High Energy Accelerator Research Organization

output

19912026

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 2002Show all

189 papers · 1 filter

hep-ph2002★ 57 cited

Full one-loop electroweak radiative corrections to single Higgs production in e+ e-

G. Belanger, F. Boudjema, J. Fujimoto +4

We present the full $O (α)$ electroweak radiative corrections to single Higgs production in \epemt. This takes into account the full one-loop corrections as well as the effec…

hep-ex2002★ 10 cited

Measurement of direct photon emission in $K^{+} \to π^{+} π^{0} γ$ decay using stopped positive kaons

Suguru Shimizu, for KEK-E470 Collaboration

The radiative decay $K^{+} \to π^{+} π^{0} γ$ ( $K_{π 2 γ}$ ) has been measured with stopped positive kaons. A $K_{π 2 γ}$ sample containing 4k events was analyzed, and the $K_{π 2 γ}$ branch…

hep-th2002★ 6 cited

The Fuzzy S^4 by Quantum Deformation

S. Aoyama, T. Masuda

The fuzzy algebra of S^4 is discussed by quantum deformation. To this end we embed the classical S^4 in the Kaehler coset space SO(5)/U(2). The harmonic functions of S^4 are constr…

hep-ex2002★ 26 cited

Study of $B^{0} ˉ \to D^{(*) 0} π^{+} π^{-}$ Decays

The Belle Collaboration, A. Satpathy

We report on a study of $B^{0} ˉ \to D^{(*) 0} π^{+} π^{-}$ decays using 29.1 fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data recorded at the $Υ (4 S)$ resonance with the Belle detector…

hep-ex2002★ 889 cited

Indications of Neutrino Oscillation in a 250 km Long-baseline Experiment

K2K Collaboration, M. H. Ahn

The K2K experiment observes indications of neutrino oscillation: a reduction of $ν_{μ}$ flux together with a distortion of the energy spectrum. Fifty-six beam neutrino events are obs…

nucl-th2002

Shape coexistence in N=14 isotones: 19B, 24Ne and 28Si

Y. Kanada-En'yo

Shape coexistence problems in N=14 isotones are studied with a microscopic method of antisymmetrized molecular dynamics. The present calculations reproduce features of deformation…

hep-ex2002★ 10 cited

Observation of the strange sea in the proton via inclusive Phi-meson production in neutral current deep inelastic scattering at HERA

ZEUS Collaboration

Inclusive phi-meson production in neutral current deep inelastic e+p scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 45 pb^{-1}. The p…

hep-ex2002★ 37 cited

Measurement of subjet multiplicities in neutral current deep inelastic scattering at HERA and determination of $α_{s}$

ZEUS Collaboration

The subjet multiplicity has been measured in neutral current e+p interactions at Q**2 > 125 GeV**2 with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb-1. Jets…

hep-th2002★ 1 cited

Note on a Closed String Field Theory from Bosonic IIB Matrix Model

Daiji Ennyu, Hiroshi Kawabe, Naohito Nakazawa

We apply stochastic quantization method to the bosonic part of IIB matrix model, i.e., a naive zero volume limit of large N Yang-Mills theory, to construct a collective field theor…

cond-mat.supr-con2002★ 34 cited

Quasiparticle Excitations outside the Vortex Cores in MgB $_{2}$ Probed by Muon Spin Rotation

Kazuki Ohishi, Takahiro Muranaka, Jun Akimitsu +3

The magnetic penetration depth $λ$ in the mixed state of MgB $_{2}$ has been determined microscopically from the field distribution around magnetic vortices probed by muon spin rotati…

hep-th2002★ 27 cited

Chiral Anomaly and Ginsparg-Wilson Relation on the Noncommutative Torus

Satoshi Iso, Keiichi Nagao

We evaluate chiral anomaly on the noncommutative torus with the overlap Dirac operator satisfying the Ginsparg-Wilson relation in arbitrary even dimensions. Utilizing a topological…

hep-ph2002★ 12 cited

Comparing the QCD potential in Perturbative QCD and Lattice QCD at large distances

S. Recksiegel, Y. Sumino

We compare the perturbatively calculated QCD potential to that obtained from lattice calculations in the theory without light quark flavours. We examine E_tot(r) = 2 m_pole + V_QCD…

hep-ph2002★ 7 cited

Polarized light-flavor antiquarks from Drell-Yan processes of h+\vec{N}\to\vec{l^{+-}} + l^{-+} + X

H. Kitagawa, Y. Sakemi, T. Yamanishi

We propose a formula to determine the first moment of difference between the polarized $u ˉ$ - and $d ˉ$ -quarks in the nucleon, {\it i.e.} $Δ u ˉ - Δ d ˉ$ from the Drell-Yan…

hep-ph2002★ 3 cited

One-loop contributions of charginos and neutralinos to W-pair production in E+ E- collisions

Kaoru Hagiwara, Shinya Kanemura, Michael Klasen +1

We study the one-loop effects of charginos and neutralinos on the helicity amplitudes for $\eeww$ in the minimal supersymmetric standard model. The calculation is tested by using t…

hep-lat2002★ 132 cited

Light hadron spectroscopy with two flavors of $O (a)$ -improved dynamical quarks

JLQCD Collaboration, S. Aoki, R. Burkhalter +14

We present a high statistics study of the light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks. Numerical simulations are carried out using the plaque…

hep-ex2002★ 59 cited

Search for anti-electron-neutrinos from the Sun at Super-Kamiokande-I

Kamiokande collaboration, Y. Gando

We present the results of a search for low energy $ν ˉ_{e}$ from the Sun using 1496 days of data from Super-Kamiokande-I. We observe no significant excess of events and set an uppe…

hep-ex2002★ 49 cited

Observation of B0bar->Lambda_c+pbar decay

N. Gabyshev, H. Kichimi

We report the measurement of the charmed baryonic decay B0bar->Lambda_c+pbar with a branching fraction of (2.19^{+0.56}_{-0.49}+-0.32+-0.57)x10^{-5} and a statistical significance…

hep-ex2002★ 34 cited

Studies of B0-B0bar Mixing Properties with Inclusive Dilepton Events

N. C. Hastings

We report a precise determination of the B0-B0bar mixing parameter Delta-m_d based on the time evolution of same-sign and opposite-sign dilepton yields in Upsilon(4S) decays. Data…

hep-ex2002★ 12 cited

Measurement of the $B^{0} - B ˉ^{0}$ mixing rate with $B^{0} (B ˉ^{0}) \to D^{*\mp} π^{\pm}$ partial reconstruction

Y. Zheng, T. E. Browder

We report a measurement of the $B^{0} - B ˉ^{0}$ mixing parameter $Δ m_{d}$ based on a $29.1 f b^{- 1}$ sample of $Υ (4 S)$ resonance decays collected by the Belle detector at the KEKB…

hep-ex2002★ 59 cited

Search for Long-lived Charged Massive Particles in anti-p p Collisions at s**1/2 = 1.8 TeV

D. Acosta

We report a search for production of long-lived charged massive particles in a data sample of 90 pb^{-1} of \sqrt{s} = 1.8 TeV p anti-p collisions recorded by the Collider Detector…

hep-lat2002★ 88 cited

Domain wall fermions with improved gauge actions

Y. Aoki, T. Blum, N. Christ +9

We study the chiral properties of quenched domain wall fermions with several gauge actions. We demonstrate that the residual chiral symmetry breaking, which is present for a finite…

hep-ex2002★ 6 cited

Further search for T-violation in the decay K^+ --> pi^0 mu^+ nu

M. Abe, M. Aliev, V. Anisimovsky

A new result for the transverse mu^+ polarization, P_T, in the decay K^+ --> pi^0 mu^+ nu has been obtained in the KEK E246 experiment. Combined with our earlier result, P_T = (-1.…

hep-ex2002★ 4 cited

Search for Particles and Forces Beyond the Standard Model at HERA ep and Tevatron p\bar{p} Colliders

Masahiro Kuze, Yves Sirois

A review of searches for physics beyond the Standard Model carried out at high energy lepton-hadron and hadron-hadron facilities is presented, with emphasis on topics of interest f…

hep-ex2002★ 42 cited

Measurement of Branching Fractions and Charge Asymmetries for Two-Body B Meson Decays with Charmonium

Belle Collaboration

We report branching fractions and charge asymmetries for exclusive decays of charged and neutral B mesons to two-body final states containing a charmonium meson, J/psi or psi(2S).…