The kinematic properties of t(t)over-bar 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 t (t) over bar production an compared with those expected from Monte Carlo calculations. A sample of 34 events rich in t(t)over-bar 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 t(t)over-bar matrix element with color coherent parton shower evolution. [S0556-2821(99)04007-2]. RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Nomerotski, Andrei/A-5169-2010; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
Kinematics of t(t)over-bar events at CDF
PIACENTINO, Giovanni Maria;
1999-01-01
Abstract
The kinematic properties of t(t)over-bar 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 t (t) over bar production an compared with those expected from Monte Carlo calculations. A sample of 34 events rich in t(t)over-bar 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 t(t)over-bar matrix element with color coherent parton shower evolution. [S0556-2821(99)04007-2]. RI Lancaster, Mark/C-1693-2008; Vucinic, Dejan/C-2406-2008; Nomerotski, Andrei/A-5169-2010; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
