Resumming the Light Hemisphere Mass and Narrow Jet Broadening distributions in e^+e^- annihilation
arXiv:hep-ph/0101226 · doi:10.1088/1126-6708/2001/04/029
Abstract
We present predictions of two event shape distributions, the light hemisphere mass and the narrow jet broadening, to next-to-leading logarithmic order. We apply the coherent branching formalism to resum the leading O(alphas^n L^{2n-1}) and next-to-leading O(alphas^n L^{2n-2}) infrared logarithms to all orders in the coupling constant. We include the recently calculated non-logarithmic next-to-leading order contributions. Applying simple power corrections to the resummed result gives good agreement with the available data from LEP.
16 pages, 6 figures, LaTeX with JHEP class, significant revision, version accepted by journal
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