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W2076914971 endingPage "86" @default.
W2076914971 startingPage "72" @default.
W2076914971 abstract "It is well accepted that dealing with the Gribov ambiguity has a major impact on correlation functions in gauge-fixed Yang-Mills theories, in particular in the low momentum regime where standard perturbation theory based on the Faddeev-Popov approach fails. Recent results, derived from functional tools (Dyson-Schwinger equations or exact RG) or the effective Gribov-Zwanziger action method, pointed towards e.g. gauge boson correlation functions that are not compatible with the properties of observable degrees of freedom. Although such an observation is a welcome feature for gauge theories exhibiting confinement, it would be a discomfort for gauge theories supplemented with Higgs fields, cfr. the experimental success of the electroweak model based on a SU(2) x U(1) gauge group. The purpose of this short note is to assure that the effective action resolution to the Gribov ambiguity reduces to the standard Faddeev-Popov method in the perturbative regime of sufficiently small coupling/large Higgs condensate, thereby not compromising the physical particle spectrum of massive gauge bosons and a massless photon for the SU(2) x U(1) gauge-Higgs model. The closer the theory gets to the limit of vanishing Higgs condensate, the more the Gribov problem resurfaces with all its consequences. We give some speculations w.r.t. the Fradkin-Shenker insights about the phase diagram." @default.
W2076914971 created "2016-06-24" @default.
W2076914971 creator A5002436059 @default.
W2076914971 creator A5010926739 @default.
W2076914971 creator A5018597897 @default.
W2076914971 creator A5035082428 @default.
W2076914971 creator A5041372856 @default.
W2076914971 creator A5081451454 @default.
W2076914971 date "2014-04-01" @default.
W2076914971 modified "2023-10-17" @default.
W2076914971 title "The (IR-)relevance of the Gribov ambiguity in <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML altimg=si12.gif display=inline overflow=scroll><mml:mi>S</mml:mi><mml:mi>U</mml:mi><mml:mrow><mml:mo>(</mml:mo><mml:mn>2</mml:mn><mml:mo>)</mml:mo></mml:mrow><mml:mo>×</mml:mo><mml:mi>U</mml:mi><mml:mrow><mml:mo>(</mml:mo><mml:mn>1</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math> gauge theories with fundamental Higgs matter" @default.
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W2076914971 doi "https://doi.org/10.1016/j.aop.2014.01.014" @default.
W2076914971 hasPublicationYear "2014" @default.
W2076914971 type Work @default.
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