Calibration of the photon spectrometer PHOS of the ALICE experiment

Chauvin, A.;Cicalo, C.;Falco, A. De;Fionda, F. M.;Usai, G. L.;
2019-01-01

Abstract

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 root s = 13 TeV. After applying all corrections, the achieved mass resolutions for pi(0) and eta mesons for p(T) > 1.7 GeV/c are sigma(pi 0)(m) = 4.56 +/- 0.03 MeV/c(2) and sigma(eta)(m) = 15.3 +/- 1.0 MeV/c(2), respectively.
2019
Inglese
14
5
P05025
29
Esperti anonimi
scientifica
Calorimeters; Detector alignment and calibration methods (lasers, sources, particlebeams)
Acharya, S.; Acosta, F. T. -.; Adamová, D.; Adhya, S. P.; Adler, A.; Adolfsson, J.; Aggarwal, M. M.; Rinella, G. Aglieri; Agnello, M.; Ahammed, Z.; Ah ...espandi
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
1024
open
File in questo prodotto:
File Dimensione Formato  
Acharya_2019_J._Inst._14_P05025.pdf

accesso aperto

Tipologia: versione editoriale
Dimensione 5.1 MB
Formato Adobe PDF
5.1 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Questionario e social

Condividi su:
Impostazioni cookie