Determination of boundary contributions in recursion relation

A bstract In this paper, we propose a new algorithm to systematically determine the missing boundary contributions, when one uses the BCFW on-shell recursion relation to calculate tree amplitudes for general quantum field theories. After an instruction of the algorithm, we will use several examples...

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Veröffentlicht in:	The journal of high energy physics 2015-03, Vol.2015 (3), p.1, Article 23
Hauptverfasser:	Feng, Bo, Zhou, Kang, Qiao, Chenkai, Rao, Junjie
Format:	Artikel
Sprache:	eng
Schlagworte:	Classical and Quantum Gravitation Elementary Particles High energy physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Theoretical Physics Relativity Theory String Theory
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Beschreibung
Zusammenfassung:	A bstract In this paper, we propose a new algorithm to systematically determine the missing boundary contributions, when one uses the BCFW on-shell recursion relation to calculate tree amplitudes for general quantum field theories. After an instruction of the algorithm, we will use several examples to demonstrate its application, including amplitudes of color-ordered ϕ 4 theory, Yang-Mills theory, Einstein-Maxwell theory and color-ordered Yukawa theory with ϕ 4 interaction.
ISSN:	1029-8479 1029-8479
DOI:	10.1007/JHEP03(2015)023