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Written by world-leading experts in particle physics, this new book from Luciano Maiani and Omar Benhar, with contributions from the late Nicola Cabibbo, is based on Feynman’s path integrals. Key elements of gauge theories are described—Feynman diagrams, gauge-fixing, Faddeev-Popov ghosts—as well as renormalization in Quantum Electrodynamics. Quarks and QCD interactions are introduced. Renormalization group and high momentum behaviour of the coupling constants is discussed in QED and QCD, with asymptotic freedom derived at one-loop. These concepts are related to the Higgs boson and models of grand unification. "... an excellent introduction to the quantum theory of gauge fields and the...
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This reprint volume is in honour of one of the leaders of Italian high-energy physics, Antonino Zichichi, who is now 65 years old. It covers the first part of his activity: the years 1959-1976, probably the most intense of his scientific career. The volume includes reprints of articles and of some published laboratory reports, documenting the extraordinary constancy of Zichichi in a scientific programme which spanned more than a decade and laid the foundations for the subsequent discovery by M Perl of the heavy lepton, HL (now called τ), first proposed and searched for at CERN and Frascati by Zichichi in the early sixties.
"The 'undisputed contribution' of John Paul II to Christian thought 'can be understood as a profound meditation on the person'. This is what Benedict XVI said to those taking part in the working group of the Pontifical Academy of Sciences and the Pontifical Academy of Social Sciences whom His Holiness met in the morning of Monday, 21 November, in Casina Pio IV, in the Vatican. The Holy Father was received by Bishop Msgr. Marcelo Sánchez Sorondo, Chancellor of the Pontifical Academy of Sciences and of the Pontifical Academy of Social Sciences. Prof. Nicola Cabibbo, the President of the Pontifical Academy of Sciences, and Prof. Mary Ann Glendon, the President of the Pontifical Academy of Social Sciences, gave ... speeches of welcome to the Holy Father."--Page [4].
This textbook offers a detailed and uniquely self-contained presentation of quantum and gauge field theories. Writing from a modern perspective, the author begins with a discussion of advanced dynamics and special relativity before guiding students steadily through the fundamental principles of relativistic quantum mechanics and classical field theory. This foundation is then used to develop the full theoretical framework of quantum and gauge field theories. The introductory, opening half of the book allows it to be used for a variety of courses, from advanced undergraduate to graduate level, and students lacking a formal background in more elementary topics will benefit greatly from this approach. Williams provides full derivations wherever possible and adopts a pedagogical tone without sacrificing rigour. Worked examples are included throughout the text and end-of-chapter problems help students to reinforce key concepts. A fully worked solutions manual is available online for instructors.
In 1967 a group of physicists from the University of Bologna, led by A Zichichi, published a proposal to search for a heavy lepton using the Frascati (e+e-) collider. The proposal, whose key pages are reproduced in this book on the 30th anniversary of the publication, was the consequence of many years of work started at CERN, where, in addition to the original idea of searching for a heavy lepton carrying its own leptonic number, new technologies were invented to allow the detection of a signal whose identification against the high background of hadronic processes was extremely difficult.More than ten years of work by A Zichichi, together with his students and his collaborators, have paved the way for the discovery of the Third Family of fundamental particles. In this authoritative volume, a group of eminent physicists unequivocally establishes the origin of the Third Family of the basic constituents of matter.
This book explains the fascinating world of quarks and leptons and the forces that govern their behavior. Told from an experimental physicist's perspective, it forgoes mathematical complexity, using instead particularly accessible figures and apt analogies. In addition to the story of quarks and leptons, which are regarded as well-accepted fact, the author (who is a leading researcher at one of the world's highest energy particle physics laboratories) also discusses mysteries at both the experimental and theoretical frontiers, before tying it all together with the exciting field of cosmology and indeed the birth of the universe itself.
Elementary Particles
The twentieth century was defined by physics. From the minds of the world's leading physicists there flowed a river of ideas that would transport mankind to the pinnacle of wonderment and to the very depths of human despair. This was a century that began with the certainties of absolute knowledge and ended with the knowledge of absolute uncertainty. It was a century in which physicists developed weapons with the capacity to destroy our reality, whilst at the same time denying us the possibility that we can ever properly comprehend it. Almost everything we think we know about the nature of our world comes from one theory of physics. This theory was discovered and refined in the first thirty y...