F. Wei

$I ¨ $ meson production in $d$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV

PHENIX Collaboration, A. Adare, C. Aidala +482

The PHENIX experiment has measured $I ¨ $ meson production in $d$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV using the dimuon and dielectron decay channels. The $I ¨ $ meson is meas…

Cold-nuclear-matter effcts on heavy-quark production in d+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +379

The PHENIX experiment has measured electrons and positrons at midrapidity from the decays of hadrons containing charm and bottom quarks produced in d+Au and p+p collisions at sqrt(…

Elliptic and hexadecapole flow of charged hadrons in Au+Au collisions at sqrt(s_NN) = 200 GeV

A. Adare, S. Afanasiev, C. Aidala +380

Differential measurements of the elliptic (v_2) and hexadecapole (v_4) Fourier flow coefficients are reported for charged hadrons as a function of transverse momentum (p_T) and col…

Cross section and longitudinal single-spin asymmetry $A_{L}$ for forward $W^{\pm} \to I^¼^{\pm} I^½$ 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 $W^{\pm} \to I^¼^{\pm} I^½$ production in longitudinally polarized $p$ $+$ $p$ collisions at $\sqrt{s}=…

Beam-energy and system-size dependence of the space-time extent of the pion emission source produced in heavy ion collisions

A. Adare, S. Afanasiev, C. Aidala +619

Two-pion interferometry measurements are used to extract the Gaussian radii $R_{out}$ , $R_{side}$ , and $R_{long}$ , of the pion emission sources produced in Cu $+$ Cu and…

Measurement of elliptic flow of J $/ I ¨ $ 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 $/ I ¨ $ at forward rapidity ( $1.2 < ∣ I^\cdot ∣ < 2.2$ ) in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV at the Relativistic H…

Cold Nuclear Matter Effects on J/psi Yields as a Function of Rapidity and Nuclear Geometry in Deuteron-Gold Collisions at sqrt(s_NN) = 200 GeV

A. Adare, S. Afanasiev, C. Aidala +445

We present measurements of J/psi yields in d+Au collisions at sqrt(s_NN) = 200 GeV recorded by the PHENIX experiment and compare with yields in p+p collisions at the same energy pe…

Medium modification of jet fragmentation in Au+Au collisions at sqrt(s_NN)=200 GeV measured in direct photon-hadron correlations

A. Adare, S. Afanasiev, C. Aidala +559

The jet fragmentation function is measured with direct photon-hadron correlations in p+p and Au+Au collisions at sqrt(s_NN)=200 GeV. The p_T of the photon is an excellent approxima…

nucl-ex2023

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 ( $∣ I^\cdot ∣ < 0.35$ ) charged hadrons in 0\%--5\% central $…

Azimuthal-angle dependence of charged-pion-interferometry measurements with respect to 2 $^{nd}$ - and $3^{rd}$ -order event planes in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

A. Adare, S. Afanasiev, C. Aidala +383

Charged-pion-interferometry measurements were made with respect to the 2 $^{nd}$ - and 3 $^{rd}$ -order event plane for Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV. A stro…

Polarization and cross section of midrapidity J/ $I ¨ $ production in proton-proton collisions at $s = 510$ GeV

U. Acharya, A. Adare, C. Aidala +347

The PHENIX experiment has measured the spin alignment for inclusive $J / I ¨ \to e^{+} e^{-}$ decays in $p$ + $p$ collisions at $s = 510$ GeV at midrapidity. The angular dist…

Comparison of the space-time extent of the emission source in $d$ $+$ Au and Au $+$ Au collisions at $s_{N N} = 200$ GeV

A. Adare, S. Afanasiev, C. Aidala +519

Two-pion interferometry measurements in $d$ $+$ Au and Au $+$ Au collisions at $s_{N N} = 200$ GeV are used to extract and compare the Gaussian source radii R $_{out}$ , R$_{\rm…

Cross section and transverse single-spin asymmetry of muons from open heavy-flavor decays in polarized $p$ + $p$ collisions at $s = 200$ GeV

C. Aidala, N. N. Ajitanand, Y. Akiba +433

The cross section and transverse single-spin asymmetries of $I^¼^{-}$ and $I^¼^{+}$ from open heavy-flavor decays in polarized $p$ + $p$ collisions at $s = 200$ GeV were measured…

J/psi suppression at forward rapidity in Au+Au collisions at sqrt(s_NN)=39 and 62.4 GeV

A. Adare, C. Aidala, N. N. Ajitanand +361

We present measurements of the J/psi invariant yields in sqrt(s_NN)=39 and 62.4 GeV Au+Au collisions at forward rapidity (1.2<|y|<2.2). Invariant yields are presented as a function…

Nuclear modification factors of phi mesons in d+Au, Cu+Cu and Au+Au collisions at sqrt(S_NN)=200 GeV

PHENIX Collaboration, A. Adare, S. Afanasiev +529

The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) has performed systematic measurements of phi meson production in the K+K- decay channel at midrapidity in p+p, d…

hep-ex2019

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…

Single electron yields from semileptonic charm and bottom hadron decays in Au $+$ Au collisions at $s_{N N} = 200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +429

The PHENIX Collaboration at the Relativistic Heavy Ion Collider has measured open heavy-flavor production in minimum bias Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV via the y…

hep-ex2012

Direct-Photon Production in p+p Collisions at sqrt(s)=200 GeV at Midrapidity

A. Adare, S. Afanasiev, C. Aidala +379

The differential cross section for the production of direct photons in p+p collisions at sqrt(s)=200 GeV at midrapidity was measured in the PHENIX detector at the Relativistic Heav…

nucl-ex2022

Study of $I ¨ $ -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…

Suppression of back-to-back hadron pairs at forward rapidity in d+Au Collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +377

Back-to-back hadron pair yields in d+Au and p+p collisions at sqrt(s_NN)=200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated h…

nucl-ex2025

Measurements at forward rapidity of elliptic flow of charged hadrons and open-heavy-flavor muons in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

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

We present the first forward-rapidity measurements of elliptic anisotropy of open-heavy-flavor muons at the BNL Relativistic Heavy Ion Collider. The measurements are based on data…

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…

Observation of direct-photon collective flow in sqrt(s_NN)=200 GeV Au+Au collisions

A. Adare, S. Afanasiev, C. Aidala +380

The second Fourier component v_2 of the azimuthal anisotropy with respect to the reaction plane was measured for direct photons at midrapidity and transverse momentum (p_T) of 1--1…

Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $s_{N N} = 7.7$ to 200 GeV

A. Adare, S. Afanasiev, C. Aidala +702

Measurements of midrapidity charged particle multiplicity distributions, $d N_{ch} / d I^\cdot$ , and midrapidity transverse-energy distributions, $d E_{T} / d I^\cdot$ , are presented for a variety…

Measurement of $J / I ¨ $ 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…

Centrality dependence of LÃ©vy-stable two-pion Bose-Einstein correlations in $s_{_{N N}} = 200$ GeV Au $+$ Au collisions

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +394

The PHENIX experiment measured the centrality dependence of two-pion Bose-Einstein correlation functions in $s_{_{N N}} = 200$ ~GeV Au $+$ Au collisions at the Relativistic Heavy…

Trends in Yield and Azimuthal Shape Modification in Dihadron Correlations in Relativistic Heavy Ion Collisions

A. Adare, S. Afanasiev, C. Aidala +424

Fast parton probes produced by hard scattering and embedded within collisions of large nuclei have shown that partons suffer large energy loss and that the produced medium may resp…

Scaling properties of fractional momentum loss of high-pT hadrons in nucleus-nucleus collisions at $s_{_{N N}}$ from 62.4 GeV to 2.76 TeV

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

Measurements of the fractional momentum loss ( $S_{loss} \equiv I^´ p_{T} / p_{T}$ ) of high-transverse-momentum-identified hadrons in heavy ion collisions are presented. Using $I ¨ ^{0}$ in A…

Measurement of jet-medium interactions via direct photon-hadron correlations in Au $+$ Au and $d$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV

U. Acharya, A. Adare, S. Afanasiev +574

We present direct photon-hadron correlations in 200 GeV/A Au $+$ Au, $d$ $+$ Au and $p$ $+$ $p$ collisions, for direct photon $p_{T}$ from 5--12 GeV/ $c$ , collected by the PHENIX Collaborat…

Suppression of away-side jet fragments with respect to the reaction plane in Au+Au collisions at sqrt(s_NN) = 200 GeV

A. Adare, S. Afanasiev, C. Aidala +424

Pair correlations between large transverse momentum neutral pion triggers (p_T=4--7 GeV/c) and charged hadron partners (p_T=3--7 GeV/c) in central (0--20%) and midcentral (20--60%)…

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 ( $I ¨ + I ¨ $ and $I ¨ $ ) production through the dimuon decay channel at forward rapidity $…

hep-ex2015

Inclusive cross section and double-helicity asymmetry for $I ¨ ^{0}$ production at midrapidity in $p$ $+$ $p$ collisions at $s = 510$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +410

PHENIX measurements are presented for the cross section and double-helicity asymmetry ( $A_{LL}$ ) in inclusive $I ¨ ^{0}$ production at midrapidity from $p$ $+$ $p$ collisions at $\sqrt{s…

sPHENIX: An Upgrade Concept from the PHENIX Collaboration

A. Adare, C. Aidala, N. N. Ajitanand +423

The PHENIX collaboration presents a concept for a major upgrade to the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). This upgrade, referred to as sPHENIX, brings e…

Angular decay coefficients of $J / I ¨ $ mesons at forward rapidity from $p + p$ collisions at $s = 510$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +387

We report the first measurement of the full angular distribution for inclusive $J / I ¨ \to I^¼^{+} I^¼^{-}$ decays in $p$ $+$ $p$ collisions at $s = 510$ GeV. The measurements…

Systematic study of charged-pion and kaon femtoscopy in Au $+$ Au collisions at $s_{_{N N}}$ =200 GeV

A. Adare, S. Afanasiev, C. Aidala +496

We present a systematic study of charged pion and kaon interferometry in Au $+$ Au collisions at $s_{_{N N}}$ =200 GeV. The kaon mean source radii are found to be larger than pi…

Measurements of directed, elliptic, and triangular flow in Cu $+$ Au collisions at $s_{_{N N}} = 200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +401

Measurements of anisotropic flow Fourier coefficients ( $v_{n}$ ) for inclusive charged particles and identified hadrons $I ¨ ^{\pm}$ , $K^{\pm}$ , $p$ , and $p ˉ$ produced at midrapidi…

Centrality dependence of low-momentum direct-photon production in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

A. Adare, S. Afanasiev, C. Aidala +477

The PHENIX experiment at RHIC has measured the centrality dependence of the direct photon yield from Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV down to $p_{T} = 0.4$ GeV/ $c$ . Pho…

hep-ex2023

Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at $s = 510$ GeV in $p + p$ Collisions

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +358

We present measurements of the cross section and double-helicity asymmetry $A_{LL}$ of direct-photon production in $p + p$ collisions at $s = 510$ GeV. The measureme…

nucl-ex2018

Pseudorapidity dependence of particle production and elliptic flow in asymmetric nuclear collisions of $p$ $+$ Al, $p$ $+$ Au, $d$ $+$ Au, and $^{3}$ He $+$ Au at $s_{_{N N}} = 200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +364

Asymmetric nuclear collisions of $p$ $+$ Al, $p$ $+$ Au, $d$ $+$ Au, and $^{3}$ He $+$ Au at $s_{_{N N}} = 200$ GeV provide an excellent laboratory for understanding particle production…

Measurements of $B \to J / I ¨ $ at forward rapidity in $p$ $+$ $p$ collisions at $s = 510$ GeV

C. Aidala, N. N. Ajitanand, Y. Akiba +427

We report the first measurement of the fraction of $J / I ¨ $ mesons coming from $B$ -meson decay ( $F_{B \to J / I ¨ }$ ) in $p$ + $p$ collisions at $s =$ 510 GeV. The measuremen…

Upsilon (1S+2S+3S) production in d+Au and p+p collisions at sqrt(s_NN)=200 GeV and cold-nuclear matter effects

A. Adare, S. Afanasiev, C. Aidala +491

The three Upsilon states, Upsilon(1S+2S+3S), are measured in d+Au and p+p collisions at sqrt(s_NN)=200 GeV and rapidities 1.2<|y|<2.2 by the PHENIX experiment at the Relativistic H…

Centrality categorization for R_{p(d)+A} in high-energy collisions

A. Adare, C. Aidala, N. N. Ajitanand +374

High-energy proton- and deuteron-nucleus collisions provide an excellent tool for studying a wide array of physics effects, including modifications of parton distribution functions…

hep-ex2025

Transverse single-spin asymmetry of forward $I^\cdot$ mesons in $p^{↑} + p$ collisions at $s = 200$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +380

Utilizing the 2012 transversely polarized proton data from the Relativistic Heavy Ion Collider at Brookhaven National Laboratory, the forward $I^\cdot$ -meson transverse single-spin asym…

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 ( $∣ I^\cdot ∣ < 0.35$ ) in long…

Production of omega mesons in p+p, d+Au, Cu+Cu, and Au+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +538

The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) has measured omega meson production via leptonic and hadronic decay channels in p+p, d+Au, Cu+Cu, and Au+Au coll…

nucl-ex2019

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 $1 < ∣ I^\cdot ∣ < 3$ in Au $+$ Au collisions at $s_{_{N N}} = 200$ …

Measurement of $I ¨ $ -meson production at forward rapidity in $p$ $+$ $p$ collisions at $s$ =510 GeV and energy dependence of $I ¨ _{I ¨} $ from $s$ =200 GeV to 7 TeV

A. Adare, C. Aidala, N. N. Ajitanand +355

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the differential cross section of $I ¨ $ (1020)-meson production at forward rapidity in $p$ $+$ $p$ collisions…

Dielectron production in Au $+$ Au collisions at $s_{N N}$ =200 GeV

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

We present measurements of $e^{+} e^{-}$ production at midrapidity in Au $+$ Au collisions at $s_{_{N N}}$ = 200 GeV. The invariant yield is studied within the PHENIX detector accep…

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 +386

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 $+$ …

Measurement of emission angle anisotropy via long-range angular correlations with high $p_{T}$ hadrons in $d$ $+$ Au and $p$ $+$ $p$ collisions at $s_{_{N N}} = 200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +470

We present measurements of two-particle angular correlations between high-transverse-momentum ( $2 < p_{T} < 11$ GeV/ $c$ ) $I ¨ ^{0}$ observed at midrapidity ( $∣ I^\cdot ∣ < 0.35$ ) and particles produc…

nucl-ex2023

Low- $p_{T}$ direct-photon production in Au $+$ Au collisions at $s_{_{N N}} = 39$ and 62.4 GeV

N. J. Abdulameer, U. Acharya, A. Adare +431

The measurement of direct photons from Au $+$ Au collisions at $s_{_{N N}} = 39$ and 62.4 GeV in the transverse-momentum range $0.4 < p_{T} < 3$ Gev/ $c$ is presented by the PHENIX coll…

hep-ex2022

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…

Cold-nuclear-matter effects on heavy-quark production at forward and backward rapidity in d+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, C. Aidala, N. N. Ajitanand +421

The PHENIX experiment has measured open heavy-flavor production via semileptonic decay muons over the transverse momentum range 1 < pT < 6 GeV/c at forward and backward rapidity (1…

Direct photon production in d+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. S. Adler, S. Afanasiev +543

Direct photons have been measured in sqrt(s_NN)=200 GeV d+Au collisions at midrapidity. A wide p_T range is covered by measurements of nearly-real virtual photons (1<p_T<6 GeV/c) a…

hep-ex2025

Cross sections of $I^\cdot$ mesons in $p$ $+$ $p$ collisions at forward rapidity at $s = 500$ GeV and central rapidity at $s = 510$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +497

We present the first measurements of the forward and midrapidity $I^\cdot$ -meson cross sections from $p$ $+$ $p$ collisions at $s = 500$ and $510$ ~GeV, respectively. We also report t…

nucl-ex2020

Evolution of pi^0 suppression in Au+Au collisions from sqrt(s_NN) = 39 to 200 GeV

A. Adare, S. Afanasiev, C. Aidala +367

Neutral-pion, pi^0, spectra were measured at midrapidity (|y|<0.35) in Au+Au collisions at sqrt(s_NN) = 39 and 62.4 GeV and compared to earlier measurements at 200 GeV in the 1<p_T…

nucl-ex2017

Measurements of $e^{+} e^{-}$ pairs from open heavy flavor in $p$ + $p$ and $d$ + $A$ collisions at $s_{N N} = 200$ GeV

A. Adare, S. Afanasiev, C. Aidala +505

We report a measurement of $e^{+} e^{-}$ pairs from semileptonic heavy-flavor decays in $p$ + $p$ collisions at $s_{N N} = 200$ ~GeV. The $e^{+} e^{-}$ pair yield from $b b ˉ$ and $c\bar…

Production of $b b ˉ$ at forward rapidity in $p$ + $p$ collisions at $s = 510$ GeV

U. Acharya, A. Adare, C. Aidala +347

The cross section of bottom quark-antiquark ( $b b ˉ$ ) production in $p$ + $p$ collisions at $s = 510$ GeV is measured with the PHENIX detector at the Relativistic Heavy Ion C…

nucl-ex2017

Measurement of the relative yields of $I ¨ (2 S)$ to $I ¨ (1 S)$ mesons produced at forward and backward rapidity in $p$ $+$ $p$ , $p$ $+$ Al, $p$ $+$ Au, and $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +358

The PHENIX Collaboration has measured the ratio of the yields of $I ¨ (2 S)$ to $I ¨ (1 S)$ mesons produced in $p$ $+$ $p$ , $p$ $+$ Al, $p$ $+$ Au, and $^{3}$ He $+$ Au collisions at $\sqrt{s_{_{…

$I ¨ $ meson production in the forward/backward rapidity region in Cu $+$ Au collisions at $s_{N N} = 200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +509

The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) has measured $I ¨ $ meson production and its nuclear modification in asymmetric Cu $+$ Au heavy-ion collisions at $\…

hep-ex2011

Ground and excited charmonium state production in p+p collisions at sqrt(s)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +444

We report on charmonium measurements [J/psi(1S), psi'(2S), and chi_c(1P)] in p+p collisions at sqrt(s)=200 GeV. We find that the fraction of J/psi coming from the feed-down decay o…

nucl-ex2023

Measurement of $I ¨ $ -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 $I ¨ $ -meson production in asymmetric Cu $+$ Au collisions at $s_{_{N N}}$ =200 GeV…

cond-mat.supr-con2010

Evidence for multiple gaps in specific heat of LiFeAs crystals

F. Wei, F. Chen, K. Sasmal +5

The zero-field specific heat of LiFeAs was measured on several single crystals selected from a bulk sample. A sharp Delta Cp/Tc anomaly of approximately 20 mJ/(mole x K^2) was obse…

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…

Measurement of long-range angular correlation and quadrupole anisotropy of pions and (anti)protons in central $d$ $+$ Au collisions at $s_{_{N N}}$ =200 GeV

A. Adare, C. Aidala, N. N. Ajitanand +421

We present azimuthal angular correlations between charged hadrons and energy deposited in calorimeter towers in central $d$ $+$ Au and minimum bias $p$ $+$ $p$ collisions at $\sqrt{s_{…

nucl-ex2018

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 ( $∣ I^\cdot ∣ < 0.35$ ), in 0%--5% central $p$ $+$ Au…

Heavy-quark production and elliptic flow in Au $+$ Au collisions at $s_{_{N N}} = 62.4$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +366

We present measurements of electrons and positrons from the semileptonic decays of heavy-flavor hadrons at midrapidity ( $∣ y ∣ <$ 0.35) in Au $+$ Au collisions at $\sqrt{s_{_{NN}}}=62.4…

J/psi suppression at forward rapidity in Au+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +381

Heavy quarkonia are observed to be suppressed in relativistic heavy ion collisions relative to their production in p+p collisions scaled by the number of binary collisions. In orde…

An Upgrade Proposal from the PHENIX Collaboration

A. Adare, S. Afanasiev, C. Aidala +473

In this document the PHENIX collaboration proposes a major upgrade to the PHENIX detector at the Relativistic Heavy Ion Collider. This upgrade, sPHENIX, enables an extremely rich j…

nucl-ex2022

Systematic study of nuclear effects in $p$ $+$ Al, $p$ $+$ Au, $d$ $+$ Au, and $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV using $I ¨ ^{0}$ production

U. A. Acharya, A. Adare, C. Aidala +550

The PHENIX collaboration presents a systematic study of $I ¨ ^{0}$ production from $p$ $+$ $p$ , $p$ $+$ Al, $p$ $+$ Au, $d$ $+$ Au, and $^{3}$ He $+$ Au collisions at $s_{_{N N}} = 200$ GeV.…

Production of $I ¨ ^{0}$ and $I^\cdot$ mesons in U $+$ U collisions at $s_{_{N N}} = 192$ GeV

U. Acharya, C. Aidala, N. N. Ajitanand +399

The PHENIX experiment at the Relativistic Heavy Ion Collider measured $I ¨ ^{0}$ and $I^\cdot$ mesons at midrapidity in U $+$ U collisions at $s_{_{N N}} = 192$ GeV in a wide transverse m…

Low-momentum direct photon measurement in Cu $+$ Cu collisions at $s_{_{N N}} = 200$ GeV

A. Adare, S. Afanasiev, C. Aidala +447

We have measured direct photons for $p_{T} < 5$ GeV/ $c$ in minimum bias and 0\%--40\% most central events at midrapidity for Cu $+$ Cu collisions at $s_{_{N N}} = 200$ GeV. The $e^{+…

nucl-ex2020

Measurements of Higher-Order Flow Harmonics in Au+Au Collisions at sqrt(s_NN) = 200 GeV

A. Adare, S. Afanasiev, C. Aidala +381

Flow coefficients v_n for n = 2, 3, 4, characterizing the anisotropic collective flow in Au+Au collisions at sqrt(s_NN) = 200 GeV, are measured relative to event planes Î¨_n determ…

hep-ex2010

Measurement of Transverse Single-Spin Asymmetries for J/psi Production in Polarized p+p Collisions at sqrt(s) = 200 GeV

A. Adare, S. Afanasiev, C. Aidala +444

We report the first measurement of transverse single-spin asymmetries in $J / I ¨ $ production from transversely polarized $p + p$ collisions at $s = 200$ GeV with data taken by t…

Azimuthally anisotropic emission of low-momentum direct photons in Au $+$ Au collisions at $s_{_{N N}} = 200$ GeV

A. Adare, S. Afanasiev, C. Aidala +549

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured 2nd and 3rd order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapi…

Identified charged-hadron production in $p$ $+$ Al, $^{3}$ He $+$ Au, and Cu $+$ Au collisions at $s_{_{N N}} = 200$ GeV and in U $+$ U collisions at $s_{_{N N}} = 193$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +477

The PHENIX experiment has performed a systematic study of identified charged-hadron ( $I ¨ ^{\pm}$ , $K^{\pm}$ , $p$ , $p ˉ$ ) production at midrapidity in $p$ $+$ Al, $^{3}$ He $+$ Au, Cu $+$ Au…

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…

Azimuthal correlations of electrons from heavy-flavor decay with hadrons in p+p and Au+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +425

Measurements of electrons from the decay of open-heavy-flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary scaled p+p c…

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…

Neutral pion production with respect to centrality and reaction plane in Au+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +380

The PHENIX experiment has measured the production of neutral pions in Au+Au collisions at sqrt(s_NN)=200 GeV. The new data offer a fourfold increase in recorded luminosity, providi…

hep-ex2025

Measurement of inclusive jet cross section and substructure in $p$ $+$ $p$ collisions at $s_{_{N N}} = 200$ GeV

PHENIX Collaboration, N. J. Abdulameer, U. Acharya +443

The jet cross-section and jet-substructure observables in $p$ $+$ $p$ collisions at $s = 200$ GeV were measured by the PHENIX Collaboration at the Relativistic Heavy Ion Collide…

Production of $I ¨ ^{0}$ and $I^\cdot$ mesons in Cu $+$ Au collisions at $s_{_{N N}}$ =200 GeV

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

Production of $I ¨ ^{0}$ and $I^\cdot$ mesons has been measured at midrapidity in Cu $+$ Au collisions at $s_{_{N N}}$ =200 GeV. Measurements were performed in $I ¨ ^{0} (I^\cdot) \to I^^{3} I^^{3}$ …

Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +413

The transverse momentum (p_T) spectra and ratios of identified charged hadrons (Ï^+/-, K^+/-, p, p^bar) produced in sqrt(s_NN)=200 GeV Au+Au and d+Au collisions are reported in fi…

Jet modification via $I ¨ ^{0}$ -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…

Heavy-flavor electron-muon correlations in $p$ $+$ $p$ and $d$ +Au collisions at $s_{_{N N}}$ = 200 GeV

A. Adare, S. Afanasiev, C. Aidala +446

We report $e^{\pm} - I^¼^{\mp}$ pair yield from charm decay measured between midrapidity electrons ( $∣ I^\cdot ∣ < 0.35$ and $p_{T} > 0.5$ GeV/ $c$ ) and forward rapidity muons ( $1.4 < I^\cdot < 2.1$ and $p_T>1.…

physics.ins-det2014

The PHENIX Forward Silicon Vertex Detector

C. Aidala, L. Anaya, E. Anderssen +82

A new silicon detector has been developed to provide the PHENIX experiment with precise charged particle tracking at forward and backward rapidity. The Forward Silicon Vertex Track…

Inclusive cross section and single-transverse-spin asymmetry for very forward neutron production in polarized p+p collisions at sqrt(s)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +379

The energy dependence of the single-transverse-spin asymmetry, A_N, and the cross section for neutron production at very forward angles were measured in the PHENIX experiment at RH…

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.…

hep-ex2012

Cross sections and double-helicity asymmetries of midrapidity inclusive charged hadrons in p+p collisions at sqrt(s)=62.4 GeV

A. Adare, S. Afanasiev, C. Aidala +382

Unpolarized cross sections and double-helicity asymmetries of single-inclusive positive and negative charged hadrons at midrapidity from p+p collisions at sqrt(s)=62.4 GeV are pres…

Transverse-Momentum Dependence of the J/psi Nuclear Modification in d+Au Collisions at sqrt(s_NN)=200 GeV

A. Adare, S. Afanasiev, C. Aidala +379

We present measured J/psi production rates in d+Au collisions at sqrt(s_NN) = 200 GeV over a broad range of transverse momentum (p_T=0-14 GeV/c) and rapidity (-2.2<y<2.2). We const…

hep-ex2019

Beam-energy and centrality dependence of direct-photon emission from ultra-relativistic heavy-ion collisions

A. Adare, S. Afanasiev, C. Aidala +669

The PHENIX collaboration presents first measurements of low-momentum ( $0.4 < p_{T} < 3$ GeV/ $c$ ) direct-photon yields from Au $+$ Au collisions at $s_{_{N N}}$ =39 and 62.4 GeV. For b…

Concept for an Electron Ion Collider (EIC) detector built around the BaBar solenoid

PHENIX Collaboration, A. Adare, C. Aidala +304

The PHENIX collaboration presents here a concept for a detector at a future Electron Ion Collider (EIC). The EIC detector proposed here, referred to as ePHENIX, will have excellent…

hep-ex2014

Inclusive double-helicity asymmetries in neutral pion and eta meson production in $p + p$ collisions at $s = 200$ GeV

A. Adare, C. Aidala, N. N. Ajitanand +377

Results are presented from data recorded in 2009 by the PHENIX experiment at the Relativistic Heavy Ion Collider for the double-longitudinal spin asymmetry, $A_{LL}$ , for $I ¨ ^{0}$ an…

Quadrupole Anisotropy in Dihadron Azimuthal Correlations in Central $d$ $+$ Au Collisions at $s_{_{N N}}$ =200 GeV

A. Adare, C. Aidala, N. N. Ajitanand +373

The PHENIX collaboration at the Relativistic Heavy Ion Collider (RHIC) reports measurements of azimuthal dihadron correlations near midrapidity in $d$ $+$ Au collisions at $\sqrt{s_{…

hep-ex2012

Erratum: Measurement of transverse single-spin asymmetries for J/psi production in polarized p+p collisions at sqrt(s)=200 GeV [Phys. Rev. D 82, 112008 (2010)]

A. Adare, S. Afanasiev, C. Aidala +444

We previously reported [Phys. Rev. D 82, 112008 (2010)] measurements of transverse single-spin asymmetries, A_N, in J/psi production from transversely polarized p+p collisions at s…

Measurement of $K_{S}^{0}$ and $K^{* 0}$ in $p$ $+$ $p$ , $d$ $+$ Au, and Cu $+$ Cu collisions at $s_{_{N N}} = 200$ GeV

A. Adare, S. Afanasiev, C. Aidala +587

The PHENIX experiment at the Relativistic Heavy Ion Collider has performed a systematic study of $K_{S}^{0}$ and $K^{* 0}$ meson production at midrapidity in $p$ $+$ $p$ , $d$ $+$ Au, and Cu…

hep-ex2013

Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p+p collisions at $s =$ 200 and 62.4 GeV

A. Adare, S. Afanasiev, C. Aidala +448

Measurements of transverse-single-spin asymmetries ( $A_{N}$ ) in $p$ $+$ $p$ collisions at $s =$ 62.4 and 200 GeV with the PHENIX detector at RHIC are presented. At midrapidity,…

Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in $p$ $+$ $p$ collisions at $s$ =510 GeV

A. Adare, C. Aidala, N. N. Ajitanand +463

Dihadron and isolated direct photon-hadron angular correlations are measured in $p$ $+$ $p$ collisions at $s = 510$ GeV. Correlations of charged hadrons of $0.7 < p_{T} < 10$ GeV/ $c$ …

nucl-ex2017

B-meson production at forward and backward rapidity in $p$ + $p$ and Cu+Au collisions at $s_{_{N N}}$ =200 GeV

C. Aidala, N. N. Ajitanand, Y. Akiba +456

The fraction of $J / I ¨ $ mesons which come from B-meson decay, $F_{B \to J / I ¨ }$ , is measured for J/ $I ¨ $ rapidity \mbox{ $1.2 < ∣ y ∣ < 2.2$ } and $p_{T} > 0$ in $p$ + $p$ and Cu+A…