2004/10/22 by J. J. Beatty, S. Coutu, S. A. Minnick +21 · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #astro-ph
paper · pdf · doi:10.1103/physrevd.70.092005
published as Phys.Rev. D70 (2004) 092005 · To appear in Physical Review D
arxiv created 2004/10/22 · openalex publication_date 2004/11/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a new measurement of atmospheric muons made during an ascent of the High Energy Antimatter Telescope balloon experiment. The muon charge ratio \ensuremathμ+/\ensuremathμ^\ensuremath- as a function of atmospheric depth in the momentum interval 0.3--0.9 GeV/c is presented. The differential \ensuremathμ^\ensuremath- intensities in the 0.3--50 GeV/c range and for atmospheric depths between 4--960 g/cm2 are also presented. We compare these results with other measurements and model predictions. We find that our charge ratio is \ensuremath∼1.1 for all atmospheric depths and is consistent, within errors, with other measurements and the model predictions. We find that our measured \ensuremathμ^\ensuremath- intensities are also consistent with other measurements, and with the model predictions, except at shallow atmospheric depths.