We propose a prescription for making off-shell and expanding the S-matrix elements that corresponds to a non-abelian gauge invariant tachyon action with arbitrary mass *m*. We apply this proposal for the S-matrix element of four tachyons and for the S-matrix element of two tachyons and two gauge fields, in both... Show more

July 24, 2003

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S-matrix elements and off-shell tachyon action with non-abelian gauge symmetry

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