Speaker
Description
We investigate exclusive dilepton production in proton-proton colli-
sions at the Large Hadron Collider (LHC) via two-photon interactions
as a means to probe the internal structure of the proton, particularly its
electromagnetic charge radius. Our theoretical framework enables calcu-
lations in both momentum space and impact parameter space, providing
control over the collision geometry and access to a wide kinematic range.
By comparing model predictions using dipole and Gaussian electromag-
netic form factors with experimental cross-section data at center-of-mass
energies of 7 TeV and 13 TeV, we assess the model’s ability to describe
photon-photon interaction processes. The results show that the dipole
form factor offers a better agreement with the data, providing valuable
insights into the spatial charge distribution within the proton. Also, the
impact parameter space approach provide full geometrical control over
the collision, then the process is purely QED, it enables a precise deter-
mination of the proton radius.
