Pith. sign in

REVIEW 2 cited by

The Search for the Sidereal and Solar Diurnal Modulations in the Total MACRO Muon Data Set

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv astro-ph/0211119 v1 pith:W7AAMSZ6 submitted 2002-11-06 astro-ph

The MACRO Collaboration: M. Ambrosio , et al This is my paper · ORCID
classification astro-ph
keywords solarmodulationdiurnalsiderealmacromodulationsmuoncosmic
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

We have analyzed 44.3M single muons collected by MACRO from 1991 through 2000 in 2,145 live days of operation. We have searched for the solar diurnal, apparent sidereal, and pseudo-sidereal modulation of the underground muon rate by computing hourly deviations of the muon rate from 6 month averages. We find evidence for statistically significant modulations with the solar diurnal and the sidereal periods. The amplitudes of these modulations are <0.1%, and are at the limit of the detector statistics. The pseudo-sidereal modulation is not statistically significant. The solar diurnal modulation is due to the daily atmospheric temperature variations at 20 km, the altitude of primary cosmic ray interactions with the atmosphere; MACRO is the deepest experiment to report this result. The sidereal modulation is in addition to the expected Compton-Getting modulation due to solar system motion relative to the Local Standard of Rest; it represents motion of the solar system with respect to the galactic cosmic rays toward the Perseus spiral arm.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Charge-dependent spectral softenings of primary cosmic-rays below the knee

    astro-ph.HE 2025-11 conditional novelty 7.0 of 10

    Direct measurements reveal charge-dependent spectral softenings in primary cosmic rays at a common rigidity of ~15 TV, rejecting mass-dependent softening at >99.999% confidence.

  2. SPLENDOR: a novel detector platform to search for light dark matter with narrow-gap semiconductors

    physics.ins-det 2025-07 conditional novelty 6.0 of 10

    A dark matter detector platform combining a 60 meV-gap semiconductor (Eu5In2Sb6) with cryogenic HEMT readout and daily modulation analysis is presented, with projected sensitivity to sub-MeV dark matter.

Pith tools