Tag Archives: Evento scientifico

                                                                     Overview     Kaonic atoms are special tools for studying low-energy QCD and also aspects of the QED (for higher transitions). During this symposium, we will discuss theoretical cascade calculations in kaonic atoms, their impact (such as kaon mass), and experimental methods to achieve ultra-high precision measurements, aiming at future measurements of kaonic atoms at DAFNE and elsewhere. Symposium Chairs: C. Curceanu, Laboratori Nazionali di Frascati, INFN, Italy A. Scordo, Laboratori Nazionali di Frascati, INFN, Italy D. Sirghi, Laboratori Nazionali di Frascati, INFN, Italy Local Organizing Committee: F. Napolitano, INFN-LNF F. Sgaramella, INFN-LNF F. Sirghi, INFN-LNF A. Tamborrino Orsini (secretariat)

The aim of the mini-symposium is to discuss collapse models proposed as a solution of the measurement problem in quantum mechanics. In particular, gravity-related collapse models will be discussed, together with experimental signatures, such as (but not only)  the spontaneous radiation predicted by these models. The symposium is supported by the Foundational Questions Institute, FQXi (FQXi-RFP-CPW-2008 and FQXi-MGA-2102) and by the John Templeton Foundation (QUBO project, Grant 62099) Symposium Chairs: C. Curceanu, Laboratori Nazionali di Frascati, INFN, Italy Organizing Committee: F. Napolitano, INFN-LNF K. Piscicchia, INFN-LNF/CREF A. Tamborrino Orsini (secretariat)

The quark-gluon dynamics manifests itself in a set of non-perturbative functions  describing all possible  spin-spin and spin-orbit correlations. Single and Dihadron semi-inclusive and hard exclusive production, both in current  and target fragmentation regions, provide a variety of spin and azimuthal angle dependent observables, sensitive to the dynamics of quark-gluon interactions. Studies of transverse momentum distributions of partons are currently driving the upgrades of several existing facilities, and the design and construction of new facilities worldwide. In this talk, we present an overview of the current status and some future measurements of the orbital structure of nucleons at Jefferson Lab.   Join Zoom Meeting https://infn-it.zoom.us/j/86189201616?pwd=SktRTGh1YTVNbEp3WkphV3o2S3Y4Zz09 Meeting ID: 861 8920 1616 Passcode: 554512

After defining the theoretical bases behind the properties of the nucleon form factor, we study the particular case of the Lambda baryon, obtaining for the first time crucial information concerning the ratio $G_E/G_M$, such as determinations for the phase and the presence of space-like zeros.   Join Zoom Meeting https://infn-it.zoom.us/j/2589495113?pwd=RjRVOEhGYTRqYkRuR09uME10bXA0UT09 Meeting ID: 258 949 5113 Passcode: 8GPN4j

On the centenary of the birth of Bruno Touschek, Università Sapienza, the Frascati National Laboratories of INFN and Accademia dei Lincei are organizing a three-day symposium dedicated to his scientific legacy and to the developments that originate from it. Bruno Touschek’s scientific career covered the period between WWII and the seventies of the past century. A world renowned scientist, a man of multifaced personality with interest in many fields, Touschek gave a fundamental contribution to the science of particle accelerators with the realization of the world’s first matter-antimatter collider, as well as relevant contribution to the theory of elementary particles. The Symposium will be broadcasted in streaming on the following institutional channels: Sapienza Università di Roma, December 2nd, 2021, h. 9:00 STREAMING: https://www.youtube.com/channel/UC2uO3CLR3CPcvYW9nEZXThA INFN Laboratori Nazionali di Frascati, December 3rd, 2021, h. 9:45 STREAMING: https://www.youtube.com/user/INFNLNF Accademia Nazionale dei Lincei, December 4th, 2021, h. 9:30 STREAMING:  https://www.lincei.it/live-streaming                           

                                                                        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 …