What question did this study set out to answer?

To investigate sources of underground muons and identify any excesses above background levels.

March 5, 2026Open Access

Search for Steady, Modulated and Variable Cosmic Ray Sources Using Undrground Muons in MACRO

Puntos clave

To investigate sources of underground muons and identify any excesses above background levels.
Analyzed a sample of 38.5 million underground muons from the MACRO detector.
Conducted an all-sky search for pointlike sources of excess muons.
Assessed muon flux upper limits from selected sources.
Identified upper limit of d.c. muon flux from sources at around 10^{-13} cm^{-2} s^{-1}.
Discussed potential modulated and variable sources using various techniques.

Resumen

Using a sample of 38. 5 million underground muons collected by the MACRO detector we have performed an all-sky search for pointlike sources producing excesses of muons above the expected background. The d. c. muon flux upper limit at the Earth coming from selected sources is of the order of 10^-13 cm^-2 s^-1 or less. Futhermore we discuss searches for possible modulated and variable sources of muons using different techniques.

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Cite This Study

Collaboration Macro (Fri,) studied this question.

synapsesocial.com/papers/69a91e1fd6127c7a504c1c15 https://doi.org/https://doi.org/10.15161/oar.it/384ep-m4d97

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