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In this work the question whether noncommutative geometry allows for supersymmetric theories is addressed. Noncommutative geometry has seen remarkable applications in high energy physics, viz. the geometrical interpretation of the Standard Model, however such a question has not been answered in a conclusive way so far.The book starts with a systematic analysis of the possibilities for so-called almost-commutative geometries on a 4-dimensional, flat background to exhibit not only a particle content that is eligible for supersymmetry, but also have a supersymmetric action. An approach is proposed in which the basic `building blocks' of potentially supersymmetric theories and the demands for their action to be supersymmetric are identified. It is then described how a novel kind of soft supersymmetry breaking Lagrangian arises naturally from the spectral action. Finally, the above formalism is applied to explore the existence of a noncommutative version of the minimal supersymmetric Standard Model.This book is intended for mathematical/theoretical physicists with an interest in the applications of noncommutative geometry to supersymmetric field theories.
This book provides an introduction to noncommutative geometry and presents a number of its recent applications to particle physics. It is intended for graduate students in mathematics/theoretical physics who are new to the field of noncommutative geometry, as well as for researchers in mathematics/theoretical physics with an interest in the physical applications of noncommutative geometry. In the first part, we introduce the main concepts and techniques by studying finite noncommutative spaces, providing a “light” approach to noncommutative geometry. We then proceed with the general framework by defining and analyzing noncommutative spin manifolds and deriving some main results on them, such as the local index formula. In the second part, we show how noncommutative spin manifolds naturally give rise to gauge theories, applying this principle to specific examples. We subsequently geometrically derive abelian and non-abelian Yang-Mills gauge theories, and eventually the full Standard Model of particle physics, and conclude by explaining how noncommutative geometry might indicate how to proceed beyond the Standard Model.
Textbook of Peripheral Neuropathy is a practical but authoritative reference for clinicians in any medical specialty who are evaluating and treating patients with signs and symptoms of a peripheral neuropathy. Reviewing the full spectrum of clinically significant neuropathies, the book contains chapters on common and rare forms including mononeuropathy in the upper and lower extremities, mononeuritis multiplex, diffuse and symmetric polyneuropathies, brachial and lumbrosacral plexopathies, and spinal root disorders—disorders that can mimic diffuse and/or focal neuropathies, complicating diagnosis and evaluation. Coverage encompasses both inherited and acquired diseases, including neuropath...
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
In the aftermath of the conquest of America by the Russians, a freedom-loving militia movement begins traveling down the long road to freedom. Only through returning to the basic truths that made this America great are the rebel forces able to conquer the Russian occupation forces.
This volume reports the proceedings of a NATO Advanced Workshop held at Cameron House Hotel, Loch Lomond, Scotland, from May 2 - 5, 1994. The major impetus for this workshop was the realisation, over the past 7 years, that the Epstein-Barr virus is associated with a proportion of cases of Hodgkin's disease and is likely to play an aetiological role. There were four main aims of the workshop: first, to discuss the recent findings in relation to Epstein Barr virus and the aetiology of Hodgkin's disease; second, to relate these data to the epidemiology of Hodgkin's disease; third, to discuss other potential aetiological factors and finally, to discuss future directions for research into Hodgkin...