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most citedEvidence for oscillation of atmospheric neutrinos

5.1k citations

Showing 2009Show all

162 papers · 1 filter

hep-ex2009

Precise measurement of HFS of positronium

A. Ishida, G. Akimoto, K. Kato +11

The ground state hyperfine splitting in positronium, , is sensitive to high order corrections of QED. A new calculation up to has revealed a disc…

hep-th2009★ 14 cited

Chiral Generations on Intersecting 5-branes in Heterotic String Theory

Tetsuji Kimura, Shun'ya Mizoguchi

We show that there exist two 27 and one 27 bar of E6, net one D=4, N=1 chiral matter supermultiplet as zero modes localized on the intersection of two 5-branes in the E8 x E8 heter…

hep-ph2009★ 356 cited

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

S. Actis, A. Arbuzov, G. Balossini +53

We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing,…

hep-ph2009★ 8 cited

Testing supersymmetry at the LHC through gluon-fusion production of a slepton pair

Francesca Borzumati, Kaoru Hagiwara

Renormalizable quartic couplings among new particles are typical of supersymmetric models. Their detection could provide a test for supersymmetry, discriminating it from other exte…

hep-ph2009★ 34 cited

Dynamical electroweak symmetry breaking with superheavy quarks and 2+1 composite Higgs model

Michio Hashimoto, V. A. Miransky

Recently, a new class of models describing the quark mass hierarchy has been introduced. In this class, while the t quark plays a minor role in electroweak symmetry breaking (EWSB)…

hep-ex2009★ 149 cited

Observation of a charmonium-like enhancement in the gamma gamma --> omega J/psi process

The Belle Collaboration, S. Uehara

We report the results of a search for a charmonium-like state produced in the process gamma gamma --> omega J/psi in the 3.9-4.2 GeV/c^2 mass region. We observe a significant enhan…

astro-ph.HE2009★ 34 cited

Effects of Neutral Particles on Modified Shocks at Supernova Remnants

Yutaka Ohira, Fumio Takahara

H-alpha emission from supernova remnants (SNRs) implies the existence of neutral hydrogens in the ambient medium. In the precursor of an SNR shock modified by cosmic rays (CRs), up…

hep-ex2009★ 131 cited

Evidence for a new resonance and search for the Y(4140) in

The Belle Collaboration, C. P. Shen

The process $γγ\to ϕ\jpsi$ is measured for $ϕ\jpsi$ masses between threshold and 5 GeV/, using a data sample of 825 fb collected with the Belle detector. A narrow…

hep-ex2009★ 85 cited

Transverse momentum dependence of J/psi polarization at midrapidity in p+p collisions at sqrt(s)=200 GeV

PHENIX Collaboration, A. Adare

We report the measurement of the transverse momentum dependence of inclusive J/psi polarization in p+p collisions at sqrt(s)=200 GeV performed by the PHENIX Experiment at RHIC. The…

hep-th2009★ 7 cited

Quiver Chern-Simons Theories, D3-branes and Lorentzian Lie 3-algebras

Yoshinori Honma, Sen Zhang

We show that the Bagger-Lambert-Gustavsson (BLG) theory with two pairs of negative norm generators is derived from the scaling limit of an orbifolded Aharony-Bergman-Jafferis-Malda…

nucl-ex2009★ 316 cited

Detailed measurement of the e+e- pair continuum in p+p and Au+Au collisions at sqrt(s_NN)=200 GeV and implications for direct photon production

PHENIX Collaboration, A. Adare

PHENIX has measured the e^+e^- pair continuum in sqrt(s_NN)=200 GeV Au+Au and p+p collisions over a wide range of mass and transverse momenta. The e^+e^- yield is compared to the e…

hep-lat2009★ 19 cited

The exact decomposition of gauge variables in lattice Yang-Mills theory

Akihiro Shibata, Kei-Ichi Kondo, Toru Shinohara

In this paper, we consider lattice versions of the decomposition of the Yang- Mills field a la Cho-Faddeev-Niemi, which was extended by Kondo, Shinohara and Murakami in the continu…

hep-ph2009

Pion form factors from lattice QCD with exact chiral symmetry

Takashi Kaneko

We calculate pion vector and scalar form factors in two-flavor lattice QCD and study the chiral behavior of the vector and scalar radii <r^2>_{V,S}. For a direct comparison with ch…

astro-ph.CO2009★ 38 cited

Cosmic Discordance: Detection of a modulation in the primordial fluctuation spectrum

Kiyotomo Ichiki, Ryo Nagata, Jun'ichi Yokoyama

As a test of the standard inflationary cosmology, which generically predicts nearly scale-invariant spectrum of primordial curvature fluctuations, we perform Markov-Chain Monte-Car…

hep-lat2009★ 9 cited

Topological configurations of Yang-Mills field responsible for magnetic-monopole loops as quark confiner

Akihiro Shibata, Kei-Ichi Kondo, Seikou Kato +3

We have given a new description of the lattice Yang-Mills theory a la Cho-Faddeev-Niemi-Shabanov, which has enabled us to confirm in a gauge-independent manner "Abelian"-dominance…

hep-ph2009★ 194 cited

Static QCD potential at three-loop order

C. Anzai, Y. Kiyo, Y. Sumino

We compute the purely gluonic contribution to the static QCD potential at three--loop order. This completes the computation of the static potential at this order.

hep-ex2009★ 75 cited

A QCD analysis of ZEUS diffractive data

ZEUS Collaboration

ZEUS inclusive diffractive cross-section measurements have been used in a DGLAP next-to-leading-order QCD analysis to extract the diffractive parton distribution functions. Data on…

hep-th2009★ 68 cited

Monte Carlo studies of Matrix theory correlation functions

Masanori Hanada, Jun Nishimura, Yasuhiro Sekino +1

We study correlation functions in (0+1)-dimensional maximally supersymmetric U(N) gauge theory, which represents the low-energy effective theory of D0-branes. In the large-N limit,…

physics.ins-det2009★ 75 cited

High-speed charge-to-time converter ASIC for the Super-Kamiokande detector

H. Nishino, K. Awai, Y. Hayato +7

A new application-specific integrated circuit (ASIC), the high-speed charge-to-time converter (QTC) IWATSU CLC101, provides three channels, each consisting of preamplifier, discrim…

astro-ph.IM2009★ 3 cited

Prospects of Search for Solar Axions with Mass over 1 eV and Hidden Sector Photons

R. Ohta, M. Minowa, Y. Inoue +3

We present prospects of two experiments using the Tokyo Axion Helioscope. One is a search for solar axions. In the past measurements, axion mass from 0 to 0.27 eV and from 0.84 to…

hep-lat2009★ 48 cited

Determination of the chiral condensate from 2+1-flavor lattice QCD

The JLQCD collaboration, H. Fukaya, S. Aoki +5

We perform a precise calculation of the chiral condensate in QCD using lattice QCD with 2+1 flavors of dynamical overlap quarks. Up and down quark masses cover a range between 3 an…

hep-ex2009★ 111 cited

Experimental study of the decay

The E391a Collaboration, J. K. Ahn

The first dedicated search for the rare neutral-kaon decay has been carried out in the E391a experiment at the KEK 12-GeV proton synchrotron. The final upper li…

hep-th2009★ 33 cited

Uniqueness theorem for charged dipole rings in five-dimensional minimal supergravity

Shinya Tomizawa

We show a uniqueness theorem for charged dipole rotating black rings in the bosonic sector of five-dimensional minimal supergravity, generalizing our previous work [arXiv:0901.4724…

hep-ph2009★ 8 cited

Flavour Geometry and Effective Yukawa Couplings in the MSSM

John Ellis, Robert N. Hodgkinson, Jae Sik Lee +1

We present a new geometric approach to the flavour decomposition of an arbitrary soft supersymmetry-breaking sector in the MSSM. Our approach is based on the geometry that results…