Speaker
Description
Precision measurements of semi-inclusive deep-inelastic scattering (SIDIS) cross sections provide critical insights into quark fragmentation and hadronization from a fixed nucleon target. The upcoming "R-SIDIS" experiment at Jefferson Lab Hall C aims to investigate the probability of quark hadronization into a charged pion. A surprising feature of this process is the significant production of high-momentum protons, leading to an unintuitive scenario where a proton appears to be ejected from a proton target. This phenomenon challenges conventional expectations and suggests the presence of underlying QCD mechanisms that involve multiple parton exchange in this fragmentation process. The objective of this study is to explore and characterize this "Knocking a Proton out of a Proton" process, providing new insights into the hadronization mechanisms governing SIDIS.
