1,722,775 research outputs found
Suppression of high transverse momentum D mesons in central Pb-Pb collisions at √sNN = 2.76 TeV
No full textThe production of the prompt charm mesons D0, D+, D∗+, and their an- tiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy √sNN = 2.76 TeV per nucleon-nucleon collision. The pt-differential production yields in the range 2 < pt < 16 GeV/c at central rapidity, |y| < 0.5, were used to calculate the nuclear modification factor RAA with respect to a proton-proton reference obtained from the cross section measured at √s = 7 TeV and scaled to √s = 2.76 TeV. For the three meson species, RAA shows a suppression by a factor 3–4, for transverse momenta larger than 5 GeV/c in the 20% most central collisions. The suppression is reduced for peripheral collisions
Latest results from NA57
No full textNA57 at the CERN SPS has studied the production of strange particles in Pb–Pb and p–Be col- lisions. Hyperon enhancements at 40 A GeV/c are presented and compared to results at 160 GeV/c beam momenta. The momentum spectra are analysed based on hydrodynamical models and freeze-out temperature, transverse and longitudinal flow velocities are extracted. Central-to- peripheral nuclear modification factors at 160 A GeV/c are calculated
Latest results from NA57
No full textNA57 at the CERN SPS has studied the production of strange particles in Pb–Pb and p–Be col- lisions. Hyperon enhancements at 40 A GeV/c are presented and compared to results at 160 GeV/c beam momenta. The momentum spectra are analysed based on hydrodynamical models and freeze-out temperature, transverse and longitudinal flow velocities are extracted. Central-to- peripheral nuclear modification factors at 160 A GeV/c are calculated
Production of K∗(892)0 and φ(1020) in pp collisions at √s = 7 TeV
Full text linkThe production of K∗(892)0 and φ(1020) in pp collisions at was measured by the ALICE experiment at the LHC. The yields and the transverse momentum spectra d2 N/dydp T at midrapidity |y|<0.5 in the range
NA57 main results
No full textThe CERN NA57 experiment was designed to study the production of strange and multi-strange particles in heavy ion collisions at SPS energies; its physics programme is essentially completed. A review of the main results is presented.The CERN NA57 experiment was designed to study the production of strange and multi-strange particles in heavy ion collisions at SPS energies; its physics programme is essentially completed. A review of the main results is presented
First Measurement of the strange particles Rcp nuclear modification factors in heavy-ion collisions at the SPS
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