2014-03-06
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2014-03-06
17:27 |
ebook
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2014-03-06
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2014-03-06
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2014-03-06
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Purchase it for me! - CERN library copies
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2014-03-06
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Purchase it for me! - CERN library copies
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2014-03-03
18:20 |
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Scattering amplitudes in gauge theories
/ Henn, Johannes M
At the fundamental level, the interactions of elementary particles are described by quantum gauge field theory The quantitative implications of these interactions are captured by scattering amplitudes, traditionally computed using Feynman diagrams In the past decade tremendous progress has been made in our understanding of and computational abilities with regard to scattering amplitudes in gauge theories, going beyond the traditional textbook approach These advances build upon on-shell methods that focus on the analytic structure of the amplitudes, as well as on their recently discovered hidden symmetries In fact, when expressed in suitable variables the amplitudes are much simpler than anticipated and hidden patterns emerge These modern methods are of increasing importance in phenomenological applications arising from the need for high-precision predictions for the experiments carried out at the Large Hadron Collider, as well as in foundational mathematical physics studies on the S-matrix in quantum field theory Bridging the gap between introductory courses on quantum field theory and state-of-the-art research, these concise yet self-contained and course-tested lecture notes are well-suited for a one-semester graduate level course or as a self-study guide for anyone interested in fundamental aspects of quantum field theory and its applications The numerous exercises and solutions included will help readers to embrace and apply the material presented in the main text
Berlin : Springer, 2014.
(Lecture Notes in Physics ; 883)
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2014-03-03
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Nuclear reactions
: an introduction
/ Paetz gen Schieck, Hans
Nuclei and nuclear reactions offer a unique setting for investigating three (and in some cases even all four) of the fundamental forces in nature Nuclei have been shown – mainly by performing scattering experiments with electrons, muons, and neutrinos – to be extended objects with complex internal structures constituent quarks; gluons, whose exchange binds the quarks together; sea-quarks, the ubiquitous virtual quark-antiquark pairs and, last but not least, clouds of virtual mesons, surrounding an inner nuclear region, their exchange being the source of the nucleon-nucleon interaction The interplay between the (mostly attractive) hadronic nucleon-nucleon interaction and the repulsive Coulomb force is responsible for the existence of nuclei; their degree of stability, expressed in the details and limits of the chart of nuclides; their rich structure and the variety of their interactions Despite the impressive successes of the classical nuclear models and of ab-initio approaches, there is clearly no end in sight for either theoretical or experimental developments as shown eg by the recent need to introduce more sophisticated three-body interactions to account for an improved picture of nuclear structure and reactions Yet, it turns out that the internal structure of the nucleons has comparatively little influence on the behavior of the nucleons in nuclei, and nuclear physics – especially nuclear structure and reactions – is thus a field of science in its own right, without much recourse to subnuclear degrees of freedom This book collects essential material that was presented in the form of lectures notes in nuclear physics courses for graduate students at the University of Cologne It follows the course's approach, conveying the subject matter by combining experimental facts and experimental methods and tools with basic theoretical knowledge Emphasis is placed on the importance of spin and orbital angular momentum (leading eg to applications in energy research, such as fusion with polarized nuclei), and on the operational definition of observables in nuclear physics The end-of-chapter problems serve above all to elucidate and detail physical ideas that could not be presented in full detail in the main text Readers are assumed to have a working knowledge of quantum mechanics and a basic grasp of both non-relativistic and relativistic kinematics; the latter in particular is a prerequisite for interpreting nuclear reactions and the connections to particle and high-energy physics
Berlin : Springer, 2014.
(Lecture Notes in Physics ; 882)
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2014-03-03
18:20 |
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A brief history of string theory
: from dual models to m-theory
/ Rickles, Dean
During its forty year lifespan, string theory has always had the power to divide, being called both a 'theory of everything' and a 'theory of nothing' Critics have even questioned whether it qualifies as a scientific theory at all This book adopts an objective stance, standing back from the question of the truth or falsity of string theory and instead focusing on how it came to be and how it came to occupy its present position in physics An unexpectedly rich history is revealed, with deep connections to our most well-established physical theories Fully self-contained and written in a lively fashion, the book will appeal to a wide variety of readers from novice to specialist
Berlin : Springer, 2014.
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2014-03-03
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Ultimate horizons
: probing the limits of the universe
/ Satz, Helmut
In the last hundred years, modern physics and cosmology have shown that there exist regions of the universe forever beyond our reach, hidden by truly ultimate horizons Such regions exist in those remote parts of the universe where, from our point of view, space expands faster than the speed of light They are found in black holes, where the gravity is strong enough to retain even light within its field of attraction And in the realm of the very small, quarks must remain forever confined to their world of extreme density and can never be removed from it The aim of this book is to describe these ultimate horizons, how they were discovered, how they shape our view of the world, and what clues we have about a world beyond them
Berlin : Springer, 2013.
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