Top Prospects for Run II at CDF

2001 ◽  
Vol 16 (supp01a) ◽  
pp. 392-394
Author(s):  
◽  
Phillip Koehn
Keyword(s):  
Top Quark ◽  
Top Physics ◽  
Top Quarks

Selected CDF top quark physics results in Run I and expectations for the upcoming Tevatron run beginning 2001 (Run II) are summarized. Running at [Formula: see text] and higher luminosity, the number of top quarks produced will be greatly increased in Run II. The upgraded CDF detector will significantly increase the acceptance for top events. These factors will substantially increase top yield that will not only improve the precision of current top production and decay measurements, but will provide exciting opportunities for new top physics studies.

scholarly journals ZH production in gluon fusion: two-loop amplitudes with full top quark mass dependence

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Long Chen ◽  
Gudrun Heinrich ◽  
Stephen P. Jones ◽  
Matthias Kerner ◽  
Jonas Klappert ◽  
...  
Keyword(s):  
Top Quark ◽  
Quark Mass ◽  
Gluon Fusion ◽  
Top Quarks ◽  
Mass Dependence ◽  
Finite Part ◽  
Top Quark Mass ◽  
Helicity Amplitudes ◽  
Quark Mass Dependence ◽  
Loop Amplitudes

Abstract We present results for the two-loop helicity amplitudes entering the NLO QCD corrections to the production of a Higgs boson in association with a Z -boson in gluon fusion. The two-loop integrals, involving massive top quarks, are calculated numerically. Results for the interference of the finite part of the two-loop amplitudes with the Born amplitude are shown as a function of the two kinematic invariants on which the amplitudes depend.

scholarly journals Top physics at the LHC

2015 ◽  
Vol 30 (35) ◽  
pp. 1530063 ◽  
Author(s):  
Vittorio Del Duca ◽  
Eric Laenen
Keyword(s):  
Top Quark ◽  
Charge Asymmetry ◽  
Top Physics ◽  
Present Situation ◽  
Top Quark Mass ◽  
Single Top ◽  
Key Concepts ◽  
Theoretical Predictions ◽  
Top Quark Decay ◽  
Quark Decay

We review the present situation in top quark physics, in these early days of Run II of the LHC. We take mostly a Standard Model perspective, showing recent results, and review the key concepts and results of the associated theoretical predictions. The issues we discuss are the top quark mass, top quark pair and single top production, production in association with other particles, charge asymmetry and top quark decay.

scholarly journals Review of recent measurements in the top quark sector at the Tevatron

2014 ◽  
Vol 29 (18) ◽  
pp. 1430014 ◽  
Author(s):  
Andreas W. Jung
Keyword(s):  
Cross Sections ◽  
Top Quark ◽  
Top Quarks ◽  
Current Status ◽  
Angular Distributions ◽  
Data Sets ◽  
Full Data ◽  
Quark Sector ◽  
Top Quark Production ◽  
Quark Production

Recent measurements in the top quark sector at the Fermilab Tevatron collider are discussed. Measurements at the Tevatron use up to 9.7 fb-1 of data corresponding to the full data sets recorded by each of the experiments, CDF and DØ. This review discusses the most recent measurements of inclusive and differential top quark cross-sections in strong and electroweak production of top quarks and related measurements, as well as measurements of angular distributions related to asymmetries in top quark production. Furthermore, the current status of precision measurements of the mass of the top quark is discussed. Where available, combinations of CDF and DØ results are presented.

scholarly journals REVIEW OF PROPERTIES OF THE TOP QUARK FROM MEASUREMENTS AT THE TEVATRON

2009 ◽  
Vol 24 (16n17) ◽  
pp. 2899-3037 ◽  
Author(s):  
MARC-ANDRÉ PLEIER
Keyword(s):  
Top Quark ◽  
Particle Physics ◽  
Quark Mass ◽  
Center Of Mass ◽  
Top Quarks ◽  
Mass Energy ◽  
Fundamental Particle ◽  
Proton Antiproton ◽  
Center Of Mass Energy ◽  
Elementary Particle Physics

This review summarizes the program in the physics of the top quark being pursued at Fermilab's Tevatron proton–antiproton collider at a center-of-mass energy of 1.96 TeV. More than a decade after the discovery of the top quark at the two collider detectors CDF and D0, the Tevatron has been the only accelerator to produce top quarks and to study them directly.The Tevatron's increased luminosity and center-of-mass energy offer the possibility to scrutinize the properties of this heaviest fundamental particle through new measurements that were not feasible before, such as the first evidence for electroweak production of top quarks and the resulting direct constraints on the involved couplings. Better measurements of top quark properties provide more stringent tests of predictions from the SM of elementary particle physics. In particular, the improvement in measurements of the mass of the top quark, with the latest uncertainty of 0.7% marking the most precisely measured quark mass to date, further constrains the prediction of the mass of the still to be discovered Higgs boson.

A VIEW OF THE TOP.

1998 ◽  
Vol 13 (17) ◽  
pp. 2883-2930 ◽  
Author(s):  
GIORGIO CHIARELLI
Keyword(s):  
Cross Section ◽  
Top Quark ◽  
Production Cross Section ◽  
Production Cross ◽  
Top Physics ◽  
Precision Measurements ◽  
Selection Strategies ◽  
Text Production ◽  
Top Mass

In this review I summarize the results obtained by CDF on top physics. After the discovery of the top quark, the efforts were concentrated on obtaining precision measurements of the observables. A description of the algorithms developed and used to isolate top in various samples is given, together with the discussion of background and selection strategies followed. The measurements of top mass and [Formula: see text] production cross section are discussed in detail and studies related to top decays and kinematics of [Formula: see text] events are presented.

scholarly journals TOP QUARK PHYSICS AT THE TEVATRON

2013 ◽  
Vol 28 (08) ◽  
pp. 1330013 ◽  
Author(s):  
FRÉDÉRIC DÉLIOT ◽  
YVONNE PETERS ◽  
VERONICA SORIN
Keyword(s):  
Top Quark ◽  
Top Quarks ◽  
New Physics ◽  
Beyond The Standard Model ◽  
Proton Antiproton ◽  
New Methods ◽  
Decay Properties ◽  
Large Program ◽  
The Standard Model ◽  
New Phenomena

The heaviest known elementary particle, the top quark, was discovered in 1995 by the CDF and D0 collaborations at the Tevatron proton–antiproton collider at Fermilab. Since its discovery, a large program was set in motion by the CDF and D0 collaborations to characterize the production and decay properties of top quarks, and investigate their potential for searches of new phenomena beyond the standard model. During the past 20 years, new methods were developed and implemented to improve the measurements and searches for new physics in the top quark sector. This paper reviews the achievements and results obtained through studies of the top quark at the Tevatron.

scholarly journals TOP QUARK LONGITUDINAL POLARIZATION NEAR THE THRESHOLD IN ℓ+ℓ- ANNIHILATION

1998 ◽  
Vol 13 (12) ◽  
pp. 973-978 ◽  
Author(s):  
B. M. CHIBISOV ◽  
M. B. VOLOSHIN
Keyword(s):  
Total Cross Section ◽  
Cross Section ◽  
Top Quark ◽  
Top Quarks ◽  
Longitudinal Polarization ◽  
Independent Information ◽  
Coulomb Type

We show that the longitudinal polarization of the top quarks produced in the annihilation of e+e- or μ+μ- into [Formula: see text] at energies near the threshold is not affected by the large Coulomb-type corrections, which modify the total cross-section significantly. Thus the longitudinal polarization, though small, may give an independent information on the mass and the width of the top quark, largely independent of the uncertainty in αs.

THE "TOP PRIORITY" AT THE LHC

2008 ◽  
Vol 23 (25) ◽  
pp. 4107-4124 ◽  
Author(s):  
TAO HAN
Keyword(s):  
Elementary Particle ◽  
Top Quark ◽  
Hadron Collider ◽  
Top Quarks ◽  
New Physics ◽  
Great Accuracy ◽  
Electroweak Symmetry Breaking ◽  
Electroweak Symmetry ◽  
High Luminosity ◽  
The Standard Model

The LHC (Large Hadron Collider) will be a top-quark factory. With 80 million pairs of top quarks and an additional 34 million single tops produced annually at the designed high luminosity, the properties of this particle will be studied to a great accuracy. The fact that the top quark is the heaviest elementary particle in the Standard Model with a mass right at the electroweak scale makes it tempting to contemplate its role in electroweak symmetry breaking, as well as its potential as a window to unknown new physics at the TeV scale. We summarize the expectations for top-quark physics at the LHC, and outline new physics scenarios in which the top quark is crucially involved.

SIGNATURES AND MASS DETERMINATION OF HEAVY TOP QUARKS AT THE SSC

1987 ◽  
Vol 02 (04) ◽  
pp. 1255-1261 ◽  
Author(s):  
H.-U. Bengtsson ◽  
E.W.N. Glover
Keyword(s):  
Top Quark ◽  
Charged Lepton ◽  
Quark Mass ◽  
Simple Technique ◽  
Top Quarks ◽  
Mass Determination ◽  
200 Gev ◽  
O 10

A simple technique for selecting top quark events and reconstructing the quark mass is given for 100<Mt<200 GeV . Using a charged lepton with large pT to trigger the event, simple attempts to reconstruct the quark mass from jets indicate that the quark mass may be measured to O(10%).

scholarly journals Photon radiation effects in kinematic reconstruction of top quarks

2021 ◽  
Vol 16 (12) ◽  
pp. P12001
Author(s):  
D. Dobur ◽  
J. Knolle ◽  
G. Mestdach ◽  
K. Skovpen
Keyword(s):  
Pair Production ◽  
Top Quark ◽  
Radiation Effects ◽  
Top Quarks ◽  
Photon Radiation ◽  
Systematic Effects ◽  
Background Events

Abstract Kinematic reconstruction of top quarks allows to define a set of kinematic observables relevant to various physics processes that involve top quarks and provides an additional handle for the suppression of background events. Radiation of photons in association with the top quarks alters the kinematics and the topology of the event, leading to visible systematic effects in measurable observables. The present study introduces an improved reconstruction of the top quark kinematics in the presence of photon radiation. The results are presented for processes with top quark pair production, as well as for singly-produced top quarks.

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