New recursion relations for tree amplitudes of gluons
نویسندگان
چکیده
منابع مشابه
New Recursion Relations for Tree Amplitudes of Gluons
We present new recursion relations for tree amplitudes in gauge theory that give very compact formulas. Our relations give any tree amplitude as a sum over terms constructed from products of two amplitudes of fewer particles multiplied by a Feynman propagator. The two amplitudes in each term are physical, in the sense that all particles are on-shell and momentum conservation is preserved. This ...
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Using newly proposed recursion relations in [25, 26], compact formulas are obtained for tree-level amplitudes of g− 1 g − 2 g − 3 g + 4 g + 5 · · · g + n . We then make an extension of these recursion relations to include fermions of multi-flavors, from which MHV and MHV amplitudes are reproduced. We also calculate non-MHV amplitudes of processes with two fermions and four gluons. Results thus ...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 2005
ISSN: 0550-3213
DOI: 10.1016/j.nuclphysb.2005.02.030