Season 12 Episode 5 PhD Seminar

Wednesday 2 Apr 2025, 18:15 → 19:30 Europe/Rome

Aula Conversi (VEF) and Zoom

55th meeting of physics PhD seminar series

https://uniroma1.zoom.us/

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You can submit abstracts using the following link:

https://forms.gle/FAKjaQMUoy3ZwHEY9

18:15 → 18:35 An argentinian guide to inflation

Nowadays, more robust theories suggest that a period known as inflation occurred in the first fractions of a second after the Big Bang. The inflationary period has not yet been confirmed by experiments, but it should have left an imprint on the Cosmic Microwave Background, the oldest light we can observe. We may finally be able to detect this signal through the QUBIC experiment.

Speaker: Mr Ivan Queirolo

An argentinian guide to understand inflation.pptx

18:35 → 18:45 Dicussion

18:45 → 19:00 Coffee break

19:00 → 19:20 The low energy excess in dark matter and neutrino experiments

Sub-GeV dark matter and low energy neutrino-nucleus scattering experiments require extremely low energy thresholds and minimal background levels. While an extensive research is being carried out to push the sensitivity of particle detectors, an unknown type of background affects basically all low-threshold experiments in the field. This background has an energy spectrum that sharply rises at low energy, precisely in the signal region, and a complete understanding of its origin(s) is still an open question.
In this talk I will investigate this “low energy excess”, focusing on its features and possible explanations.

Speaker: Matteo Cappelli

PhDSeminar_Cappelli.pdf

19:20 → 19:30 Discussion