K. Nagai

activity

19962024

most citedCreating small circular, elliptical, and triangular droplets of quark-gluon plasma

317 citations · 2k across the 41 of their papers we have counts for

collaborators

41 papers

hep-ex2024★ 2 cited

Measurement of the branching fraction of the decay $B^{-} \to D^{0} ρ (770)^{-}$ at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +389

We measure the branching fraction of the decay $B^{-} \to D^{0} ρ (770)^{-}$ using data collected with the Belle II detector. The data contain 387 million $B B$ pairs produced i…

hep-ex2021★ 16 cited

Probing gluon spin-momentum correlations in transversely polarized protons through midrapidity isolated direct photons in $p^{↑} + p$ collisions at $s = 200$ GeV

U. A. Acharya, C. Aidala, Y. Akiba +308

Studying spin-momentum correlations in hadronic collisions offers a glimpse into a three-dimensional picture of proton structure. The transverse single-spin asymmetry for midrapidi…

hep-ex2020★ 5 cited

Transverse momentum dependent forward neutron single spin asymmetries in transversely polarized $p$ $+$ $p$ collisions at $s = 200$ GeV

U. A. Acharya, C. Aidala, Y. Akiba +311

In 2015, the PHENIX collaboration has measured very forward ( $η > 6.8$ ) single-spin asymmetries of inclusive neutrons in transversely polarized proton-proton and proton-nucleus colli…

hep-ex2020★ 14 cited

Transverse single-spin asymmetries of midrapidity $π^{0}$ and $η$ mesons in polarized $p$ $+$ $p$ collisions at $s = 200$ GeV

U. A. Acharya, C. Aidala, Y. Akiba +311

We present a measurement of the transverse single-spin asymmetry for $π^{0}$ and $η$ mesons in $p^{↑}$ $+$ $p$ collisions in the pseudorapidity range $∣ η ∣ < 0.35$ and at a center-of…

hep-ex2019★ 24 cited

Nuclear-modification factor of charged hadrons at forward and backward rapidity in $p$ $+$ Al and $p$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV

C. Aidala, Y. Akiba, M. Alfred +300

The PHENIX experiment has studied nuclear effects in $p$ $+$ Al and $p$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV on charged hadron production at forward rapidity ( $1.4 < η < 2.4$ , $…

nucl-ex2018★ 317 cited

Creating small circular, elliptical, and triangular droplets of quark-gluon plasma

C. Aidala, Y. Akiba, M. Alfred +316

The experimental study of the collisions of heavy nuclei at relativistic energies has established the properties of the quark-gluon plasma (QGP), a state of hot, dense nuclear matt…

hep-lat2005★ 41 cited

The Kaon B-parameter from Quenched Domain-Wall QCD

Y. Aoki, T. Blum, N. H. Christ +8

We present numerical results for the kaon B-parameter, B_K, determined in the quenched approximation of lattice QCD. Our simulations are performed using domain-wall fermions and th…

hep-lat2002★ 104 cited

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…

hep-lat2001★ 117 cited

Charmonium Spectrum from Quenched Anisotropic Lattice QCD

PACS Collaboration, M. Okamoto, S. Aoki +16

We present a detailed study of the charmonium spectrum using anisotropic lattice QCD. We first derive a tree-level improved clover quark action on the anisotropic lattice for arbit…

hep-lat2001★ 4 cited

Calculation of $K \to π π$ decay amplitudes from $K \to π$ matrix elements in quenched domain-wall QCD

PACS Collaboration, S. Aoki, Y. Aoki +17

We present a calculation of the $K \to π π$ decay amplitudes from the $K \to π$ matrix elements using leading order relations derived in chiral perturbation theory. Numerical simulation…

hep-lat2001

Charmonium spectrum from quenched QCD on anisotropic lattices

PACS Collaboration, S. Aoki, R. Burkhalter +15

We present our final results of the charmonium spectrum in quenched QCD on anisotropic lattices. Simulations are made with the plaquette gauge action and a tadpole improved clover…

hep-lat2001★ 70 cited

Calculation of Non-Leptonic Kaon Decay Amplitudes from $K \to π$ Matrix Elements in Quenched Domain-Wall QCD

PACS Collaboration, J. Noaki, S. Aoki +17

We explore application of the domain wall fermion formalism of lattice QCD to calculate the $K \to π π$ decay amplitudes in terms of the $K \to π$ and $K \to 0$ hadronic matrix elements…

hep-lat2001★ 30 cited

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…

hep-lat2001★ 75 cited

Kaon B parameter from quenched domain-wall QCD

PACS Collaboration, A. Ali Khan, S. Aoki +17

We report on a calculation of $B_{K}$ with domain wall fermion action in quenched QCD. Simulations are made with a renormalization group improved gauge action at $β = 2.6$ and 2.9 corr…

hep-lat2001★ 249 cited

Light Hadron Spectroscopy with Two Flavors of Dynamical Quarks on the Lattice

PACS Collaboration, A. Ali Khan, S. Aoki +16

We present results of a numerical calculation of lattice QCD with two degenerate flavors of dynamical quarks, identified with up and down quarks, and with a strange quark treated i…

hep-lat2001★ 47 cited

B meson decay constant from two-flavor lattice QCD with non-relativistic heavy quarks

PACS Collaboration, A. Ali Khan, S. Aoki +15

We present a study of leptonic $B$ meson decay constants in lattice QCD with two flavors ( $N_{f} = 2$ ) of light dynamical quarks using NRQCD for the heavy quark. Gauge configurations a…

hep-lat2001★ 17 cited

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…

hep-lat2000★ 13 cited

Kaon B parameter from quenched domain-wall QCD

PACS Collaboration, A. Ali Khan, S. Aoki +18

We report on a calculation of $B_{K}$ with domain wall fermion action in quenched QCD. Simulations are made with a renormalization group improved gauge action at $β = 2.6$ and 2.9 corr…

hep-ex2000★ 17 cited

Production rate of bb(bar) quark pairs from gluons and bb(bar)bb(bar) events in hadronic Z Decays

The OPAL collaboration, G. Abbiendi

The rates are measured per hadronic Z decay for gluon splitting to bb(bar) quark pairs, g_bb, and of events containing two bb(bar) quark pairs, g_4b, using a sample of four-jet eve…

hep-lat2000★ 43 cited

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…

hep-lat2000★ 159 cited

Phase structure and critical temperature of two-flavor QCD with a renormalization group improved gauge action and clover improved Wilson quark action

PACS Collaboration, A. Ali Khan, S. Aoki +15

We study the finite-temperature phase structure and the transition temperature of QCD with two flavors of dynamical quarks on a lattice with the temporal size $N_{t} = 4$ , using a reno…

hep-lat2000★ 55 cited

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 $a^{- 1} ≃ 1$ and 2 GeV for both plaquette and renormalization-group (RG) impro…

hep-lat2000★ 39 cited

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…

hep-lat1999

Heavy-light spectrum and decay constant from NRQCD with two flavors of dynamical quarks

PACS Collaboration, A. Ali Khan, S. Aoki +14

We report on a study of B mesons on N_f = 2 full QCD configurations using an RG-improved gauge action, NRQCD heavy quark action and tadpole-improved clover light quark action. Resu…

Measurement of the branching fraction of the decay B−→D0ρ(770)− at Belle II

Probing gluon spin-momentum correlations in transversely polarized protons through midrapidity isolated direct photons in p↑+p collisions at s​=200 GeV

Transverse momentum dependent forward neutron single spin asymmetries in transversely polarized p+p collisions at s​=200 GeV

Transverse single-spin asymmetries of midrapidity π0 and η mesons in polarized p+p collisions at s​=200 GeV

Nuclear-modification factor of charged hadrons at forward and backward rapidity in p+Al and p+Au collisions at sNN​​​=200 GeV

Creating small circular, elliptical, and triangular droplets of quark-gluon plasma

The Kaon B-parameter from Quenched Domain-Wall QCD

Light Hadron Spectrum and Quark Masses from Quenched Lattice QCD

Charmonium Spectrum from Quenched Anisotropic Lattice QCD

Calculation of K→ππ decay amplitudes from K→π matrix elements in quenched domain-wall QCD

Charmonium spectrum from quenched QCD on anisotropic lattices

Calculation of Non-Leptonic Kaon Decay Amplitudes from K→π Matrix Elements in Quenched Domain-Wall QCD

Topological Susceptibility in Lattice QCD with Two Flavors of Dynamical Quarks

Kaon B parameter from quenched domain-wall QCD

Light Hadron Spectroscopy with Two Flavors of Dynamical Quarks on the Lattice

B meson decay constant from two-flavor lattice QCD with non-relativistic heavy quarks

Hybrid Quarkonia with Dynamical Sea Quarks

Kaon B parameter from quenched domain-wall QCD

Production rate of bb(bar) quark pairs from gluons and bb(bar)bb(bar) events in hadronic Z Decays

Decay constants of B and D mesons from improved relativistic lattice QCD with two flavours of sea quarks

Phase structure and critical temperature of two-flavor QCD with a renormalization group improved gauge action and clover improved Wilson quark action

Chiral properties of domain-wall quarks in quenched QCD

Sea Quark Effects on Quarkonia

Heavy-light spectrum and decay constant from NRQCD with two flavors of dynamical quarks

Measurement of the branching fraction of the decay $B^{-} \to D^{0} ρ (770)^{-}$ at Belle II

Probing gluon spin-momentum correlations in transversely polarized protons through midrapidity isolated direct photons in $p^{↑} + p$ collisions at $s = 200$ GeV

Transverse momentum dependent forward neutron single spin asymmetries in transversely polarized $p$ $+$ $p$ collisions at $s = 200$ GeV

Transverse single-spin asymmetries of midrapidity $π^{0}$ and $η$ mesons in polarized $p$ $+$ $p$ collisions at $s = 200$ GeV

Nuclear-modification factor of charged hadrons at forward and backward rapidity in $p$ $+$ Al and $p$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV

Calculation of $K \to π π$ decay amplitudes from $K \to π$ matrix elements in quenched domain-wall QCD

Calculation of Non-Leptonic Kaon Decay Amplitudes from $K \to π$ Matrix Elements in Quenched Domain-Wall QCD