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Observation of seasonal variation of atmospheric multiple-muon events in the NOvA Near Detector

Acero, M. A. and Bays, K. and Lozier, J. and Mualem, L. and Patterson, R. B. and Raj, V. (2019) Observation of seasonal variation of atmospheric multiple-muon events in the NOvA Near Detector. Physical Review D, 99 (12). Art. No. 122004. ISSN 2470-0010. https://resolver.caltech.edu/CaltechAUTHORS:20190628-095920053

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Abstract

Using two years of data from the NOvA Near Detector at Fermilab, we report a seasonal variation of cosmic ray induced multiple-muon (N_μ ≥ 2) event rates which has an opposite phase to the seasonal variation in the atmospheric temperature. The strength of the seasonal multiple-muon variation is shown to increase as a function of the muon multiplicity. However, no significant dependence of the strength of the seasonal variation of the multiple-muon variation is seen as a function of the muon zenith angle, or the spatial or angular separation between the correlated muons.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevD.99.122004DOIArticle
https://arxiv.org/abs/1904.12975arXivDiscussion Paper
ORCID:
AuthorORCID
Patterson, R. B.0000-0002-5787-9517
Additional Information:© 2019 American Physical Society. Received 29 April 2019; published 28 June 2019. This document was prepared by the NOvA collaboration using the resources of the Fermi National Accelerator Laboratory (Fermilab), a U.S. Department of Energy, Office of Science, HEP User Facility. Fermilab is managed by Fermi Research Alliance, LLC (FRA), acting under Contract No. DE-AC02-07CH11359. This work was supported by the U.S. Department of Energy; the U.S. National Science Foundation; the Department of Science and Technology, India; the European Research Council; the MSMT CR, GA UK, Czech Republic; the RAS, RFBR, Russian Ministry of Education and Science, RSF, and BASIS Foundation, Russia; CNPq and FAPEG, Brazil; STFC, and the Royal Society, United Kingdom; and the state and University of Minnesota. We are grateful for the contributions of the staffs of the University of Minnesota at the Ash River Laboratory and of Fermilab.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-07CH11359
NSFUNSPECIFIED
Department of Science and Technology (India)UNSPECIFIED
European Research Council (ERC)UNSPECIFIED
Ministerstvo Školství, Mládeže a Tělovýchovy (Czech Republic)UNSPECIFIED
Charles UniversityUNSPECIFIED
Russian Academy of SciencesUNSPECIFIED
Russian Foundation for Basic ResearchUNSPECIFIED
Ministry of Education and Science of the Russian Federation UNSPECIFIED
Russian Science FoundationUNSPECIFIED
BASIS Foundation (Russia)UNSPECIFIED
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNSPECIFIED
Fundação de Amparo à Pesquisa do Estado de Goiás (FAPEFG)UNSPECIFIED
Science and Technology Facilities Council (STFC)UNSPECIFIED
Royal SocietyUNSPECIFIED
State of MinnesotaUNSPECIFIED
University of MinnesotaUNSPECIFIED
Issue or Number:12
Record Number:CaltechAUTHORS:20190628-095920053
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190628-095920053
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96818
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:28 Jun 2019 17:09
Last Modified:03 Oct 2019 21:25

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