Publications (245)
Calculation of matrix elements in quenched domain-wall QCD
PACS Collaboration, A. Ali Khan, S. Aoki +18
We explore the possibility for an evaluation of non-leptonic decay amplitudes through the calculation of matrix elements using domain-wall QCD. The relation be…
Topology conserving gauge action and the overlap-Dirac operator
H. Fukaya, S. Hashimoto, T. Hirohashi +2
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 topologi…
Overlap fermion with the topology conserving gauge action
H. Fukaya, S. Hashimoto, T. Hirohashi +3
We investigate the distribution of low-lying eigenmodes of hermitian Wilson-Dirac operator, , with the gauge action whose form is designed to avoid topology change, as well as…
Pion form factors in the epsilon regime
JLQCD Collaboration, H. Fukaya, S. Aoki +6
We consider how to extract the pion form factors in the epsilon regime. Using the correlators with non-zero momenta and taking appropriate ratios of them, we eliminate the dominant…
Two-photon decay of from two-flavor lattice QCD
E. Shintani, S. Aoki, S. Hashimoto +2
We study the correction to the radiative decay width due to finite light quark mass. Using lattice QCD with the overlap fermion formulation, we calculate the three-point fun…
Role of axial U(1) anomaly in chiral susceptibility of QCD at high temperature
S. Aoki, Y. Aoki, H. Fukaya +3
The chiral susceptibility, or the first derivative of the chiral condensate with respect to the quark mass, is often used as a probe for the QCD phase transition since the chiral c…
Scaling Study of the Two-Flavor Chiral Phase Transition with the Kogut-Susskind Quark Action in Lattice QCD
JLQCD Collaboration, S. Aoki, M. Fukugita +9
We report on a study of two-flavor finite-temperature chiral phase transition employing the Kogut-Susskind quark action and the plaquette gluon action in lattice QCD for a lattice…
Lattice QCD Calculation of the Kaon B-parameter with the Wilson Quark Action
JLQCD Collaboration, S. Aoki, M. Fukugita +8
The kaon B parameter is calculated in quenched lattice QCD with the Wilson quark action. The mixing problem of the Îs=2 four-quark operators is solved non-perturbatively with full…
Physics at Super B Factory
A. G. Akeroyd, W. Bartel, A. Bondar +41
This report presents the results of studies that investigate the physics reach at a Super B factory, an asymmetric-energy e^+e^- collider with a design luminosity of 5 x 10^35 cm^-…
Mobility edge and locality of the overlap-Dirac operator with and without dynamical overlap fermions
JLQCD Collaboration, N. Yamada, S. Aoki +8
We perform a systematic study of low-lying eigenmodes of with various gauge actions to find the optimal choice for dynamical overlap fermion simulations, with which one may a…
Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks
PACS Collaboration, A. Ali Khan, S. Aoki +17
We present results of a first study of equation of state in finite-temperature QCD with two flavors of Wilson-type quarks. Simulations are made on lattices with temporal size $N_t=…
Nucleon Decay Matrix Elements from Lattice QCD
JLQCD Collaboration, S. Aoki, M. Fukugita +15
We present a model-independent calculation of hadron matrix elements for all dimension-six operators associated with baryon number violating processes using lattice QCD. The calcul…
Extracting the meson mass from gluonic correlators in lattice QCD
JLQCD collaboration, H. Fukaya, G. Cossu +2
Calculation of the eta-prime meson mass is a notoriously difficult problem, as it requires evaluation of the disconnected diagram which is costly and noisy. In this work, we use a…
Chiral properties of light mesons with overlap fermions
JLQCD, TWQCD Collaborations, : +11
We present an update of the light meson spectrum with =2+1 overlap fermions on a lattice at five different up and down quark masses and two strange quark masse…
A study of corrections for with lattice NRQCD
N. Yamada, S. Hashimoto, K-I. Ishikawa +2
We investigate higher order effects in the nonrelativistic expansion of lattice QCD on the heavy-light meson decay constants and some other quantities in order to understand the tr…
Chiral-spin symmetry of the meson spectral function above
C. Rohrhofer, Y. Aoki, L. Ya. Glozman +1
Recently, via calculation of spatial correlators of isovector operators using a chirally symmetric Dirac operator within QCD, it has been found that QCD at temperat…
mixing in quenched lattice QCD
JLQCD Collaboration, S. Aoki, M. Fukugita +13
We present our results of lattice calculations of parameters, which parameterize =2 transition amplitudes together with the leptonic decay constant. Calculations are made…
semileptonic form factors from lattice QCD with Möbius domain-wall quarks
Y. Aoki, B. Colquhoun, H. Fukaya +5
We calculate the form factors for the decay in 2+1 flavor lattice QCD. For all quark flavors, we employ the Möbius domain-wall action, which preserves chira…
Convergence of the chiral expansion in two-flavor lattice QCD
J. Noaki, S. Aoki, T. W. Chiu +8
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 latt…
Light meson form factors in N_f=2+1 QCD with dynamical overlap quarks
JLQCD Collaboration, T. Kaneko, S. Aoki +5
We report on our calculation of pion and kaon form factors in three-flavor QCD using the overlap quark action. Gauge ensembles are generated on a 16^3 \times 48 lattice at a lattic…
Nucleon sigma term and strange quark content in 2+1-flavor QCD with dynamical overlap fermions
H. Ohki, S. Aoki, H. Fukaya +7
We study the sigma term and the strange quark content of nucleon in 2+1-flavor QCD with dynamical overlap fermions. We analyze the lattice data of nucleon mass taken at two differe…
Results for Quenched from JLQCD
JLQCD Collaboration, S. Aoki, M. Fukugita +8
A report is presented on our continued effort to elucidate the continuum limit of using the quenched Kogut-Susskind quark action. By adding to our previous simulations one mo…
Nucleon axial and tensor charges with dynamical overlap quarks
N. Yamanaka, H. Ohki, S. Hashimoto +1
We report on our calculation of the nucleon axial and tensor charges in 2+1-flavor QCD with dynamical overlap quarks. Gauge ensembles are generated at a single lattice spacing 0.12…
Manifestation of Sea Quark Effects in the Strong Coupling Constant in Lattice QCD
S. Aoki, M. Fukugita, S. Hashimoto +5
We demonstrate that sea quark effects of a magnitude expected from renormalization group considerations are clearly visible in the strong coupling constant measured in current full…
Overlap/Domain-wall reweighting
H. Fukaya, S. Aoki, G. Cossu +3
We investigate the eigenvalues of nearly chiral lattice Dirac operators constructed with five-dimensional implementations. Allowing small violation of the Ginsparg-Wilson relation,…
Light hadron spectrum in 2+1 flavor full QCD by CP-PACS and JLQCD Collaborations
T. Ishikawa, S. Aoki, M. Fukugita +13
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 -improved Wil…
Study of intermediate states in the inclusive semileptonic decay structure function
G. Bailas, S. Hashimoto, T. Kaneko +1
We analyze the inclusive semileptonic structure functions in 2+1-flavor lattice QCD. The Möbius domain-wall fermion action is used for light, strange, charm and…
Calculation of the nucleon sigma term and strange quark content with two flavors of dynamical overlap fermions
H. Ohki, H. Fukaya, S. Hashimoto +5
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 bary…
The Discovery Potential of a Super B Factory
JoAnne. L. Hewett, David G. Hitlin, T. Abe +96
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…
Chiral behavior of decay form factors in lattice QCD with exact chiral symmetry
JLQCD Collaboration, S. Aoki, G. Cossu +6
We calculate the form factors of the semileptonic decays in three-flavor lattice QCD, and study their chiral behavior as a function of the momentum transfer and the…
Topological susceptibility in two-flavor lattice QCD with exact chiral symmetry
S. Aoki, T. W. Chiu, H. Fukaya +8
We determine the topological susceptibility in two-flavor QCD using the lattice simulations at a fixed topological sector. The topological charge density is unambiguously de…
B -> pi l nu at three lattice spacings
S. M. Ryan, A. X. El-Khadra, S. Hashimoto +3
The increasing accuracy of experimental results for the exclusive, semileptonic decay B -> pi l nu requires a similarly accurate calculation of the hadronic matrix elements, to det…
Charmonium spectroscopy with heavy Kogut-Susskind quarks
S. Aoki, M. Fukugita, S. Hashimoto +5
Charmonium spectroscopy with Kogut-Susskind valence quarks are carried out for quenched QCD at and for two-flavor full QCD at . Results for 1P--1S mass splitting a…
Heavy quark mass dependence of semileptonic form factors for B decays
JLQCD Collaboration, S. Aoki, M. Fukugita +13
We present our study of the dependence of the heavy-to-light semileptonic B decay form factors on the heavy-light meson mass . Simulations are made over a range of the heav…
Bulk first-order phase transition in three-flavor lattice QCD with -improved Wilson fermion action at zero temperature
JLQCD collaboration, S. Aoki, M. Fukugita +12
Three-flavor QCD simulation with the -improved Wilson fermion action is made employing an exact fermion algorithm developed for odd number of quark flavors. For the plaquette…
The Light Quark Masses with the Wilson Quark Action using Chiral Ward Identities
JLQCD Collaboration, S. Aoki, M. Fukugita +8
We present results for the light quark masses for the Wilson quark action obtained with the PCAC relation for the one-link extended axial vector current in quenched QCD at $β=5.9-…
Quenched Light Hadron Spectrum
PACS Collaboration, S. Aoki, G. Boyd +13
We present results of a large-scale simulation for the flavor non-singlet light hadron spectrum in quenched lattice QCD with the Wilson quark action. Hadron masses are calculated a…
A note on Rome-Southampton Renormalization with Smeared Gauge Fields
R. Arthur, P. A. Boyle, S. Hashimoto +1
We have calculated continuum limit step scaling functions of bilinear and four-fermion operators renormalized in a Rome-Southampton scheme using various smearing prescriptions for…
FLAG Review 2019
S. Aoki, Y. Aoki, D. Becirevic +32
We review lattice results related to pion, kaon, -meson, -meson, and nucleon physics with the aim of making them easily accessible to the nuclear and particle physics communi…
JLQCD's dynamical overlap project
JLQCD Collaboration, T. Kaneko, S. Aoki +11
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 act…
Light hadron spectrum in three-flavor QCD with O(a)-improved Wilson quark action
CP-PACS, JLQCD Collaboration, : +15
We report on a calculation of the light hadron spectrum and quark masses in three-flavor dynamical QCD using the non-perturbatively O(a)-improved Wilson quark action and a renormal…
An exact algorithm for three-flavor QCD with -improved Wilson fermions
JLQCD Collaboration, S. Aoki, R. Burkhalter +15
We present an exact dynamical QCD simulation algorithm for the -improved Wilson fermion with odd number of flavors. Our algorithm is an extension of the non-Hermitian polynom…
Analysis of short-distance current correlators using OPE
M. Tomii, G. Cossu, B. Fahy +3
We investigate the correlators of flavor non-singlet bilinear operators calculated on the lattice at short distances. In the continuum theory, non-perturbative effects are encoded…
Non-perturbative improvement of the axial current with three dynamical flavors and the Iwasaki gauge action
T. Kaneko, S. Aoki, M. Della Morte +3
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…
Sea Quark Effects on Quarkonia
PACS Collaboration, T. Manke, A. Ali Khan +15
We study the effects of two dynamical sea quarks on the spectrum of heavy quarkonia. Within the non-relativistic approach to Lattice QCD we found sizeable changes to the hyperfine…
The B -> D* l nu Form Factor at Zero Recoil
J. N. Simone, S. Hashimoto, A. X. El-Khadra +3
We describe a model independent lattice QCD method for determining the deviation from unity for h_{A1}(1), the B -> D* l nu form factor at zero recoil. We extend the double ratio m…
B -> D l nu form factors and the determination of |Vcb|
S. Hashimoto, A. X. El-Khadra, A. S. Kronfeld +3
The zero recoil limit of the B -> D l nu form factors is calculated on the lattice, which provides a model-independent determination of |Vcb|. Considering a ratio of form factors,…
Topological Susceptibility in Lattice QCD with Two Flavors of Dynamical Quarks
PACS Collaboration, A. Ali Khan, S. Aoki +15
We present a study of the topological susceptibility in lattice QCD with two degenerate flavors of dynamical quarks. The topological charge is measured on gauge configurations gene…
Light hadron spectroscopy with two flavors of -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…
Non-Perturbative Determination of in Three-flavor Dynamical QCD
CP-PACS, JLQCD Collaborations, : +17
We present a fully non-perturbative determination of the improvement coefficient in three-flavor dynamical QCD for the RG improved as well as the plaquette gaug…
Equation of state for pure SU(3) gauge theory with RG improved action
PACS Collaboration, A. Ali Khan, S. Aoki +15
We present results for the equation of state for pure SU(3) gauge theory obtained with a renormalization-group (RG) improved action. The energy density and pressure are calculated…
Non-perturbative renormalization factors of bilinear quark operators for Kogut-Susskind fermions and light quark masses in quenched QCD
JLQCD Collaboration, S. Aoki, M. Fukugita +15
Light quark masses are computed for Kogut-Susskind fermions by evaluating non-perturbatively the renormalization factor for bilinear quark operators. Calculations are carried out i…
Topological susceptibility in 2-flavor lattice QCD with fixed topology
T. W. Chiu, S. Aoki, H. Fukaya +8
We determine the topological susceptibility in the trivial topological sector generated by lattice simulations of two-flavor QCD with overlap Dirac fermion, on a $16^3 \ti…
Physics at Super B Factory
T. Aushev, W. Bartel, A. Bondar +70
This report presents the results of studies that investigate the physics reach at a Super factory, an asymmetric-energy collider with a design luminosity of $8 \times…
The Kaon B-parameter with the Wilson Quark Action using Chiral Ward Identities
JLQCD Collaboration, S. Aoki, M. Fukugita +8
We present a detailed description of the method and results of our calculation of the kaon B parameter using the Wilson quark action in quenched QCD at . The mixing pro…
Nucleon strange quark content from two-flavor lattice QCD with exact chiral symmetry
JLQCD collaboration, K. Takeda, S. Aoki +4
Strange quark content of the nucleon is calculated in dynamical lattice QCD employing the overlap fermion formulation. For this quantity, exact chiral symmetry guaranteed by the Gi…
Chiral susceptibility and axial U(1) anomaly near the (pseudo-)critical temperature
S. Aoki, Y. Aoki, H. Fukaya +6
We investigate relations between the chiral susceptibility and axial anomaly in lattice QCD at high temperatures. Employing the exactly chiral symmetric Dirac operator, we s…
Light hadron spectrum with two flavors of improved dynamical quarks : final results from JLQCD
JLQCD Collaboration, T. Kaneko, S. Aoki +13
We present the final results of the JLQCD calculation of the light hadron spectrum and quark masses with two flavors of dynamical quarks using the plaquette gauge action and fully…
Lattice gauge action suppressing near-zero modes of H_W
JLQCD collaboration, H. Fukaya, S. Hashimoto +5
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…
semileptonic decays in lattice QCD with domain-wall heavy quarks
T. Kaneko, Y. Aoki, B. Colquhoun +5
We calculate the form factors in 2+1 flavor relativistic lattice QCD by employing the Möbius domain-wall action for all quark flavors. Our simulations are…
Chiral properties of domain-wall quarks in quenched QCD
PACS Collaboration, A. Ali Khan, S. Aoki +19
We investigate the chiral properties of quenched domain-wall QCD (DWQCD) at the lattice spacings and 2 GeV for both plaquette and renormalization-group (RG) impro…
Review of lattice results concerning low-energy particle physics
S. Aoki, Y. Aoki, D. Becirevic +29
We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle physics community. More specifically, we repor…
Pion form factor from all-to-all propagators of overlap quarks
JLQCD collaboration, T. Kaneko, H. Fukaya +5
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…
B_K with the Wilson Quark Action: A Non-Perturbative Resolution of Operator Mixing using Chiral Ward Identities
JLQCD Collaboration, S. Aoki, M. Fukugita +9
We propose a non-perturbative method to determine the mixing coefficients of four-quark operators for the Wilson quark action using chiral Ward identities. The method is ap…
Challenges in Semileptonic B Decays
P. Gambino, A. S. Kronfeld, M. Rotondo +22
Two of the elements of the Cabibbo-Kobayashi-Maskawa quark mixing matrix, and , are extracted from semileptonic B decays. The results of the B factories, analy…
Lattice study of vacuum polarization function and determination of strong coupling constant
E. Shintani, S. Aoki, T. W. Chiu +7
We calculate the vacuum polarization functions on the lattice using the overlap fermion formulation.By matching the lattice data at large momentum scales with the perturbative expa…
Light hadron spectrum and quark masses in QCD with two flavors of dynamical quarks
PACS Collaboration, A. Ali Khan, S. Aoki +16
We present updated results of the CP-PACS calculation of the light hadron spectrum in full QCD. Simulations are made with an RG-improved gauge action and a tadpole-im…
Full QCD simulation on CP-PACS
S. Aoki, G. Boyd, R. Burkhalter +9
A status report is made of an on-going full QCD study on the CP-PACS aiming at a comparative analysis of the effects of improving gauge and quark actions on hadronic quantities and…
The static quark potential in full QCD
PACS Collaboration, S. Aoki, G. Boyd +12
We report results on the static quark potential in two-flavor full QCD. The calculation is performed for three values of lattice spacing and 2.5 GeV on $12…
Chiral extrapolation of light-light and heavy-light decay constants in unquenched QCD
JLQCD collaboration, S. Hashimoto, S. Aoki +12
We test the one-loop chiral perturbation theory formula on unquenched lattice data of pseudoscalar meson decay constants. The chiral extrapolation including the effect of the chira…
The CKM Matrix and the Unitarity Triangle
M. Battaglia, A. J. Buras, P. Gambino +37
This report contains the results of the Workshop on the CKM Unitarity Triangle, held at CERN on 13-16 February 2002 to study the determination of the CKM matrix from the available…
Full QCD light hadron spectrum from the CP-PACS
PACS Collaboration, S. Aoki, G. Boyd +13
We report on an on-going two-flavor full QCD study on CP-PACS using an RG-improved gauge action and a tadpole-improved SW quark action. Runs are made for three lattice spacings $a^…
A lattice NRQCD calculation of the mixing parameter B_B
S. Hashimoto, K-I. Ishikawa, H. Matsufuru +2
We present a lattice calculation of the B meson B-parameter B_B using the NRQCD action. The heavy quark mass dependence is explicitly studied over a mass range between m_b and 4m_b…
Pion form factors from two-flavor lattice QCD with exact chiral symmetry
JLQCD, TWQCD collaborations, : +11
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}. Numerical simulations are carri…
CP-PACS results for quenched QCD spectrum with the Wilson action
S. Aoki, G. Boyd, R. Burkhalter +8
We present progress report of a CP-PACS calculation of quenched QCD spectrum with the Wilson quark action. Light hadron masses and meson decay constants are obtained at 5.9, 6…
Two-flavor QCD simulation with exact chiral symmetry
JLQCD Collaboration, S. Aoki, H. Fukaya +11
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…
Study of the axial U(1) anomaly at high temperature with lattice chiral fermions
S. Aoki, Y. Aoki, G. Cossu +5
We investigate the axial U(1) anomaly of two-flavor QCD at temperatures 190--330 MeV. In order to preserve precise chiral symmetry on the lattice, we employ the Mobius domain-wall…
Workshop on Precision Measurements of alphas
S. Bethke, A. H. Hoang, S. Kluth +32
These are the proceedings of the "Workshop on Precision Measurements of alphas" held at the Max-Planck-Institute for Physics, Munich, February 9-11, 2011. The workshop explored in…
O(a^2) improvement of the overlap-Dirac operator
H. Ikeda, S. Hashimoto
We construct an -improved overlap-Dirac operator by designing an improved overlap kernel, based on the Symanzik improvement program. Field rotation terms are also identifie…
Heavy quark expansion parameters from lattice NRQCD
JLQCD Collaboration, S. Aoki, M. Fukugita +12
We present a lattice QCD calculation of the heavy quark expansion parameters and for heavy-light mesons and heavy-light-light baryons. The calculation is carried…
Differential decay rate for semileptonic decays
JLQCD Collaboration, S. Aoki, R. Burkhalter +15
We present our study on semileptonic decay form factors with NRQCD action for heavy quark from a quenched lattice QCD simulation at =5.9 on a lat…
Renormalization of the ÎB=2 four-quark operators in lattice NRQCD
S. Hashimoto, K-I. Ishikawa, T. Onogi +3
We calculate perturbative renormalization constants for the ÎB=2 four-quark operators in lattice NRQCD. Continuum operators \bar{b}γ_μ(1-γ_5)q~ \bar{b}γ_μ(1-γ_5)q and \bar{b…
The Kaon B-parameter with the Wilson Quark Action using Chiral Ward Identities
S. Aoki, M. Fukugita, S. Hashimoto +7
A lattice QCD calculation of the kaon parameter is carried out with the Wilson quark action in the quenched approximation at . The mixing problem of the…
Two-Flavor Chiral Phase Transition in Lattice QCD with the Kogut-Susskind Quark Action
JLQCD Collaboration, S. Aoki, M. Fukugita +9
A summary is presented of a scaling study of the finite-temperature chiral phase transition of two-flavor QCD with the Kogut-Susskind quark action based on simulations on $L^3\time…
What is chiral susceptibility probing?
JLQCD collaboration, S. Aoki, Y. Aoki +4
In the early days of QCD, the axial anomaly was considered as a trigger for the breaking of the symmetry through topological excitations of gluon fie…
Quenched Light Hadron Spectrum with the Wilson Quark Action: Final Results from CP-PACS
PACS Collaboration, S. Aoki, G. Boyd +13
We report the final results of the CP-PACS calculation for the quenched light hadron spectrum with the Wilson quark action. Our data support the presence of quenched chiral singula…
Decay constants of B and D mesons from improved relativistic lattice QCD with two flavours of sea quarks
PACS Collaboration, A. Ali Khan, S. Aoki +15
We present a calculation of the B and D meson decay constants in lattice QCD with two (Nf=2) flavours of light dynamical quarks, using an O(a)-improved Wilson action for both light…
Non-perturbative renormalization of bilinear operators with dynamical overlap fermions
J. Noaki, T. W. Chiu, H. Fukaya +5
Using the non-perturbative renormalization technique, we calculate the renormalization factors for quark bilinear operators made of overlap fermions on the lattice. The background…
Topology density correlator on dynamical domain-wall ensembles with nearly frozen topological charge
JLQCD collaboration, H. Fukaya, S. Aoki +4
Global topological charge decorrelates very slowly or even freezes in fine lattice simulations. On the other hand, its local fluctuations are expected to survive and lead to the co…
Chiral behavior of light meson form factors in 2+1 flavor QCD with exact chiral symmetry
JLQCD Collaboration, T. Kaneko, S. Aoki +6
We present a study of chiral behavior of light meson form factors in QCD with three flavors of overlap quarks. Gauge ensembles are generated at single lattice spacing 0.12 fm with…
B-Bbar mixing in unquenched lattice QCD
JLQCD Collaboration, S. Aoki, M. Fukugita +13
We present an unquenched lattice calculation for the transition amplitude. The calculation, carried out at an inverse lattice spacing = 2.22(4) GeV, incorpora…
Perturbative renormalization of the four-quark operators in lattice NRQCD
S. Hashimoto, K-I. Ishikawa, T. Onogi +3
We present a perturbative calculation of the renormalization constants for the four-quark operators, which is needed to evaluate the bag parameters and in latti…
Stochastic calculation of the QCD Dirac operator spectrum with Mobius domain-wall fermion
G. Cossu, H. Fukaya, S. Hashimoto +2
We calculate the spectral function of the QCD Dirac operator using the four-dimensional effective operator constructed from the Mobius domain-wall implementation. We utilize the ei…
Hybrid Quarkonia with Dynamical Sea Quarks
PACS Collaboration, T. Manke, A. Ali Khan +15
We present a dynamical lattice calculation with 2 flavours for bottomonium states with an additional gluonic excitation. Using improved actions for the quarks and gauge fields at a…
Strong coupling constant from vacuum polarization functions in three-flavor lattice QCD with dynamical overlap fermions
E. Shintani, S. Aoki, H. Fukaya +4
We determine the strong coupling constant from a lattice calculation of vacuum polarization functions (VPF) in three-flavor QCD with dynamical overlap fermions. Fitting latt…
form factors from lattice QCD with relativistic heavy quarks
T. Kaneko, Y. Aoki, G. Bailas +4
We report on our calculation of the B \to D^(*) \ell νform factors in 2+1 flavor lattice QCD. The Möbius domain-wall action is employed for light, strange, charm and bottom quark…
Two-flavor lattice QCD in the epsilon-regime and chiral Random Matrix Theory
JLQCD, TWQCD collaboration, : +10
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 correspondenc…
Equation of state for pure SU(3) gauge theory on anisotropic lattices
PACS Collaboration, S. Aoki, R. Burkhalter +15
We present results for the equation of state for pure SU(3) gauge theory obtained on anisotropic lattices with the anisotropy . The pressure and energy densit…
Light Hadron Spectrum and Quark Masses from Quenched Lattice QCD
PACS Collaboration, S. Aoki, G. Boyd +13
We present details of simulations for the light hadron spectrum in quenched QCD carried out on the CP-PACS parallel computer. Simulations are made with the Wilson quark action and…
Full QCD Light Hadron Spectrum and Quark Masses: Final Results from CP-PACS
PACS Collaboration, A. Ali Khan, S. Aoki +16
We present the final results of the CP-PACS calculation of the light hadron spectrum and quark masses with two flavors of dynamical quarks. Simulations are made with a renormalizat…