Tag Archives: Evento scientifico

The design of a primary electron beam facility at CERN will be described. It re-enables the Super Proton Synchrotron (SPS) as an electron accelerator, and leverages the development invested in Compact Linear Collider (CLIC) technology for its injector and as an accelerator research and development infrastructure. This would be a facility relevant for several of the key priorities in the 2020 update of the European Strategy for Particle Physics, such as an electron-positron Higgs factory, accelerator R&D, dark sector physics, and neutrino physics. In addition, it could serve experiments in nuclear physics. The electron beam delivered by this facility would provide access to light dark matter production significantly beyond the targets predicted by a thermal dark matter origin, and for the nature of dark matter particles that are not accessible by direct detection experiments. It would also enable electro-nuclear measurements crucial for precise modelling the energy dependence of neutrino-nucleus interactions, which is needed to precisely measure neutrino oscillations as a function of energy. The facility is a natural next step in the development of X-band high-gradient acceleration technology as pursued within the CLIC collaboration. The facility also allows studies of a number of components and phenomena for a future electron-positron Higgs and electroweak factory as the first stage of a next circular collider at CERN, and its cavities in the SPS would be the same type as foreseen for such a future collider. It’s X-band injector linac would become a facility with multi-GeV drive bunches and truly independent electron witness …

The FASER experiment is a new small and inexpensive experiment that will be placed 500 meters downstream of the ATLAS experiment at the CERN LHC. The experiment will shed light on currently unexplored phenomena, having the potential to make a revolutionary discovery. FASER is designed to capture decays of exotic particles, produced in the very forward region, out of the ATLAS detector acceptance. FASERnu, a recently proposed FASER sub-detector, is designed to detect collider neutrinos for the first time and study their properties. FASER was approved by CERN in 2019, with the FASERnu detector approved at the end of 2019. This seminar will present the physics prospects, the detector design, and the construction progress of FASER. The experiment is on track to be installed by early 2021 and to take data during the LHC Run-3, starting in 2022. Istruzioni per partecipare: La connessione ai seminari online dovrà essere effettuata tramite Vibe. Per partecipare è possibile scegliere tra due modalità: collegarsi tramite il client di Vibe ( *download), inserendo semplicemente il proprio nome e il Meeting ID: 4548020848  (opzione consigliata) Link: https://vibe.ezuce.com/launcher/?meetingId=4548020848 Or by using WebRTC in Chrome or Firefox : https://vibe.ezuce.com/webrtc/?meetingID=4548020848 (*) Versioni richieste: Windows 7 or newer Mac OS 10.8.5 or higher Linux 3-4 years old, version 7 or higher

Proposed more than 40 years ago, axions are still the most compelling solution to the strong CP problem of the Standard Model. More recently their physics case has been considerably sharpened, as well as that of similar axion-like particles (ALPs) that generically emerge in diverse high-energy extensions of the Standard Model, notably string theory. Both axion and ALPs constitute very appealing candidates to the dark matter of the Universe, and they are also invoked as a solution of a number of anomalous astrophysical observations. In addition, particular realizations of these type of models appear linked with inflation, dark radiation and even dark energy. These developments, together with the fact that experimental techniques have recently achieved sensitivity to relevant regions of ALP parameter space, are increasing the interest in the search for these particles. I will review the status of the experimental landscape, as well as near term prospect from ongoing experiments, future projects and new detection ideas in the search for laboratory, dark matter and solar axions and ALPs. Istruzioni per partecipare: La connessione ai seminari online dovrà essere effettuata tramite Vibe. Per partecipare è possibile scegliere tra due modalità: collegarsi tramite il client di Vibe ( *download), inserendo semplicemente il proprio nome e il Meeting ID: 3784888470  (opzione consigliata) Link: https://vibe.ezuce.com/launcher/?meetingId=3784888470Or by using WebRTC in Chrome or Firefox : https://vibe.ezuce.com/webrtc/?meetingID=3784888470   (*) Versioni richieste: Windows 7 or newer Mac OS 10.8.5 or higher Linux 3-4 years old, version 7 or higher

The 8th Low Emittance Rings Workshop, supported by the ARIES project, should have been held in Frascati, INFN-LNF in March 2020 but, due to the Covid-19 desease emergency, it has been postponed in October 2020 from 26 to 30.  The Workshop will be held remotely, both for speakers and participants. The connection will be provided by the Cisco Webex platform.                                                                                                The Cisco Webex link to join the Virtual Workshop Room has been sent by email to all registrants. During the Workshop, at Webex log in: * switch microphone and camera off – switch them on only when presenting your talk; * share your screen, select your presentation and go full screen mode. Unshare at the end of your talk; * respect the time allotted to your talk (25′); * “raise hand” to ask questions during the discussion (select your name in the participants’ list on Webex and click on the “hand” icon). The goal of the workshop is to bring together experts from the scientific communities working on low emittance lepton rings. The workshop is sponsored by the RULE network under the ARIES European project and includes light source storage rings, linear collider damping rings and future e+/e- circular colliders. The theme will be beam dynamics …

I coordinatori delle 5 linee scientifiche dei LNF presentano una breve panoramica sulle attività principali previste per il prossimo anno. Gli interventi potranno essere seguiti solo in modalità remota tramite piattaforma Webex.  

The ultra-rare flavour-changing neutral-current decay K+ -> pi+ nu nu-bar offers a uniquely sensitive probe in the search for new physics. The NA62 experiment at CERN was primarily designed to achieve a precision measurement of this decay and took data from 2015 to 2018, significantly improving experimental knowledge of the branching ratio. Recently, the experiment submitted for publication final results from data taken in 2017 and released the results of a preliminary analysis of the 2018 data set. In this seminar, these results will be reviewed, and the prospects for results from NA62’s second run, scheduled from 2021 to 2024, will be discussed.   Istruzioni per partecipare: La connessione ai seminari online dovrà essere effettuata tramite Vibe. Per partecipare è possibile scegliere tra due modalità: ·collegarsi tramite il client di Vibe ( *download), inserendo semplicemente il proprio nome e il Meeting ID: 4985992911  (opzione consigliata)   Link: https://vibe.ezuce.com/launcher/?meetingId=4985992911    Or by using WebRTC in Chrome or Firefox :   https://vibe.ezuce.com/webrtc/?meetingID=4985992911 (*) Versioni richieste:   Windows 7 or newer Mac OS 10.8.5 or higher Linux 3-4 years old, version 7 or higher

  This talk will review what we know (and we do not know) about the sources and mechanisms that generate very high energy particles in the Galaxy and in the Universe. These sources can be studied with a multi-messenger (cosmic rays, gamma rays, neutrinos and gravitational waves) observations. Recent studies have given very important information, but many fundamental question remain open.   Istruzioni per partecipare: La connessione ai seminari online dovrà essere effettuata tramite Vibe. Per partecipare è possibile scegliere tra due modalità: ·collegarsi tramite il client di Vibe ( *download), inserendo semplicemente il proprio nome e il Meeting ID: 9166270327 (opzione consigliata)   Link: https://vibe.ezuce.com/launcher/?meetingId=9166270327  Or by using WebRTC in Chrome or Firefox :   https://vibe.ezuce.com/webrtc/?meetingID=9166270327 (*) Versioni richieste:   Windows 7 or newer Mac OS 10.8.5 or higher Linux 3-4 years old, version 7 or higher

Despite many decades of experimental and theoretical efforts around the world many aspects of the role gluons play in QCD remains a mystery. While we know gluons are important, we don’t know exactly how the properties of hadrons such as mass and their spin, emerge from their interactions amongst themselves and with quarks. We don’t know exactly exactly exactly how the nuclei are bound together. We don’t know if there is saturated phase of nuclear matter predominantly made of gluons at high energy in all nucleons and nuclei, as is predicted by QCD. A high-energy, high-lumonisity polarized electron-ion collider is proposed to address these compelling unsolved questions in QCD.  On January 19, 2020 the US department of Energy declared the start of the EIC project and that the site would be Brookhaven National Laboratory (BNL) using the already existing Relativistic Heavy Ion Collider (RHIC). The Thomas Jefferson National Laboratory (TJNF or JLab) will be work with BNL closely as equal partner, and both together with the world wide EIC enthusiasts organized under the umbrella of EIC Users Group will realize this facility at the end of the decade. In this talk, I will highlight the exciting science of EIC, and review the current activities underway aimed at realizing the first collisions for physics at the turn of this decade.     Istruzioni per partecipare: La connessione ai seminari online dovrà essere effettuata tramite Vibe. Per partecipare è possibile scegliere tra due modalità: ·collegarsi tramite il client di Vibe ( *download), inserendo semplicemente …