Spin Correlations in tt Events from pp Collisions

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Publisher : Springer
ISBN 13 : 3319189328
Total Pages : 246 pages
Book Rating : 4.3/5 (191 download)

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Book Synopsis Spin Correlations in tt Events from pp Collisions by : Boris Lemmer

Download or read book Spin Correlations in tt Events from pp Collisions written by Boris Lemmer and published by Springer. This book was released on 2015-06-24 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis introduces readers to the Standard Model, the top quark and its properties, before explaining the concept of spin correlation measurement. The first measurement of top quark spin correlations at the LHC in the lepton+jets decay channel is presented. As the heaviest elementary particle, the top quark plays an essential role in the Standard Model of elementary particle physics. In the case of top quarks being produced in pairs at hadron colliders, the Standard Model predicts their spins to be correlated. The degree of correlation depends on both the production mechanism and properties of the top quark. Any deviation from the Standard Model prediction can be an indicator for new physics phenomena. The thesis employs an advanced top quark reconstruction algorithm including dedicated identification of the up- and down-type quarks from the W boson decay.

Measurement of Tt Production Cross Section in Pp Collisions at [square Root] S

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Publisher :
ISBN 13 :
Total Pages : 418 pages
Book Rating : 4.3/5 (121 download)

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Book Synopsis Measurement of Tt Production Cross Section in Pp Collisions at [square Root] S by : Harpreet Singh

Download or read book Measurement of Tt Production Cross Section in Pp Collisions at [square Root] S written by Harpreet Singh and published by . This book was released on 1999 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Phenomena Beyond the Standard Model: What Do We Expect for New Physics to Look Like?

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Publisher : Frontiers Media SA
ISBN 13 : 2889639908
Total Pages : 180 pages
Book Rating : 4.8/5 (896 download)

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Book Synopsis Phenomena Beyond the Standard Model: What Do We Expect for New Physics to Look Like? by : Roman Pasechnik

Download or read book Phenomena Beyond the Standard Model: What Do We Expect for New Physics to Look Like? written by Roman Pasechnik and published by Frontiers Media SA. This book was released on 2020-09-03 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.

Search for New Phenomena in Top-Antitop Quarks Final States with Additional Heavy-Flavour Jets with the ATLAS Detector

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Publisher : Springer Nature
ISBN 13 : 9811509328
Total Pages : 288 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Search for New Phenomena in Top-Antitop Quarks Final States with Additional Heavy-Flavour Jets with the ATLAS Detector by : Daiki Yamaguchi

Download or read book Search for New Phenomena in Top-Antitop Quarks Final States with Additional Heavy-Flavour Jets with the ATLAS Detector written by Daiki Yamaguchi and published by Springer Nature. This book was released on 2019-10-30 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on the search for a new heavy particle, the Vector-Like Top quark (VLT), in the Large Hadron Collider (LHC) at CERN. The signal process is the pair production of VLT decaying into a Higgs boson and top quark (TT→Ht+X, X=Ht, Wb, Zt). The signal events result in top–antitop quarks final states with additional heavy flavour jets. The book summarises the analysis of the data collected with the ATLAS detector in 2015 and 2016. In order to better differentiate between signals and backgrounds, exclusive taggers of top quark and Higgs boson were developed and optimised for VLT signals. These efforts improved the sensitivity by roughly 30%, compared to the previous analysis. The analysis outcomes yield the strongest constraints on parameter space in various BSM theoretical models. In addition, the book addresses detector operation and the evaluation of tracking performance. These efforts are essential to properly collecting dense events and improving the accuracy of the reconstructed objects that are used for particle identification. As such, they represent a valuable contribution to data analysis in extremely dense environments.

Advances in Jet Substructure at the LHC

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Publisher : Springer Nature
ISBN 13 : 3030728587
Total Pages : 287 pages
Book Rating : 4.0/5 (37 download)

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Book Synopsis Advances in Jet Substructure at the LHC by : Roman Kogler

Download or read book Advances in Jet Substructure at the LHC written by Roman Kogler and published by Springer Nature. This book was released on 2021-05-10 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the reader to the field of jet substructure, starting from the basic considerations for capturing decays of boosted particles in individual jets, to explaining state-of-the-art techniques. Jet substructure methods have become ubiquitous in data analyses at the LHC, with diverse applications stemming from the abundance of jets in proton-proton collisions, the presence of pileup and multiple interactions, and the need to reconstruct and identify decays of highly-Lorentz boosted particles. The last decade has seen a vast increase in our knowledge of all aspects of the field, with a proliferation of new jet substructure algorithms, calculations and measurements which are presented in this book. Recent developments and algorithms are described and put into the larger experimental context. Their usefulness and application are shown in many demonstrative examples and the phenomenological and experimental effects influencing their performance are discussed. A comprehensive overview is given of measurements and searches for new phenomena performed by the ATLAS and CMS Collaborations. This book shows the impressive versatility of jet substructure methods at the LHC.

A Measurement of the Production Cross Section of Tt Pairs in Proton-antiproton Collisions at [square Root]s

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Publisher :
ISBN 13 :
Total Pages : 544 pages
Book Rating : 4.:/5 (34 download)

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Book Synopsis A Measurement of the Production Cross Section of Tt Pairs in Proton-antiproton Collisions at [square Root]s by : Henri Bachacou

Download or read book A Measurement of the Production Cross Section of Tt Pairs in Proton-antiproton Collisions at [square Root]s written by Henri Bachacou and published by . This book was released on 2004 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Eps: High Energy Physics '95: Proceedings Of The International Europhysics Conference

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Author :
Publisher : World Scientific
ISBN 13 : 9814547700
Total Pages : 1042 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Eps: High Energy Physics '95: Proceedings Of The International Europhysics Conference by : Catherine Vander Velde

Download or read book Eps: High Energy Physics '95: Proceedings Of The International Europhysics Conference written by Catherine Vander Velde and published by World Scientific. This book was released on 1996-05-28 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:

New Results And Actual Problems In Particle & Astroparticle Physics And Cosmology - Proceedings Of Xxixth International Workshop On High Energy Physics

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Publisher : World Scientific
ISBN 13 : 9814578754
Total Pages : 234 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis New Results And Actual Problems In Particle & Astroparticle Physics And Cosmology - Proceedings Of Xxixth International Workshop On High Energy Physics by : Roman Anatolievich Ryutin

Download or read book New Results And Actual Problems In Particle & Astroparticle Physics And Cosmology - Proceedings Of Xxixth International Workshop On High Energy Physics written by Roman Anatolievich Ryutin and published by World Scientific. This book was released on 2014-03-26 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique volume contains the materials of the XXIXth International Workshop on High Energy Physics. The content of the volume is much wider than just high-energy physics and actually concerns all the most fundamental areas of modern physics research: high-energy physics proper, gravitation and cosmology. Presentations embrace both theory and experiment.

Search for tt̄H Production in the H → bb̅ Decay Channel

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Publisher : Springer Nature
ISBN 13 : 3030653803
Total Pages : 217 pages
Book Rating : 4.0/5 (36 download)

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Book Synopsis Search for tt̄H Production in the H → bb̅ Decay Channel by : Marcel Rieger

Download or read book Search for tt̄H Production in the H → bb̅ Decay Channel written by Marcel Rieger and published by Springer Nature. This book was released on 2021-02-25 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1964, a mechanism explaining the origin of particle masses was proposed by Robert Brout, François Englert, and Peter W. Higgs. 48 years later, in 2012, the so-called Higgs boson was discovered in proton-proton collisions recorded by experiments at the LHC. Since then, its ability to interact with quarks remained experimentally unconfirmed. This book presents a search for Higgs bosons produced in association with top quarks tt̄H in data recorded with the CMS detector in 2016. It focuses on Higgs boson decays into bottom quarks H → bb̅ and top quark pair decays involving at least one lepton. In this analysis, a multiclass classification approach using deep learning techniques was applied for the first time. In light of the dominant background contribution from tt̄ production, the developed method proved to achieve superior sensitivity with respect to existing techniques. In combination with searches in different decay channels, the presented work contributed to the first observations of tt̄H production and H → bb̅ decays.

Discovery Of The Higgs Boson

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Publisher : World Scientific
ISBN 13 : 981442546X
Total Pages : 470 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Discovery Of The Higgs Boson by : Aleandro Nisati

Download or read book Discovery Of The Higgs Boson written by Aleandro Nisati and published by World Scientific. This book was released on 2016-08-26 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recent observation of the Higgs boson has been hailed as the scientific discovery of the century and led to the 2013 Nobel Prize in physics. This book describes the detailed science behind the decades-long search for this elusive particle at the Large Electron Positron Collider at CERN and at the Tevatron at Fermilab and its subsequent discovery and characterization at the Large Hadron Collider at CERN. Written by physicists who played leading roles in this epic search and discovery, this book is an authoritative and pedagogical exposition of the portrait of the Higgs boson that has emerged from a large number of experimental measurements. As the first of its kind, this book should be of interest to graduate students and researchers in particle physics.

A Guide to Experimental Particle Physics Literature, 1994-1998

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Publisher :
ISBN 13 :
Total Pages : 462 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis A Guide to Experimental Particle Physics Literature, 1994-1998 by : V. V. Ezhela

Download or read book A Guide to Experimental Particle Physics Literature, 1994-1998 written by V. V. Ezhela and published by . This book was released on 1999 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Search for Flavor-Changing Neutral Current Top Quark Decays t → Hq, with H → bb̅ , in pp Collisions at √s = 8 TeV with the ATLAS Detector

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Publisher : Springer
ISBN 13 : 3319634143
Total Pages : 248 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Search for Flavor-Changing Neutral Current Top Quark Decays t → Hq, with H → bb̅ , in pp Collisions at √s = 8 TeV with the ATLAS Detector by : Shota Tsiskaridze

Download or read book Search for Flavor-Changing Neutral Current Top Quark Decays t → Hq, with H → bb̅ , in pp Collisions at √s = 8 TeV with the ATLAS Detector written by Shota Tsiskaridze and published by Springer. This book was released on 2017-08-02 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This PhD thesis focuses on the search for flavor-changing neutral currents in the decay of a top quark to an up-type quark (q = u, c) and the Standard Model Higgs boson, where the Higgs boson decays to bb. Further, the thesis presents the combination of this search for top quark pair events with other ATLAS searches – in the course of which the most restrictive bounds to date on tqH interactions were obtained. Following on from the discovery of the Higgs boson, it is particularly important to measure the Yukawa couplings of the Standard Model fermions; these parameters may provide crucial insights to help solve the flavor puzzle and may help reveal the presence of new physics before it is directly observed in experiments.

Measurement of Top Pair Production Cross Section in Electron + Jets Channel in Ppbar Collisions at [square Root Of] S

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Publisher :
ISBN 13 :
Total Pages : 298 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Measurement of Top Pair Production Cross Section in Electron + Jets Channel in Ppbar Collisions at [square Root Of] S by : Chunhui Han

Download or read book Measurement of Top Pair Production Cross Section in Electron + Jets Channel in Ppbar Collisions at [square Root Of] S written by Chunhui Han and published by . This book was released on 2003 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Division of Particles and Fields of the American Physical Society

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Publisher :
ISBN 13 :
Total Pages : 976 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis The Division of Particles and Fields of the American Physical Society by : American Physical Society. Division of Particles and Fields. Meeting

Download or read book The Division of Particles and Fields of the American Physical Society written by American Physical Society. Division of Particles and Fields. Meeting and published by . This book was released on 2001 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:

SUSY2004

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Publisher :
ISBN 13 :
Total Pages : 518 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis SUSY2004 by : Kaoru Hagiwara

Download or read book SUSY2004 written by Kaoru Hagiwara and published by . This book was released on 2004 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Collider Physics within the Standard Model

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Publisher : Springer
ISBN 13 : 3319519204
Total Pages : 183 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Collider Physics within the Standard Model by : Guido Altarelli

Download or read book Collider Physics within the Standard Model written by Guido Altarelli and published by Springer. This book was released on 2017-04-19 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. With this graduate-level primer, the principles of the standard model of particle physics receive a particular skillful, personal and enduring exposition by one of the great contributors to the field. In 2013 the late Prof. Altarelli wrote: The discovery of the Higgs boson and the non-observation of new particles or exotic phenomena have made a big step towards completing the experimental confirmation of the standard model of fundamental particle interactions. It is thus a good moment for me to collect, update and improve my graduate lecture notes on quantum chromodynamics and the theory of electroweak interactions, with main focus on collider physics. I hope that these lectures can provide an introduction to the subject for the interested reader, assumed to be already familiar with quantum field theory and some basic facts in elementary particle physics as taught in undergraduate courses. “These lecture notes are a beautiful example of Guido’s unique pedagogical abilities and scientific vision”. From the Foreword by Gian Giudice

The Division of Particles and Fields of the American Physical Society (DPF 2000)

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Publisher :
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis The Division of Particles and Fields of the American Physical Society (DPF 2000) by : American Physical Society. Division of Particles and Fields. Meeting

Download or read book The Division of Particles and Fields of the American Physical Society (DPF 2000) written by American Physical Society. Division of Particles and Fields. Meeting and published by . This book was released on 2001 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: