@article{e88d63f9a34841f09d60a2d954f6a46d,
title = "Observation of seasonal variation of atmospheric multiple-muon events in the NOvA Near Detector",
abstract = "Using two years of data from the NOvA Near Detector at Fermilab, we report a seasonal variation of cosmic ray induced multiple-muon (Nμ≥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.",
author = "{NOvA Collaboration} and Acero, {M. A.} and P. Adamson and L. Aliaga and T. Alion and V. Allakhverdian and S. Altakarli and N. Anfimov and A. Antoshkin and A. Aurisano and A. Back and C. Backhouse and M. Baird and N. Balashov and P. Baldi and Bambah, {B. A.} and S. Bashar and K. Bays and S. Bending and R. Bernstein and V. Bhatnagar and B. Bhuyan and J. Bian and J. Blair and Booth, {A. C.} and P. Bour and C. Bromberg and N. Buchanan and A. Butkevich and S. Calvez and M. Campbell and Carroll, {T. J.} and E. Catano-Mur and A. Cedeno and S. Childress and Choudhary, {B. C.} and B. Chowdhury and Coan, {T. E.} and M. Colo and L. Corwin and L. Cremonesi and Davies, {G. S.} and Derwent, {P. F.} and P. Ding and Z. Djurcic and D. Doyle and Dukes, {E. C.} and H. Duyang and S. Edayath and R. Ehrlich and D. Whittington",
note = "Funding Information: 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. Publisher Copyright: {\textcopyright} 2019 American Physical Society.",
year = "2019",
month = jun,
day = "28",
doi = "10.1103/PhysRevD.99.122004",
language = "English (US)",
volume = "99",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "12",
}