C. Gal

Precision Measurement of the Beam-Normal Single-Spin Asymmetry in Forward-Angle Elastic Electron-Proton Scattering

QWeak collaboration, D. Androic, D. S. Armstrong +92

A beam-normal single-spin asymmetry generated in the scattering of transversely polarized electrons from unpolarized nucleons is an observable related to the imaginary part of the…

Parity-Violating Inelastic Electron-Proton Scattering at Low $Q^{2}$ Above the Resonance Region

QWeak Collaboration, D. Androic, D. S. Armstrong +74

We report the measurement of the parity-violating asymmetry for the inelastic scattering of electrons from the proton, at $Q^{2} = 0.082$ GeV $^{2}$ and $W = 2.23$ GeV, above the reson…

Precision MÃ¸ller Polarimetry for PREX and CREX

D. E. King, D. C. Jones, C. Gal +8

The PREX-2 and CREX experiments in Hall A at Jefferson Lab are precision measurements of parity violating elastic electron scattering from complex nuclei. One requirement was that…

$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…

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-ex2019

Nuclear dependence of the transverse single-spin asymmetry in the production of charged hadrons at forward rapidity in polarized $p + p$ , $p +$ Al, and $p +$ Au collisions at $s_{_{N N}} = 200$ GeV

C. Aidala, Y. Akiba, M. Alfred +300

We report on the nuclear dependence of transverse single-spin asymmetries (TSSAs) in the production of positively-charged hadrons in polarized $p^{↑} + p$ , $p^{↑} +$ Al a…

hep-ex2022

Measurement of lepton-jet correlation in deep-inelastic scattering with the H1 detector using machine learning for unfolding

H1 Collaboration, V. Andreev, M. Arratia +142

The first measurement of lepton-jet momentum imbalance and azimuthal correlation in lepton-proton scattering at high momentum transfer is presented. These data, taken with the H1 d…

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}=…

nucl-ex2014

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…

nucl-ex2012

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…

astro-ph.CO2010

HIFI spectroscopy of low-level water transitions in M82

A. Weiss, M. A. Requena-Torres, R. Guesten +23

We present observations of the rotational ortho-water ground transition, the two lowest para-water transitions, and the ground transition of ionised ortho-water in the archetypal s…

Measurement of the 1-jettiness event shape observable in deep-inelastic electron-proton scattering at HERA

The H1 collaboration, V. Andreev, M. Arratia +146

The H1 Collaboration reports the first measurement of the 1-jettiness event shape observable $I ¨ _{1}^{b}$ in neutral-current deep-inelastic electron-proton scattering (DIS). The observ…

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 $…

hep-ph2022

Snowmass 2021 White Paper: Electron Ion Collider for High Energy Physics

R. Abdul Khalek, U. D'Alesio, M. Arratia +105

Electron Ion Collider (EIC) is a particle accelerator facility planned for construction at Brookhaven National Laboratory on Long Island, New York by the United States Department o…

Transverse single-spin asymmetry of midrapidity $I ¨ ^{0}$ and $I^\cdot$ 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…

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…

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 ( $1.4 < I^\cdot < 2.4$ ,…

nucl-ex2014

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…

nucl-ex2019

Comparing proton momentum distributions in $A = 2$ and 3 nuclei via $^{2}$ H $^{3}$ H and $^{3}$ He $(e, e^{'} p)$ measurements

R. Cruz-Torres, S. Li, F. Hauenstein +125

We report the first measurement of the $(e, e^{'} p)$ reaction cross-section ratios for Helium-3 ( $^{3}$ He), Tritium ( $^{3}$ H), and Deuterium ( $d$ ). The measurement covered a missing moment…

nucl-ex2012

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…

Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA

The H1 collaboration, V. Andreev, M. Arratia +141

In deep-inelastic positron-proton scattering, the lepton-jet azimuthal angular asymmetry is measured using data collected with the H1 detector at HERA. When the average transverse…

hep-ex2022

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…

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…

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…

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…

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…

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…

hep-ph2022

Deeply virtual Compton scattering cross section at high Bjorken $x_{B}$

F. Georges, M. N. H. Rashad, A. Stefanko +159

We report high-precision measurements of the Deeply Virtual Compton Scattering (DVCS) cross section at high values of the Bjorken variable $x_{B}$ . DVCS is sensitive to the Generaliz…

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…

physics.ins-det2022

ATHENA Detector Proposal -- A Totally Hermetic Electron Nucleus Apparatus proposed for IP6 at the Electron-Ion Collider

ATHENA Collaboration, J. Adam, L. Adamczyk +433

ATHENA has been designed as a general purpose detector capable of delivering the full scientific scope of the Electron-Ion Collider. Careful technology choices provide fine trackin…

Transverse momentum dependent forward neutron single spin asymmetries in transversely polarized $p$ $+$ $p$ collisions at $s = 200$ GeV

U. A. Acharya, C. Aidala, Y. Akiba +311

In 2015, the PHENIX collaboration has measured very forward ( $I^\cdot > 6.8$ ) single-spin asymmetries of inclusive neutrons in transversely polarized proton-proton and proton-nucleus coll…

nucl-ex2019

Precision Measurement of the Weak Charge of the Proton

D. Androic, D. S. Armstrong, A. Asaturyan +96

The fields of particle and nuclear physics have undertaken extensive programs to search for evidence of physics beyond that explained by current theories. The observation of the Hi…

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

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

The $J / I ¨ $ and $I ¨ (2 S)$ 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…

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…

astro-ph2008

LIINUS/SERPIL: a design study for interferometric imaging spectroscopy at the LBT

F. Mueller Sanchez, C. Gal, F. Eisenhauer +4

We present two design concepts and the science drivers of a proposed near-infrared interferometric integral field spectrograph for the LBT. This instrument will expand the capabili…

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…

nucl-ex2012

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…

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…

Inclusive studies of two- and three-nucleon short-range correlations in $^{3}$ H and $^{3}$ He

S. Li, S. N. Santiesteban, J. Arrington +113

Inclusive electron scattering at carefully chosen kinematics can isolate scattering from the high-momentum nucleons in short-range correlations (SRCs). SRCs are produced by the har…

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…

physics.ins-det2021

Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report

R. Abdul Khalek, A. Accardi, J. Adam +410

This report describes the physics case, the resulting detector requirements, and the evolving detector concepts for the experimental program at the Electron-Ion Collider (EIC). The…

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…

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…

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…

Impact of jet-production data on the next-to-next-to-leading-order determination of HERAPDF2.0 parton distributions

H1, ZEUS Collaborations, : +234

The HERAPDF2.0 ensemble of parton distribution functions (PDFs) was introduced in 2015. The final stage is presented, a next-to-next-to-leading-order (NNLO) analysis of the HERA da…

New Measurements of the Beam-Normal Single Spin Asymmetry in Elastic Electron Scattering Over a Range of Spin-0 Nuclei

PREX, CREX Collaborations, : +104

We report precision determinations of the beam normal single spin asymmetries ( $A_{n}$ ) in the elastic scattering of 0.95 and 2.18~GeV electrons off $^{12}$ C, $^{40}$ Ca, $^{48}$ Ca, a…

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…

Revealing the short-range structure of the "mirror nuclei" $^{3}$ H and $^{3}$ He

S. Li, R. Cruz-Torres, N. Santiesteban +113

When protons and neutrons (nucleons) are bound into atomic nuclei, they are close enough together to feel significant attraction, or repulsion, from the strong, short-distance part…

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…

Measurements of multiparticle correlations in $d$ $+$ Au collisions at 200, 62.4, 39, and 19.6 GeV and $p$ $+$ Au collisions at 200 GeV and implications for collective behavior

C. Aidala, Y. Akiba, M. Alfred +314

Recently, multiparticle-correlation measurements of relativistic $p / d /^{3}$ He $+$ Au, $p$ $+$ Pb, and even $p$ $+$ $p$ collisions have shown surprising collective signatures. Here we prese…

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…

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 the Nucleon $F_{2}^{n} / F_{2}^{p}$ Structure Function Ratio by the Jefferson Lab MARATHON Tritium/Helium-3 Deep Inelastic Scattering Experiment

MARATHON Collaboration, D. Abrams, H. Albataineh +129

The ratio of the nucleon $F_{2}$ structure functions, $F_{2}^{n} / F_{2}^{p}$ , is determined by the MARATHON experiment from measurements of deep inelastic scattering of electrons from $^{3}$ H a…

nucl-ex2017

Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity $p$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV

C. Aidala, Y. Akiba, M. Alfred +270

We present the first measurements of long-range angular correlations and the transverse momentum dependence of elliptic flow $v_{2}$ in high-multiplicity $p$ $+$ Au collisions at $\sqr…

physics.ins-det2024

Ultra-High precision Compton polarimetry at 2 GeV

A. Zec, S. Premathilake, J. C. Cornejo +13

We report a high precision measurement of electron beam polarization using Compton polarimetry. The measurement was made in experimental Hall A at Jefferson Lab during the CREX exp…

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…

nucl-ex2013

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…

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…

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 $\…

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…

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…

hep-ex2019

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…

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_{…

hep-ph2023

The Present and Future of QCD

P. Achenbach, D. Adhikari, A. Afanasev +400

This White Paper presents the community inputs and scientific conclusions from the Hot and Cold QCD Town Meeting that took place September 23-25, 2022 at MIT, as part of the Nuclea…

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…

Disentangling centrality bias and final-state effects in the production of high- $p_{T}$ $I ¨ ^{0}$ using direct $I^^{3}$ in $d$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV

N. J. Abdulameer, U. Acharya, C. Aidala +275

PHENIX presents a simultaneous measurement of the production of direct $I^^{3}$ and $I ¨ ^{0}$ in $d$ $+$ Au collisions at $s_{_{N N}} = 200$ GeV over a $p_{T}$ range of 7.5 to 18 GeV/ $c$ …

Form Factors and Two-Photon Exchange in High-Energy Elastic Electron-Proton Scattering

M. E. Christy, T. Gautam, L. Ou +167

We present new precision measurements of the elastic electron-proton scattering cross section for momentum transfer (Q $^{2}$ ) up to 15.75~\gevsq. Combined with existing data, these p…

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…

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…

Nuclear dependence of the transverse-single-spin asymmetry for forward neutron production in polarized $p$ $+$ $A$ collisions at $s_{_{N N}} = 200$ GeV

C. Aidala, Y. Akiba, M. Alfred +312

During 2015 the Relativistic Heavy Ion Collider (RHIC) provided collisions of transversely polarized protons with Au and Al nuclei for the first time, enabling the exploration of t…

nucl-ex2021

Measurement of the Beam-Normal Single-Spin Asymmetry for Elastic Electron Scattering from $^{12}$ C and $^{27}$ Al

QWeak Collaboration, D. Androic, D. S. Armstrong +82

We report measurements of the parity-conserving beam-normal single-spin elastic scattering asymmetries $B_{n}$ on $^{12}$ C and $^{27}$ Al, obtained with an electron beam polarized tra…

Single-spin asymmetry of $J / I ¨ $ 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 / I ¨ $ production at forward and backward rapidity, $1.2 < ∣ y ∣ < 2.2$ , as a function of $J / I ¨ $ transverse momentum ( $p_{T}$ ) and Feynm…

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…

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…

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…

Probing few-body nuclear dynamics via 3H and 3He (e,e'p)pn cross-section measurements

R. Cruz-Torres, D. Nguyen, F. Hauenstein +125

We report the first measurement of the \eep three-body breakup reaction cross sections in helium-3 ( $^{3}$ He) and tritium ( $^{3}$ H) at large momentum transfer ($\langle Q^2 \rangle \ap…

Measurement of the Parity-Violating Asymmetry in the N to $I^$ Transition at Low $Q^{2}$

D. Adhikari, T. Alshayeb, D. Androic +70

We report the measurement of the parity-violating asymmetry in the N to $I^$ transition via the $e^{-} + p \to e^{-} + I^^{+}$ reaction at two different kinematic points with low…

Observation and differential cross section measurement of neutral current DIS events with an empty hemisphere in the Breit frame

The H1 collaboration, V. Andreev, M. Arratia +146

The Breit frame provides a natural frame to analyze lepton-proton scattering events. In this reference frame, the parton model hard interactions between a quark and an exchanged bo…

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…