A. Berdnikov

Transverse single-spin asymmetry of forward $η$ mesons in $p^{\uparrow}+ p$ collisions at $\sqrt{s} = 200$ GeV

U. Acharya, C. Aidala, Y. Akiba, R. Akimoto et autres

Utilizing the 2012 transversely polarized proton data from the Relativistic Heavy Ion Collider at Brookhaven National Laboratory, the forward $η$-meson transverse single-spin asymmetry ($A_N$) was measured for $p^{\uparrow}+p$ collisions at $\sqrt{s}=200$ GeV as a function of Feynman-x ($x_F$) for $0.2<|x_F|<0.8$ and transverse …

fr (code pays fourni par la source)

Cross sections of $η$ mesons in $p$$+$$p$ collisions at forward rapidity at $\sqrt{s}=500$ GeV and central rapidity at $\sqrt{s}=510$ GeV

U. Rajendra Acharya, A. Adare, C. Aidala, Y. Akiba et autres

We present the first measurements of the forward and midrapidity $η$-meson cross sections from $p$$+$$p$ collisions at $\sqrt{s}=500$ and $510$~GeV, respectively. We also report the midrapidity $η/π^0$ ratio at 510 GeV. The forward cross section is measured differentially in $η$-meson transverse momentum …

fr (code pays fourni par la source)

Low-mass vector-meson production at forward rapidity in $p$$+$$p$ and Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$~GeV

U. Rajendra Acharya, A Adare, C. Aidala, Y. Akiba et autres

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low-mass vector-meson ($ω+ρ$ and $ϕ$) production through the dimuon decay channel at forward rapidity $(1.2<|\mbox{y}|<2.2)$ in $p$$+$$p$ and Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$~GeV. The low-mass vector-meson yield and nuclear-modification factor were measured …

Azimuthal anisotropy of direct photons in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV

U. Rajendra Acharya, A. Adare, C. Aidala, Y. Akiba et autres

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 collisions at $\sqrt{s_{_{NN}}}=200$ GeV. The results are presented in 10\% wide bins of collision centrality and cover the …

Centrality dependence of Lévy-stable two-pion Bose-Einstein correlations in s N N = 200 GeV Au + Au collisions

N. J. Abdulameer, U. Rajendra Acharya, A. Adare, C. Aidala et autres

Color deconfinement and chiral-symmetry restoration have long been predicted by QCD theory. Color deconfinement in the form of a nearly perfect fluid of quarks was reported by all four RHIC experiments in 2005. Now, the PHENIX Collaboration details two-pion L\'evy-stable Bose-Einstein correlation …

hu, us, jp, ru, au, kr, in, il, br, fr, cz (code pays fourni par la source)

Measurements of $${\pi}^{\mathbf{0}}$$ Elliptic Flow in Cu $$\boldsymbol{+}$$ Au Collisions

E Bannikov, A. Berdnikov, Y. Berdnikov, D. Kotov et autres

Studying the properties of deconfined state of partonic matter, or so-called quark-gluon plasma (QGP), can be performed using different observables, such as azimuthal anisotropy of emitted hadrons in heavy-ion collisions. To quantify observed azimuthal anisotropy in momentum space the elliptic flow ( …

ru (code pays fourni par la source)

Jet modification via π 0 -hadron correlations in Au + Au collisions at s N N = 200 GeV

N. J. Abdulameer, U. Rajendra Acharya, A. Adare, S. Afanasiev et autres

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 charged hadrons with transverse momenta in the range 4--12 $\mathrm{GeV}/c$ and 0.5--7 $\mathrm{GeV}/c$, respectively, have been measured by the PHENIX experiment …

hu, us, ru, jp, fr, de, au, kr, in, il, br (code pays fourni par la source)

Measurement of elliptic flow of J$/ψ$ in $\sqrt{s_{_{NN}}}=200$ GeV Au$+$Au collisions at forward rapidity

U. Acharya, A. Adare, C. Aidala, Y. Akiba et autres

We report the first measurement of the azimuthal anisotropy of J$/ψ$ at forward rapidity ($1.2<|η|<2.2$) in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV at the Relativistic Heavy Ion Collider. The data were collected by the PHENIX experiment in 2014 and 2016 with integrated luminosity …

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

U. Acharya, A. Adare, C. Aidala, Y. Akiba et autres

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 samples of Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV collected by the PHENIX experiment in 2014 and 2016 with …

hu, us, es, fr, jp, ru, mx, kr, cz, in (code pays fourni par la source)

Multiplicity dependent $J/ψ$ and $ψ(2S)$ production at forward and backward rapidity in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV

U. Rajendra Acharya, C. Aidala, Y. Akiba, M. Alfred et autres

The $J/ψ$ and $ψ(2S)$ charmonium states, composed of $c\bar{c}$ quark pairs and known since the 1970s, are widely believed to serve as ideal probes to test quantum chromodynamics in high-energy hadronic interactions. However, there is not yet a complete understanding of the …

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

U. Rajendra Acharya, C. Aidala, Y. Akiba, R. Akimoto et autres

The jet cross-section and jet-substructure observables in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV were measured by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC). Jets are reconstructed from charged-particle tracks and electromagnetic-calorimeter clusters using the anti-$k_{t}$ algorithm with a jet radius …

fr (code pays fourni par la source)

Measurements of Hadronic Elliptic Flows at PHENIX

E Bannikov, A. Berdnikov, Y. Berdnikov, D. O. Kotov et autres

One of the key tasks of the PHENIX experiment is studying the properties of the quark–gluon plasma (QGP). An efficient method for studying the properties of the QGP is measuring the azimuthal anisotropy of particle production in ultrarelativistic collisions of heavy ions. …

ru (code pays fourni par la source)