Volume 87, Number 3, August 2009
|Number of page(s)||4|
|Section||Geophysics, Astronomy and Astrophysics|
|Published online||04 August 2009|
Time variations in the deep underground muon flux
IASF/INAF, Sezione di Bologna - I-40129 Bologna, Italy, EU
2 INFN, Sezione di Bologna - I-40127 Bologna, Italy, EU
3 Dipartimento di Fisica dell'Università di Bologna - I-40127 Bologna, Italy, EU
4 LPTP, Faculty of Sciences, University Mohamed I - B.P. 424, Oujda, Morocco
Corresponding author: Stefano.Cecchini@bo.infn.it
Accepted: 23 July 2009
More than 35 million high-energy muons collected with the MACRO detector at the underground Gran Sasso Laboratory have been used to search for flux variations of different nature. Two kinds of studies were carried out: a search for the occurrence of clusters of events and a search for periodic variations. Different analysis methods, including the Scan Statistics test and the Lomb-Scargle spectral analysis have been applied to the data.
PACS: 95.55.Vj – Neutrino, muon, pion, and other elementary particle detectors; cosmic ray detectors / 95.85.Ry – Neutrino, muon, pion, and other elementary particles; cosmic rays / 25.75.Gz – Particle correlations and fluctuations
© EPLA, 2009
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