The European Physical Journal C, Volume (84), No (10), Year (2024-10)
Title : ( Two pseudo-Goldstone bosons in the Gildener–Weinberg model )
Authors: Parsa Ghorbani ,File:
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Abstract
In a dimensionless multi-scalar extension of the Standard Model, Gildener and Weinberg assumed that along a flat direction, there is only one classically massless scalar, known as the scalon, which acquires mass through radiative corrections à la Coleman–Weinberg, while all other scalars remain heavy. In this paper, by introducing a toy model with four scalar degrees of freedom we demonstrate the existence of two scalons along a specific flat direction that we con- struct. We present the effective potential for the model and provide the masses of the heavy scalars and two radiatively light pseudo-Goldstone bosons.