Barometric Effect of High-Energy Muons (> 230 GeV)

TL;DR

This study analyzes ten years of data from the Baksan telescope to measure the barometric effect on high-energy muons, revealing coefficients much higher than theoretical predictions but consistent with other experimental findings.

Contribution

It provides long-term measurements of barometric coefficients for high-energy muons and compares them with theoretical and previous experimental results.

Findings

Barometric coefficients are over an order of magnitude higher than theoretical values.

Measured coefficients increase with higher muon energy thresholds.

Results align with other experimental data despite theoretical discrepancies.

Abstract

According to the Baksan underground scintillation telescope data the barometric coefficients for six intervals of zenith angles of particle registration were obtained for ten years (2003-2012). The obtained barometric coefficients exceed an order of magnitude the theoretical values. Nevertheless, these results are in good agreement with the data obtained for the barometric effect of high-energy muons in a number papers of other authors. And there is a noticeable increase of the absolute values of the measured barometric coefficients with increase of the threshold energy of muons.