How to Measure the $Q\overline{Q}$ Potential in a Light-Front Calculation

Details How to Measure the $Q\overline{Q}$ Potential in a Light-Front Calculation How to Measure the $Q\overline{Q}$ Potential in a Light-Front Calculation

1994-10-04

arxiv.org/abs/hep-ph/9410219v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, LATEX

Scientific paper

A scheme is developed which shows how one would, given a light-front Hamiltonian for QCD, extract the $Q\overline{Q}$ potential, i.e. the quantity which corresponds to the potential between two infinitely heavy quarks in a rest frame, from a light-front calculation. The resulting potential will in general depend on the direction along which the infinitely heavy sources are separated and thus provides a direct probe of violations of rotational invariance in a physical observable. Furthermore, easy comparison to data from $c\overline{c}$ and $b\overline{b}$ spectroscopy and to lattice data is possible. The scheme may thus be very helpful in constructing a light-front Hamiltonian through an iterative procedure.

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