Helicity Formalism for Spin-2 Particles

Details Helicity Formalism for Spin-2 Particles Helicity Formalism for Spin-2 Particles

2003-06-19

arxiv.org/abs/hep-ph/0306182v3

JHEP 0309:001,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 10 figures, uses JHEP3.cls and axodraw. Some minor clarifications in the text, version to appear in JHEP

Scientific paper

10.1088/1126-6708/2003/09/001

We develop the helicity formalism for spin-2 particles and apply it to the case of gravity in flat extra dimensions. We then implement the large extra dimensions scenario of Arkani-Hamed, Dimopoulos and Dvali in the program AMEGIC++, allowing for an easy calculation of arbitrary processes involving the emission or exchange of gravitons. We complete the set of Feynman rules derived by Han, Lykken and Zhang, and perform several consistency checks of our implementation.

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