FI: THE QCD AXION AND OTHER GEARS 
 ELENCO COMPLETO 

DATA: 18-10-2017

SEZIONE DI FIRENZE
Seminario di Andrea Tesi: Abstract: In this talk I will briefly introduce the QCD axion, its behavior as cold Dark Matter candidate, and the existing experimental probes. Later, motivated by the foreseen progress in axion detection experiments, I will focus on a model where the axion can have an exponentially large coupling to photons, relying on the "clockwork" mechanism. I will comment on the theoretical motivations of such mechanism and analyze the resulting axion phenomenology. As a bonus, the model predicts a large number of pseudo-scalars which can be light and observable at the LHC. In the last part of the talk I will focus on the cosmological implication of long-lived topological defects originating from the rich structure of the model, with an emphasis on their contribution to the axion dark matter abundance and on a possible upper bound on the scale of new physics.


 SITO COLLEGATO 

 EVENTI RECENTI 
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05-12-2019: A scuola di radioattivita'
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04-12-2019: Nuclei per l'ambiente
04-12-2019: A. Melchiorri - A crisis in lalalambda land?
02-12-2019: MariX: Conceptual Design Report of a Multi-disciplinary Advanced Research Infrastructure for the generation and application of X-rays
28-11-2019: Quantum Optical Control of Levitated Solids: a novel probe for the gravity-quantum interface

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