N. Hayashi

Publication List Details

Period

1979 - 2008

Number

131

Co-Authors

Vortex core spectroscopy of chiral p-wave superconductors via odd-frequency pairing states (2008)

Tanuma, Y., Hayashi, N., Tanaka, Y., Golubov, A. A.

The local density of states (LDOS) around a vortex core is studied theoretically in terms of the odd-frequency (odd-omega) Cooper pairing induced around the center of the vortex core. We find a...

LDA + Negative U Solves a Puzzle of too Large Calculated Magnetic Moment in Iron-based Superconductor LaFeAsO_{1-x}F_x (2008)

Nakamura, H., Hayashi, N., Nakai, N., Machida, M.

A puzzle in the iron-based superconductor LaFeAsO_{1-x}F_x is that the magnetic moment obtained by first-principle electronic structure calculations is unexpectedly much larger than the...

Chapter 3: MHD stability, operational limits and disruptions (2008)

Hender, T. C., Wesley, J. C., Bialek, J., Bondeson, A., Boozer, A. H., Buttery, R. J., ...

Progress in the area of MHD stability and disruptions, since the publication of the 1999 ITER Physics Basis document (1999 Nucl. Fusion 39 2137-2664), is reviewed. Recent theoretical and experimental...

Josephson Effect between Conventional and Rashba Superconductors (2007)

Hayashi, N., Iniotakis, C., Machida, M., Sigrist, M.

We study the Josephson effect between a conventional s-wave superconductor and a non-centrosymmetric superconductor with Rashba spin-orbit coupling. Rashba spin-orbit coupling affects the Josephson...

Measurement of density correlations in pseudorapidity via charged particle multiplicity fluctuations in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV (2007)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., ...

Longitudinal density correlations of produced matter in Au+Au collisions at sqrt(s_NN)=200 GeV have been measured from the inclusive charged particle distributions as a function of pseudorapidity...

Evidence for a long-range component in the pion emission source in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV (2007)

Adler, S.S., Afanasiev, S., Aidala, C., N. Ajitanand, N., Akiba, Y., Alexander, J., ...

Emission source functions are extracted from correlation functions constructed from charged pions produced at mid-rapidity in Au+Au collisions at sqrt(s_NN)=200 GeV. The source parameters extracted...

High transverse momentum $\eta$ meson production in p+p, d+Au and Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV (2007)

S. Adler, S., Afanasiev, S., Aidala, C., N. Ajitanand, N., Akiba, Y., Alexander, J., ...

Inclusive transverse momentum spectra of eta mesons in the range p_T~2-12 GeV/c have been measured at mid-rapidity (|\eta| < 0,35) by the PHENIX experiment at RHIC in p+p, d+Au and Au+Au collisions...

Measurement of the mid-rapidity transverse energy distribution from $\sqrt{s_{NN}}=130$ GeV Au+Au collisions at RHIC (2007)

Adcox, K., S. Adler, S., N. Ajitanand, N., Akiba, Y., Alexander, J., Aphecetche, L., ...

The first measurement of energy produced transverse to the beam direction at RHIC is presented. The mid-rapidity transverse energy density per participating nucleon rises steadily with the number of...

Andreev bound states and tunneling characteristics of a non-centrosymmetric superconductor (2007)

Iniotakis, C., Hayashi, N., Sawa, Y., Yokoyama, T., May, U., Tanaka, Y., ...

The tunneling characteristics of planar junctions between a normal metal and a non-centrosymmetric superconductor like CePt3Si are examined. It is shown that the superconducting phase with mixed...

Dense-Medium Modifications to Di-Jet Hadron Pair Correlations in Au+Au Collisions at $\sqrt{s_{NN}}$ = 200 GeV (2006)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., ...

Azimuthal correlations of high-pT charged hadron pairs from (di-)jet-fragmentation are studied at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}}$ =200 GeV. The distribution of jet-associated...

Common Suppression Pattern of $\eta$ and $\pi^0$ Mesons at High Transverse Momentum in Au+Au Collisions at $\sqrt{S_NN}$ = 200 GeV (2006)

Adler, S. S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Alexander, J., Amirikas, R., ...

Inclusive transverse momentum spectra of eta mesons have been measured within p_T = 2-10 GeV/c at mid-rapidity by the PHENIX experiment in Au+Au collisions at sqrt(s_NN) = 200 GeV. In central Au+Au...

Measurement of the $\lambda$ and $\bar\lambda$ particles in Au+Au Collisions at $\sqrt{s_{NN}}$=130 GeV (2006)

Adcox, K., S. Adler, S., N. Ajitanand, N., Akiba, Y., Alexander, J., Aphecetche, L., ...

We present results on the measurement of lambda and lambda^bar production in Au+Au collisions at sqrt(s_NN)=130 GeV with the PHENIX detector at RHIC. The transverse momentum spectra were measured for...

Flow Measurements via Two-particle Azimuthal Correlations in Au + Au Collisions at $\sqrt{s_{NN}}$ = 130 GeV (2006)

Adcox, K., Adler, S.S., Ajitanand, N.N., Akiba, Y., Alexander, J., Aphecetche, L., ...

Two particle azimuthal correlation functions are presented for charged hadrons produced in Au + Au collisions at RHIC sqrt(s_NN) = 130 GeV. The measurements permit determination of elliptic flow...

Measurement of single electrons and implications for charm production in Au+Au collisions at $\sqrt {s_{NN}}$ = 130 GeV (2006)

Adcox, K., Adler, S.S., N. Ajitanand, N., Akiba, Y., Alexander, J., Aphecetche, L., ...

Transverse momentum spectra of electrons from Au+Au collisions at sqrt[sNN] = 130 GeV have been measured at midrapidity by the PHENIX experiment at the Relativistic Heavy Ion Collider. The spectra...

Midrapidity direct-photon production in $p+p$ collisions at $\sqrt{s}$ = 200 GeV (2006)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., ...

A measurement of direct photons in $p+p$ collisions at $\sqrt{s}$=200 GeV is presented. A photon excess above background from $\pi^0\rightarrow\gamma+\gamma$, $\eta\rightarrow\gamma+\gamma$, and...

Nuclear Modification of Electron Spectra and Implications for Heavy Quark Energy Loss in Au+Au Collisions at $\sqrt{s_{NN}}$=200 GeV (2006)

Adler, S. S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., ...

The PHENIX experiment has measured mid-rapidity transverse momentum spectra (0.4 < p_T < 5.0 GeV/c) of electrons as a function of centrality in Au+Au collisions at sqrt(s_NN)=200 GeV. Contributions...

Measurement of identified pi^0 and inclusive photon v_2 and implication to the direct photon production in sqrt(s_NN) = 200 GeV Au+Au collisions (2006)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., ...

The azimuthal distribution of identified pi^0 and inclusive photons has been measured in sqrt(s_NN) = 200 GeV Au+Au collisions with the PHENIX experiment at the Relativistic Heavy Ion Collider...

S-wave/spin-triplet order in superconductors without inversion symmetry: Li$_2$Pd$_3$B and Li$_2$Pt$_3$B (2005)

Yuan, H. Q., Agterberg, D. F., Hayashi, N., Badica, P., Vandervelde, D., Togano, K., ...

We investigate the order parameter of noncentrosymmetric superconductors Li$_2$Pd$_3$B and Li$_2$Pt$_3$B via the behavior of the penetration depth $\lambda(T)$. The low-temperature penetration depth...

Single Electrons from Heavy Flavor Decays in p+p Collisions at $\sqrt{s}$ = 200 GeV (2005)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., ...

The invariant differential cross section for inclusive electron production in p+p collisions at sqrt(s) = 200 GeV has been measured by the PHENIX experiment at the Relativistic Heavy Ion Collider...

Measurement of Transverse Single-Spin Asymmetries for Mid-rapidity Production of Neutral Pions and Charged Hadrons in Polarized p+p Collisions at $\sqrt{s} = 200 GeV (2005)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., ...

The transverse single-spin asymmetries of neutral pions and non-identified charged hadrons have been measured at mid-rapidity in polarized proton-proton collisions at sqrt(s) = 200 GeV. The data...

Atomic force microscopy and laser confocal scanning microscopy analysis of callose fibers developed from protoplasts of embryogenic cells of a conifer (2005)

Fukumoto, T., Hayashi, N., Sasamoto, Hamako, 笹本, 浜子, ササモト, ハマコ

Efficiency of novel fiber formation was much improved in protoplast culture of embryogenic cells (ECs) of a conifer, Larix leptolepis (Sieb. et Zucc.) Gord., by pre-culturing ECs in a medium...

Temperature Dependence of the Superfluid Density in a Noncentrosymmetric Superconductor (2005)

Hayashi, N., Wakabayashi, K., Frigeri, P. A., Sigrist, M.

For a noncentrosymmetric superconductor such as CePt3Si, we consider a Cooper pairing model with a two-component order parameter composed of spin-singlet and spin-triplet pairing components. We...

Spatially Resolved NMR Relaxation Rate in a Noncentrosymmetric Superconductor (2005)

Hayashi, N., Wakabayashi, K., Frigeri, P. A., Kato, Y., Sigrist, M.

We numerically study the spatially-resolved NMR around a single vortex in a noncentrosymmetric superconductor such as CePt3Si. The nuclear spin-lattice relaxation rate 1/T1 under the influence of the...

Basic Properties of a Vortex in a Noncentrosymmetric Superconductor (2005)

Hayashi, N., Kato, Y., Frigeri, P. A., Wakabayashi, K., Sigrist, M.

We numerically study the vortex core structure in a noncentrosymmetric superconductor such as CePt3Si without mirror symmetry about the xy plane. A single vortex along the z axis and a mixed...

Measurement of Single Electron Event Anisotropy in Au+Au Collisions at $\sqrt{^sNN}$ = 200 GeV (2005)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., ...

The transverse momentum dependence of the azimuthal anisotropy parameter v_2, the second harmonic of the azimuthal distribution, for electrons at mid-rapidity (|$\eta$| < 0.35) has been measured with...

Saturation of azimuthal anisotropy in Au + Au collisions at sqrt(s_NN) = 62 - 200 GeV (2005)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Al-Jamel, A., ...

New measurements are presented for charged hadron azimuthal correlations at mid-rapidity in Au+Au collisions at sqrt(s_NN) = 62.4 and 200 GeV. They are compared to earlier measurements obtained at...

Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration (2005)

Adcox, K., Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., ...

Extensive experimental data from high-energy nucleus-nucleus collisions were recorded using the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). The comprehensive set of measurements...

Centrality Dependence of Direct Photon Production in sqrt(s_NN) = 200 GeV Au+Au Collisions (2005)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Alexander, J., ...

The first measurement of direct photons in Au+Au collisions at sqrt(s_NN) = 200 GeV is presented. The direct photon signal is extracted as a function of the Au+Au collision centrality and compared to...

Jet Structure of Baryon Excess in Au+Au Collisions at sqrt(S_NN) = 200 GeV (2005)

Adler, S.S., Afanasiev, S., Aidala, C., Ajitanand, N.N., Akiba, Y., Al-Jamel, A., ...

Two particle correlations between identified meson and baryon trigger particles with 2.5 < p_T < 4.0 GeV/c and lower p_T charged hadrons have been measured at midrapidity by the PHENIX experiment at...

Nuclear Magnetic Relaxation Rate in a Noncentrosymmetric Superconductor (2005)

Hayashi, N., Wakabayashi, K., Frigeri, P. A., Sigrist, M.

For a noncentrosymmetric superconductor such as CePt3Si, we consider a Cooper pairing model with a two-component order parameter composed of spin-singlet and spin-triplet pairing components. We...

Single Identified Hadron Spectra from sqrt(s_NN)=130 GeV Au+Au Collisions (2005)

Adcox, K., Adler, S.S., Ajitanand, N.N., Akiba, Y., Alexander, J., Aphecetche, L., ...

Transverse momentum spectra and yields of hadrons are measured by the PHENIX collaboration in Au + Au collisions at sqrt(s_NN) = 130 GeV at the Relativistic Heavy Ion Collider (RHIC). The...

Spin asymmetries for events with high p_T hadrons in DIS and an evaluation of the gluon polarization (2005)

Adeva, B., Arik, E., Arvidson, A., Badeek, B., Baum, G., Berglund, P., ...

We present a measurement of the longitudinal spin cross section asymmetry for deep inelastic muon-nucleon interactions with two high transverse momentum hadrons in the final state. Two methods of...

Impurity Effect on Kramer-Pesch Core Shrinkage in s-Wave Vortex and Chiral p-Wave Vortex (2004)

Hayashi, N., Kato, Y., Sigrist, M.

The low-temperature shrinking of the vortex core (Kramer-Pesch effect) is studied for an isolated single vortex for chiral p-wave and s-wave superconducting phases. The effect of nonmagnetic...

Critical Temperature Tc and Charging Energy Ec between B-B layers of Superconducting diboride materials MgB2 in 3D JJA model (2001)

Kawabata, C., Hayashi, N., Ono, F.

The diboride materials MB2 (M = Mg, Be, Pb, etc.) are discussed on the basis of the 3D Josephson junction array (JJA) model due to Kawabata-Shenoy-Bishop, in terms of the B-B layers in the diborides...

Polarized Parton Distribution Functions in the Nucleon (2000)

Goto, Y., Hayashi, N., Hirai, M., Horikawa, H., Kumano, S., Miyama, M., ...

Polarized parton distribution functions are determined by using world data from the longitudinally polarized deep inelastic scattering experiments. A new parametrization of the parton distribution...

Many-body vortex effect on the transverse force acting on a moving vortex (1999)

Hayashi, N.

The nondissipative transverse force acting on one moving vortex under the influence of another vortex is discussed in fermionic superfluid systems, where the relative velocity between the vortices is...

Measurement of the SMC muon beam polarisation using the asymmetry in the elastic scattering off polarised electrons (1999)

Adams, D, Adeva, B, Akdogan, T, Arik, E, Arvidson, A, Badelek, B, ...

A muon beam polarimeter was built for the SMC experiment at the CERN SPS, for beam energies of 100 and 190~GeV. The beam polarisation is determined from the asymmetry in the elastic scattering off...

Spin Asymmetries $A_1$ of the Proton and the Deuteron in the Low $x$ and Low $Q^2$ Region from Polarized High Energy Muon Scattering (1999)

Adeva, B, Arik, E, Arvidson, A, Badelek, B, Baum, G, Berglund, P, ...

We present the results of the spin asymmetries $A_1$ of the proton and the deuteron in the kinematic region extending down to $x=6\cdot 10^{-5}$ and $Q^2=0.01$ GeV$^2$. The data were taken with a...

A large streamer chamber muon tracking detector in a high-flux fixed-target application (1999)

Adams, D, Adeva, B, Arik, E, Arvidson, A, Badelek, B, Ballintijn, M K, ...

Arrays of limited streamer tubes of the Iarocci type were deployed in our experiment at CERN as part of a forward muon detector system with provisions for the beam to pass through the center of each...

The polarized double cell target of the SMC (1999)

Adams, D, Adeva, B, Arik, E, Arvidson, A, Badelek, B, Ballintijn, M K, ...

The polarized target of the Spin Muon Collaboration at CERN was used for deep inelastic muon scattering experiments during 1993 to 1996 with a polarized muon beam to investigate the spin structure of...

RHIC Spin Physics (1998)

Hayashi, N., Goto, Y., Saito, N.

We describe the foreseen spin physics of the polarized proton-proton collider at RHIC. The study of the spin structure of the nucleon at RHIC is unique and complementary to the traditional polarized...

Relation between Vortex core charge and Vortex Bound States (1998)

Hayashi, N., Ichioka, M., Machida, K.

Spatially inhomogeneous electron distribution around a single vortex is discussed on the basis of the Bogoliubov-de Gennes theory. The spatial structure and temperature dependence of the electron...