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research article
A scattering amplitude in Conformal Field Theory
November 25, 2020
We define form factors and scattering amplitudes in Conformal Field Theory as the coefficient of the singularity of the Fourier transform of time-ordered correlation functions, as p(2) -> 0. In particular, we study a form factor F(s, t, u) obtained from a four-point function of identical scalar primary operators. We show that F is crossing symmetric, analytic and it has a partial wave expansion. We illustrate our findings in the 3d Ising model, perturbative fixed points and holographic CFTs.
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Name
JHEP11(2020)139.pdf
Type
Publisher's version
Access type
openaccess
License Condition
CC BY
Size
1.37 MB
Format
Adobe PDF
Checksum (MD5)
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