iten
Home » Evento

Tag Archives: Evento scientifico

High precision X-ray measurements

Overview Since their discovery in 1895, the detection of X-rays had a strong impact and various  applications in several fields of science and human life. Impressive efforts have been done to develop new type of detectors and new techniques, aiming to obtain higher precisions both in terms of energy and position. Depending on the applications, Solid State Detectors, Microcalorimeters and various types of Spectrometers provide nowadays the best performances as spectroscopic and imaging detectors. The now reachable few microns and meV precisions open the door towards ground breaking applications in fundamental physics, medical science, astrophysics, cultural heritage and several other fields. The aim of this workshop is to have an overview, from different communities and research fields, of the most recent developments in X-ray detection and their possible impacts in various sectors like, for example, exotic atoms measurements, quantum physics studies, XRF, XES, EXAFS, plasma emission spectroscopy, monochromators, synchrotron radiation, telescopes and space engineering. A special focus will be put on the role played by mosaic crystals of pyrolitic graphite which, thanks to their physical properties, may have promising applications in many of these fields. This workshop is organized in the framework of the VOXES project, supported and financed by the 5th National Scientific Committee of INFN in the framework of the Young Researcher Grant 2015, n. 17367/2015.   Main Topics: X-ray energy detectors X-ray position detectors Spectrometers X-ray optics Graphite based applications X-ray imaging X-rays in astrophysisc X-rays in nuclear physics Cultural heritage applications of X-rays Medical applications Conference ...

Scopri di più »

ICFDT5 – 5th International Conference on Frontier in Diagnostic Technologies

Overview ICFDT is an interdisciplinary conference, jointly organized by INFN and ENEA Frascati laboratories, aimed at bringing together scientists, engineers and also experts from industries. Contributions are welcome from the frontiers of diagnostics in different areas of research: high energy and accelerator physics and technology, nuclear fusion plasmas, space and astrophysics research, medical applications, lasers physics and technology, etc., to discuss common interests in concepts and realization of measurement systems. Special focus of this 5th ICFDT edition will be on proposals/projects/ideas for novel measurement systems with a high degree of reliability and innovation to mark significant progress in the diagnostic techniques for Advanced Accelerators, Innovative Nuclear Fusion Devices, Metamaterials and the Detection of Fast and Ultra-fast Events. The ICFDT5 will have seven special and regular plenary sessions, a satellite meeting and a poster session (see Scientific Programme). Important dates: 18 June 2018  Abstract Submission Deadline 15 July 2018   Abstract Acceptance Notification 31 July 2018   Early Registration Deadline 14 Sept. 2018 Late Registration Deadline 3-5 Oct. 2018 Conference Convened

Scopri di più »

Is quantum theory exact? The quest for the spin-statistics connection violation and related items

                                                                                                                       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)    

Scopri di più »

DANAE – a new experiment for 
direct dark matter detection using 
RNDR DEPFET detectors

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.

Scopri di più »

SeminarIndustriali 2018 – !CHAOS un nuovo framework versatile e scalabile per il controllo e l’acquisizione dati di impianti e reti di dispositivi

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

Scopri di più »

Jet physics at forward-rapidity in heavy-ion collisions

Jet physics plays an essential role in understanding the nuclear structure at short distance and properties of the hot and dense QCD matter in heavy-ion collisions. The forward rapidity in experiments such as LHCb provide a window for furthering these studies in a difference regime of energy and density. In this talk, I will discuss about jet and electroweak boson studies in p+A collisions which can help to provide constraints on parton distributions in large nuclei. I will also discuss jet quenching in the forward direction and their implication on jet tomography of hot QCD matter.

Scopri di più »

KLEVER: An experiment to measure BR(KL -> pi0 nu anti-nu) at the CERN SPS

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 ...

Scopri di più »

Quantum Complex Matter 2018

Quantum Complex Matter Rome – Frascati National Laboratory, June, 11-15 2018 (arrival day: June 10th ; departure day: June 16th)   Chairpersons Antonio Bianconi (RICMASS), Augusto Marcelli (LNF-INFN), Tomo Uemura (Columbia University)   Scientific Advisory Committee Gabriel Aeppli, Piers Coleman, Andrea Cavalleri, Andrei Chubukov, Seamus Davis, Albert Fert, Atushi Fujimori, Philip Kim, Gabi Kotliar, Masatoshi Imada, Yoshihiro Iwasa, Alessandra Lanzara, Sadamichi Maekawa, Giancarlo Strinati, Kees van der Beek, Valerii Vinokur, Xiao Dong Xu, Qikun Xue   International QCM2018 Conference joint with QCM2018 School QCM2018 will highlight recent advances in all major fields in quantum phenomena in complex condensed matter. This is a multi-purpose meeting of activities based on the Frontiers of Condensed Matter Physics (FCMP) lecture courses and selected topics of Superstripes conferences. Invited and leading contributed papers will focus on research sub-fields of correlated electron systems (superconductivity and magnetism, Mott transition, quantum criticality, multi-band Hubbard model, Lifshitz transitions), nano science (graphene, TMDC, QHE, topological and 2-d materials, Fano resonances), spintronics (Skyrmions, itinerant electron magnetism, spin current, magnetic memory), cold atoms (Hubbard Model, Feshbach Resonances, BEC-BCS crossover) and complex systems (Nanoscale phase separation) to promote discussions and collaboration among researchers of different sub-fields. The QCM 2018 conference is integrated with QCM 2018 School with Educational Courses for students and young researchers. The lecture contents of the course will be announced later. All invited speakers and participants are kindly invited and urged to register at the web-site at earliest convenience. The topics of interest, can be found on the web site. Full-text papers ...

Scopri di più »

The quest for dark sectors

Dark sectors are ubiquitous in physics beyond the Standard Model (SM), and may play a role in explaining many of the long-standing problems of the SM such as the existence of dark matter or the electroweak hierarchy problem. By definition, dark sectors are not charged under any of the known forces. Discovering their possible existence is thus challenging. I will describe how a a broad program combining particle, nuclear and atomic physics experiments can effectively probe a large region of the parameter space. I will show how the unique signatures of such physics can already be searched for with existing/planned experiments, including neutrino-proton fixed-target experiments and precision atomic measurements.

Scopri di più »

Study of multiplicity evolution of charge dependent 3 particle correlation to probe jet-medium interaction in small collision systems

We present a unique way to detect the jet-medium interaction in p+Pb collisions at 5.02 TeV using 3 particle correlation (C112) observable constructed with particles from low and intermediate pT (0.5 < pT < 10 GeV/c) region. In case of small collision systems, the intrinsic momentum scale of the low energy jets is comparable to the characteristic scale of the medium and therefore have a larger probability of interaction with the medium. The short range of the 3 particle correlation is dominated by the jet like correlation and has a unique charge dependence as observed in the minimum bias p+Au collisions at the RHIC energy. The similar effect has been observed in EPOS in the lower multiplicity classes of p+Pb collisions where jet fragmentation plays the dominant role. Interestingly, the charge dependence of the C112 gets diminished in the higher multiplicity classes of p+Pb collisions where the jet-medium interplay may have significant contribution. The results from EPOS and AMPT and JEWEL will be presented for both p+Pb and Pb+Pb collisions at the LHC energies. The effectiveness of this observable as a probe to study jet-medium interaction in small collision systems will also be discussed.

Scopri di più »