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hep-ph2026
Irreducible Graviton Floor from Reheating
James M. Cline, Yong Xu
Inflaton decay inevitably emits gravitons through bremsstrahlung during reheating. We show that the soft part of this emission amplitude, fixed by Weinberg's soft-graviton theorem,…
hep-th2026
Pathologies of dimension-zero scalar fields
James M. Cline, Anamaria Hell
It has been claimed in a series of papers that scalar fields with a fourth-order Lagrangian can solve the cosmological constant problem by canceling the loop contri…