A flat Friedmann-Robertson-Walker (FRW) cosmological model with perfect fluid has been investigated within the framework of the particle creation mechanism. Perfect fluid isentropic particle creation rate as a function of Hubble parameter has been incorporated. By considering a simple parametrization of Hubble parameter, we discuss the cosmological scenarios through time evolution of the cosmological parameters. We examine the different regimes of the universe by studying the phase transition from decelerated to accelerated era. We also explore the classical stability of model and the state-finder diagnostic for highlighting the departure of the considered cosmological model from the Λ $\Lambda$ Cold Dark Matter ( Λ $\Lambda$ CDM) model.

中文翻译：

---

一个完整的宇宙场景与粒子创建

已经在粒子创建机制的框架内研究了具有完美流体的扁平弗里德曼-罗伯逊-沃克 (FRW) 宇宙学模型。作为哈勃参数的函数的完美流体等熵粒子产生率已被纳入。通过考虑哈勃参数的简单参数化，我们通过宇宙参数的时间演化来讨论宇宙场景。我们通过研究从减速时代到加速时代的相变来研究宇宙的不同状态。我们还探索了模型的经典稳定性和状态查找器诊断，以突出所考虑的宇宙学模型与 Λ$\Lambda$ 冷暗物质 (Λ $\Lambda$ CDM) 模型的偏离。