Rapidity gap dynamics: color fluctuations vs knockout mechanism

15 Nov 2022, 15:05
WG4: Small-x and Diffraction WG4: Small-x and Diffraction


Prof. Mark Strikman (Penn State University)


It is explained that the Good – Walker model of diffraction is viable only for small t which are parametrically smaller than the inverse square of the nucleon radius. Example of J/\psi production in inelastic rapidity gap kinematics is considered and it is argues that the knockout mechanism becomes important/ dominates already at -t ~ 0.5 GeV^2. Restrictions on the distribution of gluons in nucleons from the MPI phenomenology are also considered.

Primary author

Prof. Mark Strikman (Penn State University)


Prof. Stastocell Stastocell Stasto (Penn State University) Prof. Boris Blok (Technion University) Mr. Wanchen Li (Penn State University)

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