Scattering amplitudes in the light-front formalism

C. Cruz-Santiago, P. Kotko, A. M. Stas̈to

Research output: Contribution to journalReview article

15 Scopus citations

Abstract

We review the methods of the computation of the scattering amplitudes in the light-front formalism. Basics of the light-front quantization, as well as helicity methods and different types of recursion relations for scattering amplitudes are reviewed. Computation of the wave-functions and fragmentation functions within the light-front theory are presented. Methods for obtaining off-shell scattering amplitudes are presented together with the new recursion relations which include the gauge invariant extensions of the off-shell amplitudes. Finally, relation between the formalism which makes use of the Wilson lines and light-front formalism is discussed.

Original languageEnglish (US)
Pages (from-to)82-131
Number of pages50
JournalProgress in Particle and Nuclear Physics
Volume85
DOIs
StatePublished - Nov 1 2015

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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