papers

Publications (37)

hep-ex2021

Invariant Jet Mass Measurements in Collisions at GeV at RHIC

STAR Collaboration, M. S. Abdallah, J. Adam +377

We present the first inclusive measurements of the invariant and SoftDrop jet mass in proton-proton collisions at GeV at STAR. The measurements are fully corrected f…

hep-ph2023

Pattern of Global Spin Alignment of and mesons in Heavy-Ion Collisions

STAR Collaboration, M. S. Abdallah, B. E. Aboona +379

Notwithstanding decades of progress since Yukawa first developed a description of the force between nucleons in terms of meson exchange, a full understanding of the strong interact…

hep-ex2022

Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at GeV

STAR Collaboration, M. S. Abdallah, B. E. Aboona +382

We report measurements of the longitudinal double-spin asymmetry, , for inclusive jet and dijet production in polarized proton-proton collisions at midrapidity and center-o…

nucl-ex2022

Global -hyperon polarization in Au+Au collisions at GeV

M. S. Abdallah, B. E. Aboona, J. Adam +383

Global hyperon polarization, , in Au+Au collisions over a large range of collision energy, , was recently measured and successfully r…

nucl-ex2023

Search for the Chiral Magnetic Effect in Au+Au collisions at GeV with the STAR forward Event Plane Detectors

STAR Collaboration, B. E. Aboona, J. Adam +355

A decisive experimental test of the Chiral Magnetic Effect (CME) is considered one of the major scientific goals at the Relativistic Heavy-Ion Collider (RHIC) towards understanding…

nucl-ex2022

Measurement of inclusive electrons from open heavy-flavor hadron decays in + collisions at GeV with the STAR detector

STAR Collaboration, M. S. Abdallah, B. E. Aboona +383

We report a new measurement of the production cross section for inclusive electrons from open heavy-flavor hadron decays as a function of transverse momentum () at mid-r…

nucl-ex2023

Observation of Directed Flow of Hypernuclei H and H in = 3 GeV Au+Au Collisions at RHIC

STAR Collaboration, B. E. Aboona, J. Adam +338

We report here the first observation of directed flow () of the hypernuclei H and H in mid-central Au+Au collisions at = 3 GeV at RHIC. These…

nucl-ex2022

Measurement of cold nuclear matter effects for inclusive in +Au collisions at = 200 GeV

STAR Collaboration, M. S. Abdallah, B. E. Aboona +383

Measurement by the STAR experiment at RHIC of the cold nuclear matter (CNM) effects experienced by inclusive at mid-rapidity in 0-100\% +Au collisions at $\sqrt{s_{_{\mat…

nucl-ex2022

Tomography of Ultra-relativistic Nuclei with Polarized Photon-gluon Collisions

STAR Collaboration, M. S. Abdallah, B. E. Aboona +380

A linearly polarized photon can be quantized from the Lorentz-boosted electromagnetic field of a nucleus traveling at ultra-relativistic speed. When two relativistic heavy nuclei p…

hep-ex2021

Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at GeV

STAR Collaboration, M. S. Abdallah, J. Adam +378

We report high-precision measurements of the longitudinal double-spin asymmetry, , for midrapidity inclusive jet and dijet production in polarized collisions at a cent…

nucl-ex2022

Collision-System and Beam-Energy Dependence of Anisotropic Flow Fluctuations

STAR Collaboration, M. S. Abdallah, J. Adam +381

Elliptic flow measurements from two-, four- and six-particle correlations are used to investigate flow fluctuations in collisions of U+U at = 193 GeV, Cu+Au at $…

nucl-ex2022

Search for the chiral magnetic effect via charge-dependent azimuthal correlations relative to spectator and participant planes in Au+Au collisions at = 200 GeV

STAR Collaboration, M. S. Abdallah, J. Adam +376

The chiral magnetic effect (CME) refers to charge separation along a strong magnetic field due to imbalanced chirality of quarks in local parity and charge-parity violating domains…

nucl-ex2023

Evidence of Mass Ordering of Charm and Bottom Quark Energy Loss in Au+Au Collisions at RHIC

STAR Collaboration, M. S. Abdallah, B. E. Aboona +359

Partons traversing the strongly interacting medium produced in heavy-ion collisions are expected to lose energy depending on their color charge and mass. We measure the nuclear mod…

nucl-ex2022

Measurements of and Lifetimes and Yields in Au+Au Collisions in the High Baryon Density Region

STAR Collaboration, M. S. Abdallah, B. E. Aboona +388

We report precision measurements of hypernuclei and lifetimes obtained from Au+Au collisions at \snn = 3.0\,GeV and 7.2\,GeV collected by the STAR e…

nucl-ex2021

Measurement of the Sixth-Order Cumulant of Net-Proton Multiplicity Distributions in Au+Au Collisions at 27, 54.4, and 200 GeV at RHIC

STAR Collaboration, M. S. Abdallah, J. Adam +380

According to first principle Lattice QCD calculations, the transition from quark-gluon plasma to hadronic matter is a smooth crossover in the region . In this…

nucl-ex2022

Centrality and transverse momentum dependence of higher-order flow harmonics of identified hadrons in Au+Au collisions at = 200 GeV

STAR Collaboration, M. S. Abdallah, B. E. Aboona +383

We present high-precision measurements of elliptic, triangular, and quadrangular flow , , and , respectively, at midrapidity () for identified hadron…

nucl-ex2023

Beam energy dependence of the linear and mode-coupled flow harmonics in Au+Au collisions

STAR Collaboration, B. E. Aboona, J. Adam +341

The linear and mode-coupled contributions to higher-order anisotropic flow are presented for Au+Au collisions at = 27, 39, 54.4, and 200 GeV and compared t…

nucl-ex2023

production in Au+Au collisions at = 7.7, 11.5, 14.5, 19.6, 27 and 39 GeV from RHIC beam energy scan

STAR Collaboration, M. S. Abdallah, B. E. Aboona +359

We report the measurement of meson at midrapidity ( 1.0) in Au+Au collisions at ~=~7.7, 11.5, 14.5, 19.6, 27 and 39 GeV collected by the STAR expe…

nucl-ex2022

Two-particle correlations on transverse rapidity in Au+Au collisions at GeV at STAR

STAR Collaboration, M. S. Abdallah, B. E. Aboona +381

Two-particle correlation measurements projected onto two-dimensional, transverse rapidity coordinates (), allow access to dynamical properties of the QCD medium prod…

nucl-ex2022

Evidence for Nonlinear Gluon Effects in QCD and their Dependence at STAR

STAR Collaboration, M. S. Abdallah, B. E. Aboona +382

The STAR Collaboration reports measurements of back-to-back azimuthal correlations of di-s produced at forward pseudorapidities () in +, Al, and Au…

nucl-ex2023

Measurement of sequential suppression in Au+Au collisions at = 200 GeV with the STAR experiment

STAR Collaboration, B. E. Aboona, J. Adam +357

We report on measurements of sequential suppression in Au+Au collisions at = 200 GeV with the STAR detector at the Relativistic Heavy Ion Collider (R…

nucl-ex2023

Higher-Order Cumulants and Correlation Functions of Proton Multiplicity Distributions in = 3 GeV Au+Au Collisions at the RHIC STAR Experiment

STAR Collaboration, M. S. Abdallah, B. E. Aboona +358

We report a measurement of cumulants and correlation functions of event-by-event proton multiplicity distributions from fixed-target Au+Au collisions at = 3 GeV…

nucl-ex2022

Disappearance of partonic collectivity in = 3 GeV Au+Au collisions at RHIC

STAR Collaboration, M. S. Abdallah, B. E. Aboona +384

We report on the measurements of directed flow and elliptic flow for hadrons (, , , , , and ) from Au+Au collisions at $…

nucl-ex2022

Light Nuclei Collectivity from = 3 GeV Au+Au Collisions at RHIC

STAR Collaboration, M. S. Abdallah, B. E. Aboona +383

In high-energy heavy-ion collisions, partonic collectivity is evidenced by the constituent quark number scaling of elliptic flow anisotropy for identified hadrons. A breaking of th…

nucl-ex2022

Probing the gluonic structure of the deuteron with photoproduction in d+Au ultra-peripheral collisions

STAR Collaboration, M. S. Abdallah, B. E. Aboona +388

Understanding gluon density distributions and how they are modified in nuclei are among the most important goals in nuclear physics. In recent years, diffractive vector meson produ…

nucl-ex2022

Measurements of Proton High Order Cumulants in 3 GeV Au+Au Collisions and Implications for the QCD Critical Point

STAR Collaboration, M. S. Abdallah, B. E. Aboona +388

We report cumulants of the proton multiplicity distribution from dedicated fixed-target Au+Au collisions at 3.0 GeV, measured by the STAR experiment in the kinematic acceptance of…

nucl-ex2023

Azimuthal anisotropy measurement of (multi-)strange hadrons in Au+Au collisions at = 54.4 GeV

STAR Collaboration, M. S. Abdallah, B. E. Aboona +356

Azimuthal anisotropy of produced particles is one of the most important observables used to access the collective properties of the expanding medium created in relativistic heavy-i…

nucl-ex2021

Measurement of Momentum and Angular Distributions from Linearly Polarized Photon Collisions

STAR Collaboration, M. S. Abdallah, B. E. Aboona +383

The Breit-Wheeler process which produces matter and anti-matter from photon collisions is investigated experimentally through the observation of 6085 exclusive electron-positron pa…

nucl-ex2022

Measurement of and binding energy in Au+Au collisions at = 3 GeV

STAR Collaboration, M. S. Abdallah, B. E. Aboona +357

Measurements of mass and binding energy of and in Au+Au collisions at GeV are presented, with an aim to address the charge…

nucl-ex2023

Pion, kaon, and (anti-)proton production in U+U Collisions at = 193 GeV measured with the STAR detector

STAR Collaboration, M. S. Abdallah, B. E. Aboona +339

We present the first measurements of transverse momentum spectra of , , at midrapidity () in U+U collisions at = 193 GeV…

nucl-ex2021

Azimuthal anisotropy measurements of strange and multistrange hadrons in U+U collisions at GeV at the BNL Relativistic Heavy Ion Collider

STAR Collaboration, M. S. Abdallah, J. Adam +381

We present systematic measurements of azimuthal anisotropy for strange and multistrange hadrons (, , , and ) and mesons at midrapidity ( 1.0) in…

nucl-ex2021

Cumulants and Correlation Functions of Net-proton, Proton and Antiproton Multiplicity Distributions in Au+Au Collisions at energies available at the BNL Relativistic Heavy Ion Collider

STAR Collaboration, M. S. Abdallah, J. Adam +379

We report a systematic measurement of cumulants, , for net-proton, proton and antiproton multiplicity distributions, and correlation functions, , for proton and antipr…

nucl-ex2021

Search for the Chiral Magnetic Effect with Isobar Collisions at = 200 GeV by the STAR Collaboration at RHIC

STAR Collaboration, M. S. Abdallah, B. E. Aboona +383

The chiral magnetic effect (CME) is predicted to occur as a consequence of a local violation of and symmetries of the strong interaction amidst a strong electro-…

nucl-ex2023

Beam Energy Dependence of Fifth and Sixth-Order Net-proton Number Fluctuations in Au+Au Collisions at RHIC

STAR Collaboration, B. E. Aboona, J. Adam +357

We report the beam energy and collision centrality dependence of fifth and sixth order cumulants (, ) and factorial cumulants (, ) of net-proton and p…

nucl-ex2022

Probing Strangeness Canonical Ensemble with , and Production in Au+Au Collisions at

STAR Collaboration, M. S. Abdallah, B. E. Aboona +385

We report the first multi-differential measurements of strange hadrons of , and yields as well as the ratios of and in Au+Au collisions at $…

hep-ex2022

Azimuthal transverse single-spin asymmetries of inclusive jets and identified hadrons within jets from polarized collisions at = 200 GeV

STAR Collaboration, M. S. Abdallah, B. E. Aboona +357

The STAR Collaboration reports measurements of the transverse single-spin asymmetries, , for inclusive jets and identified `hadrons within jets' production at midrapidity from…

nucl-ex2022

Differential measurements of jet substructure and partonic energy loss in AuAu collisions at GeV

STAR Collaboration, M. S. Abdallah, B. E. Aboona +382

The STAR collaboration presents jet substructure measurements related to both the momentum fraction and the opening angle within jets in \pp and \AuAu collisions at \sqrtsn