Resummation, Evolution, Factorization 2022

Session

Parallel Session B: TMD theory: small x

TMD theory: small x (p1)

2 Nov 2022, 16:50

Conveners

Parallel Session B: TMD theory: small x

• Laurent Favart (Université Libre de Bruxelles)

Parallel Session B: TMD theory: small x

• Hannes Jung (DESY)

43. Relation of TMD gluon density to dipole cross section and the saturation effect in DIS

Gennady Lykasov

02/11/2022, 16:50

The new starting TMD gluon density, obtained within the soft QCD model for pp inelastic collisions at low scales μ0, is connected directly with the dipole cross section of the deep inelastic ep scattering. The saturation of this cross section at large distances between quark and antiquark in the qq ̄ dipole or small values of μ0 is analyzed. The sensitivity of the saturation effect to...

19. Inclusive hadron production in forward pA collisions

Shu-yi Wei (Shandong University)

02/11/2022, 17:40

With the tremendous accomplishments of RHIC and the LHC experiments and the advent of the future Electron-Ion Collider on the horizon, the quest for compelling evidence of the color glass condensate (CGC) has become one of the most aspiring goals in the high energy Quantum Chromodynamics research. Pursuing this question requires developing the precision test of the CGC formalism. By...

32. Power counting to saturation

varun vaidya

02/11/2022, 18:00

Our current understanding of the physics of saturation comes from the Color Glass Condensate that treats the nucleus as a classical source of small x gluons. On the other hand, the physics at large x is understood in terms of a factorization theorem of the PDF and a hard function.
To put the small x regime on the same footing, I ll present a rigorous factorization theorem for small x physics...

46. Transverse momentum broadening from NLL BFKL to all orders in pQCD

Yacine Mehtar-Tani (BNL)

02/11/2022, 18:20

We study, to all orders in perturbative QCD, the universal behavior of the saturation momentum $Q_s(L)$ controlling the transverse momentum distribution of a fast parton propagating through a
dense QCD medium with large size $L$. Due to the double logarithmic nature of the quantum evolution of the saturation momentum, its large $L$ asymptotics is obtained by slightly departing from the double...

61. Infrared renormalon effects in color dipole TMD PDF at small-x.

Nahid Vasim

02/11/2022, 18:40

Perturbation series in quantum field theory are usually divergent even after term by term renormalization. There are resummation procedures to regularize divergence series, for factorially divergent series Borel summation is mostly used. In the small momenta regions, within the window of momentum scale ΛQCD and saturation scale Qs where the running coupling becomes large, infrared renormalons...