Jeff Hartnell 15 16.03.21.pdf (194.78 kB)
Comparisons of annual modulations in MINOS with the event rate modulation in CoGeNT
journal contribution
posted on 2023-06-09, 23:21 authored by P Adamson, I Anghel, G Barr, M Bishai, A Blake, G J Bock, D Bogert, S V Cao, S Childress, J A B Coelho, L Corwin, D Cronin-Hennessy, N E Devenish, Elisabeth FalkElisabeth Falk, Jeff HartnellJeff Hartnell, MINOS Collaboration, othersThe CoGeNT Collaboration has recently published results from a fifteen month data set which indicate an annual modulation in the event rate similar to what is expected from weakly interacting massive particle interactions. It has been suggested that the CoGeNT modulation may actually be caused by other annually modulating phenomena, specifically the flux of atmospheric muons underground or the radon level in the laboratory. We have compared the phase of the CoGeNT data modulation to that of the concurrent atmospheric muon and radon data collected by the MINOS experiment which occupies an adjacent experimental hall in the Soudan Underground Laboratory. The results presented are obtained by performing a shape-free ?2 data-to-data comparison and from a simultaneous fit of the MINOS and CoGeNT data to phase-shifted sinusoidal functions. Both tests indicate that the phase of the CoGeNT modulation is inconsistent with the phases of the MINOS muon and radon modulations at the 3.0s level. © 2013 American Physical Society.
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Publication status
- Published
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- Accepted version
Journal
Physical Review D - Particles, Fields, Gravitation and CosmologyISSN
1550-7998Publisher
American Physical SocietyExternal DOI
Issue
3Volume
87Article number
a032005Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2021-03-17First Open Access (FOA) Date
2021-03-17First Compliant Deposit (FCD) Date
2021-03-16Usage metrics
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