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Author : Ayda Koeksal
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (277 download)
Download or read book Determination of Differences Between Quark and Gluon Jets in 3-jet Events written by Ayda Koeksal and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (685 download)
Download or read book A Measurement of Quark and Gluon Jet Differences at the Z° Resonance written by and published by . This book was released on 1994 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have studied differences between quark and gluon jets using 3-jet events in hadronic decays of Z° bosons collected by the SLD experiment at SLAC. Gluon jets were identified in symmetric 3-jet events containing one jet tagged as a heavy quark jet and compared with a mixed sample of quark and gluon jets and also with a mixed sample of light quark (u, d and s) and gluon jets. Their preliminary results show that the particle multiplicity in gluon jets is higher than that in light quark jets. These results are in qualitative agreement with QCD expectations. Differences are also observed in particle energy spectra and the jet widths, consistent with QCD expectations.
Author : Y. K. Kim
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (255 download)
Download or read book Comparison of Quark and Gluon Jets Using Three-jet Events from E + E - Annihilation at TRISTAN written by Y. K. Kim and published by . This book was released on 1990 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas Meid
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (179 download)
Download or read book An Experimental Investigation Into Differences Between Quark und Gluon Jets in Electron-positron Annihilation Events written by Thomas Meid and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jacob Grunhaus
Publisher : Atlantica Séguier Frontières
ISBN 13 : 9782863320792
Total Pages : 514 pages
Book Rating : 4.3/5 (27 download)
Download or read book Physics in Collision 9 written by Jacob Grunhaus and published by Atlantica Séguier Frontières. This book was released on 1990 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Simone Marzani
Publisher : Springer
ISBN 13 : 3030157091
Total Pages : 205 pages
Book Rating : 4.0/5 (31 download)
Download or read book Looking Inside Jets written by Simone Marzani and published by Springer. This book was released on 2019-05-11 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This concise primer reviews the latest developments in the field of jets. Jets are collinear sprays of hadrons produced in very high-energy collisions, e.g. at the LHC or at a future hadron collider. They are essential to and ubiquitous in experimental analyses, making their study crucial. At present LHC energies and beyond, massive particles around the electroweak scale are frequently produced with transverse momenta that are much larger than their mass, i.e., boosted. The decay products of such boosted massive objects tend to occupy only a relatively small and confined area of the detector and are observed as a single jet. Jets hence arise from many different sources and it is important to be able to distinguish the rare events with boosted resonances from the large backgrounds originating from Quantum Chromodynamics (QCD). This requires familiarity with the internal properties of jets, such as their different radiation patterns, a field broadly known as jet substructure. This set of notes begins by providing a phenomenological motivation, explaining why the study of jets and their substructure is of particular importance for the current and future program of the LHC, followed by a brief but insightful introduction to QCD and to hadron-collider phenomenology. The next section introduces jets as complex objects constructed from a sequential recombination algorithm. In this context some experimental aspects are also reviewed. Since jet substructure calculations are multi-scale problems that call for all-order treatments (resummations), the bases of such calculations are discussed for simple jet quantities. With these QCD and jet physics ingredients in hand, readers can then dig into jet substructure itself. Accordingly, these notes first highlight the main concepts behind substructure techniques and introduce a list of the main jet substructure tools that have been used over the past decade. Analytic calculations are then provided for several families of tools, the goal being to identify their key characteristics. In closing, the book provides an overview of LHC searches and measurements where jet substructure techniques are used, reviews the main take-home messages, and outlines future perspectives.
Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (871 download)
Download or read book A Study of Quark and Gluon Jets and of the Long Distance QCD Force Field at the Z° written by and published by . This book was released on 1993 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantum Chromodynamics (QCD) is widely accepted as the correct theory of the strong nuclear force in elementary particle physics. The precision to which QCD has been tested is relatively limited, however, compared to the precision to which other interactions such as the electro-weak one have been tested. In part, this is because the large value of the QCD coupling constant, [alpha]{sub s}, renders theoretical calculations based on perturbation theory relatively imprecise. The confinement of quarks and gluons inside hadrons also leads to uncertainty because the theoretical predictions cannot, in general, be tested directly against the experimental measurements but are subject to hadronization corrections. From an experimental standpoint, it has proven difficult to isolate gluon jets inside multi-jet events in an unbiased manner so as to determine gluon jet properties using model independent methods. Basic quark-gluon interactions such as the four-jet matrix element in ee− annihilations have been relatively untested due to the lack of a data sample with sufficient statistics. Perturbation theory has essentially nothing to say about the properties of the hadronization process itself. It is for these reasons that QCD has remained relatively untested.
Author : Jiro Kodaira
Publisher : World Scientific
ISBN 13 : 9814544876
Total Pages : 255 pages
Book Rating : 4.8/5 (145 download)
Download or read book Qcd Corrections And New Physics - Proceedings Of The International Symposium written by Jiro Kodaira and published by World Scientific. This book was released on 1998-09-02 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses recent developments in both the theoretical and the experimental aspects of QCD. Its main goal is to establish precise predictions of the Standard Model in order to find clues to the discovery of New Physics.
Author : K.J Peach
Publisher : CRC Press
ISBN 13 : 9780750303262
Total Pages : 498 pages
Book Rating : 4.3/5 (32 download)
Download or read book High Energy Phenomenology written by K.J Peach and published by CRC Press. This book was released on 1994-01-01 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of lectures from eight authoritative speakers, High Energy Phenomenology is a concise introduction for postgraduates new to the field and provides a comprehensive overview of important research activities, results, and future directions for existing researchers. Coverage includes Ian Aitchison's introduction of standard model foundations, HERA physics, the physics and experimental challenges of future hadron colliders, and particle physics and cosmology. The book concludes with Alain Blondel's chapter on precision tests of the standard electroweak model at LEP.
Author : J. Thanh Van Tran
Publisher : Atlantica Séguier Frontières
ISBN 13 : 9782863320662
Total Pages : 670 pages
Book Rating : 4.3/5 (26 download)
Download or read book New Results in Hadronic Interactions written by J. Thanh Van Tran and published by Atlantica Séguier Frontières. This book was released on 1989 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hesheng Chen
Publisher : World Scientific
ISBN 13 : 9814481270
Total Pages : 1424 pages
Book Rating : 4.8/5 (144 download)
Download or read book High Energy Physics written by Hesheng Chen and published by World Scientific. This book was released on 2005-05-03 with total page 1424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 32nd International Conference on High Energy Physics belongs to the Rochester Conference Series, and is the most important international conference in 2004 on high energy physics. The proceedings provide a comprehensive review on the recent developments in experimental and theoretical particle physics. The latest results on Top, Higgs search, CP violation, neutrino mixing, pentaquarks, heavy quark mesons and baryons, search for new particles and new phenomena, String theory, Extra dimension, Black hole and Lattice calculation are discussed extensively. The topics covered include not only those of main interest to the high energy physics community, but also recent research and future plans. Contents: Neutrino Masses and MixingsQuark Matter and Heavy Ion CollisionsParticle Astrophysics and CosmologyElectroweak PhysicsQCD Hard InteractionsQCD Soft InteractionsComputational Quantum Field TheoryCP Violation, Rare Kaon Decay and CKMR&D for Future Accelerator and DetectorHadron Spectroscopy and ExoticsHeavy Quark Mesons and BaryonsBeyond the Standard ModelString Theory Readership: Experimental and theoretical physicists and graduate students in the fields of particle physics, nuclear physics, astrophysics and cosmology.Keywords:High Energy Physics;Particle Physics;Electroweak;QCD;Heavy Quark;Neutrino;Particle Astrophysics;Hadron Spectroscopy;CP Violation;Quark Matter;Future Accelerator
Author : S Oneda
Publisher : World Scientific
ISBN 13 : 9814554782
Total Pages : 946 pages
Book Rating : 4.8/5 (145 download)
Download or read book Hadron '91 - Proceedings Of The International Conference written by S Oneda and published by World Scientific. This book was released on 1992-05-07 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume, the structure and reactions of radioactive nuclei are described. The relevance of halo nuclei to nuclear astrophysics is stressed in different contributions. Other topics included are: three-body aspects of light neutron-rich nuclei, elastic scattering, charge exchange and Coulomb excitation, fragment moment distribution, mass at half-life measurement and electromagnetism-induced fission.
Author : L. Cifarelli
Publisher : Springer Science & Business Media
ISBN 13 : 1461534402
Total Pages : 291 pages
Book Rating : 4.4/5 (615 download)
Download or read book QCD at 200 TeV written by L. Cifarelli and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the Proceedings of the 17th Workshop of the INFN ELOISATRON Project on "QCD at 200 TeV", held at the "Ettore Majorana" Centre for Scientific Culture, EMCSC, Erice, Trapani, Italy, in the period 11-17 June 1991. The new multi-Te V frontiers of Subnuclear Physics are no more beyond our imagination. A conceptual design of the highest energy (100+100 TeV) proton-proton collider -the ELOISA TRON -already exists. Intensive R & D studies are on the go to develop the most promising and innovative detector technologies for the highest energy and luminosity. QCD (Quantum Chromo-Dynamics) will be the theory to describe the expected Physics scenario of future S upercolliders. The purpose of the Workshop was therefore to review the recent status of QCD in High Energy interactions and to discuss the novel aspects of Perturbative and Non Perturbative QCD with special emphasis on future experimental studies at Super-High Energy Colliders, up to the 200 Te V limit. The topics were: - Classical QCD: particle multiplication, multiplicities and spectra, jet profiles, coherence effects, etc. - Hadron interaction cross-sections and structure functions at Super-High Energies, small-x behaviour, QCD Pomeron, "hot spots"--QCD fragmentation models, present and future. - Artificial neural networks in High Energy Physics. - New theoretical aspects of QCD at Super-High Energies (instanton-induced large cross sections, baryon number violation and peculiar multi-quark production events, etc.)
Author : Ina Sarcevic
Publisher : World Scientific
ISBN 13 : 9814542938
Total Pages : 542 pages
Book Rating : 4.8/5 (145 download)
Download or read book Qcd And Multiparticle Production - Proceedings Of The Xxix International Symposium On Multiparticle Dynamics written by Ina Sarcevic and published by World Scientific. This book was released on 2000-07-05 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume concentrates on three main areas of current research in high energy physics: (1) multiparticle and diffractive production in perturbative and nonperturbative QCD, (2) confinement-deconfinement mechanism and the RHIC physics, and (3) interface between high-energy collisions and cosmic-ray/astro-physics. The specific topics covered include: QCD at high energies, diffractive production, and small-x physics, multiparticle production and systematics: correlations and fluctuations, hadronic final states in e+e-, lepton-hadron and hadron-hadron collisions, relativistic heavy ion collisions, interface between high-energy collisions and cosmic-ray physics, and recent development in deconfinement.
Author : R. Fernandez Alvarez-Estrada
Publisher : Elsevier
ISBN 13 : 1483257290
Total Pages : 729 pages
Book Rating : 4.4/5 (832 download)
Download or read book EPS - High Energy Physics '89 written by R. Fernandez Alvarez-Estrada and published by Elsevier. This book was released on 2016-06-03 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: EPS - High Energy Physics '89 presents the proceeding of the International Europhysics Conference on High Energy physics, held in Madrid, Spain, on September 6–13, 1989. This book outlines several topics on the interface between cosmology/astrophysics and particle physics. Organized into two parts encompassing 181 chapters, this compilation of papers begins with an overview of the implications of the cosmic light element abundances. This text then examines the various aspects of lattice field theory. Other chapters consider the theoretical evidence of a fundamental length in string theory and outline the main features of the higher order corrections to the heavy quark inclusive cross section. This book discusses as well the theory of heavy quark production in hadron collision. The final chapter deals with the idea of low-energy supersymmetry, which relates the scale of supersymmetry breaking to the origin and stability of the electroweak scale. This book is a valuable resource for astrophysicists, physicists, and scientists.
Author : Daniel Lellouch
Publisher : Springer Science & Business Media
ISBN 13 : 3642599826
Total Pages : 1293 pages
Book Rating : 4.6/5 (425 download)
Download or read book International Europhysics Conference on High Energy Physics written by Daniel Lellouch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1997 International Europhysics Conference on High Energy Physics was held at the campus of the Hebrew University of Jerusalem and at the Jerusalem Renaissance Hotel, from August 19th to August 25th, 1997. This was the first time that the European Physical Society had its High Energy Physics Conference outside the boundary of Europe. A total of 550 physicists participated in the conference with a total of 250 presentations in the parallel sessions and 26 presentations in the plenary sessions. The Board of the of the High Energy and Particle Physics division (HEPP) of the EPS acted as the Scientific Organizing Committee. The Board acknowl edges the help of the International Advisory Committee as well as that of the Local Organizing Committee. The conference was co-organized by the Hebrew University of Jerusalem and by the Weizmann Institute of Science, with important help by physi cists from the Israeli Institute of Technology (Technion) and the Tel Aviv University.
Author : Bennie F L Ward
Publisher : World Scientific
ISBN 13 : 9814550817
Total Pages : 538 pages
Book Rating : 4.8/5 (145 download)
Download or read book Radiative Corrections: Status And Outlook - Proceedings Of The Tennessee International Symposium written by Bennie F L Ward and published by World Scientific. This book was released on 1995-05-31 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the state of the art and the outlook for the theoretical and experimental aspects of radiative corrections to the SU2L x U₁ x SUc₃3 Standard Model (SM) of elementary particle physics. Particular emphasis is given to SM tests in high precision Z° physics and high energy hadron collider physics.
