Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-10-05
JHEP 0805:096,2008
Physics
High Energy Physics
High Energy Physics - Theory
10 pages
Scientific paper
10.1088/1126-6708/2008/05/096
Two new formulas which express n-graviton MHV tree amplitudes in terms of
sums of squares of n-gluon amplitudes are discussed. The first formula is
derived from recursion relations. The second formula, simpler because it
involves fewer permutations, is obtained from the variant of the Berends,
Giele, Kuijf formula given in Arxiv:0707.1035.
Elvang Henriette
Freedman Daniel Z.
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