Observation of Missing Energy Associated with μ+μ- Produced in p-Fe Interactions
Abstract
In a study of interactions of 400-GeV protons in an iron calorimeter, we have observed μ+μ- pairs associated with a significant amount of missing energy indicative of final-state neutrinos. This missing energy is not due to any instrumental effects, nor to any trivial sources like double KK¯ (or ππ) decay. Interpretation of these data as production of a DD¯ pair followed by a double muonic decay leads to a model-dependent estimate of a total production cross section of the order of 7-20 μb.
- Publication:
-
Physical Review Letters
- Pub Date:
- December 1979
- DOI:
- 10.1103/PhysRevLett.43.1774
- Bibcode:
- 1979PhRvL..43.1774D