Post-classicism in Tree Amplitudes

The Evolution of Renaissance Classicism

The term "Renaissance classicism" refers to a fundamental attribute of the period that scholars refer to as the European Renaissance, roughly 1400–1600. Renaissance classicism was an intellectual movement that sought to mimic the literature, rhetoric, art, and philosophy of the ancient world, specifically ancient Rome. Scholars, politicians, and philosophers looked to ancient literary and artis...

MHV Vertices and Tree Amplitudes In Gauge Theory

As an alternative to the usual Feynman graphs, tree amplitudes in Yang-Mills theory can be constructed from tree graphs in which the vertices are tree level MHV scattering amplitudes, continued off shell in a particular fashion. The formalism leads to new and relatively simple formulas for many amplitudes, and can be heuristically derived from

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Classicism, Positivism and Social Defense

Tree Level Recursion Relations In General Relativity

Recently, tree-level recursion relations for scattering amplitudes of gluons in YangMills theory have been derived. In this note we propose a generalization of the recursion relations to tree-level scattering amplitudes of gravitons. We use the relations to derive new simple formulae for all amplitudes up to six gravitons. In particular, we present an explicit formula for the six graviton non-M...