This seminar will be broadcast via zoom. You can join using the URL https://bnl.zoomgov.com/j/1618286847?pwd=N20xUlNMYjhJVThoQkp5TktJdmQ5dz09.

Nuclear Physics Seminars at BNL

The CSS Hamiltonian: high energy evolution of rapidity dependent observables

by Alexander Kovner (UConn)

→ US/Eastern
Small Seminar Room ( https://bnl.zoomgov.com/j/1618286847?pwd=N20xUlNMYjhJVThoQkp5TktJdmQ5dz09)

Small Seminar Room

https://bnl.zoomgov.com/j/1618286847?pwd=N20xUlNMYjhJVThoQkp5TktJdmQ5dz09
Description
We consider evolution of observables which depend on a small but fixed value of longitudinal momentum fraction 

x, to high rapidity, such that η>ln1/x. We show that this evolution is not given by the JIMWLK (or BK) equation. We derive the evolution Hamiltonian - HCSS−JIMWLK​ which generates this evolution in the cases of dilute and dense projectile wave function. The two limits yield identical results for HCSS−JIMWLK​. We show that the resulting evolution for the gluon TMD is identical to the (double logarithmic) perturbative Collins-Soper-Sterman evolution equation in the longitudinal resolution parameter at a fixed and very large transverse resolution.

Organised by

Yacine Mehtar-Tani