The production and event topology of three-jet events produced in ppBAR collisions at square-root s = 1.8 TeV have been studied with the Collider Detector at Fermilab at the Tevatron Collider. The distributions of the three-jet angular variables (psi* and cos-theta*) and of the variables describing the energy sharing between jets (x3 and x4) are found to agree well with tree-level QCD calculations. These distributions are predicted to have different shapes for different initial-state subprocesses (quark-antiquark, quark-gluon, and gluon-gluon). The data are consistent with the small expected contribution from quark-antiquark initial states, in agreement with theoretical expectations.
TOPOLOGY OF 3-JET EVENTS IN PBARP COLLISIONS AT SQUARE-ROOT-S=1.8 TEV
DELL'ORSO, MAURO;PUNZI, GIOVANNI;
1992-01-01
Abstract
The production and event topology of three-jet events produced in ppBAR collisions at square-root s = 1.8 TeV have been studied with the Collider Detector at Fermilab at the Tevatron Collider. The distributions of the three-jet angular variables (psi* and cos-theta*) and of the variables describing the energy sharing between jets (x3 and x4) are found to agree well with tree-level QCD calculations. These distributions are predicted to have different shapes for different initial-state subprocesses (quark-antiquark, quark-gluon, and gluon-gluon). The data are consistent with the small expected contribution from quark-antiquark initial states, in agreement with theoretical expectations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
