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Title: Search for Ultra-relativistic Magnetic Monopoles with the Pierre Auger Observatory

Journal Article · · Physical Review D
 [1]
  1. Univ. of Siegen (Germany). et al.

In this paper, we present a search for ultra-relativistic magnetic monopoles with the Pierre Auger Observatory. Such particles, possibly a relic of phase transitions in the early universe, would deposit a large amount of energy along their path through the atmosphere, comparable to that of ultrahigh-energy cosmic rays (UHECRs). The air shower profile of a magnetic monopole can be effectively distinguished by the fluorescence detector from that of standard UHECRs. No candidate was found in the data collected between 2004 and 2012, with an expected background of less than 0.1 event from UHECRs. The corresponding 90% confidence level (C.L.) upper limits on the flux of ultra-relativistic magnetic monopoles range from $$10^{-19}$$ (cm$$^{2}$$ sr s)$$^{-1}$$ for a Lorentz factor $$\gamma=10^9$$ to $$2.5 \times10^{-21}$$ (cm$$^{2}$$ sr s)$$^{-1}$$ for $$\gamma=10^{12}$$. Lastly, these results - the first obtained with a UHECR detector - improve previously published limits by up to an order of magnitude.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
Pierre Auger Collaboration
Grant/Contract Number:
AC02-07CH11359; FR02-04ER41300; FG02-99ER41107; SC0011689
OSTI ID:
1327017
Alternate ID(s):
OSTI ID: 1328466
Report Number(s):
FERMILAB-PUB-16-373-AD-AE-CD-TD; arXiv:1609.04451; 1486632
Journal Information:
Physical Review D, Vol. 94; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

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Cited By (2)

Searches for cosmic magnetic monopoles: past, present and future
  • Patrizii, Laura; Sahnoun, Zouleikha; Togo, Vincent
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 377, Issue 2161 https://doi.org/10.1098/rsta.2018.0328
journal November 2019
Physical implications of electroweak monopole journal November 2019


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