Resummation, Evolution and Factorization REF 2026

Session

Talks VII

21 Oct 2026, 11:30

Santiago de Compostela, Spain

11. Evolution and Gaussian truncation of Small-x TMDs

Florian Cougoulic (Jagiellonian University)

21/10/2026, 11:30

The high-energy evolution of operators composed of Wilson lines (WLs) and their derivatives can be obtained by solving the JIMWLK equation. However, for the dipole operator, more numerically efficient solutions to the BK equation can be used. The BK equation can be derived from the action of the JIMWLK Hamiltonian on the dipole operator when Nc is large.
In Gaussian truncation, one assumes...

15. Entropy production in Deep Inelastic Scattering

Krzysztof Marek Kutak (Polish Academy of Sciences (PL))

21/10/2026, 11:50

Some years ago has been proposed by Kharzeev and Levin that in DIS process one can associate parton distribution of proton with entanglement following from partial trace over unobserved degrees of freedom.
I will discuss various phenomenological results that confirm this proposal.

23. Deep inelastic scattering as a photon shockwave

Tuomas Lappi

21/10/2026, 12:10

We use the light-cone quantization and abelian shockwave scattering picture akin to the standard CGC calculational framework to calculate the next-to-leading order quark-initiated contribution to the standard collinear factorization picture of semi-inclusive and inclusive deep inelastic scattering. In particular we show that treating the external partons as off-shell states removes collinear...

14. Sudakov dynamics in SIDIS at small $x$

Jamal Jalilian-Marian

21/10/2026, 12:30

Single inclusive hadron production in Deep Inelastic Scattering (SIDIS) is one of the most promising processes in which to look for signatures of color glass condensate (CGC), a dense state of gluons in a proton/nucleus that is believed to exist at small $x$. While there have been strong hints of CGC dynamics observed at HERA, RHIC and the LHC, an unambiguous interpretation has eluded the...

16. Unified Resummation of Soft Gluon Radiation in Heavy Meson Pair Production in eA and pA Collisions

Yu Shi (Ecole Polytechnique, CNRS; Shandong University)

21/10/2026, 12:50

We develop a unified resummation framework for heavy-meson pair photoproduction that treats soft-gluon radiation in a massive scheme for $|q|\lesssim m_Q$ while smoothly recovering the massless limit for $m_Q\ll |q|$, where $q$ denotes the transverse momentum of the pair and $m_Q$ is the heavy-quark mass. The framework therefore provides a consistent description of the entire correlation...