Tag Archives: Evento scientifico

The appearance of electron neutrinos in a beam of predominantly muon neutrinos is the key signature of new physics searches in accelerator neutrino experiments. The MicroBooNE experiment — the longest operating Liquid Argon Time Projection Chamber (LArTPC) in a neutrino beam — hunts for missing pieces of the short-baseline neutrino puzzle by studying neutrino interactions from both the neutrino beams produced at Fermilab, the Booster Neutrino Beam (BNB) and the Neutrinos at the Main Injector (NuMI) beam. Utilizing innovations in LArTPC simulation, reconstruction, and detector physics studies, MicroBooNE has collected and analyzed the largest neutrino-argon dataset to date. This talk presents MicroBooNE’s first look into the long-standing anomalous excess of electron-like low energy events in the MiniBooNE experiment.

Several significant anomalies are recently observed in the semileptonic decays of mesons, nucleon and nuclei, in particular the apparent violation of the Cabibbo-Kobayashi-Maskawa (CKM) matrix unitarity involving the matrix elements Vud and Vus. In this talk, I will briefly review the major breakthroughs from theory and experiment that lead to such observations, and the future improvements required to bring us even closer to a confirmed discovery of physics beyond the Standard Model (BSM). Join Zoom Meeting https://infn-it.zoom.us/j/89484960989?pwd=Q3QxMkUwcVJMM25zSVFrczlMMFM4QT09 Meeting ID: 894 8496 0989 Passcode: 213792

                                                                     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.