Tag Archives: Evento scientifico

                                                                        Overview The aim of the symposium is to discuss future perspectives in exotic atoms research and related radiation detectors, as tools for fundamental physics studies. Both, technological new developments and challenges, including SDD, HPGe and Cd(Zn)Te detectors, as well as ultra-high precision spectrometers, and physics cases going from the strong interaction at low energy, the neutron stars equation of state, dark matter issues and quantum mechanics investigations, such as the possible violation of the Pauli Exclusion Principle and dynamical collapse models, will be addressed. The symposium is supported by the Foundational Questions Institute, FQXi (FQXi-RFP-CPW-2008 and FQXi-MGA-2102). Credit image: Shutterstock Symposium Chairs: C. Curceanu, Laboratori Nazionali di Frascati, INFN, Italy A. Scordo, Laboratori Nazionali di Frascati, INFN, Italy  (Co-chair) Local Organizing Committee: M. Miliucci, INFN-LNF F. Napolitano, INFN-LNF D. Sirghi, INFN-LNF F. Sirghi, INFN-LNF A. Tamborrino Orsini (secretariat)

In the last thirty years, participation of Latin American Physics in Subnuclear research has grown. In the Great Caribbean Region, the development of Mexico and Colombia is now expanding to Central America and Dominican Republic. The present situation and the programs of development open perspectives of collaboration for DAΦNE. Some, on training of young physicists, recently discussed in a Symposium on Postpandemic Latin American Science, have prompted this presentation. They will be presented together with a new ambitious project of having in the region a second Latin American synchrotron.

The structure-function relationship is the basis of quantitative analysis of living organisms whose fundamental unit is a cell. Cellular structural and functional complexity is a challenge to our understanding of responses to various environmental changes affecting cells. Electrical and electromagnetic interactions with cells are particularly poorly understood. I will discuss recent experiments performed in parallel with computational modelling aimed to develop an integrated model of the cell as a bioelectric circuit. I will summarize key bio-electric properties of the cell as a whole and its major components, which will allow to reverse engineer the underlying bio-electrodynamic design principles. While much is known about the electric properties of cell membranes, explorations of the cytoskeleton, are still nebulous. Key cytoskeleton components, actin filaments and microtubules, play essential roles in cell motility, mitosis, cell differentiation, transport and signalling. Their elementary protein building blocks self-assemble into cell-spanning filaments, and are strongly affected by temperature, ionic concentrations, pH and other factors. These factors are involved in cellular structure formation and significantly affect cellular responses to electric and EM fields. My ultimate objective is to uncover an electrodynamic design blueprint for eukaryotic cells accounting for these factors, both generically and in comparison between normal and cancer cells. While cancer cells exhibit major changes in their electro-chemical properties compared to normal cells, this property is yet to be substantially exploited for therapeutic applications, although some promising advances have recently been made and I’ll discuss them in this talk. This work is intended to unveil a new paradigm …

The investigation of the strong interaction between different hadron pairs is one of the most fundamental problems in nuclear physics. The interaction of nucleons with kaons has a dominant role in the description of low-energy QCD with strangeness degrees of freedom, in a regime where chiral symmetry breaking is dominant. Theoretical models for the kaon-nucleon interaction need to take into account several physics processes that arise from the underlying strong interaction leading to the formation of resonances and bound states. The description of such interactions is crucial to describe the evolution and the properties of matter under extreme conditions. Our experimental knowledge on hadron-hadron interactions is based mostly on scattering data and lacks precision in the strangeness sector. In the study of the antikaon-nucleon interaction, the kaonic hydrogen studies delivered the most precise measurement at the interaction threshold, and recently ALICE femtoscopic measurements of the antikaon-proton correlation function provided unprecedented constraints above threshold. However in order to pin down the full isospin dependence of the antikaon-nucleon interaction, new measurements are required. To this end, two complementary approaches are being carried on at the LNF: the measurement of the kaonic deuterium X-ray lines by SIDDHARRTA-2 and new femtoscopic studies of kaon-deuteron correlations by ALICE, which will constitute a strong test for the state-of-the art theoretical models. The measurement of the kaon-deuteron correlation function could also deliver additional information on the formation time of (anti)deuterons in hadron-hadron collisions. Moreover, the femtoscopy method can be extended by using the formalism of multivariate cumulants …

The next INFN – MAC will be held in hybrid format at LNF-INFN, Via Enrico Fermi, 54 – Frascati (Italy).

The EuPRAXIA@SPARC_LAB TDR Review Committee will be held at the INFN-LNF (Frascati) on 26-27 October 2021 in a hybrid format (onsite and remotely). At the moment, a maximum of 40 people can attend onsite in the B. Touschek Auditorium. The connection will be provided by the Zoom platform. The Zoom link to join remotely will be sent by email to registered participants only. Participants in the Meeting are invited to register via web using the online registration form. REGISTRATION DEADLINE: 15 October 2021  

Massive neutrinos could be Majorana particles, identical to their own antiparticles. The only practical way of finding out if this possibility has been realised by Nature, is observing a rare nuclear process, called neutrinoless double beta decay (bb0nu). The best experiments of the field have established that the lifetime of bb0nu is longer than 10^26 years and current data suggest that at least two orders of magnitude more may be needed to observe a signal. This means  that the next generation of experiments will need exposures in the range of tens of ton year, and even more crucially, background rates approaching to zero.   In this talk I will present the NEXT program for bb0nu searches.  I will review the current status of the experiment and will describe the R&D leading to future NEXT apparatus, with target masses in the ton range, which could be operating in the second half of this decade. I will also discuss how NEXT can implement a unique signal, observing, in (delayed) coincidence, the two electrons and the Ba2+ dication produced in the decay Xe-136 -> Ba2+-136 + 2e (+ 2nu). The NEXT-BOLD project, funded with an ERC Synergy grant is developing the R&D needed to boldly explore the Majorana Landscape.   Join Zoom Meeting https://infn-it.zoom.us/j/89266806966?pwd=UlFuZ2w1SjBRSkhlSjEzdWJHaXZqQT09   Meeting ID: 892 6680 6966 Passcode: 843454  

We study special quantum field theories with additional spacetime symmetries, namely conformal symmetry and extended supersymmetry. After inserting an extended probe, represented by a Wilson loop,  we study the residual symmetry pattern and we compute correlation functions of local operators in presence of the Wilson loop. We exploit special tools of superconformal theories, such as supersymmetric localization and conformal defect analysis. and we obtain exact results for special classes of observables.   Join Zoom Meeting https://infn-it.zoom.us/j/91902460259?pwd=T0hpK0IvbmhFTElCZnVTeUw2S045Zz09 Meeting ID: 919 0246 0259 Passcode: 2bRbxK