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On relation between unitary gauge and gauge given by $ξ$-limiting process

T. Kiyan·T. Maekawa·M. Masuda·H. Taira
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Abstract

It is shown that in general the gauge given by the limit of $ξ\to 0$ in $R_ξ$ gauge does not necessarily agree with the unitary gauge by examining the symmetry breaking of two steps from ${\rm SU(3) \otimes U(1)}_N$ to ${\rm SU(2) \otimes U(1)}_Y$ and then to ${\rm U(1)}_{em}$.

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T. Kiyan, T. Maekawa, M. Masuda, H. Taira. 2002-11-05. On relation between unitary gauge and gauge given by $ξ$-limiting process. https://arxiv.org/abs/hep-ph/0211048

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