Ohki, H., Fukaya, H., Hashimoto, S., Matsufuru, H., Noaki, J., Onogi, T., ...
We present a calculation of the nucleon sigma term on two-flavor QCD configurations with dynamical overlap fermions. We analyse the lattice data for the nucleon mass using the baryon chiral...
Pion vector and scalar form factors with dynamical overlap quarks (2008)
Kaneko, TWQCD Collaborations: T., Aoki, S., Chiu, T. W., Fukaya, H., Hashimoto, S., ...
We calculate the pion vector and scalar form factors in two-flavor QCD. Gauge configurations are generated with dynamical overlap quarks on a 16^3 x 32 lattice at a lattice spacing of 0.12 fm with...
Light meson spectrum with $N_f=2+1$ dynamical overlap fermions (2008)
Noaki, J., Aoki, S., Chiu, T. W., Fukaya, H., Hashimoto, S., Hsieh, T. H., ...
We report on a numerical simulation with 2+1 dynamical flavors of overlap fermions. We calculate pseudo-scalar masses and decay constants on a $16^3\times 48 \times (0.11 {\rm fm})^4$ lattice at five...
Topological susceptibility in (2+1)-flavor lattice QCD with overlap fermion (2008)
Chiu, T. W., Aoki, S., Hashimoto, S., Hsieh, T. H., Kaneko, T., Matsufuru, H., ...
We determine the topological susceptibility \chi_t in the topologically-trivial sector generated by lattice simulations of N_f = 2+1 QCD with overlap Dirac fermion, on a 16^3 x 48 lattice with...
Lattice calculation of strong coupling constant from vacuum polarization functions (2008)
Shintani, E., Aoki, S., Chiu, T. W., Hashimoto, S., Hsieh, T. H., Kaneko, T., ...
We calculate the vacuum polarization functions on the lattice with exact chiral symmetry. By matching the lattice data at large momentum scales with the perturbative expansion supplemented by...
Nucleon sigma term and strange quark content from lattice QCD with exact chiral symmetry (2008)
Ohki, H., Fukaya, H., Hashimoto, S., Kaneko, T., Matsufuru, H., Noaki, J., ...
We calculate the nucleon sigma term in two-flavor lattice QCD utilizing the Feynman-Hellman theorem. Both sea and valence quarks are described by the overlap fermion formulation, which preserves...
S-parameter and pseudo-Nambu-Goldstone boson mass from lattice QCD (2008)
Shintani, E., Aoki, S., Fukaya, H., Hashimoto, S., Kaneko, T., Matsufuru, H., ...
We present a lattice calculation of $L_{10}$, one of the low energy constants in Chiral Perturbation Theory, and the charged-neutral pion squared mass splitting, using dynamical overlap fermion....
Topological susceptibility in 2-flavor lattice QCD with fixed topology (2008)
Chiu, T. W., Aoki, S., Fukaya, H., Hashimoto, S., Hsieh, T. H., Kaneko, T., ...
We determine the topological susceptibility $ \chi_t $ in the trivial topological sector generated by lattice simulations of two-flavor QCD with overlap Dirac fermion, on a $16^3 \times 32$ lattice...
Convergence of the chiral expansion in two-flavor lattice QCD (2008)
Noaki, J., Aoki, S., Chiu, T. W., Fukaya, H., Hashimoto, S., Hsieh, T. H., ...
We test the convergence property of the chiral perturbation theory (ChPT) using a lattice QCD calculation of pion mass and decay constant with two dynamical quark flavors. The lattice calculation is...
Two-flavor QCD simulation with exact chiral symmetry (2008)
Aoki, JLQCD Collaboration: S., Fukaya, H., Hashimoto, S., Ishikawa, K-I., Kanaya, K., Kaneko, T., ...
We perform numerical simulations of lattice QCD with two flavors of dynamical overlap quarks, which have exact chiral symmetry on the lattice. While this fermion discretization is computationally...
B_K with two flavors of dynamical overlap fermions (2008)
Aoki, S., Fukaya, H., Hashimoto, S., Noaki, J., Kaneko, T., Matsufuru, H., ...
We present a two-flavor QCD calculation of $B_K$ on a $16^3 \times 32$ lattice at $a\sim 0.12$ fm (or equivalently $a^{-1}\sim$1.67 GeV). Both valence and sea quarks are described by the overlap...
The Physcomitrella genome reveals evolutionary insights into the conquest of land by plants (2008)
Rensing, S. A., Lang, D., Zimmer, A. D., Terry, A., Salamov, A., Shapiro, H., ...
Lattice study of meson correlators in the epsilon-regime of two-flavor QCD (2007)
Fukaya, JLQCD Collaboration: H., Aoki, S., Hashimoto, S., Kaneko, T., Matsufuru, H., Noaki, J., ...
We calculate mesonic two-point functions in the epsilon-regime of two-flavor QCD on the lattice with exact chiral symmetry. We use gauge configurations of size 16^3 32 at the lattice spacing a \sim...
Meson correlators in the epsilon-regime of two-flavor lattice QCD (2007)
Aoki, S., Hashimoto, S., Kaneko, T., Matsufuru, H., Noaki, J., ...
We calculate the meson correlators in the $\epsilon$-regime of two-flavor QCD. On a $16^3\times 32$ lattice with $a\sim 0.11$ fm, the lattice simulations are performed with the dynamical overlap...
Pion form factor from all-to-all propagators of overlap quarks (2007)
Kaneko, JLQCD Collaboration: T., Fukaya, H., Hashimoto, S., Matsufuru, H., Noaki, J., Onogi, T., ...
We report on our calculation of the pion electromagnetic form factor with two-flavors of dynamical overlap quarks. Gauge configurations are generated using the Iwasaki gauge action on a 16^3 \times...
Light meson spectrum with $N_f=2$ dynamical overlap fermions (2007)
Noaki, J., Aoki, S., Fukaya, H., Hashimoto, S., Kaneko, T., Matsufuru, H., ...
We present numerical simulation of QCD with two dynamical quark flavors described by the overlap fermion action on a $16^3\times 32\times (0.12 {\rm fm})^4$ lattice. We calculate pseudo-scalar masses...
Topological susceptibility in two-flavor lattice QCD with exact chiral symmetry (2007)
Aoki, S., Chiu, T. W., Fukaya, H., Hashimoto, S., Hsieh, T. H., Kaneko, T., ...
We determine the topological susceptibility $\chi_t$ in two-flavor QCD using the lattice simulations at a fixed topological sector. The topological charge density is unambiguously defined on the...
B_K with dynamical overlap fermions (2007)
Yamada, JLQCD Collaboration: N., Aoki, S., Fukaya, H., Hashimoto, S., Noaki, J., Kaneko, T., ...
We report on a calculation of $B_K$ with two-flavor dynamical overlap fermions on a $16^3 \times 32$ lattice at $a\sim 0.12$ fm. The results are compared with the PQChPT prediction of quark mass...
Pion mass difference from vacuum polarization (2007)
Shintani, JLQCD Collaboration: E., Fukaya, H., Hashimoto, S., Matsufuru, H., Noaki, J., Onogi, T., ...
We calculate the electromagnetic contribution to the pion mass difference, $\Delta m^2_\pi=m^2_{\pi^+}-m^2_{\pi^0}$, in the chiral limit through the $VV-AA$ type vacuum polarization using...
Two-flavor lattice QCD in the epsilon-regime and chiral Random Matrix Theory (2007)
Fukaya, TWQCD Collaboration: H., Aoki, S., Chiu, T. W., Hashimoto, S., Kaneko, T., ...
The low-lying eigenvalue spectrum of the QCD Dirac operator in the epsilon-regime is expected to match with that of chiral Random Matrix Theory (ChRMT). We study this correspondence for the case...
Light quark masses from unquenched lattice QCD (2007)
Aoki, S., Fukugita, M., Hashimoto, S., Ishikawa, K-I., Ishizuka, N., ...
We calculate the light meson spectrum and the light quark masses by lattice QCD simulation, treating all light quarks dynamically and employing the Iwasaki gluon action and the nonperturbatively...
Kaneko, Takashi, Aoki, S, Della Morte, M, Hashimoto, S, Hoffmann, R, Sommer, R
We perform a non-perturbative determination of the improvement coefficient c_A to remove O(a) discretization errors in the axial vector current in three-flavor lattice QCD with the Iwasaki gauge...
Kaneko, T., Aoki, S., Della Morte, M., Hashimoto, S., Hoffmann, R., Sommer, R.
We perform a non-perturbative determination of the improvement coefficient c_A to remove O(a) discretization errors in the axial vector current in three-flavor lattice QCD with the Iwasaki gauge...
Two-flavor lattice QCD simulation in the epsilon-regime with exact chiral symmetry (2007)
Fukaya, JLQCD Collaboration: H., Aoki, S., Chiu, T. W., Hashimoto, S., Kaneko, T., Matsufuru, H., ...
We perform lattice simulations of two-flavor QCD using Neuberger's overlap fermion, with which the exact chiral symmetry is realized at finite lattice spacings. The epsilon-regime is reached by...
T. Kaneko, S. Aoki, M. Della Morte, S. Hashimoto, R. Hoffmann, ...
Journal article
Analysis of (K^-,K^+) inclusive spectrum with semiclassical distorted wave model (2006)
Hashimoto, S., Kohno, M., Ogata, K., Kawai, M.
The inclusive K^+ momentum spectrum in the 12C(K^-,K^+) reaction is calculated by the semiclassical distorted wave (SCDW) model, including the transition to the \Xi^- bound state. The calculated...
Direct observation and reactions of Cl-3 radical (2006)
Enami, S, Yamanaka, T, Hashimoto, S, Kawasaki, M, Aloisio, S, Tachikawa, H
Aoki, S., Fukugita, M., Hashimoto, S., Ishizuka, N., ...
We present a summary of results of the joint CP-PACS and JLQCD project toward a 2+1 flavor full QCD simulation with the O(a)-improved Wilson quark formalism and the Iwasaki gauge action....
JLQCD's dynamical overlap project (2006)
Kaneko, JLQCD Collaboration: T., Aoki, S., Fukaya, H., Hashimoto, S., Ishikawa, K-I., Kanaya, K., ...
We present an overview of our project of large-scale simulations with dynamical overlap fermions. The first production run in two-flavor QCD is on-going using the Iwasaki gauge action on a 16^3...
Dynamical overlap fermions in the epsilon-regime (2006)
Fukaya, JLQCD Collaboration: H., Hashimoto, S., Kanaya, K., Kaneko, T., Matsufuru, H., Ogawa, K., ...
We report on the two-flavor QCD simulation in the epsilon-regime using the overlap fermion formulation. Sea quark mass is reduced to ~ 2 MeV on a 16^3x32 lattice with the lattice spacing ~ 0.11fm....
Hayashi, M, Mizoguchi, H, Ohnishi, J, Mitsuhashi, S, Yonetani, Y, Hashimoto, S, ...
The original publication is available at www.springerlink.com.
Yamada, JLQCD Collaboration: N., Aoki, S., Fukaya, H., Hashimoto, S., Ishikawa, K-I., Kanaya, K., ...
We perform a systematic study of low-lying eigenmodes of $H_w$ with various gauge actions to find the optimal choice for dynamical overlap fermion simulations, with which one may achieve lower...
Lattice gauge action suppressing near-zero modes of H_W (2006)
Fukaya, JLQCD Collaboration: H., Hashimoto, S., Kaneko, T., Matsufuru, H., Onogi, T., ...
We propose a lattice action including unphysical Wilson fermions with a negative mass m_0 of the order of the inverse lattice spacing. With this action, the exact zero mode of the hermitian...
発達障害児の不合理絵課題における状況理解能力の発達特性 (2006)
堀江, 美喜子, 橋本, 創一, ホリエ, ミキコ, ハシモト, ソウイチ, HORIE, M., HASHIMOTO, S., ...
重度の知的障害を伴う成人期発達障害者における実行機能の特徴 : Dimensional Change Card Sort課題を用いた検討 (2006)
浮穴, 寿香, 橋本, 創一, 出口, 利定, ウケナ, ヨシカ, ハシモト, ソウイチ, デクチ, トシサダ, ...
Buffer-gas pressure broadening for the (30(0)1)(III) (2006)
Nakamichi, S, Kawaguchi, Y, Fukuda, H, Enami, S, Hashimoto, S, Kawasaki, M, ...
Kinetic study of the ClOO plus NO reaction using cavity ring-down spectroscopy (2006)
Enami, S, Hoshino, Y, Ito, Y, Hashimoto, S, Kawasaki, M, Wallington, TJ
Direct observation and reactions of Cl-3 radical (2006)
Enami, S, Yamanaka, T, Hashimoto, S, Kawasaki, M, Aloisio, S, Tachikawa, H
Topology conserving gauge action and the overlap-Dirac operator (2005)
Fukaya, H, Hashimoto, S, Hirohashi, T, Ogawa, K, Onogi, T
We apply the topology conserving gauge action proposed by Luescher to the four-dimensional lattice QCD simulation in the quenched approximation. With this gauge action the topological charge is...
Topology conserving gauge action and the overlap-Dirac operator (2005)
Fukaya, H., Hashimoto, S., Hirohashi, T., Ogawa, K., Onogi, T.
We apply the topology conserving gauge action proposed by Luescher to the four-dimensional lattice QCD simulation in the quenched approximation. With this gauge action the topological charge is...
Overlap fermion with the topology conserving gauge action (2005)
Fukaya, H., Hashimoto, S., Hirohashi, T., Matsufuru, H., Ogawa, K., Onogi, T.
We investigate the distribution of low-lying eigenmodes of hermitian Wilson-Dirac operator, $H_W$, with the gauge action whose form is designed to avoid topology change, as well as with the standard...
Kaon semileptonic decay form factors in two-flavor QCD (2005)
Tsutsui, JLQCD Collaboration: N., Aoki, S., Fukugita, M., Hashimoto, S., Ishikawa, K-I., Ishizuka, N., ...
We present a calculation of the kaon form factors in two-flavor QCD with the non-perturbatively $O(a)$-improved Wilson quark action. In order to achieve a few percent accuracy in the study of SU(3)...
Fukaya, H., Onogi, T., Hashimoto, S., Hirohashi, T., Ogawa, K.
The topology conserving gauge action proposed by Luescher is expected to reduce the number of non-smooth gauge configurations as well as the topology change compared to the conventional actions for...
Light hadron spectrum and quark masses in 2+1 flavor QCD (2005)
Ishikawa, JLQCD Collaborations: T., Aoki, S., Bär, O., Fukugita, M., Hashimoto, S., ...
CP-PACS and JLQCD collaborations are carrying out a joint project of the 2+1 flavor full QCD simulation. Gauge configurations are generated for the non-perturbatively $O(a)$-improved Wilson quark...
Aoki, JLQCD Collaborations: S., Fukugita, M., Hashimoto, S., Ishikawa, K-I., Ishizuka, N., ...
We perform a nonperturbative determination of the $O(a)$-improvement coefficient $c_{\rm SW}$ and the critical hopping parameter $\kappa_c$ for $N_f$=3, 2, 0 flavor QCD with the RG-improved gauge...
Ogata, K., Hashimoto, S., Iseri, Y., Kamimura, M., Yahiro, M.
The astrophysical factor for 7Be(p,\gamma)8B at zero energy, S17(0), is determined from an analysis of 208Pb(8B, p+7Be)208Pb at 52 MeV/nucleon by means of the method of continuum-discretized...
The Discovery Potential of a Super B Factory (2005)
Hewett, JoAnne. L., Hitlin, David G., Abe, T., Agashe, K., Albert, J., Ali, A., ...
The Proceedings of the 2003 SLAC Workshops on flavor physics with a high luminosity asymmetric e+e- collider. The sensitivity of flavor physics to physics beyond the Standard Model is addressed in...
Type IX collagen is crucial for normal hearing (2005)
Asamura, K., Abe, S., Imamura, Y., Aszodi, A., Suzuki, N., Hashimoto, S., ...
Light hadron spectrum in 2+1 flavor full QCD by CP-PACS and JLQCD Collaborations (2004)
Ishikawa, T., Aoki, S., Fukugita, M., Hashimoto, S., Ishikawa, K-I., Ishizuka, N., ...
CP-PACS and JLQCD Collaborations are carrying out a joint project of the 2+1 flavor full QCD with the RG-improved gauge action and the non-perturbatively ${\cal O}(a)$-improved Wilson quark action....
Aoki, JLQCD Collaboration: S., Fukugita, M., Hashimoto, S., Ishikawa, K-I., Ishizuka, N., Iwasaki, Y., ...
Three-flavor QCD simulation with the $O(a)$-improved Wilson fermion action is made employing an exact fermion algorithm developed for odd number of quark flavors. For the plaquette gauge action, an...