K. Imai

activity

20072026

most citedMeasurements of elliptic and triangular flow in high-multiplicity

^{3}

+

Au collisions at

s_{_{N N}} = 200

GeV

170 citations · 393 across the 23 of their papers we have counts for

collaborators

Showing nucl-exShow all

19 papers · 1 filter

nucl-ex2026

Elliptic flow of $π^{0}$ mesons in Cu $+$ Au collisions at $s_{_{N N}} = 200$ GeV and U $+$ U at $s_{_{N N}} = 193$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +379

The second-order azimuthal anisotropy coefficients ( $v_{2}$ ) of neutral $π$ mesons ( $π^{0}$ ) have been measured as a function of the transverse momentum ( $p_{T}$ ) and centrality of Cu $+$ …

nucl-ex2025

Low-mass vector-meson production at forward rapidity in $p$ $+$ $p$ and Au $+$ Au collisions at $s_{_{N N}} = 200$ ~GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +352

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low-mass vector-meson ( $ω + ρ$ and $ϕ$ ) production through the dimuon decay channel at forward rapidity $(1.…

nucl-ex2025

Measurement of $Λ$ Polarization in the $π^{-} p \to K^{0} Λ$ Reaction at $p_{π^{-}} = 1.33$ GeV/ $c$ toward a New $Λ p$ Scattering Experiment

PARC E40 Collaboration, T. Sakao, K. Miwa +69

This paper presents high-precision experimental data of the polarization of the $Λ$ hyperon in the $π^{-} p \to K^{0} Λ$ reaction, measured in the angular range $0.6<\cos θ^{CM}_{K0…

nucl-ex2025

Azimuthal anisotropy of direct photons in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +322

The PHENIX experiment at the Relativistic Heavy Ion Collider measured the second Fourier component $v_{2}$ of the direct-photon azimuthal anisotropy at midrapidity in Au $+$ Au collisi…

nucl-ex2024

Measurement of elliptic flow of J $/ ψ$ in $s_{_{N N}} = 200$ GeV Au $+$ Au collisions at forward rapidity

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +365

We report the first measurement of the azimuthal anisotropy of J $/ ψ$ at forward rapidity ( $1.2 < ∣ η ∣ < 2.2$ ) in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV at the Relativistic Hea…

nucl-ex2022★ 13 cited

Measurement of $ϕ$ -meson production in Cu $+$ Au at $s_{_{N N}} = 200$ GeV and U $+$ U at $s_{_{N N}} = 193$ GeV

N. J. Abdulameer, U. Acharya, C. Aidala +408

The PHENIX experiment reports systematic measurements at the Relativistic Heavy Ion Collider of $ϕ$ -meson production in asymmetric Cu $+$ Au collisions at $s_{_{N N}}$ =200 GeV…

nucl-ex2022★ 20 cited

Nonprompt direct-photon production in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

U. A. Acharya, A. Adare, C. Aidala +332

The measurement of the direct-photon spectrum from Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV is presented by the PHENIX collaboration using the external-photon-conversion te…

nucl-ex2022★ 3 cited

Charm- and Bottom-Quark Production in Au $+$ Au Collisions at $s_{_{N N}}$ = 200 GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +342

The invariant yield of electrons from open-heavy-flavor decays for $1 < p_{T} < 8$ GeV/ $c$ at midrapidity $∣ y ∣ < 0.35$ in Au $+$ Au collisions at $s_{_{N N}}$ = 200 GeV has been measur…

nucl-ex2022

Measurements of second-harmonic Fourier coefficients from azimuthal anisotropies in $p$ $+$ $p$ , $p$ $+$ Au, $d$ $+$ Au, and $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV

N. J. Abdulameer, U. Acharya, A. Adare +389

Recently, the PHENIX Collaboration has published second- and third-harmonic Fourier coefficients $v_{2}$ and $v_{3}$ for midrapidity ( $∣ η ∣ < 0.35$ ) charged hadrons in 0\%--5\% central $p…

nucl-ex2022

Measurement of differential cross sections for $Σ^{+} p$ elastic scattering in the momentum range 0.44-0.80 GeV/c

PARC E40 Collaboration, T. Nanamura, K. Miwa +69

We performed a novel $Σ^{+} p$ scattering experiment at the J-PARC Hadron Experimental Facility. Approximately 2400 $Σ^{+} p$ elastic scattering events were identified from $4.9 \times…

nucl-ex2022★ 11 cited

Study of $ϕ$ -meson production in $p$ $+$ Al, $p$ $+$ Au, $d$ $+$ Au, and $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV

U. Acharya, A. Adare, C. Aidala +367

Small nuclear collisions are mainly sensitive to cold-nuclear-matter effects; however, the collective behavior observed in these collisions shows a hint of hot-nuclear-matter effec…

nucl-ex2022★ 2 cited

Measurement of $ψ (2 S)$ nuclear modification at backward and forward rapidity in $p$ $+$ $p$ , $p$ $+$ Al, and $p$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV

U. A. Acharya, C. Aidala, Y. Akiba +313

Suppression of the $J / ψ$ nuclear-modification factor has been seen as a trademark signature of final-state effects in large collision systems for decades. In small systems, the nuc…

nucl-ex2021★ 2 cited

Precise measurement of differential cross sections of the Σ-p --> Λ n reaction in momentum range 470-650 MeV/c

PARC E40 Collaboration, K. Miwa, J. K. Ahn +69

The differential cross sections of the Σ-p --> Λ n reaction were measured accurately for the Σ- momentum (p_{Σ}) ranging from 470 to 650 MeV/c at the J-PARC Hadron Experimental Fac…

nucl-ex2021★ 1 cited

Measurement of the differential cross sections of the Sigma-p elastic scattering in momentum range of 470 to 850 MeV/c

PARC E40 Collaboration, K. Miwa, J. K. Ahn +69

A high statistics $Σ p$ scattering experiment has been performed at the J-PARC Hadron Experimental Facility. Data for momentum-tagged $Σ^{-}$ running in a liquid hydrogen target wer…

nucl-ex2018★ 55 cited

Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

H. Ekawa, K. Agari, J. K. Ahn +100

A double- $Λ$ hypernucleus, $_{ΛΛ} Be$ , was observed by the J-PARC E07 collaboration in nuclear emulsions tagged by the $(K^{-}, K^{+})$ reaction. This event was interprete…

nucl-ex2017★ 19 cited

First Determination of Level Structure of an $s d$ -Shell Hypernucleus, $_{Λ}^{19} F$

S. B. Yang, J. K. Ahn, Y. Akazawa +45

We report on the first observation of $γ$ rays emitted from an $s d$ -shell hypernucleus, $_{Λ}^{19} F$ . The energy spacing between the ground state doublet, $1/ 2^{+}$ and $3/ 2^{+}$ …

nucl-ex2015★ 69 cited

Centrality-dependent modification of jet-production rates in deuteron-gold collisions at $s_{N N}$ =200 GeV

A. Adare, C. Aidala, N. N. Ajitanand +481

Jet production rates are measured in $p$ $+$ $p$ and $d$ $+$ Au collisions at $s_{N N}$ =200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider.…

nucl-ex2015★ 170 cited

Measurements of elliptic and triangular flow in high-multiplicity $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV

A. Adare, S. Afanasiev, C. Aidala +627

We present the first measurement of elliptic ( $v_{2}$ ) and triangular ( $v_{3}$ ) flow in high-multiplicity $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV. Two-particle correlati…

nucl-ex2007★ 24 cited

Search for Theta+ via K+p -> pi+X reaction with a 1.2 GeV/c K+ beam

K. Miwa, S. Dairaku, D. Nakajima

The Theta+ was searched for via the K+p -> pi+X reaction using the 1.2 GeV/c K+ beam at the K6 beam line of the KEK-PS 12 GeV Proton Synchrotron. In the missing mass spectrum of th…

Elliptic flow of π0 mesons in Cu+Au collisions at sNN​​​=200 GeV and U+U at sNN​​​=193 GeV

Low-mass vector-meson production at forward rapidity in p+p and Au+Au collisions at sNN​​​=200~GeV

Measurement of Λ Polarization in the π−p→K0Λ Reaction at pπ−​=1.33 GeV/c toward a New Λp Scattering Experiment

Azimuthal anisotropy of direct photons in Au+Au collisions at sNN​​​=200 GeV

Measurement of elliptic flow of J/ψ in sNN​​​=200 GeV Au+Au collisions at forward rapidity

Measurement of ϕ-meson production in Cu+Au at sNN​​​=200 GeV and U+U at sNN​​​=193 GeV

Nonprompt direct-photon production in Au+Au collisions at sNN​​​=200 GeV

Charm- and Bottom-Quark Production in Au+Au Collisions at sNN​​​ = 200 GeV

Measurements of second-harmonic Fourier coefficients from azimuthal anisotropies in p+p, p+Au, d+Au, and 3He+Au collisions at sNN​​​=200 GeV

Measurement of differential cross sections for Σ+p elastic scattering in the momentum range 0.44-0.80 GeV/c

Study of ϕ-meson production in p+Al, p+Au, d+Au, and 3He+Au collisions at sNN​​​=200 GeV

Measurement of ψ(2S) nuclear modification at backward and forward rapidity in p+p, p+Al, and p+Au collisions at sNN​​​=200 GeV

Precise measurement of differential cross sections of the Σ-p --> Λ n reaction in momentum range 470-650 MeV/c

Measurement of the differential cross sections of the Sigma-p elastic scattering in momentum range of 470 to 850 MeV/c

Observation of a Be double-Lambda hypernucleus in the J-PARC E07 experiment

First Determination of Level Structure of an sd-Shell Hypernucleus, Λ19​F

Centrality-dependent modification of jet-production rates in deuteron-gold collisions at sNN​​=200 GeV

Measurements of elliptic and triangular flow in high-multiplicity 3He+Au collisions at sNN​​​=200 GeV

Search for Theta+ via K+p -> pi+X reaction with a 1.2 GeV/c K+ beam

Elliptic flow of $π^{0}$ mesons in Cu $+$ Au collisions at $s_{_{N N}} = 200$ GeV and U $+$ U at $s_{_{N N}} = 193$ GeV

Low-mass vector-meson production at forward rapidity in $p$ $+$ $p$ and Au $+$ Au collisions at $s_{_{N N}} = 200$ ~GeV

Measurement of $Λ$ Polarization in the $π^{-} p \to K^{0} Λ$ Reaction at $p_{π^{-}} = 1.33$ GeV/ $c$ toward a New $Λ p$ Scattering Experiment

Azimuthal anisotropy of direct photons in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

Measurement of elliptic flow of J $/ ψ$ in $s_{_{N N}} = 200$ GeV Au $+$ Au collisions at forward rapidity

Measurement of $ϕ$ -meson production in Cu $+$ Au at $s_{_{N N}} = 200$ GeV and U $+$ U at $s_{_{N N}} = 193$ GeV

Nonprompt direct-photon production in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

Charm- and Bottom-Quark Production in Au $+$ Au Collisions at $s_{_{N N}}$ = 200 GeV

Measurements of second-harmonic Fourier coefficients from azimuthal anisotropies in $p$ $+$ $p$ , $p$ $+$ Au, $d$ $+$ Au, and $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV

Measurement of differential cross sections for $Σ^{+} p$ elastic scattering in the momentum range 0.44-0.80 GeV/c

Study of $ϕ$ -meson production in $p$ $+$ Al, $p$ $+$ Au, $d$ $+$ Au, and $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV

Measurement of $ψ (2 S)$ nuclear modification at backward and forward rapidity in $p$ $+$ $p$ , $p$ $+$ Al, and $p$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV

First Determination of Level Structure of an $s d$ -Shell Hypernucleus, $_{Λ}^{19} F$

Centrality-dependent modification of jet-production rates in deuteron-gold collisions at $s_{N N}$ =200 GeV

Measurements of elliptic and triangular flow in high-multiplicity $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV