Author:
Arunasalam Suntharan,Ramsey-Musolf Michael J.
Abstract
Abstract
We formulate a procedure to obtain a gauge-invariant tunneling rate at zero temperature using the recently developed tunneling potential approach. This procedure relies on a consistent power counting in gauge coupling and a derivative expansion. The tunneling potential approach, while numerically more efficient than the standard bounce solution method, inherits the gauge-dependence of the latter when naïvely implemented. Using the Abelian Higgs model, we show how to obtain a tunneling rate whose residual gauge-dependence arises solely from the polynomial approximations adopted in the tunneling potential computation.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Cited by
7 articles.
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