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Masses And Mixings Of Quarks And Leptons

Masses And Mixings Of Quarks And Leptons
Author: Yoshio Koide
Publisher: World Scientific
Total Pages: 346
Release: 1998-03-04
Genre:
ISBN: 9814545260
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It is widely accepted that quarks and leptons should be understood on the basis of the same unification scheme. The investigation of hidden rules behind observed quark and lepton mass spectra will provide a very important clue to a unified model of quarks and leptons. Now the investigation is timely because of the recent abundance of data on the CKM matrix elements and neutrino mixings. This volume offers useful information and hints on a unified understanding of quarks and leptons.

International Workshop on Masses and Mixings of Quarks and Leptons

International Workshop on Masses and Mixings of Quarks and Leptons
Author: Yoshio Koide
Publisher: World Scientific Publishing Company Incorporated
Total Pages: 328
Release: 1998
Genre: Science
ISBN: 9789810233631
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It is widely accepted that quarks and leptons should be understood on the basis of the same unification scheme. The investigation of hidden rules behind observed quark and lepton mass spectra will provide a very important clue to a unified model of quarks and leptons. Now the investigation is timely because of the recent abundance of data on the CKM matrix elements and neutrino mixings. This volume offers useful information and hints on a unified understanding of quarks and leptons.

Quarks, Leptons, and Their Constituents

Quarks, Leptons, and Their Constituents
Author: Antonino Zichichi
Publisher: Springer Science & Business Media
Total Pages: 611
Release: 2012-12-06
Genre: Technology & Engineering
ISBN: 1461308895
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From 5 to 15 August 1984, a group of 79 physicists from 61 laboratories in 26 countries met in Erice for the 22nd Course of the International School of Subnuclear Physics. The countries represented were Austria, Belgium, Brazil, Bulgaria, Canada, People's Republic of China, Denmark, the Federal Republic of Germany, France, Greece, Hungary, Iran, Israel, Italy, Japan, Korea, Malaysia, Mexico, the Netherlands, Pakistan, Poland, Sweden, Switzerland, Turkey, the United Kingdom, the United States of America. The School was sponsored by the Italian Ministry of Public Education (MPI), the Italian Ministry of Scientific and Technologi cal Research (MRST), the Regional Sicilian Government (ERS), and the Weizmann Institute of Science. The programme of the School was devoted to a review of the most significant results in theoretical and experimental research work on the interactions between what we believe today are the point like constituents of the world: quarks and leptons. It should however not be forgotten that many problems are still to be understood: especially in the forefront of the correla tion between quarks and leptons. This game started in 1966 with the proposal for "leptonic quarks" and went on with "preons" and "rishons" just to quote the most famous attempts to unify these two worlds.

Massive Neutrinos: Flavor Mixing Of Leptons And Neutrino Oscillations

Massive Neutrinos: Flavor Mixing Of Leptons And Neutrino Oscillations
Author: Harald Fritzsch
Publisher: World Scientific
Total Pages: 307
Release: 2015-08-28
Genre: Science
ISBN: 9814704784
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Since the discovery of neutrino oscillations neutrino physics has become an interesting field of research in physics. They imply that neutrino must have a small mass and that the neutrinos, coupled to the charged leptons, are mixtures of the mass eigenstates, analogous to the flavor mixing of the quarks. The mixing angles for the quarks are small, but for the leptons two of the mixing angles are large. The masses of the three neutrinos must be very small, less than 1 eV, but from the oscillation experiments we only know the mass differences — the absolute masses are still unknown. Also we do not know, if the masses of the neutrinos are Dirac masses, as the masses of the charged leptons and of the quarks, or whether they are Majorana masses.In this volume, an overview of the present state of research in neutrino physics is given by well-known experimentalists and theorists. The contents — originated from talks and discussions at a recent conference addressing some of the most pressing open questions in neutrino physics — range from the oscillation experiments to CP-violation for leptons, to texture zero mass matrices and to the role of neutrinos in astrophysics and cosmology.

MPI-PAE/PTh 93/83

MPI-PAE/PTh 93/83
Author: Harald (Physiker) Fritzsch
Publisher:
Total Pages: 9
Release: 1983
Genre:
ISBN:
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Quarks and Leptons as Fundamental Particles

Quarks and Leptons as Fundamental Particles
Author: Paul Urban
Publisher: Springer Science & Business Media
Total Pages: 717
Release: 2013-03-13
Genre: Science
ISBN: 3709185742
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The main task of an experimental talk at a theoreticians school should probably be a tempering one. In this respect, e+e- physics may have been a bad choice. The field has so rapidly developed and dis coveries are chasing each other that much of the optimism of theory has passed over to e+e- experimentalists. A vast amount of experimental material arose from the simple reaction of e+e- annihilation. I, therefore, have to limit myself to recent results - most of them less than one year old. The paper will be organized as follows: In the first lecture (chapter I and II) I will give - a short introduction to e e machines and cross sections. In particular I will discuss the total cross section an- after a short summary on charm - concentrate on the third generation of auarks and leptons: the heavy lepton T and the T family. In my second lecture the various aspects of event topologies in the DORIS energy range will be discussed, including the T decay. In the third lecture I will then describe the new storage ring PETRA and present first results on QED checks, total cross section, jet structure, and two-photon processes.