T. Niida

activity

20102026

Λ

hyperon polarization in nuclear collisions: evidence for the most vortical fluid

920 citations · 6.8k across the 204 of their papers we have counts for

collaborators

Showing 2018Show all

24 papers · 1 filter

nucl-ex2018★ 111 cited

Centrality and transverse momentum dependence of $D^{0}$ -meson production at mid-rapidity in Au+Au collisions at $s_{NN} = 200 GeV$

STAR Collaboration, J. Adam, L. Adamczyk +347

We report a new measurement of $D^{0}$ -meson production at mid-rapidity ( $∣ y ∣$ \, $<$ \,1) in Au+Au collisions at $s_{NN} = 200 GeV$ utilizing the Heavy Flavor Tracke…

hep-ex2018★ 38 cited

Measurement of the longitudinal spin asymmetries for weak boson production in proton-proton collisions at $s$ = 510 GeV

STAR Collaboration, J. Adam, L. Adamczyk +345

We report new STAR measurements of the single-spin asymmetries $A_{L}$ for $W^{+}$ and $W^{-}$ bosons produced in polarized proton--proton collisions at $s$ = 510 GeV as a functio…

nucl-ex2018★ 5 cited

Measurements of Dielectron Production in Au $+$ Au Collisions at $s_{N N}$ = 27, 39, and 62.4 GeV from the STAR Experiment

STAR Collaboration, J. Adam, L. Adamczyk +350

We report systematic measurements of dielectron ( $e^{\pm} e^{\pm}$ ) invariant-mass $M_{ee}$ spectra at mid-rapidity in Au+Au collisions at $s_{N N}$ = 27, 39, and 62.4 GeV tak…

nucl-ex2018★ 1 cited

Erratum: Observation of $D^{0}$ meson nuclear modifications in Au+Au collisions at $s_{_{NN}}$ = 200 GeV

STAR Collaboration, J. Adam, L. Adamczyk +346

In this erratum we report changes on the $D^{0}$ $p_{T}$ spectra and nuclear modification factor ( $R_{AA}$ ) in Au+Au collisions at $s_{_{NN}}$ = 200 GeV by fixing the e…

hep-ex2018★ 8 cited

Nonperturbative transverse momentum broadening in dihadron angular correlations in $s_{N N} = 200$ GeV proton-nucleus collisions

C. Aidala, Y. Akiba, M. Alfred +296

The PHENIX collaboration has measured high- $p_{T}$ dihadron correlations in $p$ $+$ $p$ , $p$ $+$ Al, and $p$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV. The correlations arise from in…

nucl-ex2018★ 88 cited

Global and local polarization of $Λ$ hyperons in Au+Au collisions at 200 GeV from STAR

Takafumi Niida

New results on global polarization of $Λ$ hyperons in Au+Au collisions at $s_{N N}$ = 200 GeV reveal non-zero signal on the order of a few tenths of a percent. Compared with…

hep-ex2018★ 24 cited

Transverse spin transfer to $Λ$ and $Λ ˉ$ hyperons in polarized proton-proton collisions at $s = 200 GeV$

STAR Collaboration, J. Adam, L. Adamczyk +345

The transverse spin transfer from polarized protons to $Λ$ and $Λ ˉ$ hyperons is expected to provide sensitivity to the transversity distribution of the nucleon and to the transv…

hep-ex2018★ 21 cited

Improved measurement of the longitudinal spin transfer to $Λ$ and $Λ ˉ$ hyperons in polarized proton-proton collisions at $s$ = 200 GeV

J. Adam, L. Adamczyk, J. R. Adams +346

The longitudinal spin transfer $D_{LL}$ to $Λ$ and $Λ ˉ$ hyperons produced in high-energy polarized proton--proton collisions is expected to be sensitive to the helicity distribu…

hep-ex2018★ 14 cited

Longitudinal Double-Spin Asymmetries for $π^{0}$ s in the Forward Direction for 510 GeV Polarized $pp$ Collisions

J. Adam, L. Adamczyk, J. R. Adams +340

The STAR Collaboration reports measurements of the longitudinal double-spin asymmetry, $A_{LL}$ , for neutral pions produced at forward directions in polarized proton-proton collisi…

hep-ex2018★ 103 cited

Low- $p_{T}$ $e^{+} e^{-}$ pair production in Au $+$ Au collisions at $s_{N N}$ = 200 GeV and U $+$ U collisions at $s_{N N}$ = 193 GeV at STAR

J. Adam, L. Adamczyk, J. R. Adams +341

We report first measurements of $e^{+} e^{-}$ pair production in the mass region 0.4 $< M_{ee} <$ 2.6 GeV/ $c^{2}$ at low transverse momentum ( $p_{T} <$ 0.15 GeV/ $c$ ) in non-central Au $+$ …

hep-ex2018★ 4 cited

Correlations of $μμ$ , $e μ$ , and $ee$ pairs in $p$ + $p$ collisions at $s = 200$ GeV and implications for $c c ˉ$ and $b b ˉ$ production mechanisms

C. Aidala, Y. Akiba, M. Alfred +290

PHENIX has measured the azimuthal correlations of muon pairs from charm and bottom semi-leptonic decays in $p$ + $p$ collisions at $s = 200$ GeV, using a novel analysis techniqu…

nucl-ex2018★ 13 cited

Beam energy dependence of rapidity-even dipolar flow in Au+Au collisions

STAR Collaboration, J. Adam, L. Adamczyk +341

New measurements of directed flow for charged hadrons, characterized by the Fourier coefficient \vone, are presented for transverse momenta $p_{T}$ , and centrality intervals…

hep-ex2018★ 22 cited

Longitudinal Double-Spin Asymmetries for Dijet Production at Intermediate Pseudorapidity in Polarized $pp$ Collisions at $s$ = 200 GeV

J. Adam, L. Adamczyk, J. R. Adams +340

We present the first measurements of the longitudinal double-spin asymmetry $A_{LL}$ for dijets with at least one jet reconstructed within the pseudorapidity range $0.8 < η < 1.8$ .…

nucl-ex2018★ 352 cited

Global polarization of $Λ$ hyperons in Au+Au collisions at $s_{_{N N}}$ = 200 GeV

J. Adam, L. Adamczyk, J. R. Adams +340

Global polarization of $Λ$ hyperons has been measured to be of the order of a few tenths of a percent in Au+Au collisions at $s_{_{N N}}$ = 200 GeV, with no significant diffe…

hep-ex2018

Production of $π^{0}$ and $η$ mesons in Cu $+$ Au collisions at $s_{_{N N}}$ =200 GeV

C. Aidala, N. N. Ajitanand, Y. Akiba +401

Production of $π^{0}$ and $η$ mesons has been measured at midrapidity in Cu $+$ Au collisions at $s_{_{N N}}$ =200 GeV. Measurements were performed in $π^{0} (η) \to γ γ$ decay…

hep-ex2018★ 4 cited

$J / ψ$ production cross section and its dependence on charged-particle multiplicity in $p + p$ collisions at $s$ = 200 GeV

STAR Collaboration, J. Adam, L. Adamczyk +341

We present a measurement of inclusive $J / ψ$ production at mid-rapidity ( $∣ y ∣ < 1$ ) in $p + p$ collisions at a center-of-mass energy of $s$ = 200 GeV with the STAR experiment at…

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-ex2018★ 8 cited

Nonperturbative transverse-momentum-dependent effects in dihadron and direct photon-hadron angular correlations in $p + p$ collisions at $s = 200$ GeV

C. Aidala, Y. Akiba, M. Alfred +291

Dihadron and isolated direct photon-hadron angular correlations are measured in $p$ $+$ $p$ collisions at $s = 200$ GeV. The correlations are sensitive to nonperturbative initia…

hep-ex2018★ 47 cited

Measurements of $μμ$ pairs from open heavy flavor and Drell-Yan in $p + p$ collisions at $s = 200$ GeV

C. Aidala, Y. Akiba, M. Alfred +290

PHENIX reports differential cross sections of $μμ$ pairs from semileptonic heavy-flavor decays and the Drell-Yan production mechanism measured in $p$ $+$ $p$ collisions at $\sqrt{s}=…

hep-ex2018★ 21 cited

Single-spin asymmetry of $J / ψ$ production in $p$ $+$ $p$ , $p$ $+$ Al, and $p$ $+$ Au collisions with transversely polarized proton beams at $s_{_{N N}} = 200$ GeV

C. Aidala, Y. Akiba, M. Alfred +289

We report the transverse single-spin asymmetries of $J / ψ$ production at forward and backward rapidity, $1.2 < ∣ y ∣ < 2.2$ , as a function of $J / ψ$ transverse momentum ( $p_{T}$ ) and Feynman…

nucl-ex2018★ 15 cited

Multi-particle azimuthal correlations for extracting event-by-event elliptic and triangular flow in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +319

We present measurements of elliptic and triangular azimuthal anisotropy of charged particles detected at forward rapidity $1 < ∣ η ∣ < 3$ in Au $+$ Au collisions at $s_{_{N N}} = 200$ …

hep-ex2018★ 21 cited

Cross section and longitudinal single-spin asymmetry $A_{L}$ for forward $W^{\pm} \to μ^{\pm} ν$ production in polarized $p$ $+$ $p$ collisions at $s = 510$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +426

We have measured the cross section and single spin asymmetries from forward $W^{\pm} \to μ^{\pm} ν$ production in longitudinally polarized $p$ $+$ $p$ collisions at $\sqrt{s}=51…

nucl-ex2018★ 5 cited

Correlation Measurements Between Flow Harmonics in Au+Au Collisions at RHIC

STAR Collaboration, J. Adam, L. Adamczyk +341

Flow harmonics ( $v_{n}$ ) in the Fourier expansion of the azimuthal distribution of particles are widely used to quantify the anisotropy in particle emission in high-energy heavy-ion…

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…

Centrality and transverse momentum dependence of D0-meson production at mid-rapidity in Au+Au collisions at sNN​​=200GeV

Measurement of the longitudinal spin asymmetries for weak boson production in proton-proton collisions at s​ = 510 GeV

Measurements of Dielectron Production in Au+Au Collisions at sNN​​= 27, 39, and 62.4 GeV from the STAR Experiment

Erratum: Observation of D0 meson nuclear modifications in Au+Au collisions at sNN​​​ = 200 GeV

Nonperturbative transverse momentum broadening in dihadron angular correlations in sNN​​=200 GeV proton-nucleus collisions

Global and local polarization of Λ hyperons in Au+Au collisions at 200 GeV from STAR

Transverse spin transfer to Λ and Λˉ hyperons in polarized proton-proton collisions at s​=200GeV

Improved measurement of the longitudinal spin transfer to Λ and Λˉ hyperons in polarized proton-proton collisions at s​ = 200 GeV

Longitudinal Double-Spin Asymmetries for π0s in the Forward Direction for 510 GeV Polarized pp Collisions

Low-pT​ e+e− pair production in Au+Au collisions at sNN​​ = 200 GeV and U+U collisions at sNN​​ = 193 GeV at STAR

Correlations of μμ, eμ, and ee pairs in p+p collisions at s​=200 GeV and implications for ccˉ and bbˉ production mechanisms

Beam energy dependence of rapidity-even dipolar flow in Au+Au collisions

Longitudinal Double-Spin Asymmetries for Dijet Production at Intermediate Pseudorapidity in Polarized pp Collisions at s​ = 200 GeV

Global polarization of Λ hyperons in Au+Au collisions at sNN​​​ = 200 GeV

Production of π0 and η mesons in Cu+Au collisions at sNN​​​=200 GeV

J/ψ production cross section and its dependence on charged-particle multiplicity in p+p collisions at s​ = 200 GeV

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

Nonperturbative transverse-momentum-dependent effects in dihadron and direct photon-hadron angular correlations in p+p collisions at s​=200 GeV

Measurements of μμ pairs from open heavy flavor and Drell-Yan in p+p collisions at s​=200 GeV

Single-spin asymmetry of J/ψ production in p+p, p+Al, and p+Au collisions with transversely polarized proton beams at sNN​​​=200 GeV

Multi-particle azimuthal correlations for extracting event-by-event elliptic and triangular flow in Au+Au collisions at sNN​​​=200 GeV

Cross section and longitudinal single-spin asymmetry AL​ for forward W±→μ±ν production in polarized p+p collisions at s​=510 GeV

Correlation Measurements Between Flow Harmonics in Au+Au Collisions at RHIC

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

Centrality and transverse momentum dependence of $D^{0}$ -meson production at mid-rapidity in Au+Au collisions at $s_{NN} = 200 GeV$

Measurement of the longitudinal spin asymmetries for weak boson production in proton-proton collisions at $s$ = 510 GeV

Measurements of Dielectron Production in Au $+$ Au Collisions at $s_{N N}$ = 27, 39, and 62.4 GeV from the STAR Experiment

Erratum: Observation of $D^{0}$ meson nuclear modifications in Au+Au collisions at $s_{_{NN}}$ = 200 GeV

Nonperturbative transverse momentum broadening in dihadron angular correlations in $s_{N N} = 200$ GeV proton-nucleus collisions

Global and local polarization of $Λ$ hyperons in Au+Au collisions at 200 GeV from STAR

Transverse spin transfer to $Λ$ and $Λ ˉ$ hyperons in polarized proton-proton collisions at $s = 200 GeV$

Improved measurement of the longitudinal spin transfer to $Λ$ and $Λ ˉ$ hyperons in polarized proton-proton collisions at $s$ = 200 GeV

Longitudinal Double-Spin Asymmetries for $π^{0}$ s in the Forward Direction for 510 GeV Polarized $pp$ Collisions

Low- $p_{T}$ $e^{+} e^{-}$ pair production in Au $+$ Au collisions at $s_{N N}$ = 200 GeV and U $+$ U collisions at $s_{N N}$ = 193 GeV at STAR

Correlations of $μμ$ , $e μ$ , and $ee$ pairs in $p$ + $p$ collisions at $s = 200$ GeV and implications for $c c ˉ$ and $b b ˉ$ production mechanisms

Longitudinal Double-Spin Asymmetries for Dijet Production at Intermediate Pseudorapidity in Polarized $pp$ Collisions at $s$ = 200 GeV

Global polarization of $Λ$ hyperons in Au+Au collisions at $s_{_{N N}}$ = 200 GeV

Production of $π^{0}$ and $η$ mesons in Cu $+$ Au collisions at $s_{_{N N}}$ =200 GeV

$J / ψ$ production cross section and its dependence on charged-particle multiplicity in $p + p$ collisions at $s$ = 200 GeV

Nonperturbative transverse-momentum-dependent effects in dihadron and direct photon-hadron angular correlations in $p + p$ collisions at $s = 200$ GeV

Measurements of $μμ$ pairs from open heavy flavor and Drell-Yan in $p + p$ collisions at $s = 200$ GeV

Single-spin asymmetry of $J / ψ$ production in $p$ $+$ $p$ , $p$ $+$ Al, and $p$ $+$ Au collisions with transversely polarized proton beams at $s_{_{N N}} = 200$ GeV

Multi-particle azimuthal correlations for extracting event-by-event elliptic and triangular flow in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

Cross section and longitudinal single-spin asymmetry $A_{L}$ for forward $W^{\pm} \to μ^{\pm} ν$ production in polarized $p$ $+$ $p$ collisions at $s = 510$ GeV

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