The ground-level hadron cosmic-ray spectrum between 30 and 1000 GeV
Abstract
An experimental investigation of cosmic-ray hadrons at an atmospheric depth of 990 g/sq cm is reported. Both energy and velocity of incident hadrons are studied with a view to assess hadron masses, apparently a unique feature among ground-level experiments. The experimental apparatus uses a shallow calorimeter to determine incident energy and a large atmospheric-pressure Cerenkov counter to provide velocity information. The results include the measurement of the charged-hadron energy spectrum, the upper limit on the pi/p ratio, and the upper limit on the flux of massive particles.
- Publication:
-
Nuovo Cimento Lettere
- Pub Date:
- July 1979
- Bibcode:
- 1979NCimL..25..289F
- Keywords:
-
- Cerenkov Counters;
- Cosmic Rays;
- Energy Spectra;
- Hadrons;
- Atmospheric Pressure;
- Calorimeters;
- Charged Particles;
- Heat Measurement;
- Particle Flux Density;
- Space Radiation