Revisiting non-perturbative effects in the jet broadenings
Yu. L. Dokshitzer, G. Marchesini, G. P. Salam
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(Q)). The new theoretical treatment greatly improves the consistency of the phenomenology with the notion of the universality of confinement effects in jet shapes.
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