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arXiv · 2607.21064

New generalization of the Barboza-Alcaniz parametrization of Dark energy

Shahab Shahidi
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Abstract

A generalization of the Barboza-Alcaniz parametrization of dark energy is proposed. This is a three-parameter model which can resolve the shortcomings of the Barboza-Alcaniz behavior at future times. We show that cosmological data favor the new parametrization over both the Barboza-Alcaniz model and $\Lambda$CDM. We also consider the cosmological implications of the model and show that the qualitative behavior mimics to the original Barboza-Alcaniz model, with a slightly smaller acceleration rate.

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Shahab Shahidi. 2026-07-23. New generalization of the Barboza-Alcaniz parametrization of Dark energy. https://arxiv.org/abs/2607.21064

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