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8 papers · 2 filters
Particle Production of Vector Fields: Scale Invariance is Attractive
Konstantinos Dimopoulos, Jacques M. Wagstaff
In a model of an Abelian vector boson with a Maxwell kinetic term and non-negative mass-squared it is demonstrated that, under fairly general conditions during inflation, a scale-i…
The gravitino problem in supersymmetric warm inflation
Juan C. Bueno Sanchez, Mar Bastero-Gil, Arjun Berera +2
The warm inflation paradigm considers the continuous production of radiation during inflation due to dissipative effects. In its strong dissipation limit, warm inflation gives way…
Heavy quarkonium: progress, puzzles, and opportunities
N. Brambilla, S. Eidelman, B. K. Heltsley +64
A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experime…
Baryomorphosis: Relating the Baryon Asymmetry to the "WIMP Miracle"
John McDonald
We present a generic framework, "baryomorphosis", which modifies the baryon asymmetry to be naturally of the order of a typical thermal relic WIMP density. We consider a simple sca…
A Unitarity-Conserving Higgs Inflation Model
Rose N. Lerner, John McDonald
Scalar field models of inflation based on a large nonminimal coupling to gravity xi, in particular, Higgs inflation, may violate unitarity at an energy scale ~ M_p / xi << M_p. In…
Inflection point inflation within supersymmetry
Kari Enqvist, Anupam Mazumdar, Philip Stephens
We propose to address the fine tuning problem of inflection point inflation by the addition of extra vacuum energy that is present during inflation but disappears afterwards. We sh…