QCD calculations in the light-cone gauge |
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Authors: | DJ Pritchard WJ Stirling |
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Institution: | Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge CB3 9EW, UK |
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Abstract: | The non-singlet quark structure function is calculated in the leading logarithm approximation in an axial gauge with n2 = 0, the light-cone gauge. The choice n2 = 0 leads to a simple identity for loop integrals involving the extra n · k denominators. We compare the results graph by graph with both Feynman gauge QCD and a scalar gluon theory. The leading diagrams are the same “rainbow” diagrams as for the case of the scalar theory.The techniques are also applied to quark-quark scattering at large transverse momentum. The leading diagrams have the same dressed ladder-form factor structure. |
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