Evidence of a Quark in a High-Energy Cosmic-Ray Bubble-Chamber Picture
Abstract
We have found a bubble-chamber picture which shows three contemporaneous high-energy cosmic-ray tracks. One of the tracks has ionization which is that expected of a charge-23 particle if the mass of this particle is less than 6.5 GeV. The observed ionization is also consistent with that which is expected of a charge-13 particle with a mass of 8.0+/-3.0 GeV.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 1970
- DOI:
- 10.1103/PhysRevLett.24.917
- Bibcode:
- 1970PhRvL..24..917C