Journal of High Energy Physics (Aug 2018)

Conformal spacelike-timelike correspondence in QCD

  • A. H. Mueller

DOI
https://doi.org/10.1007/JHEP08(2018)139
Journal volume & issue
Vol. 2018, no. 8
pp. 1 – 21

Abstract

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Abstract This paper is a study of a spacelike-timelike conformal correspondence in QCD. When the times at vertices are fixed in an A + = 0 gauge calculation the distribution of gluons in a highly virtual decay have an exact correspondence with the gluons in the lightcone wavefunction of a high energy dipole with the identification of angles in the timelike case and transverse coordinates in the lightcone wavefunction. Divergences show up when the time integrals are done. A procedure for dropping these divergences, analogous to the Gell-Mann Low procedure in QED, allows one to define a conformal QCD, at least through NLO. Possible uses of such a conformal QCD are discussed.

Keywords