Calculating loops without loop calculations: NLO computation of pentaquark correlators

Details Calculating loops without loop calculations: NLO computation of pentaquark correlators Calculating loops without loop calculations: NLO computation of pentaquark correlators

2011-07-04

arxiv.org/abs/1107.0615v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, 1 figure

Scientific paper

We compute next-to-leading order (NLO) perturbative QCD corrections to the correlators of interpolating pentaquark currents. We employ modular techniques in configuration space which saves us from the onus of having to do loop calculations. The modular technique is explained in some detail. We present explicit NLO results for several interpolating pentaquark currents that have been written down in the literature. Our modular approach is easily adapted to the case of NLO corrections to multiquark correlators with an arbitrary number of quarks/antiquarks.

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