Cosmic-muon characterization and annual modulation measurement with Double Chooz detectors

Abstract

A study on cosmic muons has been performed for the two identical near and far neutrino detectors of the Double Chooz experiment, placed at $\sim$120 and $\sim$300 m.w.e. underground respectively, including the corresponding simulations using the MUSIC simulation package. This characterization has allowed to measure the muon flux reaching both detectors to be (3.64 $\pm$ 0.04) $\times$ 10${}^{-4}$ cm${}^{-2}$s${}^{-1}$ for the near detector and (7.00 $\pm$ 0.05) $\times$ 10${}^{-5}$ cm${}^{-2}$s${}^{-1}$ for the far one. The seasonal modulation of the signal has also been studied observing a positive correlation with the atmospheric temperature, leading to an effective temperature coefficient of ${\alpha }_T$ = 0.212 $\pm$ 0.024 and 0.355 $\pm$ 0.019 for the near and far detectors respectively. These measurements, in good agreement with expectations based on theoretical models, represent one of the first measurements of this coefficient in shallow depth installations.

arXiv comment20 pages, 11 figures

References in corpus (10)

• Improved measurements of the neutrino mixing angle ${\theta }_{13}$ with the Double Chooz detector
• A Three-Dimensional Code for Muon Propagation through the Rock: MUSIC
• Muon Simulations for Super-Kamiokande, KamLAND and CHOOZ
• Cosmic-muon flux and annual modulation in Borexino at 3800 m water-equivalent depth
• Observation of muon intensity variations by season with the MINOS far detector
• The atmospheric charged kaon/pion ratio using seasonal variation methods
• Atmospheric Variations as observed by IceCube
• Flux Modulations seen by the Muon Veto of the GERDA Experiment
• Precision Muon Reconstruction in Double Chooz
• Characterization of the Spontaneous Light Emission of the PMTs used in the Double Chooz Experiment

Cited by in corpus (14)

• Modulations of the Cosmic Muon Signal in Ten Years of Borexino Data
• The muon intensity in the Felsenkeller shallow underground laboratory
• Characterization of the varying flux of atmospheric muons measured with the Large Volume Detector for 24 years
• Yields and production rates of cosmogenic ${}^9$Li and ${}^8$He measured with the Double Chooz near and far detectors
• Middle-atmosphere dynamics observed with a portable muon detector
• Observation of seasonal variation of atmospheric multiple-muon events in the NOvA Near Detector
• Gamma-induced background in the KATRIN main spectrometer
• Muon-induced background in the KATRIN main spectrometer
• Observation of Seasonal Variations of the Flux of High-Energy Atmospheric Neutrinos with IceCube
• Atmospheric Temperature Effect in secondary cosmic rays observed with a two square meter ground-based detector
• On the Mechanism of Temperature Variations in the Average Energy of Muons at Large Depths
• Seasonal Variations of the Atmospheric Muon Neutrino Spectrum measured with IceCube
• PhyLiNO: A Forward-Folding Likelihood-Fit Framework for Neutrino Oscillation Physics
• Explanation of the seasonal variation of cosmic multiple muon events observed with the NOvA Near Detector