Journal
PHYSICAL REVIEW C
Volume 81, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.81.025807
Keywords
-
Categories
Funding
- Japanese Ministry of Education, Culture, Sports, Science and Technology [09CE2003]
- US Department of Energy (DOE) [DEFG03-00ER41138, DE-AC02-05CH11231]
- Grants-in-Aid for Scientific Research [10J01860, 09CE2003, 11J03068, 21244025] Funding Source: KAKEN
- Direct For Education and Human Resources
- Division Of Human Resource Development [0833184] Funding Source: National Science Foundation
Ask authors/readers for more resources
Radioactive isotopes produced through cosmic muon spallation are a background for rare-event detection in. 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 C-11. 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 Y-n = (2.8 +/- 0.3) x 10(-4) mu(-1) g(-1) cm(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.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available