From screening to confinement in a Higgs-like model

Patricio Gaete, Euro Spallucci

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We investigate a recently proposed Higgs-like model [G. Gabadadze, R.A. Rosen, arXiv:0811.4423 [hep-th]], in the framework of a gauge-invariant but path-dependent variables formalism. We compute the static potential between test charges in a condensate of scalars and fermions. In the case of charged massive scalar we recover the screening potential. On the other hand, in the Higgs case, with a "tachyonic" mass term and a quartic potential in the Lagrangian, unexpected features are found. It is observed that the interaction energy is the sum of an effective-Yukawa and a linear potential, leading to the confinement of static charges. © 2009 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)145-149
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
DOIs
Publication statusPublished - 4 May 2009

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