Prof. Gavin Salam FRS

Abstract:

We show that taking into account the interplay between perturbative and non-perturbative effects, the power-suppressed shift to the broadening distributions becomes B dependent, and the non-perturbative contribution to the mean values becomes proportional to 1/(Q\sqrt{\as(Q)}). The new theoretical treatment greatly improves the consistency of the phenomenology with the notion of the universality of confinement effects in jet shapes.

Abstract:

We discuss the issue of interplay between perturbative and non-perturbative phenomena for power corrections to e(+)e(-) event shapes.

Abstract:

This talk summarises the current status of the NLL corrections to BFKL physics and discusses the question of small-x factorisation.