On Effective Charges, Event shapes and the size of Power Corrections

Details On Effective Charges, Event shapes and the size of Power Corrections On Effective Charges, Event shapes and the size of Power Corrections

2006-11-13

arxiv.org/abs/hep-ph/0611169v1

ECONFC0605151:0012,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 7 figures. Talk given at the IPM-LPH06 School and Conference, Tehran, Iran, May 2006

Scientific paper

We introduce and motivate the method of effective chsrges, and consider how to implement an all-orders resummation of large kinematical logarithms in this formalism. Fits for QCD \Lambda and power corrections are performed for the e+e- event shape observables 1-thrust and heavy jet mass, and somewhat smaller power corrections are found than in the usual approach employing the ``physical scale'' choice.

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