Publications (57)
Reaction plane correlated triangular flow in Au+Au collisions at GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +349
We measure triangular flow relative to the reaction plane at 3 GeV center-of-mass energy in Au+Au collisions at the BNL Relativistic Heavy Ion Collider. A significant signal…
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…
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…
Study of Central Exclusive Production of , and Pairs in Proton-Proton Collisions at GeV with the STAR Detector at RHIC
STAR Collaboration, B. E. Aboona, J. Adam +378
We report on the first measurement of the Central Exclusive Production process in proton-proton collisions: (where ) at the center-of…
Measurement of electrons from open heavy-flavor hadron decays in Au+Au collisions at GeV with the STAR detector
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +359
We report a new measurement of the production of electrons from open heavy-flavor hadron decays (HFEs) at mid-rapidity ( 0.7) in Au+Au collisions at G…
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…
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…
The Influence of Synthesis Parameters on Microstructures and Superconducting Properties of MgB2 Bulks
Y. F. Wu, Y. Feng, G. Yan +8
We succeeded in the synthesis of high-Jc MgB2 bulks via high energy ball-milling of elemental Mg and B powder at ambient temperatures. Alternatively to longtime mechanical alloying…
Observation of the Antimatter Hypernucleus
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +350
At the origin of the Universe, asymmetry between the amount of created matter and antimatter led to the matter-dominated Universe as we know today. The origins of this asymmetry re…
Event-by-event correlations between () hyperon global polarization and handedness with charged hadron azimuthal separation in Au+Au collisions at from STAR
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +342
Global polarizations () of () hyperons have been observed in non-central heavy-ion collisions. The strong magnetic field primarily created by the spectator protons…
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…
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…
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…
Correlations of event activity with hard and soft processes in + Au collisions at = 200 GeV at STAR
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +346
With the STAR experiment at the BNL Relativisic Heavy Ion Collider, we characterize = 200 GeV p+Au collisions by event activity (EA) measured within the pseu…
Upper Limit on the Chiral Magnetic Effect in Isobar Collisions at the Relativistic Heavy-Ion Collider
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +342
The chiral magnetic effect (CME) is a phenomenon that arises from the QCD anomaly in the presence of an external magnetic field. The experimental search for its evidence has been o…
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…
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…
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…
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…
Elliptic Flow of Heavy-Flavor Decay Electrons in Au+Au Collisions at = 27 and 54.4 GeV at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +359
We report on new measurements of elliptic flow () of electrons from heavy-flavor hadron decays at mid-rapidity () in Au+Au collisions at = 27 a…
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…
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…
Influence of Preparation Process on Microstructure, Critical Current Density and Tc of MgB2/Fe/Cu Wires
Y. F. Wu, G. Yan, J. S. Li +7
The powder-in-tube MgB2 wires were prepared by high energy milling of Mg and B powder. The powder was not mechanically alloyed for 2h short milling time. However, the MgB2 grains i…
Measurement of flow coefficients in high-multiplicity +Au, +Au and HeAu collisions at =200 GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +350
Flow coefficients ( and ) are measured in high-multiplicity +Au, +Au, and HeAu collisions at a center-of-mass energy of = 200 G…
Production of Protons and Light Nuclei in Au+Au Collisions at = 3 GeV with the STAR Detector
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +349
We report the systematic measurement of protons and light nuclei production in Au+Au collisions at = 3 GeV by the STAR experiment at the Relativistic Heavy…
Measurement of transverse polarization of and hyperons inside jets in collisions at GeV
STAR Collaboration, B. E. Aboona, J. Adam +363
A surprisingly large transverse polarization of hyperons in unpolarized hadron-nucleon/nucleus collisions has been observed for 50 years, and the origin of this polarization r…
Identified charged hadron production in Au+Au collisions at = 54.4 GeV with the STAR detector
STAR Collaboration, B. E. Aboona, J. Adam +360
We present results on the production of , , , and in Au+Au collisions at = 54.4~GeV using the STAR detector at RHIC, at midra…
Probing Late-Stage Hadronic Interactions at High Baryon Density via Production in the RHIC Beam Energy Scan Program
STAR Collaboration, B. E. Aboona, J. Adam +360
A precision measurement of the meson yield is reported in Au+Au collisions at and using the high-statistic…
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…
Energy Independence of the Collins Asymmetry in Collisions
STAR Collaboration, B. E. Aboona, J. Adam +367
The STAR experiment reports new, high-precision measurements of the transverse single-spin asymmetries for within jets, namely the Collins asymmetries, from transversely…
Preparation of 18-filament Cu/NbZr/MgB2 tape with high transport critical current density
C. F. Liu, S. J. Du, G. Yan +1
Cu-stabilized 18-filament MgB2 tapes with NbZr buffer have been fabricated by using powder-in-tube technique. The phase composition and microstructure were examined by X-ray diffra…
Onset of Constituent Quark Number Scaling in Heavy-Ion Collisions at RHIC
STAR Collaboration, B. E. Aboona, J. Adam +355
Partonic collectivity is one of the necessary signatures for the formation of quark-gluon plasma in high-energy nuclear collisions. Number of constituent quarks (NCQ) scaling has b…
Observation of charmonium sequential suppression in heavy-ion collisions at the Relativistic Heavy Ion Collider
STAR Collaboration, B. E. Aboona, J. Adam +370
We report measurements of charmonium sequential suppression in Ru+Ru and Zr+Zr collisions at = 200 GeV with the STAR experiment at the Relativistic Heavy…
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…
Improved Superconducting Properties in Bulk MgB2 Prepared by High Energy Milling of Mg and B Powder
Y. F. Wu, Y. F. Lu, G. Yan +7
The MgB2 bulks were prepared by high energy milling of Mg and B powder. The correlations among milling times, microstructure and superconducting properties were investigated in MgB…
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…
Jet-hadron correlations with respect to the event plane in = 200 GeV Au+Au collisions in STAR
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +348
Angular distributions of charged particles relative to jet axes are studied in = 200 GeV Au+Au collisions as a function of the jet orientation with respect…
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…
Beam Energy Dependence of Triton Production and Yield Ratio () in Au+Au Collisions at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +342
We report the triton () production in mid-rapidity ( 0.5) Au+Au collisions at = 7.7--200 GeV measured by the STAR experiment from the first phase of…
Energy Dependence of Intermittency for Charged Hadrons in Au+Au Collisions at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +364
Density fluctuations near the QCD critical point can be probed via an intermittency analysis in relativistic heavy-ion collisions. We report the first measurement of intermittency…
Inclusive jet cross section in collisions at and GeV
STAR Collaboration, B. E. Aboona, J. Adam +377
Jets are collimated clusters of particles formed by the hadronization of partons following a hard interaction. In proton-proton () collisions at the Relativistic Heavy Ion Coll…
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…
Measurement of Kaon Directed Flow in Au+Au Collisions in the High Baryon Density Region
STAR Collaboration, B. E. Aboona, J. Adam +360
Rapidity-odd directed flow measurements are presented for and in AuAu collisions at = 3.0, 3.2, 3.5, and 3.9 GeV with the STAR exp…
Observation of the electromagnetic field effect via charge-dependent directed flow in heavy-ion collisions at the Relativistic Heavy Ion Collider
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +339
The deconfined quark-gluon plasma (QGP) created in relativistic heavy-ion collisions enables the exploration of the fundamental properties of matter under extreme conditions. Non-c…
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…
The STAR Forward Silicon Tracker
J. D. Brandenburg, Y. Chang, J. Dong +21
The Forward Silicon Tracker (FST) is a pivotal component of the forward upgrade of the Solenoidal Tracker at RHIC (STAR), designed to discern hadron charge signs with a momentum re…
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…
Measurements of charged-particle multiplicity dependence of higher-order net-proton cumulants in + collisions at 200 GeV from STAR at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +346
We report on the charged-particle multiplicity dependence of net-proton cumulant ratios up to sixth order from GeV + collisions at the Relativistic Heavy Ion C…
Measurements of the elliptic and triangular azimuthal anisotropies in central He+Au, +Au and +Au collisions at $\mbox{$\sqrt{s_{\mathrm{NN}}}$}$ = 200 GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +343
The elliptic () and triangular () azimuthal anisotropy coefficients in central He+Au, +Au, and +Au collisions at $\mbox{$\sqrt{s_{\mathrm{NN}}}$}$ = 200 GeV a…
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…
Results on Elastic Cross Sections in Proton-Proton Collisions at GeV with the STAR Detector at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +351
We report results on an elastic cross section measurement in proton-proton collisions at a center-of-mass energy GeV, obtained with the Roman Pot setup of the STAR e…
Epidemic spread in weighted networks
G. Yan, Tao Zhou, Jie Wang +2
We study the detailed epidemic spreading process in scale-free networks with weight that denote familiarity between two people or computers. The result shows that spreading velocit…
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…
Collision-energy Dependence of Deuteron Cumulants and Proton-deuteron Correlations in Au+Au collisions at RHIC
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +351
We report the first measurements of cumulants, up to order, of deuteron number distributions and proton-deuteron correlations in Au+Au collisions recorded by the STAR expe…
Estimate of Background Baseline and Upper Limit on the Chiral Magnetic Effect in Isobar Collisions at GeV at the Relativistic Heavy-Ion Collider
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +342
For the search of the chiral magnetic effect (CME), STAR previously presented the results from isobar collisions (, ${^{96}_{40}\text{Z…
Longitudinal and transverse spin transfer to and hyperons in polarized + collisions at GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +364
The longitudinal and transverse spin transfers to () hyperons in polarized proton-proton collisions are expected to be sensitive to the helicity and transversity…
Hyperon polarization along the beam direction relative to the second and third harmonic event planes in isobar collisions at = 200 GeV
STAR Collaboration, M. I. Abdulhamid, B. E. Aboona +345
The polarization of and hyperons along the beam direction has been measured relative to the second and third harmonic event planes in isobar Ru+Ru and Zr+Zr collision…