# RIKEN Lunch Seminar

## "Exclusive $\rho$ meson production in $eA$ collisions: collinear factorization and the CGC"

#### Presented by Renaud Boussarie, BNL

Thursday, November 15, 2018, 12:00 pm — Building 510, Room 2-160

We will focus on the theoretical description of exclusive ρ meson production in eA collisions, using a hybrid factorization scheme which involves Balitsky's shockwave description of the Color Glass Condensate in the t channel, and Distribution Amplitudes (DAs) in the s channel. We will first give a quick introduction to the shockwave framework and to collinear factorization up to twist 3 for DAs, then we will apply these framweworks to the production of a longitudinal meson at NLO accuracy, and to the production of a transverse meson at twist 3 accuracy. We will insist on the experimental applications, and on several theoretical questions raised by our results: the dilute BFKL limit at NLO for diffraction, and collinear factorization breaking at twist 3.

Hosted by: Yuta Kikuchi

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