K. Nagashima

activity

20152025

most citedMeasurements of elliptic and triangular flow in high-multiplicity

^{3}

+

Au collisions at

s_{_{N N}} = 200

GeV

170 citations · 539 across the 27 of their papers we have counts for

collaborators

28 papers

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

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…

hep-ex2024

Multiplicity dependent $J / ψ$ and $ψ (2 S)$ production at forward and backward rapidity in $p$ $+$ $p$ collisions at $s = 200$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +298

The $J / ψ$ and $ψ (2 S)$ charmonium states, composed of $c c ˉ$ quark pairs and known since the 1970s, are widely believed to serve as ideal probes to test quantum chromodynamics i…

nucl-ex2024★ 5 cited

Jet modification via $π^{0}$ -hadron correlations in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +532

High-momentum two-particle correlations are a useful tool for studying jet-quenching effects in the quark-gluon plasma. Angular correlations between neutral-pion triggers and charg…

hep-ex2023★ 4 cited

Transverse single-spin asymmetry of charged hadrons at forward and backward rapidity in polarized $p$ + $p$ , $p$ +Al, and $p$ +Au collisions at $s_{N N} = 200$ GeV}

N. J. Abdulameer, U. Acharya, C. Aidala +319

Reported here are transverse single-spin asymmetries ( $A_{N}$ ) in the production of charged hadrons as a function of transverse momentum ( $p_{T}$ ) and Feynman- $x$ ( $x_{F}$ ) in polarize…

hep-ex2023

Transverse single-spin asymmetry of midrapidity $π^{0}$ and $η$ mesons in $p$ +Au and $p$ +Al collisions at $s_{_{N N}} =$ 200 GeV

N. J. Abdulameer, U. Acharya, C. Aidala +319

Presented are the first measurements of the transverse single-spin asymmetries ( $A_{N}$ ) for neutral pions and eta mesons in $p$ +Au and $p$ +Al collisions at $s_{_{N N}} = 200$ Ge…

hep-ex2022

Improving constraints on gluon spin-momentum correlations in transversely polarized protons via midrapidity open-heavy-flavor electrons in $p^{↑} + p$ collisions at $s = 200$ GeV

N. J. Abdulameer, U. Acharya, C. Aidala +321

Polarized proton-proton collisions provide leading-order access to gluons, presenting an opportunity to constrain gluon spin-momentum correlations within transversely polarized pro…

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★ 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…

hep-ex2021★ 2 cited

Transverse-single-spin asymmetries of charged pions at midrapidity in transversely polarized $p + p$ collisions at $s = 200$ GeV

U. A. Acharya, C. Aidala, Y. Akiba +307

In 2015, the PHENIX collaboration has measured single-spin asymmetries for charged pions in transversely polarized proton-proton collisions at the center of mass energy of $\sqrt{s…

hep-ex2021★ 4 cited

Transverse single spin asymmetries of forward neutrons in $p$ $+$ $p$ , $p$ $+$ Al, and $p$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV as a function of transverse and longitudinal momenta

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

In 2015 the PHENIX collaboration at the Relativistic Heavy Ion Collider recorded $p$ $+$ $p$ , $p$ $+$ Al, and $p$ $+$ Au collision data at center of mass energies of $\sqrt{s_{_{NN}}}=20…

hep-ex2021★ 24 cited

Kinematic dependence of azimuthal anisotropies in $p$ $+$ Au, $d$ $+$ Au, $^{3}$ He+Au at $s_{_{N N}}$ = 200 GeV

U. A. Acharya, A. Adare, C. Aidala +378

There is strong evidence for the formation of small droplets of quark-gluon plasma in $p / d /^{3}$ He+Au collisions at the Relativistic Heavy Ion Collider (RHIC) and in $p$ + $p$ /Pb col…

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★ 17 cited

Measurement of charged pion double spin asymmetries at midrapidity in longitudinally polarized $p$ $+$ $p$ collisions at $s = 510$ GeV

U. A. Acharya, A. Adare, C. Aidala +357

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the longitudinal double spin asymmetries, $A_{LL}$ , for charged pions at midrapidity ( $∣ η ∣ < 0.35$ ) in longi…

hep-ex2019★ 10 cited

$J / ψ$ and $ψ (2 S)$ production at forward rapidity in $p$ + $p$ collisions at $s = 510$ GeV

U. A. Acharya, A. Adare, C. Aidala +357

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the differential cross section, mean transverse momentum, mean transverse momentum squared of inclusive $J…

hep-ex2019★ 25 cited

Measurement of $J / ψ$ at forward and backward rapidity in $p$ + $p$ , $p$ $+ A$ l, $p$ $+ A$ u, and $^{3}$ He+Au collisions at $s_{_{N N}} = 200 GeV$

U. A. Acharya, A. Adare, C. Aidala +358

Charmonium is a valuable probe in heavy-ion collisions to study the properties of the quark gluon plasma, and is also an interesting probe in small collision systems to study cold…

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 ( $1.4 < η < 2.4$ , $…

hep-ex2018★ 19 cited

Measurement of two-particle correlations with respect to second- and third-order event planes in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

A. Adare, S. Afanasiev, C. Aidala +453

We present measurements of azimuthal correlations of charged hadron pairs in $s_{_{N N}} = 200$ GeV Au $+$ Au collisions for the trigger and associated particle transverse-moment…

nucl-ex2017★ 35 cited

Measurements of mass-dependent azimuthal anisotropy in central $p$ $+$ Au, $d$ $+$ Au, and $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +349

We present measurements of the transverse-momentum dependence of elliptic flow $v_{2}$ for identified pions and (anti)protons at midrapidity ( $∣ η ∣ < 0.35$ ), in 0%--5% central $p$ $+$ Au…

nucl-ex2017★ 53 cited

Lévy-stable two-pion Bose-Einstein correlations in $s_{_{N N}} = 200$ GeV Au $+$ Au collisions

A. Adare, C. Aidala, N. N. Ajitanand +444

We present a detailed measurement of charged two-pion correlation functions in 0%-30% centrality $s_{_{N N}} = 200$ GeV Au $+$ Au collisions by the PHENIX experiment at the Relat…

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

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

Multiplicity dependent J/ψ and ψ(2S) production at forward and backward rapidity in p+p collisions at s​=200 GeV

Jet modification via π0-hadron correlations in Au+Au collisions at sNN​​​=200 GeV

Transverse single-spin asymmetry of charged hadrons at forward and backward rapidity in polarized p+p, p+Al, and p+Au collisions at sNN​​=200 GeV}

Transverse single-spin asymmetry of midrapidity π0 and η mesons in p+Au and p+Al collisions at sNN​​​= 200 GeV

Improving constraints on gluon spin-momentum correlations in transversely polarized protons via midrapidity open-heavy-flavor electrons in p↑+p collisions at s​=200 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

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

Transverse-single-spin asymmetries of charged pions at midrapidity in transversely polarized p+p collisions at s​=200 GeV

Transverse single spin asymmetries of forward neutrons in p+p, p+Al, and p+Au collisions at sNN​​​=200 GeV as a function of transverse and longitudinal momenta

Kinematic dependence of azimuthal anisotropies in p+Au, d+Au, 3He+Au at sNN​​​ = 200 GeV

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

Measurement of charged pion double spin asymmetries at midrapidity in longitudinally polarized p+p collisions at s​=510 GeV

J/ψ and ψ(2S) production at forward rapidity in p+p collisions at s​=510 GeV

Measurement of J/ψ at forward and backward rapidity in p+p, p+Al, p+Au, and 3He+Au collisions at sNN​​​=200 GeV

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

Measurement of two-particle correlations with respect to second- and third-order event planes in Au+Au collisions at sNN​​​=200 GeV

Measurements of mass-dependent azimuthal anisotropy in central p+Au, d+Au, and 3He+Au collisions at sNN​​​=200 GeV

Lévy-stable two-pion Bose-Einstein correlations in sNN​​​=200 GeV Au+Au collisions