Hadron Production In Quark Antiquark And Gluon Jets From Electron Positron Interactions At The Z0 Pole

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Hadron Production in Quark, Antiquark, and Gluon Jets from Electron-Positron Interactions at the Z0 Pole

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (684 download)

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Book Synopsis Hadron Production in Quark, Antiquark, and Gluon Jets from Electron-Positron Interactions at the Z0 Pole by :

Download or read book Hadron Production in Quark, Antiquark, and Gluon Jets from Electron-Positron Interactions at the Z0 Pole written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present production measurements of the charged hadrons[pi][sup[+-]], K[sup[+-]] and p/[bar p] in e[sup+]e[sup -] interactions at the Z[sup 0] pole. The excellent particle identification capability of the SLC Large Detector (SLD) at the Stanford Linear Collider (SLC) are used. In addition to studies over a wide momentum range in hadronic Z[sup 0] events of all five flavors, we have made the most precise measurements in light (uds), c and b flavor events separately. Unambiguous flavor dependencies have been observed, and the results have been compared with the predictions of several QCD fragmentation models. We have also exploited the unique feature of electron beam polarization in our experiment to compare hadron production separately in quark and antiquark jets. Direct evidence that higher momentum hadrons are more likely to contain the primary quark and antiquark is seen, with precision sufficient to provide new model tests. Finally, we have studied hard gluon jets in detail. We have confirmed that gluon jets have a higher multiplicity of softer particles than light quark jets, and found this enhancement to be the same for[pi][sup[+-]], K[sup[+-]] and p/[bar p] at the few percent level at all momenta. Any overall difference in the hadron fractions is limited to 0.018 at the 95% confidence level, indicating that there are no differences at the hadronization stage in jet formation between gluons and quarks.

Hadron Production in Quark, Antiquark, and Gluon Jets from Electron-positron Interactions at the Z0 Pole

Author : Hyejoo Kang
Publisher :
ISBN 13 :
Total Pages : 352 pages
Book Rating : 4.:/5 (784 download)

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Book Synopsis Hadron Production in Quark, Antiquark, and Gluon Jets from Electron-positron Interactions at the Z0 Pole by : Hyejoo Kang

Download or read book Hadron Production in Quark, Antiquark, and Gluon Jets from Electron-positron Interactions at the Z0 Pole written by Hyejoo Kang and published by . This book was released on 2002 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Resonance Production in Quark and Gluon Jets

Author : Derek William Lane
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (424 download)

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Book Synopsis Resonance Production in Quark and Gluon Jets by : Derek William Lane

Download or read book Resonance Production in Quark and Gluon Jets written by Derek William Lane and published by . This book was released on 1999 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The formation of hadrons from free quarks and gluons is poorly understood and can not be fully explained by current theories. This hadronization process is described using phenomenological models, each reflecting possible scenarios for the QCD dynamics. Electron-positron annihilation at the Z0 resonance provides an ideal environment in which to study hadron production because of the combination of high event rates and clean final states due to the absence of beam and target remnants. Using the particle identification capabilities of the DELPHI detector at the Large Electron-Positron collider (LEP), it is possible to differentiate the production of different hadron species in the final state. This information allows the study of details of the transition from quarks and qluons to stable hadrons. This thesis investigates the hadronization process by comparing the production of [Phi] and K*0 particles produced in quark jets versus those produced in gluon jets at the Z0.

Dissertation Abstracts International

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Publisher :
ISBN 13 :
Total Pages : 756 pages
Book Rating : 4.F/5 ( download)

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Download or read book Dissertation Abstracts International written by and published by . This book was released on 2002 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Jets of Hadrons

Author : Werner Hofmann
Publisher : Springer
ISBN 13 : 3540385894
Total Pages : 223 pages
Book Rating : 4.5/5 (43 download)

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Book Synopsis Jets of Hadrons by : Werner Hofmann

Download or read book Jets of Hadrons written by Werner Hofmann and published by Springer. This book was released on 2006-04-11 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.X/5 (4 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Energy Research Abstracts

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Publisher :
ISBN 13 :
Total Pages : 872 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Energy Research Abstracts by :

Download or read book Energy Research Abstracts written by and published by . This book was released on 1988 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Proceedings of the Fourteenth Rencontre de Moriond, Les Arcs, Savoie, France, March 11-23, 1979: Current hadron interactions

Author : J. Thanh Van Tran
Publisher : Atlantica Séguier Frontières
ISBN 13 :
Total Pages : 724 pages
Book Rating : 4.:/5 (37 download)

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Book Synopsis Proceedings of the Fourteenth Rencontre de Moriond, Les Arcs, Savoie, France, March 11-23, 1979: Current hadron interactions by : J. Thanh Van Tran

Download or read book Proceedings of the Fourteenth Rencontre de Moriond, Les Arcs, Savoie, France, March 11-23, 1979: Current hadron interactions written by J. Thanh Van Tran and published by Atlantica Séguier Frontières. This book was released on 1979 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Physics Briefs

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Publisher :
ISBN 13 :
Total Pages : 1264 pages
Book Rating : 4.3/5 (91 download)

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Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hadrons and Quark–Gluon Plasma

Author : Jean Letessier
Publisher : Cambridge University Press
ISBN 13 : 1009290703
Total Pages : 415 pages
Book Rating : 4.0/5 (92 download)

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Book Synopsis Hadrons and Quark–Gluon Plasma by : Jean Letessier

Download or read book Hadrons and Quark–Gluon Plasma written by Jean Letessier and published by Cambridge University Press. This book was released on 2023-01-31 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2002 monograph, now reissued as OA, explores the primordial state of hadronic matter called quark-gluon plasma.

Hadron Production in Light and Heavy, Quark and Antiquark Jets

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Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Hadron Production in Light and Heavy, Quark and Antiquark Jets by :

Download or read book Hadron Production in Light and Heavy, Quark and Antiquark Jets written by and published by . This book was released on 1996 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors review four hadronization studies performed by the SLD experiment at SLAC, involving separation of light (Z° → u{anti u}, d{anti d}, s{anti s}), c, and b flavors using precision vertexing, and separation of q- and {anti q}-jets using the highly polarized SLC electron beam. They measured the differences between the average charged multiplicities in Z° → light, → c{anti c}, and →b{anti b} events, and found that the results were consistent with predictions of perturbative QCD. Next, they measured?/?/p/?°/?° production in light events for the first time, and compared with production in c- and b-flavor events. They then examined particle production differences in light quark and antiquark hemispheres, and observed more high momentum baryons and K−s̀ than antibaryons and Ks̀ in quark hemispheres, consistent with the leading particle hypothesis. Lastly, they performed a search for jet handedness in light q- and {anti q}-jets. Assuming Standard Model values of quark polarization in Z° decays, they have set an improved upper limit on the analyzing power of the handedness method.

Quark and Gluon Jets from Z0 Decays Produced by E+e- Interactions at the LEP Collider

Author : William John Maitland
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (181 download)

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Book Synopsis Quark and Gluon Jets from Z0 Decays Produced by E+e- Interactions at the LEP Collider by : William John Maitland

Download or read book Quark and Gluon Jets from Z0 Decays Produced by E+e- Interactions at the LEP Collider written by William John Maitland and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hadrons and Quark–Gluon Plasma

Author : Jean Letessier
Publisher : Cambridge University Press
ISBN 13 : 1139433032
Total Pages : 417 pages
Book Rating : 4.1/5 (394 download)

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Book Synopsis Hadrons and Quark–Gluon Plasma by : Jean Letessier

Download or read book Hadrons and Quark–Gluon Plasma written by Jean Letessier and published by Cambridge University Press. This book was released on 2002-05-30 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an accessible introduction to the rapidly expanding field of hadronic interactions and the quark–gluon plasma. Covering the basics as well as more advanced material, it is ideal for graduate students as well as researchers already working in this and related fields.

Production Of[pi][sup[+-], K[sup[+-], P And[bar P] in Quark, Antiquark and Gluon Jets

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (684 download)

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Book Synopsis Production Of[pi][sup[+-], K[sup[+-], P And[bar P] in Quark, Antiquark and Gluon Jets by :

Download or read book Production Of[pi][sup[+-], K[sup[+-], P And[bar P] in Quark, Antiquark and Gluon Jets written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of identified charged hadron production over a wide momentum range using the SLD Cherenkov Ring Imaging Detector. In addition to studying flavor-inclusive Z[sup 0] decays, we compare particle production in decays into light, c and b flavors and compare production in gluon jets with that in light quark jets, where the jet flavors are selected using precision vertex information.

The New Aspects of Subnuclear Physics

Author : Antonio Zichichi
Publisher : Springer Science & Business Media
ISBN 13 : 1461591708
Total Pages : 800 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis The New Aspects of Subnuclear Physics by : Antonio Zichichi

Download or read book The New Aspects of Subnuclear Physics written by Antonio Zichichi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: In August 1978 a group of 80 physicists from 51 laboratories of 15 countries met in Erice to attend the 16th Course of the International School of Subnuclear Physics. The countries represented at the School were: Austria, Denmark, Federal Republic of Germany, Finland, France, Israel, Italy, the Netherlands, Sweden, Switzerland, South Africa, Turkey, the United Kingdom, The United States of America, and Yugoslavia. The School was sponsored by the Italian Ministry of Public Education (MPI) , the Italian Ministry of Scientific and Technological Research (MRSI) , the North Atlantic Treaty Organization (NATO), the Sicilian Regional Government, and the Weizmann Institute of Science. As usual, the Course was devoted to a review of the most out standing problems and results in Subnuclear Physics, with particular emphasis on the new aspects; there were mainly two: supersymmetry and electroweak interactions. In his famous lecture at Erice in 1967, Sid Coleman reviewed "All possible symmetries of the S matrix. " All but one, namely that which tells you: if you have a fermion you must have a boson. This is super symmetry , and this produces the superspace, i. e. an entity which has not only the Einstein-"bosonic" coordinates, but also "fermionic" coordinates. From superspace we get supergravity; and this means that one day we should be able to detect not only the graviton (with spin 2) but also the gravitino (spin 3/2). If we add "flavour", "colour", and "family" as other intrinsic degrees of freedom, we get extended supergravity.

Proceedings of the Fourteenth Rencontre de Moriond, Les Arcs, Savoie, France, March 11-23, 1979: Quarks gluons and jets

Author : J. Thanh Van Tran
Publisher : Atlantica Séguier Frontières
ISBN 13 :
Total Pages : 726 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Proceedings of the Fourteenth Rencontre de Moriond, Les Arcs, Savoie, France, March 11-23, 1979: Quarks gluons and jets by : J. Thanh Van Tran

Download or read book Proceedings of the Fourteenth Rencontre de Moriond, Les Arcs, Savoie, France, March 11-23, 1979: Quarks gluons and jets written by J. Thanh Van Tran and published by Atlantica Séguier Frontières. This book was released on 1979 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Quark Model and High Energy Collisions

Author : Vladimir Vladislavovich Anisovich
Publisher : World Scientific
ISBN 13 : 9812794921
Total Pages : 547 pages
Book Rating : 4.8/5 (127 download)

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Book Synopsis Quark Model and High Energy Collisions by : Vladimir Vladislavovich Anisovich

Download or read book Quark Model and High Energy Collisions written by Vladimir Vladislavovich Anisovich and published by World Scientific. This book was released on 2004 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an updated version of the book published in 1985. QCD-motivated, it gives a detailed description of hadron structure and soft interactions in the additive quark model, where hadrons are regarded as composite systems of dressed quarks. In the past decade it has become clear that nonperturbative QCD, responsible for soft hadronic processes, may differ rather drastically from perturbative QCD. The understanding of nonperturbative QCD requires a detailed investigation of the experiments and the theoretical approaches. Bearing this in mind, the book has been rewritten paying special attention to the interplay of soft hadronic collisions and the quark model. It is at the crossroads of these domains that peculiar features of strong QCD reveal themselves. The book discusses constituent quarks, diquarks, the massive effective gluons and the problem of scalar isoscalar mesons. The quark-gluonium classification of meson states is also given. Experimentally observed properties of hadrons are presented together with the corresponding theoretical interpretation in the framework of the composite hadron structure. The text includes a large theoretical part, which shows how to treat composite systems (including relativistic ones) with a technique based on spectral integration. This technique provides the possibility of handling hadrons as weakly bound systems of quarks and, at the same time, takes into account confinement. Attention is focused on the composite structure revealing itself in high energy hadron collisions. Fields of applicability of the additive quark model are discussed, as is colour screening in hadronic collisions at high and superhigh energies. Along with a detailed presentation of hadronOCohadron collisions, a description of hadronOConucleus collisions is given. Sample Chapter(s). Chapter 1: Introduction (1,047 KB). Contents: High Energy Hadron Interactions; Composite Systems; High Energy Interactions of Composite Systems; Hadron Zoology and Static Features of Hadrons; Binary Processes in the Quark Model; Multiparticle Production in the Quark Model: Hadron Collisions at Moderately High Energies; HadronOCoNucleus Collisions. Readership: Graduate students and researchers in particle and nuclear physics."