# Reheating constraints on mutated hilltop inflation Source: [Reheating constraints on mutated hilltop inflation]() Collection index: [llms.txt]() Data updated: 2025-10-25T06:34:40.773Z Authors: Sudhava Yadav, Dhwani Gangal, K.K. Venkataratnam Published: 2024-01-18T08:54:35.000Z ## Abstract Future research studies of cosmic microwave background polarization seems likely to provide a more improved upper bound of $r \\le 0.03$ on the tensor-to-scalar ratio(r). In our work, we have done the reheating study of mutated hilltop inflation(MHI), a model falling in the broad category of small field inflation. We have parameterized reheating in terms of various parameters like reheating duration $N\_{\\text{rh}}$, reheating temperature $T\_{\\text{rh}}$ and effective equation of state $\\overline{\\omega }\_{\\text{rh}}$ using observationally viable values of scalar power spectrum amplitude $A\_{\\text{s}}$ and scalar spectral index $n\_{\\text{s}}$. In our study, working over a range of $\\overline{\\omega }\_{\\text{rh}}$, we found that the MHI potential is well consistent with combined Planck and BK18 observations for $\\overline{\\omega }\_{\\text{rh}} \> 0$ within a particular range of model's parameter space and the lower values of the model parameter in MHI generate considerably smaller r compared to normal hilltop potential without any incompatibility of $n\_s$ with observational data, making MHI a better choice in accordance to recent and future studies. ## Recorded benchmark results A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage. ## Original sources and implementation [Original paper]() [PDF]()