Gauge and Lorentz covariant quark propagator in an arbitrary gluon field |
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| Authors: | Y-H An H Yang Q Wang |
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| Institution: | (1) Department of Physics, Tsinghua University, Beijing 100084, P.R. China , CN;(2) Institute of Theoretical Physics, Academia Sinica, Beijing 100080, P.R. China , CN;(3) Science School, Information Engineering University, Zhengzhou 450001, P.R. China , CN |
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| Abstract: | The quark propagator in the presence of an arbitrary gluon field is calculated gauge and Lorentz covariantly order by order
in terms of powers of the gluon field and its derivatives. The result is independent of the path connecting the ends of the
propagator, and the leading order result coincides with the exact propagator in the trivial case of a vanishing gluon field.
Received: 5 February 2003 / Published online: 23 May 2003 |
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