D. Gunarathne

activity

20132019

Λ

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

920 citations · 4.1k across the 56 of their papers we have counts for

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19 papers · 1 filter

hep-ex2019★ 1 cited

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

Ting Lin

One of the primary goals of the RHIC spin program is to determine the spin-dependent gluon distribution, $Δ g (x)$ , of the proton. The measurements of the 2009 longitudinal double-he…

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…

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★ 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 $0.8 < η < 1.8$ .…

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…

hep-ex2017★ 97 cited

Beam-Energy Dependence of Directed Flow of $Λ$ , $Λ ˉ$ , $K^{\pm}$ , $K_{s}^{0}$ and $ϕ$ in Au+Au Collisions

STAR Collaboration, L. Adamczyk, J. R. Adams +342

Rapidity-odd directed flow measurements at midrapidity are presented for $Λ$ , $Λ ˉ$ , $K^{\pm}$ , $K_{s}^{0}$ and $ϕ$ at $s_{N N} =$ 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4 and 200 GeV…

hep-ex2017★ 47 cited

Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at $s = 500$ GeV

STAR Collaboration, L. Adamczyk, J. R. Adams +342

We report the first measurements of transverse single-spin asymmetries for inclusive jet and jet + $π^{\pm}$ production at midrapidity from transversely polarized proton-proton col…

hep-ex2016★ 36 cited

Measurement of the cross section and longitudinal double-spin asymmetry for di-jet production in polarized $pp$ collisions at $s$ = 200 GeV

STAR Collaboration, L. Adamczyk, J. K. Adkins +341

We report the first measurement of the longitudinal double-spin asymmetry $A_{LL}$ for mid-rapidity di-jet production in polarized $pp$ collisions at a center-of-mass energy of $\s…

hep-ex2016★ 55 cited

Energy dependence of $J / ψ$ production in Au+Au collisions at $s_{N N} =$ 39, 62.4 and 200 GeV

L. Adamczyk, J. K. Adkins, G. Agakishiev +329

The inclusive $J / ψ$ transverse momentum ( $p_{T}$ ) spectra and nuclear modification factors are reported at midrapidity ( $∣ y ∣ < 1.0$ ) in Au+Au collisions at $s_{N N} =$ 39, 62.4…

hep-ex2015

Measurement of longitudinal single-spin asymmetries for $W^{\pm}$ boson production in polarized $p + p$ collisions at $s = 510$ GeV at STAR

Devika Gunarathne

$W^{\pm}$ boson production in longitudinally polarized $p + p$ collisions provides unique and clean access to the individual helicity polarizations of $u$ / $d$ quarks and anti-quarks.…

hep-ex2015★ 99 cited

Measurements of Dielectron Production in Au $+$ Au Collisions at $s_{NN}$ = 200 GeV from the STAR Experiment

STAR Collaboration, L. Adamczyk, J. K. Adkins +325

We report on measurements of dielectron ( $e^{+} e^{-}$ ) production in Au $+$ Au collisions at a center-of-mass energy of 200 GeV per nucleon-nucleon pair using the STAR detector at RHIC.…

hep-ex2015★ 40 cited

Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in $p^{↑} + p$ at $s = 200$ GeV

STAR Collaboration, L. Adamczyk, J. K. Adkins +325

We report the observation of transverse polarization-dependent azimuthal correlations in charged pion pair production with the STAR experiment in $p^{↑} + p$ collisions at RHIC.…

hep-ex2015

The $ϕ (1020) \to e^{+} e^{-}$ meson decay measured with the STAR experiment in Au+Au collisions at $s_{_{N N}}$ = 200 GeV

STAR Collaboration, L. Adamczyk, J. K. Adkins +328

We report the measurement of the leptonic ( $e^{+} e^{-}$ ) decay channel of the $ϕ$ (1020) meson in Au+Au collisions at $s_{_{N N}}$ = 200 GeV by the STAR experiment. The transv…

hep-ex2015★ 54 cited

Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au+Au collisions at $s_{N N} = 19.6$ and 200 GeV

STAR Collaboration, L. Adamczyk, J. K. Adkins +331

The acceptance-corrected dielectron excess mass spectra, where the known hadronic sources have been subtracted from the inclusive dielectron mass spectra, are reported for the firs…

hep-ex2014★ 124 cited

Precision Measurement of the Longitudinal Double-spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at $s = 200$ GeV

STAR Collaboration, L. Adamczyk, J. K. Adkins +355

We report a new high-precision measurement of the mid-rapidity inclusive jet longitudinal double-spin asymmetry, $A_{LL}$ , in polarized $pp$ collisions at center-of-mass energy $\s…

hep-ex2014★ 12 cited

Elliptic flow of electrons from heavy-flavor hadron decays in Au+Au collisions at $s_{NN} =$ 200, 62.4, and 39 GeV

STAR Collaboration, L. Adamczyk, J. K. Adkins +342

We present measurements of elliptic flow ( $v_{2}$ ) of electrons from the decays of heavy-flavor hadrons ( $e_{H F}$ ) by the STAR experiment. For Au+Au collisions at $\sqrt{s_{\rm NN}}…

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

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

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

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

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

Beam-Energy Dependence of Directed Flow of Λ, Λˉ, K±, Ks0​ and ϕ in Au+Au Collisions

Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at s​=500 GeV

Measurement of the cross section and longitudinal double-spin asymmetry for di-jet production in polarized pp collisions at s​ = 200 GeV

Energy dependence of J/ψ production in Au+Au collisions at sNN​​= 39, 62.4 and 200 GeV

Measurement of longitudinal single-spin asymmetries for W± boson production in polarized p+p collisions at s​=510 GeV at STAR

Measurements of Dielectron Production in Au+Au Collisions at sNN​​ = 200 GeV from the STAR Experiment

Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in p↑+p at s​=200 GeV

The ϕ(1020)→e+e− meson decay measured with the STAR experiment in Au+Au collisions at sNN​​​ = 200 GeV

Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au+Au collisions at sNN​​=19.6 and 200 GeV

Precision Measurement of the Longitudinal Double-spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at s​=200 GeV

Elliptic flow of electrons from heavy-flavor hadron decays in Au+Au collisions at sNN​​= 200, 62.4, and 39 GeV

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

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

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

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

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

Beam-Energy Dependence of Directed Flow of $Λ$ , $Λ ˉ$ , $K^{\pm}$ , $K_{s}^{0}$ and $ϕ$ in Au+Au Collisions

Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at $s = 500$ GeV

Measurement of the cross section and longitudinal double-spin asymmetry for di-jet production in polarized $pp$ collisions at $s$ = 200 GeV

Energy dependence of $J / ψ$ production in Au+Au collisions at $s_{N N} =$ 39, 62.4 and 200 GeV

Measurement of longitudinal single-spin asymmetries for $W^{\pm}$ boson production in polarized $p + p$ collisions at $s = 510$ GeV at STAR

Measurements of Dielectron Production in Au $+$ Au Collisions at $s_{NN}$ = 200 GeV from the STAR Experiment

Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in $p^{↑} + p$ at $s = 200$ GeV

The $ϕ (1020) \to e^{+} e^{-}$ meson decay measured with the STAR experiment in Au+Au collisions at $s_{_{N N}}$ = 200 GeV

Energy dependence of acceptance-corrected dielectron excess mass spectrum at mid-rapidity in Au+Au collisions at $s_{N N} = 19.6$ and 200 GeV

Precision Measurement of the Longitudinal Double-spin Asymmetry for Inclusive Jet Production in Polarized Proton Collisions at $s = 200$ GeV

Elliptic flow of electrons from heavy-flavor hadron decays in Au+Au collisions at $s_{NN} =$ 200, 62.4, and 39 GeV