Double Copy of Form Factors and Higgs Amplitudes: A Mechanism for Turning Spurious Poles in Yang-Mills Theory into Physical Poles in Gravity Article Swipe
Related Concepts
Spurious relationship
Propagator
Physics
Rotation formalisms in three dimensions
Theoretical physics
Generalization
Invariant (physics)
Amplitude
Mathematical physics
Quantum mechanics
Computer science
Mathematics
Mathematical analysis
Machine learning
Geometry
Guanda Lin
,
Gang Yang
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1103/physrevlett.129.251601
· OA: W4311469694
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1103/physrevlett.129.251601
· OA: W4311469694
We extend the double-copy picture of scattering amplitudes to a class of matrix elements (so-called form factors) that involve local gauge-invariant operators. Both the Bern, Carrasco, and Johansson (BCJ) and the Kawai, Lewellen, and Tye formalisms are considered and novel properties are observed. One remarkable feature is that through the double-copy construction, certain spurious poles hidden in the gauge form factors become physical propagators in gravity. This mechanism also reveals new hidden relations for form factors which can be understood as a generalization of the BCJ relations.
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