TY - JOUR
T1 - Detection of atmospheric muons with ALICE detectors
AU - Alessandro, B.
AU - Cortes Maldonado, I.
AU - Cuautle, E.
AU - Fernández Tellez, A.
AU - Gómez Jiménez, R.
AU - Gonzalez Santos, H.
AU - Herrera Corral, G.
AU - León, I.
AU - Martínez, M. I.
AU - Muñoz Mata, J. L.
AU - Podesta, P.
AU - Ramírez Reyes, A.
AU - Rodríguez Cahuantzi, M.
AU - Sitta, M.
AU - Subieta, M.
AU - Tejeda Muñoz, G.
AU - Vargas, A.
AU - Vergara, S.
PY - 2010/5/11
Y1 - 2010/5/11
N2 - The calibration, alignment and commissioning of most of the ALICE (A Large Ion Collider Experiment at the CERN LHC) detectors have required a large amount of cosmic events during 2008. In particular two types of cosmic triggers have been implemented to record the atmospheric muons passing through ALICE. The first trigger, called ACORDE trigger, is performed by 60 scintillators located on the top of three sides of the large L3 magnet surrounding the central detectors, and selects atmospheric muons. The Silicon Pixel Detector (SPD) installed on the first two layers of the Inner Tracking System (ITS) gives the second trigger, called SPD trigger. This trigger selects mainly events with a single atmospheric muon crossing the SPD. Some particular events, in which the atmospheric muon interacts with the iron of the L3 magnet and creates a shower of particles crossing the SPD, are also selected. In this work the reconstruction of events with these two triggers will be presented. In particular, the performance of the ACORDE detector will be discussed by the analysis of multi-muon events. Some physical distributions are also shown.
AB - The calibration, alignment and commissioning of most of the ALICE (A Large Ion Collider Experiment at the CERN LHC) detectors have required a large amount of cosmic events during 2008. In particular two types of cosmic triggers have been implemented to record the atmospheric muons passing through ALICE. The first trigger, called ACORDE trigger, is performed by 60 scintillators located on the top of three sides of the large L3 magnet surrounding the central detectors, and selects atmospheric muons. The Silicon Pixel Detector (SPD) installed on the first two layers of the Inner Tracking System (ITS) gives the second trigger, called SPD trigger. This trigger selects mainly events with a single atmospheric muon crossing the SPD. Some particular events, in which the atmospheric muon interacts with the iron of the L3 magnet and creates a shower of particles crossing the SPD, are also selected. In this work the reconstruction of events with these two triggers will be presented. In particular, the performance of the ACORDE detector will be discussed by the analysis of multi-muon events. Some physical distributions are also shown.
KW - ACORDE
KW - ALICE experiment
KW - Atmospheric muons
KW - Cosmic rays
KW - Scintillation detectors
UR - http://www.scopus.com/inward/record.url?scp=79952699878&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2009.08.062
DO - 10.1016/j.nima.2009.08.062
M3 - Article
SN - 0168-9002
VL - 617
SP - 57
EP - 61
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 1-3
ER -