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Explore the theoretical framework for detecting and analyzing oscillatory patterns in cosmological data that could reveal evidence of particle physics processes during cosmic inflation in this 16-minute conference talk. Learn about the cosmological collider paradigm, which proposes that the early universe acted as a natural particle accelerator, creating detectable signatures in the cosmic microwave background and large-scale structure. Discover the mathematical techniques and observational strategies needed to reconstruct these "wiggly" oscillatory features from cosmological datasets. Examine how these signatures could provide unprecedented insights into high-energy physics beyond the reach of terrestrial experiments, potentially revealing new particles and interactions that existed during the inflationary epoch. Understand the challenges involved in distinguishing genuine cosmological collider signals from other sources of oscillatory patterns in cosmological observations, and review the current theoretical predictions and future observational prospects for detecting these primordial signatures.
