Observation of single top at CDF

Conference · Thu Jan 01 00:00:00 EST 2009 · PoS EPS-HEP2009:355,2009

OSTI ID:991779

Casal, Bruno

We present observation of electroweak single top quark production using 3.2 fb{sup -1} of data collected by the CDF experiment. Candidate events are selected for further classification by five parallel analysis techniques: one using a likelihood discriminant, one using a matrix-element discriminant, one using decision trees, one using a neural network, and one using a complementary dataset. The results of these analyses are combined in order to improve the expected sensitivity. The significance of the observed data is 5.0 standard deviations, and the expected sensitivity is in excess of 5.9 standard deviations. We also present the most current value of the CKM matrix element |V{sub tb}|.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 991779
• Report Number(s): FERMILAB-CONF-09-748; TRN: US1007566
• Journal Information: PoS EPS-HEP2009:355,2009, Conference: Prepared for 2009 Europhysics Conference on High Energy Physics: HEP 2009 (EPS-HEP 2009), Cracow, Poland, 16-22 Jul 2009
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CLASSIFICATION
FERMILAB COLLIDER DETECTOR
HIGH ENERGY PHYSICS
MATRIX ELEMENTS
NEURAL NETWORKS
PRODUCTION
SENSITIVITY
T QUARKS
Experiment-HEP