Cosmic-muon characterization and annual modulation measurement with Double Chooz detectors Article Swipe
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1088/1475-7516/2017/02/017
· OA: W2554230957
A study on cosmic muons has been performed for the two identical near and far\nneutrino detectors of the Double Chooz experiment, placed at $\\sim$120 and\n$\\sim$300 m.w.e. underground respectively, including the corresponding\nsimulations using the MUSIC simulation package. This characterization has\nallowed to measure the muon flux reaching both detectors to be (3.64 $\\pm$\n0.04) $\\times$ 10$^{-4}$ cm$^{-2}$s$^{-1}$ for the near detector and (7.00\n$\\pm$ 0.05) $\\times$ 10$^{-5}$ cm$^{-2}$s$^{-1}$ for the far one. The seasonal\nmodulation of the signal has also been studied observing a positive correlation\nwith the atmospheric temperature, leading to an effective temperature\ncoefficient of $\\alpha_{T}$ = 0.212 $\\pm$ 0.024 and 0.355 $\\pm$ 0.019 for the\nnear and far detectors respectively. These measurements, in good agreement with\nexpectations based on theoretical models, represent one of the first\nmeasurements of this coefficient in shallow depth installations.\n
