Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-01-30
Phys.Rev.D78:034027,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages. Journal version. Defined an explicit thrust axis operator; clarified meaning of a delta function operator
Scientific paper
10.1103/PhysRevD.78.034027
We present a new analysis of two-jet event shape distributions in soft collinear effective theory. Extending previous results, we observe that a large class of such distributions can be expressed in terms of vacuum matrix elements of operators in the effective theory. We match these matrix elements to the full theory in the two-jet limit without assuming factorization of the complete set of hadronic final states into independent sums over partonic collinear and soft states. We also briefly discuss the relationship of this approach to diagrammatic factorization in the full theory.
Bauer Christian W.
Fleming Sean
Lee Christopher C.
Sterman George
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