Calibration of the photon spectrometer PHOS of the ALICE experiment

KARASU UYSAL, Ayben | ALICE Collaboration

The procedure for the energy calibration of the high granularity electromagnetic calorimeter PHOS of the ALICE experiment is presented. The methods used to perform the relative gain calibration, to evaluate the geometrical alignment and the corresponding correction of the absolute energy scale, to obtain the nonlinearity correction coefficients and finally, to calculate the time-dependent calibration corrections, are discussed and illustrated by the PHOS performance in proton-proton (pp) collisions at √ s = 13 TeV. After applying all corrections, the achieved mass resolutions for π 0 and η mes ...Daha fazlası

Makale 2019 Institute of Physics Publishing 5 Görüntülenme

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Production of hadronic resonances at LHC energies with the ALICE experiment

KARASU UYSAL, Ayben | ALICE Collaboration

Hadronic resonances are strongly decaying particles with extremely short lifetimes of about few fm/c, which are comparable to or smaller than the lifetime of the system formed in relativistic collisions. Due to their short lifetimes, resonance particles can be used to investigate the freeze-out mechanisms after hadronization. This contribution summarizes the results of resonance particle productions measured by the ALICE collaboration at LHC from various colliding systems and energies. Measured mass, width, transverse momentum and particle ratios of those resonances have been reported. Theoret ...Daha fazlası

Konferans Bildirisi 2014 Institute of Physics Publishing 4 Görüntülenme