TY - JOUR
T1 - Dissolving script N sign = 4 loop amplitudes into QCD tree amplitudes
AU - Roiban, Radu
AU - Spradlin, Marcus
AU - Volovich, Anastasia
PY - 2005/3/18
Y1 - 2005/3/18
N2 - We use the infrared consistency of one-loop amplitudes in script N sign = 4 Yang-Mills theory to derive a compact analytic formula for a tree-level next-to-next-to-maximal helicity-violating gluon scattering amplitude in QCD, the first such formula known. We argue that the infrared conditions, coupled with recent advances in calculating one-loop box coefficients, can give a new tool for computing tree-level amplitudes in general. Our calculation suggests that many amplitudes have a structure which is even simpler than that revealed so far by current twistor-space constructions.
AB - We use the infrared consistency of one-loop amplitudes in script N sign = 4 Yang-Mills theory to derive a compact analytic formula for a tree-level next-to-next-to-maximal helicity-violating gluon scattering amplitude in QCD, the first such formula known. We argue that the infrared conditions, coupled with recent advances in calculating one-loop box coefficients, can give a new tool for computing tree-level amplitudes in general. Our calculation suggests that many amplitudes have a structure which is even simpler than that revealed so far by current twistor-space constructions.
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U2 - 10.1103/PhysRevLett.94.102002
DO - 10.1103/PhysRevLett.94.102002
M3 - Article
AN - SCOPUS:18044396162
SN - 0031-9007
VL - 94
JO - Physical review letters
JF - Physical review letters
IS - 10
M1 - 102002
ER -