N. Ramasubramanian

This document summarizes the prospective physics plans of the French QCD and Heavy-Ion community, including the experimental programs at the LHC Run 5 and beyond and future collide…

nucl-ex2023

Measurement of the helicity asymmetry $E$ for the $γ p \to p π^{0}$ reaction in the resonance region

K. Chan, N. Zachariou, M. Bashkanov +9

The double-spin-polarization observable $E$ for $γ p \to p π^{0}$ has been measured with the CEBAF Large Acceptance Spectrometer (CLAS) at photon beam energies $E_{γ}$ …

nucl-ex2023★ 4 cited

Hot QCD White Paper

M. Arslandok, S. A. Bass, A. A. Baty +170

Hot QCD physics studies the nuclear strong force under extreme temperature and densities. Experimentally these conditions are achieved via high-energy collisions of heavy ions at t…

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…

nucl-ex2022

Nuclear modification of hard scattering processes in small systems at PHENIX

Niveditha Ramasubramanian, Gabor David

Collisions of small systems at RHIC exhibit a significant suppression of the nuclear modification factor $R_{x A}$ of jets and high momentum neutral pions in events with large event…

hep-ex2022

First CLAS12 measurement of DVCS beam-spin asymmetries in the extended valence region

CLAS Collaboration, G. Christiaens, M. Defurne +168

Deeply virtual Compton scattering (DVCS) allows one to probe Generalized Parton Distributions (GPDs) describing the 3D structure of the nucleon. We report the first measurement of…

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…

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

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…

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…

hep-ex2022

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-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…

Prospective report of the French QCD community to the ESPPU 2025 with respect to the program of the LHC Run 5 and beyond and future colliders at CERN

Measurement of the helicity asymmetry E for the γ​p​→pπ0 reaction in the resonance region

Hot QCD White Paper

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

Nuclear modification of hard scattering processes in small systems at PHENIX

First CLAS12 measurement of DVCS beam-spin asymmetries in the extended valence region

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

Low-pT​ direct-photon production in Au+Au collisions at sNN​​​=39 and 62.4 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 Direct-Photon Cross Section and Double-Helicity Asymmetry at s​=510 GeV in p​+p​ Collisions

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

Measurement of the helicity asymmetry $E$ for the $γ p \to p π^{0}$ reaction in the resonance region

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}

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

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

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

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

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

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

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 $s_{_{N N}} = 200$ GeV as a function of transverse and longitudinal momenta

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