Seminario Silvia Celli Title: KM3NeT: physics program and real-time analyses e Alessandro Paiella Title: Kinetic Inductance Detectors for CMB experiments
Seminario della vincitrice del concorso RTT 02/A1 SETTORE SCIENTIFICO-DISCIPLINARE FIS/01 e del vincitore del concorso RTT 02/C1 SETTORE SCIENTIFICO-DISCIPLINARE FIS/05
giovedì 4 aprile alle ore 12:00 in presenza in aula Conversi
Per coloro che fossero impossibilitati ad essere presenti vi è la possibilità di seguire tramite il collegamento zoom dell'aula.
https://uniroma1.zoom.us/j/87038625161?pwd=cEtGRjZNT2VWSlJIWmxaYmxSMDhRZz09
Ore 12.00: Silvia Celli
Title: KM3NeT: physics program and real-time analyses
Abstract: KM3NeT is a multi-site neutrino telescope under construction in the depth of the Mediterranean Sea, consisting of the Cherenkov telescopes ARCA and ORCA, both of which are currently in data- taking. ARCA and ORCA are optimized in complementary energy ranges, allowing for the exploration of neutrinos from MeV to tens of PeV. Among the primary scientific goals of KM3NeT is the observation of cosmic neutrinos and the investigation of their origin. The combination of an extended field of view and a high duty cycle of Cherenkov-based neutrino detectors is fundamental for detecting neutrino candidates. The provision of low-latency alerts can enable a prompt follow- up in the multi-messenger and multi-wavelength domains, that appears crucial for the detection of transient and variable sources whose emission can rapidly fade. A further advantage of online processing consists of the refined pointing directions of neutrino-induced events, particularly in the case of poorly localized triggers such as gravitational waves. This contribution reports on the status of KM3NeT and its multi-messenger program with real-time analyses, a novel system that is being implemented for a fast reconstruction and classification of events.
Ore 12.30: Alessandro Paiella
Title: Kinetic Inductance Detectors for CMB experiments Abstract: The Cosmic Microwave Background (CMB) radiation represents the earliest light that permeated our universe and dates back to approximately 380,000 years after the Big Bang. Today, this radiation appears as a blackbody at 2.725K. The main observables of the CMB include its spectrum, temperature anisotropies, and polarization, all of which contain valuable information about the birth and evolution of the universe. All observables of the CMB are characterized by very weak signals, embedded within astrophysical emissions from our galaxy. For this reason, in past years, increasingly sensitive detectors have been developed that could be easily multiplexed onto large focal planes. Kinetic inductance detectors are low-temperature superconducting resonators with high quality factors, and due to their properties, they meet all the requirements of CMB experiments. This presentation will focus on the development process of kinetic inductance detectors, carried out in our laboratory, for different CMB and CMB-related experiments, such as OLIMPO, MISTRAL, COSMO, and QUIJOTE. The results of the characterization of some detector arrays (in the laboratory, at the telescope and in near space) will be showcased as examples.
