Theory Seminar: Shohini Bhattacharya

Conference Date
Conference Location

CC L102

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Speaker: Shohini Bhattacharya (BNL)

Title: Manifestation of anomalies in Deeply Virtual Compton Scattering

Abstract: We calculate the one-loop quark box diagrams relevant to polarized and unpolarized Deep Virtual Compton Scattering by introducing an off-forward momentum $l^\mu$ as an infrared regulator. Such a regularization enables us to unravel the poles $1/l^2$ related to the chiral anomaly in the polarized case and the trace anomaly in the unpolarized case. We interpret our results in terms of the relevant Generalized Parton Distributions, and discuss the implications of the poles on the QCD factorization for Compton amplitudes.