7 research outputs found
Sociodemographic Impacts on Cancer Awareness and Beliefs in Newfoundland and Labrador(NL) Adults
Employee Life Satisfaction and SocialâCapital Factors Relating to Organizational Citizenship
Measurements of directed, elliptic, and triangular flow in CuAu collisions at GeV
International audienceMeasurements of anisotropic flow Fourier coefficients (vn) for inclusive charged particles and identified hadrons ϱ, K±, p, and pÂŻ produced at midrapidity in Cu+Au collisions at sNN=200 GeV are presented. The data were collected in 2012 by the PHENIX experiment at the Relativistic Heavy-Ion Collider (RHIC). The particle azimuthal distributions with respect to different-order symmetry planes Κn, for n=1, 2, and 3 are studied as a function of transverse momentum pT over a broad range of collision centralities. Mass ordering, as expected from hydrodynamic flow, is observed for all three harmonics. The charged-particle results are compared with hydrodynamical and transport model calculations. We also compare these Cu+Au results with those in Cu+Cu and Au+Au collisions at the same sNN and find that the v2 and v3, as a function of transverse momentum, follow a common scaling with 1/(ÉnNpart1/3)
Forward production in UU collisions at =193 GeV
International audienceThe invariant yields, dN/dy, for J/Ï production at forward rapidity (1.2<|y|<2.2) in U+U collisions at sNN=193GeV have been measured as a function of collision centrality. The invariant yields and nuclear-modification factor RAA are presented and compared with those from Au+Au collisions in the same rapidity range. Additionally, the direct ratio of the invariant yields from U+U and Au+Au collisions within the same centrality class is presented, and used to investigate the role of ccÂŻ coalescence. Two different parametrizations of the deformed Woods-Saxon distribution were used in Glauber calculations to determine the values of the number of nucleon-nucleon collisions in each centrality class, Ncoll, and these were found to give significantly different Ncoll values. Results using Ncoll values from both deformed Woods-Saxon distributions are presented. The measured ratios show that the J/Ï suppression, relative to binary collision scaling, is similar in U+U and Au+Au for peripheral and midcentral collisions, but that J/Ï show less suppression for the most central U+U collisions. The results are consistent with a picture in which, for central collisions, increase in the J/Ï yield due to ccÂŻ coalescence becomes more important than the decrease in yield due to increased energy density. For midcentral collisions, the conclusions about the balance between ccÂŻ coalescence and suppression depend on which deformed Woods-Saxon distribution is used to determine Ncoll
meson production in the forward/backward rapidity region in CuAu collisions at GeV
International audienceThe PHENIX experiment at the Relativistic Heavy Ion Collider has measured Ï meson production and its nuclear modification in asymmetric Cu+Au heavy-ion collisions at sNN=200 GeV at both forward Cu-going direction (1.2<y<2.2) and backward Au-going direction (â2.2<y<â1.2) rapidities. The measurements are performed via the dimuon decay channel and reported as a function of the number of participating nucleons, rapidity, and transverse momentum. In the most central events, 0%â20% centrality, the Ï meson yield integrated over 1<pT<5 GeV/c prefers a smaller value, which means a larger nuclear modification, in the Cu-going direction compared to the Au-going direction. Additionally, the nuclear-modification factor in Cu+Au collisions averaged over all centrality is measured to be similar to the previous PHENIX result in d+Au collisions for these rapidities
Shape, transverse size, and charged-hadron multiplicity of jets in pp collisions at
Measurements of jet characteristics from inclusive jet production in
proton-proton collisions at a centre-of-mass energy of 7 TeV are presented. The
data sample was collected with the CMS detector at the LHC during 2010 and
corresponds to an integrated luminosity of 36 inverse picobarns. The mean
charged hadron multiplicity, the differential and integral jet shape
distributions, and two independent moments of the shape distributions are
measured as functions of the jet transverse momentum for jets reconstructed
with the anti-kT algorithm. The measured observables are corrected to the
particle level and compared with predictions from various QCD Monte Carlo
generators.Comment: Replaced with published version. Added journal reference and DOI.
Supplementary data tables availabl