Seminari Concorso PA 02/A2

Monday Jan 8, 2024, 4:00 PM → 6:00 PM Europe/Rome

Aula Conversi (Dip. di Fisica - Edificio G. Marconi)

Oratore: Eleonora Di Valentino (University of Sheffield)

 

Titolo: Unresolved Anomalies and Tensions in the Standard Cosmological Model

 

Abstract:  The standard Lambda Cold Dark Matter cosmological model has been incredibly successful in explaining a wide range of observational data, from the cosmic microwave background radiation to the large-scale structure of the universe. However, recent observations have revealed a number of inconsistencies among the model's key cosmological parameters, which have different levels of statistical significance. These include discrepancies in measurements of the Hubble constant, the S8 tension, and the CMB tension. While some of these inconsistencies could be due to systematic errors, the persistence of such tensions across various probes suggests a potential failure of the canonical LCDM model. I will examine these inconsistencies and discuss possible explanations, including modifications to the standard model, that could potentially alleviate them. 

 

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Oratore: Alessandro Pilloni (Università di Messina)

 

Titolo: Status and prospects for Hadron spectroscopy

 

Abstract: Over the last two decades we have witnessed the discovery of a myriad of new and unexpected hadrons, challenging the old lore that hadrons were either mesons or baryons consisting of 2- or 3-quarks. The future holds more surprises for us, thanks to new-generation experiments, which will provide access to more exotic channels and data than ever before. Understanding the signals and determining the properties of exotic states requires experimentalists and theoreticians to work in tandem. We discuss the future directions for determining the excited spectrum of QCD, and eventually for understanding hadron interactions that are ubiquitous in particle physics.