Singularity Structure of Maximally Supersymmetric Scattering Amplitudes
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Singularity Structure of Maximally Supersymmetric Scattering Amplitudes. / Arkani-Hamed, Nima; Bourjaily, Jacob L.; Cachazo, Freddy; Trnka, Jaroslav.
I: Physical Review Letters, Bind 113, Nr. 26, 261263, 29.12.2014.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Singularity Structure of Maximally Supersymmetric Scattering Amplitudes
AU - Arkani-Hamed, Nima
AU - Bourjaily, Jacob L.
AU - Cachazo, Freddy
AU - Trnka, Jaroslav
PY - 2014/12/29
Y1 - 2014/12/29
N2 - We present evidence that loop amplitudes in maximally supersymmetric (N=4) Yang-Mills theory (SYM) beyond the planar limit share some of the remarkable structures of the planar theory. In particular, we show that through two loops, the four-particle amplitude in full N=4 SYM has only logarithmic singularities and is free of any poles at infinity—properties closely related to uniform transcendentality and the UV finiteness of the theory. We also briefly comment on implications for maximal (N=8) supergravity theory (SUGRA).
AB - We present evidence that loop amplitudes in maximally supersymmetric (N=4) Yang-Mills theory (SYM) beyond the planar limit share some of the remarkable structures of the planar theory. In particular, we show that through two loops, the four-particle amplitude in full N=4 SYM has only logarithmic singularities and is free of any poles at infinity—properties closely related to uniform transcendentality and the UV finiteness of the theory. We also briefly comment on implications for maximal (N=8) supergravity theory (SUGRA).
U2 - 10.1103/PhysRevLett.113.261603
DO - 10.1103/PhysRevLett.113.261603
M3 - Journal article
C2 - 25615304
VL - 113
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 26
M1 - 261263
ER -
ID: 138735136