XXVIII International Workshop on Deep-Inelastic Scattering and Related Subjects

Probing gluon density fluctuations at large momentum transfer |t|

Not scheduled

20m

Virtual (Stony Brook, NY)

Recorded Flash Talk Small-x, Diffraction and Vector Mesons Recorded Flash Talk

Speaker

Arjun Kumar (IIT Delhi)

Description

We study the geometrical fluctuations of proton substructure using incoherent diffractive processes at HERA and show that the gluon density fluctuations inside the proton exists at very small length scales r $\sim$ 0.07 fm. A good description of $J/\psi$ incoherent data at large momentum transfer is obtained on taking into account these fluctuations in event-by-event fluctuations. The transverse profile of gluon density shows a self-similar property i.e. smaller hotspots are found within bigger hotspots of gluon density as we increase the resolution. We investigate these fluctuations in both the saturated and non-saturated dipole model in ep scattering.

Presentation materials

Arjun_DIS2021.mp4

Arjun_DIS2021.pdf

Youtube Link