Measurement of cosmic-ray muon spectrum and charge ratio at large zenith angles in the momentum range 100 GeV/c to 10 TeV/c using a magnet spectrograph

Journal Article · Mon Sep 24 00:00:00 EDT 1979 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.43.974· OSTI ID:5874614

Muraki, Y; Ohashi, Y; Kitamura, T; Mitsui, K; Miyake, S; Okada, A; Murthy, P V.R.; Honda, K; Kawashima, Y; Takahashi, T; Teramoto, Y; Higashi, S; Ozaki, S; Nakamura, I; Kamiya, Y; Iida, S; Kobayakawa, K; Shibata, H; Minorikawa, Y; Mikamo, S

The cosmic-ray muon momentum spectrum and charge ratio up to momenta approx. = 10 TeV/c have been measured with high accuracy. The power index of the differential spectrum of parent mesons at production gradually increases with momentum and becomes 2.87 +- 0.06 in the momentum range 1 to 10 TeV/c. The charge ratio is almost constant at a value of 1.25 +- 0.05 from 0.1 to 10 TeV/c.

• Research Organization: Institute for Cosmic Rays, University of Tokyo, Tanashi, Tokyo 188, Japan
• OSTI ID: 5874614
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 43:13
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC MUONS
LINEAR MOMENTUM
MINUS-PLUS RATIO
GEV RANGE 100-1000
TEV RANGE 01-10
COSMIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
IONIZING RADIATIONS
LEPTONS
MUONS
RADIATIONS
TEV RANGE
640101* - Astrophysics & Cosmology- Cosmic Radiation