Results from the ARGO-YBJ experiment

Abstract

The ARGO-YBJ experiment consists of a 5000 m 2 single layer of Resistive Plate Chambers situated at Yangbajing, Tibet (P.R. of China), 4300 meters a.s.l. (atmospheric depth 600 g/cm 2 ). The percentage of active area all over the carpet is 92% and a partially instrumented guard ring (1700 m 2 ) around the central zone extends the instrumented area up to 11000 m 2 . The experiment is operated in scaler mode, shower mode and analog mode and is sensitive to cosmic rays in the 10 9 -10 15 eV energy range. From few hundreds GeV on, the arrival direction of cosmic rays is inferred by the study of the induced extensive air showers. A review of the most important results of the ARGO-YBJ experiment in gamma-ray astronomy and cosmic-ray physics will be given, focusing on the potential of RPCs in ground-based astroparticle physics.

Challenges for resistive gaseous detectors towards RPC2014

“…damental issues in both astrophysics (ARGO-cosmic rays, [19]) and particle physics (OPERAneutrino oscillations, [20,21]). As compared to ARGO and OPERA, the 140 m 2 ALICE muon spectrometer represents a slightly different use-case of the streamer mode operation.…”

Resistive Plate Chambers in the ARGO-YBJ experiment: operational features monitoring and control

“…The stability of the detector response is mandatory in the ARGO-YBJ experiment, which is supposed to run uninterruptedly for at least 5 years. The main features of ARGO-YBJ and its physics performance were discussed in another contribution to this workshop [1]. The present discussion is focused on the stability of the current absorbed by the detector and on the development of a procedure to stabilize the detector response.…”

Operational features, monitoring and control for the RPCs in the ARGO-YBJ experiment

“…The ARGO-YBJ experiment (Astrophysical Radiation with Ground-based Observatory at Yang-BaJin), located at an altitude of 4300 meters near the town of YangBaJin in the Tibet region of the People's Republic of China, has been running since November 2007 providing results in γ-ray astronomy and cosmic-ray physics in the primary energy range between few hundred GeV and ∼ 100 TeV [1]. Gamma rays and cosmic rays with energy greater than a few hundred GeV can only be observed with a high-altitude, ground-based detector.…”