Status and prospects of top-quark physics

Incandela, J.; Quadt, A.; Wagner, W.; Wicke, D.

doi:10.1016/j.ppnp.2009.08.001

Cited by 36 publications

(19 citation statements)

References 330 publications

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“…In hadron colliders, top-quark production is dominated by the production of tt pairs [1]. At the Tevatron, where the top quark was discovered in 1995 [2,3], tt pairs are predominantly produced through quark-antiquark annihilation.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the $\mathrm{{t\bar{t}}}$ production cross section in pp collisions at $\sqrt{s}=7$ TeV using the kinematic properties of events with leptons and jets

Chatrchyan¹,

Sill²,

Besançon³

et al. 2011

Eur. Phys. J. C

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A measurement of the tt production cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV has been performed at the LHC with the CMS detector. The analysis uses a data sample corresponding to an integrated luminosity of 36 pb −1 and is based on the reconstruction of the final state with one isolated, high transversemomentum electron or muon and three or more hadronic jets. The kinematic properties of the events are used to separate the tt signal from W+jets and QCD multijet background events. The measured cross section is 173 +39 −32 (stat.+ syst.) pb, consistent with standard model expectations.

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Section: Introductionmentioning

confidence: 99%

Measurement of the $\mathrm{{t\bar{t}}}$ production cross section in pp collisions at $\sqrt{s}=7$ TeV using the kinematic properties of events with leptons and jets

Chatrchyan¹,

Sill²,

Besançon³

et al. 2011

Eur. Phys. J. C

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“…As a result of applying these techniques to more than 3 f b −1 of data, both collaborations managed to measure the tt cross section with total uncertainty of about 10% [8]. This is below the theoretical uncertainty.…”

Section: Top Productionmentioning

confidence: 99%

Top Physics at the Tevatron

Arov¹

2010

Proceedings of 12th International Conference on B-Physics at Hadron Machines — PoS(BEAUTY 2009)

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This paper presents the latest developments in top physics by the D0 and CDF collaborations at the Tevatron Collider in Fermilab using about 3 f b −1 of data. The most important one was observation of the electroweak production of single top quarks. Top quark pair production and top mass measurements were also vastly improved. Finally we present searches for new physics beyond the Standard Model, specifically for Charged Higgs bosons and resonant mode top top pair production.

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“…The production of single top quarks via electroweak interactions will then be topic of section 2.2.2. Detailed reviews on top-quark physics in hadron collisions can be found in references [37][38][39][40].…”

Section: Top Quarksmentioning

confidence: 99%

Measurement of the electroweak top quark production cross section and the CKM matrix element Vtb with the D0 experiment

Kirsch

2009

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Diese Dissertation ist auf den Internetseiten der Hochschulbibliothek online verfügbar. ZusammenfassungIn der vorliegenden Analyse wird in einem etwa 1 fb −1 an integrierter Luminosität umfassenden Datensatz des DØ-Experiments nach der Produktion einzelner Top-Quarks mittels elektroschwacher Wechselwirkung gesucht. Die Ereignisse wurden am Tevatron-Beschleuniger des Fermi National Accelerator Laboratory, angesiedelt in Batavia, IL, USA, in ProtonAntiproton-Kollisionen bei einer Schwerpunktsenergie von √ s = 1.96 TeV aufgezeichnet. Die Analyse konzentriert sich dabei auf die Messung des kombinierten Wirkunsquerschnitts des s-(tb) und des t-Kanal-(tqb) Produktionsmechanismus:pp → tb + X, tqb + X.Betrachtet werden hierbei Endzustände in denen das W Boson, welches beim Zerfall des Top-Quarks entsteht, im Weiteren in ein Elektron oder ein Myon sowie ein entsprechendes Neutrino zerfällt. Dieser Wirkungsquerschnitt ist direkt proportional zum Quadrat des CKMMatrixelements |V tb | und erlaubt somit dessen Messung ohne zusätzliche Annahmenüber die Unitarität der CKM-Matrix oder die Anzahl der Fermion-Generationen im Standardmodell der Elementarteilchenphysik. Eine Messung des Produktionswirkungsquerschnittes einzelner Top-Quarks ermöglicht somit einen direkten Test der V-A-Struktur der elektroschwachen Wechselwirkung. Die Ereignisse werden zunächst in einer sogenannten IntroductionTo understand the composition of matter and the fundamental forces of nature is an aim that has been driving human kind for centuries. On large scales the theory of general relativity [1] describes the clustering of galaxies and the movement of planets around the sun due to gravity. The theory of general relativity extends the Newtonian gravity [2] that is able to explain the falling of apples from trees. On small scales, scattering experiments are performed to find the elementary particles matter is built of. It has been shown that atoms consist of electrons and nucleons [3], and that even the nucleons are not elementary. Their basic constitutents are called quarks [4]. The quark model led to the development of Quantum ChromoDynamics (QCD), explaining the behaviour of the strong force. Furthermore, the weak and the electromagnetic forces could be unified in the Glashow-Weinberg-Salam (GWS) model. Building upon much earlier work, in the 1960s and 1970s the Standard Model of elementary particle physics was developed, a quantum field theory describing the interactions at very small scales, including all fundamental forces except for gravity.At particle accelerators the Standard Model has been tested and will be tested further to a great precision [5]. The data analyzed in this thesis have been collected at the world's highest energetic-collider, the Tevatron, located at the Fermi National Accelerator Laboratory (FNAL) in the vicinity of Chicago, IL, USA. There, protons and antiprotons are collided at a center-of-mass energy of √ s = 1.96 TeV. The discovery of the top quark [6,7] was one of the remarkable results not only for the CDF and DØ exp...

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Status and prospects of top-quark physics

Cited by 36 publications

References 330 publications

Measurement of the $\mathrm{{t\bar{t}}}$ production cross section in pp collisions at $\sqrt{s}=7$ TeV using the kinematic properties of events with leptons and jets

Measurement of the $\mathrm{{t\bar{t}}}$ production cross section in pp collisions at $\sqrt{s}=7$ TeV using the kinematic properties of events with leptons and jets

Top Physics at the Tevatron

Measurement of the electroweak top quark production cross section and the CKM matrix element Vtb with the D0 experiment

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