Lectures on quantum chromodynamics by A. V. Smilga | (PDF) Free Download

Description

Quantum chromodynamics is the fundamental theory of strong interactions. It is a physical theory describing Nature. Lectures on Quantum Chromodynamics concentrates, however, not on the phenomenological aspect of QCD; books with comprehensive coverage of phenomenological issues have been written. What the reader will find in this book is a profound discussion on the theoretical foundations of QCD with emphasis on the nonperturbative formulation of the theory: What is gauge symmetry on the classical and on the quantum level? What is the path integral in field theory? How to define the path integral on the lattice, keeping intact as many symmetries of the continuum theory as possible? What is the QCD vacuum state? What is the effective low energy dynamics of QCD? How do the ITEP sum rules work? What happens if we heat and/or squeeze hadronic matter? Perturbative issues are also discussed: How to calculate Feynman graphs? What is the BRST symmetry? What is the meaning of the renormalization procedure? How to resum infrared and collinear singularities? And so on. The book is an outgrowth of the course of lectures given by the author for graduate students at ITEP in Moscow. Much extra material has been added.

User’s Reviews

Reviews from Amazon users which were colected at the time this book was published on the website:

⭐First, I think that I should mention that, at least for me, some parts of this book were a very tough read. To a large extent, this is because the book is so incredibly compact, which, since it covers most of the important theoretical topics in QCD, implies that it cannot possibly be as meticulous and explanitory in derivations as, for instance, an introduction in QFT. In other words, this book is for those who are thoroughly familiar with QFT and with its mathematical structure to the point that you can fill out the details of most proofs without too much difficulty. This aside, I must say that this book is filled with fascinating, sometimes a bit unorthodox, insights not only into QCD, but also into all of quantum field theory itself (for example, take his wonderful chapter on path integrals in QM, which stands very well all on its own, or the intriguing viewpoints on gauge fields and their quantization, or especially on his exceedingly compact, elegant, simple, and yet philosophically complete treatment of radiative corrections and in particular on Wilson’s ideas on renormalization).Although this book is not filled with a great deal of phenomenology, I do not think this is the point of the book; it, for me at least, is a profoundly philosophical text on QCD, in other words food for the mind and the soul.

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