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In this paper, we investigate the Friedmann–Lemaitre–Robertson–Walker cosmological models within the framework of Rastall gravity incorporating particle creation. The modified field equations for Rastall gravity are derived and exact solutions are obtained under various assumptions of the scale factor. The qualitative behavior of our solutions depends on the Rastall coupling parameter Formula: see text. Following Akarsu et al. Ö. Akarsu et al., Rastall gravity extension of the standard [Formula: see text CDM model: Theoretical features and observational constraints, Eur. Phys. J. C 80 (2020) 1050], we have restricted the Rastall coupling parameter Formula: see text to the range Formula: see text at 68% CL from CMB+BAO data. Further, we have discussed the distinct physical behavior of the derived models in detail.
Bishi et al. (Tue,) studied this question.
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