I will briefly review the physics of top quark at high energy colliders. A new discovery of single-top event at the Fermilab Tevatron is expected. At the CERN Large Hadron Collider, detailed top quark properties can be measured and new physics ideas in which top quark plays a special role can be tested. I will also discuss a few phenomenological methods for analyzing experimental data to study ...

The production of top-quark pairs in hadronic collisions is among the most important reactions modern particle physics phenomenology and constitutes an instrumental avenue to study properties heaviest quark observed nature. analysis this process at Large Hadron Collider relies heavily on Monte Carlo simulations final state events, whose accuracy challenged by outstanding precision experimental ...

A new evaluation method is presented that employs cut sequence set (CSS) to analyze fault trees. A cut sequence is a set of basic events that fail in a specific order that can induce top event. CSS is the aggregate of all the cut sequences in a fault tree. The paper continues its former researches on CSS and uses CSS, composed of sequential failure expressions (SFE), to represent the occurrence...

A study of the use of fractals in top non-leptonic decays for the sake of discrimination against background is presented. Preliminary results show that fractals may provide a useful check for top event enrichment techniques.

We present three recent analyses (Abstracts 169, 170 and 174) of the mass of the top quark (Mt) using top-antitop candidate events collected by the D0 experiment at the Fermilab Tevatron Collider: (i) a 3.6 events/fb sample of data in the lepton+jets channel analyzed to extract a precision value of Mt using the "Matrix-Element" (ME) method, wherein each event probability is calculated from the ...

We study the effects of QCD corrections to the process ee → tt̄ + X → blνb̄lν̄ + X above threshold. We show how to treat consistently to O(αs) the gluon radiation in both the production and the decay of the top quarks, while maintaining all angular correlations in the event. At this order there is an ambiguity in the event reconstruction whenever a real gluon occurs in the final state. We study th...

This paper describes a methodology to use Human Error Probabilities (HEP) and design to create robust complex Systems. If a Human Reliability Assessment (HRA) is performed, than this is done mostly after the detailed design phase is finished. The presented method helps to understand the influence of Human Error (HE) in an earlier design phase, e.g. at the functional analysis level. The method c...

The techniques used to study top quarks at hadron colliders are presented. The analyses that discovered the top quark are described, with emphasis on the techniques used to tag b quark jets in candidate events. The most recent measurements of top quark properties by the CDF and D0 / collaborations are reviewed, including the top quark cross section, mass, branching fractions and production prop...

We summarize recent measurements made at the Tevatron Collider using top event candidates. Cross section and mass measurements are discussed in a separate contribution to these Proceedings. Here we report on studies of the top P T distribution in tt production and studies of single top production. Properties of top decays examined are: BF(t ! Wb)/BF(t ! Wq), helicity amplitudes of W's from top ...