Tag Archives: Evento scientifico

                                                                                                                       Picture taken by Roy J. Glauber and published in nobel prize.org                                 This conference is organized in the framework of the John Templeton Foundation financed project: "Hunt for the "impossible atoms": the quest for a tiny violation of the Pauli Exclusion Principle. Implications for physics, cosmology and philosophy", being the concluding event, and is supported by the Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Roma and by INFN. The main aim of the conference is to discuss the theoretical, philosophical and experimental aspects of the spin-statistics connection and its possible violation & related items (CPT and Lorentz symmetry violation; cosmological implications; identity versus indistinguishable etc.). Expert scientists and philosophers will give lectures on spin-statistics and spin-statistics violation  and on theories beyond the "standard" quantum mechanics, with an overview of hottest topics in these sectors.   Organizers: Catalina Curceanu, LNF-INFN (Chair) Johann Marton, SMI-Vienna (Austria) Edoardo Milotti, Univ. and INFN Trieste (Italy) Kristian Piscicchia, Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Roma (Italy) Alessandro Scordo, LNF-INFN (Italy)    

The sub-GeV mass region of the dark matter is foreseeably to be explored intensively in the next generation of direct detection experiments. Essig and others recently discussed the feasibility of detecting the dark-matter electron recoil using low-noise semiconductor detectors as the active target. With a readout noise level below one electron RMS, the sensitivity allows us to test several theoretical models that account for dark matters with sub-GeV mass. One of the two silicon-based architectures that are capable of reaching such noise level is the DEPFET with Repetitive Non Destructive Readout (RNDR). The prototype of this detector has been developed by the Semiconductor Laboratory of the Max Planck Society, and the readout of a single pixel has successfully reached the expected sub-electron noise level . In this presentation, we will introduce the working concept of the DEPFET-RNDR. Then we will present the new project of DANAE under preparation that plans to apply this type of detector to the direct detection of dark-matter electron recoil.

Several aspects of flavour physics, including the recent experimental “anomalies” in leptonic decays, are critically reviewed. New ideas to improve the accuracy of the theoretical predictions and future developments are discussed.

After reviewing the status of the recent experimental discrepancies in B-physics data, I show how these phenomena can be coherently explained by an extended gauge dynamics which closely mimics the structure of the standard model. A key role is played by a generalisation of the Cabibbo mixing which allows for sizeable effects in charged current quark-lepton transitions, while sufficiently suppressing quark-quark and lepton-lepton FCNC. The model is also consistent with direct searches at high-pT and provides a fully calculable framework to guide the early phase of the B-anomalies and predict correlations with new observables.

I will present an update about the present status of the various anomalies observed in B physics.

The BTF of the DAΦNE accelerator complex, in the Frascati National Laboratory of the INFN, is in operation since 2004 with an average of 200 beam-days and 25 groups/year. The doubling of the beam-line will allow increasing the access capability, as well as hosting long-term experiments in parallel with the test-beam activities. The activities ongoing for the upgrade of the facility are described.

Aim of the meeting: This informal meeting is intended for extensive discussions on phenomenological issues of mutual interest  between the participants: mainly flavor physics, but also axion phenomenology and dark sectors. A certain number of more formal seminars will be open to the general audience. On Wednesday 27/6, 2:30pm in “Aula Salvini” Prof. G. Martinelli (U. La Sapienza) will deliver the General Seminar: “Flavor Physics for Non-Experts: (a Theory) Overview”.  Speakers: Tuesday 26/6, 2.30pm:  Giuliano Panico (IFAE Barcellona) “Flavor and Compositeness”  Wednesday 27/6, 10:00am:  Federico Mescia (Barcellona Univ.) “Present status of B anomalies”  Wednesday 27/6, 11:00am:  Luca Di Luzio (Durham Univ.) “From 321 to 4321: a Cabibbo mechanism for leptoquarks”                                   GENERAL SEMINAR Wednesday June 27, 2:30pm Guido Martinelli (Università di Roma `La Sapienza’) “Flavor Physics for Non-Experts: (a Theory) Overview”  Several aspects of flavour physics, including the recent experimental “anomalies” in leptonic decays, are critically reviewed. New ideas to improve the accuracy of the theoretical predictions and future developments are discussed.

L’INFN e i Laboratori Nazionali di Frascati portano avanti una intensa attività di ricerca tecnologica i cui prodotti, oltre che nella ricerca fondamentale, trovano applicazione in diversi campi di interesse sia sociale che industriale. In questo ciclo di seminari, dedicati ognuno a tecnologie e infrastrutture di interesse per un determinato settore, i LNF vogliono continuare il dialogo aperto con altri Enti, Università, Istituzioni ed Imprese in occasione dell’Open Day Imprese a Giugno 2017.   !CHAOS (Control system based on Higly Abstracted and Open Structure) è una nuova infrastruttura software dedicata al controllo di impianti, applicabile a contesti altamente diversificati. !CHAOS è stato sviluppato ai Laboratori Nazionali di Frascati dell'INFN, sulla base dell'esperienza maturata nel campo del controllo degli acceleratori di particelle, utilizzando tecnologie software di punta mutuate dal mondo delle WEB Applications, dei motori di ricerca e dei Social Media. Coordina A.Stecchi Prossimi Seminari 2018 LNF e le tecnologie per lo Spazio: Laboratori di test e calibrazione – Ottobre 2018 Le tecnologie di magneti e vuoto: infrastrutture e servizi – Dicembre 2018

Precise measurements of the branching ratios (BRs) for the flavor-changing neutral current decays K -> pi nu anti-nu can provide unique constraints on CKM unitarity and, potentially, evidence for new physics. It is important to measure both decay modes, K+ -> pi+ nu anti-nu and KL -> pi0 nu anti-nu, since different new physics models affect the rates for each channel differently. For the charged channel, the NA62 experiment at the CERN SPS is currently collecting data and expects to measure the BR to within 10% by the end of LHC Run 3. For the neutral channel, the BR has never been measured. KOTO, an experiment at J-PARC, should have enough data for the first observation of the decay by 2021. We are designing the KLEVER experiment to measure BR(KL -> pi0 nu anti nu) to ~20% using a high-energy neutral beam at the CERN SPS starting in Run 4. The boost from the high-energy beam facilitates the rejection of background channels such as KL -> pi0 pi0 by detection of the additional photons in the final state. On the other hand, the layout poses particular challenges for the design of the small-angle vetoes, which must reject photons from KL decays escaping through the beam pipe amidst an intense background from soft photons and neutrons in the beam. Background from Lambda -> n pi0 decays in the beam must also be kept under control. Findings from our design studies will be presented, with an emphasis on the challenges faced and …