Abstract
We report the analysis of the spatial energy distribution of data for obtained with the MARK-J detector at PETRA. We define the quantity "oblateness" to describe the flat shape of the energy configuration and the three-jet structure which is unambiguously observed for the first time. Our data can be explained by quantum chromodynamic predictions for the production of quark-antiquark pairs accompanied by hard noncollinear gluons.
- Received 31 August 1979
DOI:https://doi.org/10.1103/PhysRevLett.43.830
©1979 American Physical Society