Abstract
We discuss a class of non-Abelian gauge theories characterized by the gauge condition ..lambda../sub ..mu../W/sub ..mu..//sup a/ + h/sup a/, where ..lambda..sub ..mu../ is an arbitrary four-vector and h/sup a/ denotes a set of arbitrary functions. We show that this class of theories is ghost free. Using the method of gauge variation of proper vertices, we prove that the S-matrix elements are independent of the gauge parameter ..lambda../sub ..mu../. (AIP)
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