One-Loop Soft Theorems via Dual Superconformal Symmetry
arXiv:1511.06716 · doi:10.1007/JHEP03(2016)084
Abstract
We study soft theorems at one loop in planar N=4 super Yang-Mills theory through finite order in the infrared regulator and to subleading order in the soft parameter δ. In particular, we derive a universal constraint from dual superconformal symmetry, which we use to bootstrap subleading log δ behaviour. Moreover, we determine the complete infrared-finite subleading soft contribution of n-point MHV amplitudes using momentum twistors. Finally, we compute the subleading log δ behaviour of one-loop NMHV ratio functions at six and seven points, finding that universality holds within but not between helicity sectors.
40 pages, 5 figures
References in corpus (31)
- Gluon scattering amplitudes at strong coupling
- Classical Polylogarithms for Amplitudes and Wilson Loops
- Conformal properties of four-gluon planar amplitudes and Wilson loops
- MHV Amplitudes in N=4 Super Yang-Mills and Wilson Loops
- Evidence for a New Soft Graviton Theorem
- The Complete Planar S-matrix of N=4 SYM as a Wilson Loop in Twistor Space
- Effective Field Theories from Soft Limits
- Low's Subleading Soft Theorem as a Symmetry of QED
- Low-Energy Behavior of Gluons and Gravitons from Gauge Invariance
- On Loop Corrections to Subleading Soft Behavior of Gluons and Gravitons
- Loop Corrections to Soft Theorems in Gauge Theories and Gravity
- Notes on the scattering amplitude / Wilson loop duality
- Soft sub-leading divergences in Yang-Mills amplitudes
- Subleading soft theorem in arbitrary dimension from scattering equations
- All tree-level amplitudes in N=4 SYM
- Constraining subleading soft gluon and graviton theorems
- One-Loop Superconformal and Yangian Symmetries of Scattering Amplitudes in N=4 Super Yang-Mills
- Perturbative gravity at null infinity
- Ambitwistor strings at null infinity and subleading soft limits
- Next to subleading soft-graviton theorem in arbitrary dimensions
- Subleading Soft Factor for String Disk Amplitudes
- Perturbative gauge theory at null infinity
- On the soft limit of closed string amplitudes with massive states
- Conformal Invariance of the Subleading Soft Theorem in Gauge Theory
- Efficient Tree-Amplitudes in N=4: Automatic BCFW Recursion in Mathematica
- Proof of the Dual Conformal Anomaly of One-Loop Amplitudes in N=4 SYM
- Soft theorems in maximally supersymmetric theories
- Factorized soft graviton theorems at loop level
- Soft Theorems from Effective Field Theory
- Soft theorem for the graviton, dilaton and the Kalb-Ramond field in the bosonic string
- Double-Soft Limits of Gluons and Gravitons
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- Infinite-Dimensional Fermionic Symmetry in Supersymmetric Gauge Theories
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- Subsubleading soft theorems of gravitons and dilatons in the bosonic string
- Asymptotic dynamics on the worldline for spinning particles
- Multi-Soft gluon limits and extended current algebras at null-infinity
- Note on Identities Inspired by New Soft Theorems
- Grassmannian Integral for General Gauge Invariant Off-shell Amplitudes in N=4 SYM