0000000001050160

AUTHOR

D. Peressounko

showing 2 related works from this author

Performance of the ALICE photon spectrometer PHOS

2003

Abstract We present in this paper the measured characteristics of a 64 lead–tungstate crystal array designed to detect high-energy photons and neutral mesons with the ALICE photon spectrometer PHOS. The array has been tested with electron and charged pion secondary beams delivered by the CERN PS and SPS synchrotrons. Photon energy and π 0 invariant mass resolutions are presented. The PHOS particle identification performance for data simulated with the AliRoot package is studied.

PhysicsNuclear and High Energy PhysicsPhotonLarge Hadron Collider25.75.Nq; 24.10.Lx; 25.75.-q; 29.40.VjMesonSpectrometerElectromagnetic calorimeters010308 nuclear & particles physicsPhysics::Instrumentation and DetectorsElectronPhoton energyHigh-energy gamma rays7. Clean energy01 natural sciencesParticle identificationQuark–gluon plasmaNuclear physicsPion0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]PWO scintillators010306 general physicsNuclear ExperimentInstrumentation
researchProduct

The ALICE Collaboration

2009

The production of mesons containing strange quarks (KS, φ) and both singly and doubly strange baryons ( , , and − + +) are measured at mid-rapidity in pp collisions at √ s = 0.9 TeV with the ALICE experiment at the LHC. The results are obtained from the analysis of about 250 k minimum bias events recorded in 2009. Measurements of yields (dN/dy) and transverse momentum spectra at mid-rapidity for inelastic pp collisions are presented. For mesons, we report yields (〈dN/dy〉) of 0.184 ± 0.002(stat.) ± 0.006(syst.) for KS and 0.021 ± 0.004(stat.) ± 0.003(syst.) for φ. For baryons, we find 〈dN/dy〉 = 0.048 ± 0.001(stat.) ± 0.004(syst.) for , 0.047 ± 0.002(stat.) ± 0.005(syst.) for and 0.0101 ± 0.0…

PhysicsStrange quarkNuclear and High Energy PhysicsLarge Hadron ColliderMeson010308 nuclear & particles physics7. Clean energy01 natural sciencesSpectral lineVisual artsNuclear physicsBaryonMinimum biasTransverse momentum0103 physical sciencesHigh Energy Physics::ExperimentAstrophysics::Earth and Planetary AstrophysicsALICE (propellant)Nuclear Experiment010306 general physics
researchProduct