The kinematic properties of tt¯ events are studied in the W+multijet channel using data collected with the CDF detector during the 1992–1995 runs at the Fermilab Tevatron collider corresponding to an integrated luminosity of 109 pb−1. Distributions of a variety of kinematic variables chosen to be sensitive to different aspects of tt¯ production are compared with those expected from Monte Carlo calculations. A sample of 34 events rich in tt¯ pairs is obtained by requiring at least one jet identified by the silicon vertex detector (SVX) as having a displaced vertex consistent with the decay of a b hadron. The data are found to be in good agreement with predictions of the leading order tt¯ matrix element with color coherent parton shower evolution.
Kinematics of t(t)over-bar events at CDF
Cauz, D.;Cobal, M.;Grassmann, H.;Pauletta, G.;Santi, L.;
1999-01-01
Abstract
The kinematic properties of tt¯ events are studied in the W+multijet channel using data collected with the CDF detector during the 1992–1995 runs at the Fermilab Tevatron collider corresponding to an integrated luminosity of 109 pb−1. Distributions of a variety of kinematic variables chosen to be sensitive to different aspects of tt¯ production are compared with those expected from Monte Carlo calculations. A sample of 34 events rich in tt¯ pairs is obtained by requiring at least one jet identified by the silicon vertex detector (SVX) as having a displaced vertex consistent with the decay of a b hadron. The data are found to be in good agreement with predictions of the leading order tt¯ matrix element with color coherent parton shower evolution.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.