000			02056 a2200193 4500
008			180216b c2014 xxu||||| |||| 00| 0 eng d
020			_a9783642540219
082			_a530.1435 _bHEN
100			_aHenn, Johannes M.
245			_aScattering amplitudes in gauge theories
260			_bSpringer, _c2014. _aHeidelberg:
300			_axv, 195 p. _b ill. ; _c24 cm.
365			_aINR _b3614.05
440			_aLecture notes in physics ; v.883.
500			_aIncludes bibliographical references.
520			_aAt 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.
700			_a Plefka, Jan C.
942			_2ddc _cTD
999			_c46831 _d46831