Strong 2020 Public Lecture Series
The LIGO Virgo Consortium achieved the first detection of gravitational waves. A century after the fundamental predictions of Einstein, we report the first direct observations of binary black hole systems merging to form single black holes. Our observations provide unique access to the properties of space-time at extreme curvatures: the strong-field, and high velocity regime. It allows unprecedented tests of general relativity for the nonlinear dynamics of highly disturbed black holes. In 2017 the gravitational waves from the merger of a binary neutron star was observed. This discovery marks the start of multi-messenger astronomy and the aftermath of this merger was studied by using 70 observatories on seven continents and in space, across the electromagnetic spectrum.
The scientific impact of the recent detections on nuclear and particle physics will be explained. In addition key technological aspects will be addressed, such as the interferometric detection principle, optics, and sensors and actuators. The presentation will close with a discussion of the largest challenges in the field, including plans for a detector in space (LISA), and Einstein Telescope, an underground observatory for gravitational waves science.
Almost all of the mass of the visible universe has long been known to reside in protons and neutrons, the constituents of nuclei that make up visible matter. Yet what lies at the core of this matter? How well do we understand the physics that shapes it, and provides the foundations for the world around us?
In the late 1960s the MIT-SLAC experiments offered the first hints to address these questions, by scattering high-energy electrons from deep inside protons. This opened the way to experimental investigations of nucleon structure and provided the first essential evidence of pointlike constituents within the nucleons, which were identified with the quarks predicted by the newly-developed Quark Model of the nucleon. We have come a long way since then, but the picture of the nucleon is still far from complete: much remains to be understood about the internal dynamics of the nucleon and its description in terms of quarks and gluons, which are governed by the underlying theory of Quantum Chromodynamics (QCD).
In this public lecture we will discuss some key aspects of “nucleon tomography”, namely the investigation of the structure of nucleons through Quantum Chromodynamics (QCD), focusing on the strong interplay between theory and experiments and presenting the existing and future machines that will provide groundbreaking information to help us dig into the mysteries at the core of matter.
Researchers @School 2022 digital edition
100 anni di relatività generale: la visione di Einstein del nostro Universo - Pia Astone (INFN-Roma 1)
Pia Astone è Prima ricercatrice INFN ed è docente di Fisica II presso il Dipartimento di Chimica e Fisica presso la Facoltà Farmacia della Sapienza Università di Roma. Membro collaborazione LIGO/Virgo, di cui è stata coordinatrice scientifica negli anni 2012-2014 e ad oggi chair del gruppo Virgo, Roma Sapienza. E’ Coordinatrice delle attività di divulgazione dell’INFN sezione di Roma e coordinatrice nazionale INFN per il progetto Lab2Go.
MISURA DI SPETTRI NEUTRONICI CON TECNICA DEL TEMPO DI VOLO
Tutor: Pierfrancesco Mastinu
BARILARI Francesco – LS Volta-Fellini (Riccione, RN)
EDONI Alberto – IIS Ferrari (Este, PD)
LOMBARDI Antonio – LS Fermi (Padova, PD)
RESTELLI Davide – LS Grassi (Saronno, VA)
Tutors: Diego Giora, Alessandro Minarello, Michele Lollo, Enzo Bisiato
BONFANTI Francesco – LS Bagatta (Desenzano sul Garda, BS)
GIGLIOTTI Alexander – IIS Rolando da Piazzola (Piazzola sul Brenta, PD)
STEFANI Marco – ITIS Marconi (Padova, PD)
LAVORO E SICUREZZA
Tutor: Sergio Sartor
EDONI Federico – IIS Ferrari (Este, PD)
GASPARI Edoardo – IIS Cattaneo-Dall’Aglio (Castelnovo né Monti, RE)
PORTA Pietro – IIS Gonzaga (Castiglione delle Stiviere, MN
GGI Tea Brekas is a new web-seminars series on the Theory of Fundamental Interactions, covering a wide spectrum of arguments.
The aimis to discuss th eopen questions in Fundamental physics while offering to researches and pH.D. students a simple intrudaction to some of the hottest topics in the field.
Marc Kamionkowski (Johns Hopkins University)
"Is the ΛCDM model in trouble?"
Marc Kamionkowski is a theoretical physicist. His research is in cosmology, astrophysics, and elementary-particle theory. His main focus has been on particle dark matter, inflation and the cosmic microwave background, and cosmic acceleration. He also worked on neutrino and nuclear physics and astrophysics, large-scale-structure and galaxy formation, intrinsic galaxy alignments and gravitational lensing, gravitational waves, phase transitions in the early Universe, alternative-gravity theories, the first stars and the epoch of reionization, and a bit in stellar and high-energy astrophysics.
We’ve known since the late 1920s that the Universe is expanding. However, the expansion rate currently inferred from measurements of the cosmic microwave background now disagrees with that obtained from supernova measurements. Over the past few years, theorists have been exploring the possibility that this Hubble tension is explained by some new “early dark energy”: a new component of matter that may have been dynamically important several hundred thousand years after the Big Bang.
All the information and materials about the seminars are available on the
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