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hep-ph2020
Heavy Axion Opportunities at the DUNE Near Detector
Kevin J. Kelly, Soubhik Kumar, Zhen Liu
While the QCD axion is often considered to be necessarily light ( eV), recent work has opened a viable and interesting parameter space for heavy axions, which solve both…
hep-ph2020
The Scalar Chemical Potential in Cosmological Collider Physics
Arushi Bodas, Soubhik Kumar, Raman Sundrum
Non-analyticity in co-moving momenta within the non-Gaussian bispectrum is a distinctive sign of on-shell particle production during inflation, presenting a unique opportunity for…
hep-th2020
Phase Transitions from the Fifth Dimension
Kaustubh Agashe, Peizhi Du, Majid Ekhterachian +2
We study the cosmological transition of 5D warped compactifications, from the high-temperature black-brane phase to the low-temperature Randall-Sundrum I phase. The transition proc…