Production of Radioactive Isotopes through Cosmic Muon Spallation in KamLAND

Abstract

Radioactive isotopes produced through cosmic muon spallation are a background for rare-event detection in $\nu$ detectors, double-$\beta$-decay experiments, and dark-matter searches. Understanding the nature of cosmogenic backgrounds is particularly important for future experiments aiming to determine the pep and CNO solar neutrino fluxes, for which the background is dominated by the spallation production of ${}^{11}$C. Data from the Kamioka liquid-scintillator antineutrino detector (KamLAND) provides valuable information for better understanding these backgrounds, especially in liquid scintillators, and for checking estimates from current simulations based upon MUSIC, FLUKA, and GEANT4. Using the time correlation between detected muons and neutron captures, the neutron production yield in the KamLAND liquid scintillator is measured to be $(2.8\pm 0.3)\times 10^{-4}{\mu }^{-1}{g}^{-1}c{m}^2$. For other isotopes, the production yield is determined from the observed time correlation related to known isotope lifetimes. We find some yields are inconsistent with extrapolations based on an accelerator muon beam experiment.

16 pages, 20 figures

References in corpus (9)

• Precision Measurement of Neutrino Oscillation Parameters with KamLAND
• Calculation of atmospheric neutrino flux using the interaction model calibrated with atmospheric muon data
• New results on solar neutrino fluxes from 192 days of Borexino data
• First real time detection of Be7 solar neutrinos by Borexino
• Muon Simulations for Super-Kamiokande, KamLAND and CHOOZ
• CNO and pep neutrino spectroscopy in Borexino: Measurement of the deep underground production of cosmogenic 11C in organic liquid scintillator
• The KamLAND Full-Volume Calibration System
• Validation of spallation neutron production and propagation within Geant4
• A C-13(alpha,n)O-16 calibration source for KamLAND

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