Fragmentation with a Cut on Thrust: Predictions for B-factories

Jain, Ambar; Procura, Massimiliano; Shotwell, Brian; Waalewijn, Wouter J. (2013). Fragmentation with a Cut on Thrust: Predictions for B-factories. Physical review. D - particles, fields, gravitation, and cosmology, D87(7), 074013. Melville, N.Y.: American Physical Society 10.1103/PhysRevD.87.074013

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When high-energy single-hadron production takes place inside an identified jet, there are important correlations between the fragmentation and phase-space cuts. For example, when one-hadron yields are measured in on-resonance B-factory data, a cut on the thrust event shape T is required to remove the large b-quark contribution. This leads to a dijet final-state restriction for the light-quark fragmentation process. Here, we complete our analysis of unpolarized fragmentation of (light) quarks and gluons to a light hadron h with energy fraction z in e+e−→dijet+h at the center-of-mass energy Q=10.58  GeV. In addition to the next-to-next-to-leading order resummation of the logarithms of 1−T, we include the next-to-leading order nonsingular

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