2008/05/15 by Yen-Chu Chen, Chen, Yen-Chu
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #hep-ex
paper · pdf · doi:10.48550/arxiv.0805.2350
contribution to proceeding of Moriond EW 2008 conference, 7 pages
arxiv created 2008/05/15 · openalex publication_date 2008/05/15 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The top quark was discovered in 1995. The top quark mass is now well measured at the Tevatron, with uncertainty getting below 1% of the top mass. The world average from last year was 170.9 ± 1.8 GeV/c2. The new CDF measurement is 172 ± 1.2 (stat) ± 1.5 (sys) GeV/c2, and D0 will soon present a new measurement. The top quark mass is an important parameter in the Standard Model, and should be measured as precisely as possible. To learn more about the top quark observed and study possible new physics, other properties also should be measured. At the Tevatron, the charge of the top quark can be measured directly. Examples of other properties studied and reported in this presentation are W helicity, top decay branching ratio to b (Rb), searches for t → H b and for flavor changing neutral current (FCNC). The results are all consistent with the Standard Model within current statistics. With significantly more data being collected at the Tevatron, precision measurements of the top properties are just starting.