar, G. B. Mohanty +180

We search for the rare radiative decay $D^{0} \to γ γ$ using a data sample with an integrated luminosity of $832 f b^{- 1}$ recorded by the Belle detector at the KEKB $e^{+} e^{-}$ asymme…

nucl-th2015★ 1 cited

Effects of pairing correlation on low-lying quasi-particle resonance in neutron drip-line nuclei

Yoshihiko Kobayashi, Masayuki Matsuo

We discuss effects of pairing correlation on quasi-particle resonance. We analyze in detail how the width of low-lying quasi-particle resonance is governed by the pairing correlati…

cond-mat.supr-con2015★ 1 cited

Thermodynamic Properties of Superconducting and Non-Superconducting Pr $_{2}$ Ba $_{4}$ Cu $_{7}$ O $_{15 - δ}$ Compounds with Metallic Double Chains

Takahisa Konno, Michiaki Matsukawa, Keisuke Sugawara +1

To examine the thermodynamic properties of Pr $_{2}$ Ba $_{4}$ Cu $_{7}$ O $_{15 - δ}$ compounds with metallic CuO double chains, we measured the specific heats of superconducting and non-s…

hep-ph2015★ 82 cited

Operator Constraints for Twist-3 Functions and Lorentz Invariance Properties of Twist-3 Observables

Koichi Kanazawa, Yuji Koike, Andreas Metz +2

We investigate the behavior under Lorentz tranformations of perturbative coefficient functions in a collinear twist-3 formalism relevant for high-energy observables including trans…

hep-ex2015★ 28 cited

Inclusive and exclusive measurements of $B$ decays to $χ_{c 1}$ and $χ_{c 2}$ at Belle

V. Bhardwaj, K. Miyabayashi, E. Panzenböck +196

We report inclusive and exclusive measurements for $χ_{c 1}$ and $χ_{c 2}$ production in $B$ decays. We measure $B (B \to χ_{c 1} X)$ = $(3.03 \pm 0.05(\mbox{stat}) \pm 0.24(\…

hep-ph2015★ 3 cited

Next-to-minimal $R$ -symmetric model: Dirac gaugino, Higgs mass and invisible width

Hiroaki Nakano, Masaki Yoshikawa

We study a singlet extension of the minimal $U (1)_{R}$ symmetric model, which shares nice properties of Dirac gauginos and $R$ -symmetric Higgs sector. At the same time, a superpotent…

hep-ex2015★ 19 cited

Observation of the decay $B_{s}^{0} \to K^{0} K^{0}$

Belle Collaboration, B. Pal, A. J. Schwartz +181

We measure the decay $B_{s}^{0} \to K^{0} K^{0}$ using data collected at the $Υ (5 S)$ resonance with the Belle detector at the KEKB $e^{+} e^{-}$ collider. The data sample used…

q-fin.GN2015★ 14 cited

Backbone of credit relationships in the Japanese credit market

Luca Marotta, Salvatore Miccichè, Yoshi Fujiwara +4

We detect the backbone of the weighted bipartite network of the Japanese credit market relationships. The backbone is detected by adapting a general method used in the investigatio…

hep-lat2015★ 1 cited

Analytic continuation of finite density QCD with heavy quarks in the strong coupling region

Shinji Ejiri, Hiroshi Yoneyama

Complex nature of finite density QCD with heavy quarks in the strong coupling region is studied. For this purpose, we consider the effective potential as a function of Polyakov lin…

hep-lat2015★ 3 cited

Towards the QCD equation of state at the physical point using Wilson fermion

T. Umeda, S. Ejiri, R. Iwami +1

We study the (2+1)-flavor QCD at nonzero temperatures using nonperturbatively improved Wilson quarks of the physical masses by the fixed scale approach. We perform physical point s…

hep-lat2015★ 12 cited

Exploring the nature of chiral phase transition in two-flavor QCD using extra heavy quarks

Shinji Ejiri, Ryo Iwami, Norikazu Yamada

Chiral phase transition of two flavor QCD at finite quark masses is known to be crossover except near the chiral limit, but it can turn to a first order transition when adding many…

hep-ph2015★ 1 cited

Probing heavy neutrinos in the COMET experiment

Takehiko Asaka, Atsushi Watanabe

We argue that the COMET experiment --- a dedicated experiment for the $μ$ - $e$ conversion search --- can be a powerful facility to search for heavy neutrinos in the mass range $1\,{…

hep-ex2015★ 132 cited

Measurement of the decay $B \to D ℓ ν_{ℓ}$ in fully reconstructed events and determination of the Cabibbo-Kobayashi-Maskawa matrix element $∣ V_{c b} ∣$

R. Glattauer, C. Schwanda, A. Abdesselam +178

We present a determination of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element $∣ V_{c b} ∣$ using the decay $B \to D ℓ ν_{ℓ}$ ( $ℓ = e, μ$ ) based on 711 fb $^{- 1}$ of $e^…

cond-mat.stat-mech2015★ 105 cited

Unveiling Dimensionality Dependence of Glassy Dynamics: 2D Infinite Fluctuation Eclipses Inherent Structural Relaxation

Hayato Shiba, Yasunori Yamada, Takeshi Kawasaki +1

By using large-scale molecular dynamics simulations, the dynamics of two-dimensional (2D) supercooled liquids turns out to be dependent on the system size, while the size dependenc…

hep-ex2015★ 19 cited

Study of $B^{0} \to ρ^{+} ρ^{-}$ decays and implications for the CKM angle $ϕ_{2}$

P. Vanhoefer, J. Dalseno, C. Kiesling +184

We present a measurement of the branching fraction and the longitudinal polarization fraction of $B^{0} \to ρ^{+} ρ^{-}$ decays, as well as the time-dependent $C P$ violating param…

hep-ph2015★ 18 cited

Hyperon polarization from the twist-3 distribution in the unpolarized proton-proton collision

Yuji Koike, Kenta Yabe, Shinsuke Yoshida

We investigate the transverse polarization of a hyperon produced in the high-energy unpolarized proton-proton collision, $pp \to Λ^{↑} X$ , based on the collinear twist-3 factori…

math.AP2015★ 4 cited

Asymptotic expansion of solutions to the drift-diffusion equation with fractional dissipation

Masakazu Yamamoto, Yuusuke Sugiyama

The initial-value problem for the drift-diffusion equation arising from the model of semiconductor device simulations is studied. The dissipation on this equation is given by the f…

nucl-th2015★ 18 cited

Constraining slope parameter of symmetry energy from nuclear structure

T. Inakura, H. Nakada

Four quantities deducible from nuclear structure experiments have been claimed to correlate to the slope parameter $L$ of the symmetry energy; the neutron skin thickness, the cross…

hep-ex2015★ 26 cited

Measurement of D0-D0bar mixing and search for CP violation in D0 -> K+K-, pi+pi- decays with the full Belle data set

Belle Collaboration

We report an improved measurement of D0-D0bar mixing and a search for CP violation in D0 decays to CP-even final states K+K- and pi+pi-. The measurement is based on the final Belle…

Hole-s±​ State Induced by Coexisting Ferro- and Aniferromagnetic and Aniferro-orbital Fluctuations in the Iron Pnictides

Basic oscillation measurables in the neutrino pair beam

Study of e+e- => B(*) B(*)-bar pi+- at sqrt(s)=10.866 GeV

First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: Λc+​→pK+π−

First Observation of the Decay B0->psi(2S)pi0

Search for the rare decay D0→γγ at Belle

Effects of pairing correlation on low-lying quasi-particle resonance in neutron drip-line nuclei

Thermodynamic Properties of Superconducting and Non-Superconducting Pr2​Ba4​Cu7​O15−δ​ Compounds with Metallic Double Chains

Operator Constraints for Twist-3 Functions and Lorentz Invariance Properties of Twist-3 Observables

Inclusive and exclusive measurements of B decays to χc1​ and χc2​ at Belle

Next-to-minimal R-symmetric model: Dirac gaugino, Higgs mass and invisible width

Observation of the decay Bs0​→K0K0

Backbone of credit relationships in the Japanese credit market

Analytic continuation of finite density QCD with heavy quarks in the strong coupling region

Towards the QCD equation of state at the physical point using Wilson fermion

Exploring the nature of chiral phase transition in two-flavor QCD using extra heavy quarks

Probing heavy neutrinos in the COMET experiment

Measurement of the decay B→Dℓνℓ​ in fully reconstructed events and determination of the Cabibbo-Kobayashi-Maskawa matrix element ∣Vcb​∣

Unveiling Dimensionality Dependence of Glassy Dynamics: 2D Infinite Fluctuation Eclipses Inherent Structural Relaxation

Study of B0→ρ+ρ− decays and implications for the CKM angle ϕ2​

Hyperon polarization from the twist-3 distribution in the unpolarized proton-proton collision

Asymptotic expansion of solutions to the drift-diffusion equation with fractional dissipation

Constraining slope parameter of symmetry energy from nuclear structure

Measurement of D0-D0bar mixing and search for CP violation in D0 -> K+K-, pi+pi- decays with the full Belle data set

Hole- $s_{\pm}$ State Induced by Coexisting Ferro- and Aniferromagnetic and Aniferro-orbital Fluctuations in the Iron Pnictides

Study of e+e- => B() B()-bar pi+- at sqrt(s)=10.866 GeV

First Observation of Doubly Cabibbo-Suppressed Decay of a Charmed Baryon: $Λ_{c}^{+} \to p K^{+} π^{-}$

Search for the rare decay $D^{0} \to γ γ$ at Belle

Thermodynamic Properties of Superconducting and Non-Superconducting Pr $_{2}$ Ba $_{4}$ Cu $_{7}$ O $_{15 - δ}$ Compounds with Metallic Double Chains

Inclusive and exclusive measurements of $B$ decays to $χ_{c 1}$ and $χ_{c 2}$ at Belle

Next-to-minimal $R$ -symmetric model: Dirac gaugino, Higgs mass and invisible width

Observation of the decay $B_{s}^{0} \to K^{0} K^{0}$

Measurement of the decay $B \to D ℓ ν_{ℓ}$ in fully reconstructed events and determination of the Cabibbo-Kobayashi-Maskawa matrix element $∣ V_{c b} ∣$

Study of $B^{0} \to ρ^{+} ρ^{-}$ decays and implications for the CKM angle $ϕ_{2}$