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Tag Archives: Evento scientifico

AxionOrigins: towards a complete theory for the origin of the axion

This is the kickoff meeting of the PRIN 2022K4B58X project “AxionOrigins: towards a complete theory for the origin of the axion” (PI L. Di Luzio) which is a collaborative venture among INFN, University of Padua and Sapienza University of Rome.  The meeting will be held in the Salvini Auditorium (Bldg. 36, access from LNF secondary entrance in Via E. Fermi, 60 – see map).        (Talks by invitation only)You are welcome to download the conference poster here. Aim of the meeting:The aim of the meeting is to establish a collaborative network in association to the PRIN project AxionOrigins. The axion hypothesis, at the interface of particle physics, astrophysics and cosmology, is currently within the reach of experimental verification. However, almost half a century after the conception of the Peccei Quinn (PQ) mechanism, there is not yet a credible theory in which the PQ symmetry arises in a natural way (PQ origin problem). Moreover, the axion solution is notoriously fragile: possible ultraviolet contributions to the axion potential need to be extremely suppressed in order not to spoil the solution of the strong CP problem (PQ quality problem). AxionOrigins aims at identifying extensions of the Standard Model (SM) that incorporate a complete theory of the axion, providing a rationale both for the origin and quality of the PQ symmetry. These include model-building directions that integrate the axion framework with solutions of the SM flavour puzzle based on horizontal gauge symmetries, grand-unified theories and composite dynamics.   Important dates: January    12, 2024 –  Program announcement January …

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Studies and Plans for the Future Circular Collider

This seminar will give an overview of the Future Circular Collider Feasibility Study. The luminosity-frontier electron-positron collider (FCC-ee) is part of the proposed Future Circular Collider (FCC) programme which consists of FCC-ee followed by an energy-frontier hadron collider (FCC-hh). This study is well aligned with the 2020 Update of the European Strategy for Particle Physics that requested a global feasibility study of a future 100 TeV hadron collider at CERN, with an electron-positron Higgs and electroweak factory as a possible first stage.  The latest accelerator layouts and beam parameters for FCC-ee and FCC-hh with the R&D for key technologies prepared for the mid-term review  will be presented.The progress in the interaction region and machine-detector-interface design, where the Italian contribution with INFN-Frascati has a well-established leading role will be discussed. Join Zoom Meetinghttps://infn-it.zoom.us/j/95274769209?pwd=cm82R2dsd3hxZ2Q3VTVsMGhOQ3dQdz09Meeting ID: 952 7476 9209Passcode: 774691

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KASP: Kaonic atoms between QED, QCD and beyond Standard Model physics research

The symposium has the aim to gather experimentalists and theorists working in the field of exotic atoms, in particular in kaonic atoms, to discuss the outcome of the ongoing experiments in this sector and plan future activities. The impact of kaonic atoms studies in particle and nuclear physics, as well as in astrophysics and foundation of physics, with an excursus in beyond Standard Model physics search, will be addressed.In the evening of 28th November a public event will be organized at Sala degli Specchi – Comune di Frascati (more infos will be provided soon).The symposium is organized with the support of the INFN-LNF, the John Templeton Foundation (Grant 62099), the STRONG-2020 EU project (grant agreement No 824093), the MITIQO project n. A0375-2020-36647,“Gruppi di ricerca 2020” – POR FESR Lazio 2014-2020 and FWF Austria, project n. FWF P33037-N and of Comune di Frascati.  ZOOM LINK:https://infn-it.zoom.us/j/91823250790 Chairs:Catalina Oana Curceanu, INFN-LNF, Frascati, ItalyMihail Iliescu, INFN-LNF, Frascati, Italy Kristian Piscicchia, CREF, ItalyAlessandro Scordo, INFN-LNF, Frascati, ItalyFlorin Sirghi, INFN-LNF, Frascati, ItalyJohann Zmeskal, SMI-Vienna, Austria Local Organizers:Simone Manti, INFN-LNF, Frascati, ItalyFabrizio Napolitano, INFN-LNF, Frascati, ItalyDiana Laura Sirghi,  INFN-LNF, Frascati, ItalyFrancesco Sgaramella,  INFN-LNF, Frascati, ItalySecretariat:Alessandra Tamborrino Orsini, INFN-LNF, Frascati, Italy     

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FCC-ee MDI & IR mockup Workshop

 Welcome to the FCCIS MDI and IR mockup workshop in Frascati!The MDI and IR mockup workshop of FCC Innovation Study of WP2 and Task 3 will be held in Frascati, National Laboratories of INFN, from 16 to 17 November 2023. This workshop will focus on Machine-Detector-Interface studies and on the IR mockup, covering topics such as:IR mockup critical concepts,Beam losses in the IR,Synchrotron radiation,IR HOM calculations,Vertex detector integration & cooling,Accelerator and detector constraints in the IR. We are looking forward to seeing you in Frascati !FCCIS – The Future Circular Collider Innovation Study. This INFRADEV Research and Innovation Action project receives funding from the European Union’s H2020 Framework Programme under grant agreement no. 951754.

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Muon Collider General Meeting (ITA)

Il meeting si svolgerà presso l’Auditorium “Bruno Touschek” (Ed. 36). I partecipanti potranno accedere dall’ingresso secondario di Via E. Fermi, 60 (vedi mappa).I partecipanti in possesso di un badge della propria struttura INFN, in corso di validità, potranno utilizzare tale badge per accedere dal tornello.Il cancello secondario sarà aperto dalle ore 8:00 alle ore 16:00 (anche per le autovetture). Oltre questo orario – a meno che non si sia dotati del proprio badge INFN per l’uso del tornello –  bisognerà passare dall’ingresso principale di Via E. Fermi, 56.I Coffee breaks ed il pranzo a buffet del 13 Novembre si svolgeranno nella hall dell’Auditorium e saranno offerti dall’organizzazione.Il pranzo del 14 Novembre si terrà presso la mensa dei LNF alle h. 13:30 (costo per un pasto completo 7,00 €). Si prega di indicare la partecipazione ai pranzi nel modulo di registrazione.La cena sociale del 13 Novembre si svolgerà in un ristorante di Frascati (ancora da definire) al costo di circa 50,00€. Un autobus verrà messo a disposizione dei partecipanti per il viaggio dai LNF al ristorante.Per la sistemazione alberghiera si veda “Accommodation”. N.B.: opzione di prenotazione all’hotel Villa Mercede fino al 30 Ottobre 2023.La scadenza per la registrazione è posticipata al 5 Novembre p.v.                                                 

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SESAME Peer Review Panel

The SESAME Proposal Review Committee (PRC) is an international advisory body, established by the SESAME Director to provide counsel regarding the allocation of user beam time. The PRC undertakes this responsibility by thoroughly assessing the scientific and technological merit of proposals submitted by the General Users (GUs) and ascertaining their priority. This assessment is guided by criteria aligned with IUPAP’s Recommendations for the Use of Major Physics Users Facilities. The forthcoming PRC meeting is scheduled to convene in Frascati.

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Interplay between PDF fits and new physics

The interpretation of LHC data, and the assessment of possible hints of new physics, requires the precise knowledge of the proton subnuclear structure in terms of parton distribution functions (PDFs). In this talk, I present a systematic methodology designed to determine whether and how global PDF fits might inadvertently ‘fit away’ signs of new physics in the high-energy tails of the distributions.I showcase a scenario, in which the PDFs may completely absorb such signs of new physics, thus biasing theoretical predictions and their interpretation. I discuss strategies to single out the effects in this scenario and disentangle the inconsistencies that stem from them. Finally, I will present a new tool that is able to perform simultaneous fits of PDFs and SMEFT Wilson coefficients that might help disentangling the effects highlighted in this talk.    

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Neutron star and dense nuclear matter with phenomenological short distance repulsion.

The nuclear equation of state is well known at the low-density from the study of finite nuclear. Conversely, perturbative QCD describes nuclear matter existing as deconfined quark-gluon plasma when the densities become extremely high. However, the intermediate range is yet to be determined. To nuclear theorist neutron stars are interesting because their core densities sit precisely in this region. Measurements of their mass, radii and now the tidal deformability help constrain the nuclear equation of state. The highest mass stars are now observed to be over 2 solar masses with the possibility of reaching 2.3. What is interesting is that hadronic models, subjected to beta equilibrium, should not predict the existence of heavy neutron stars due to the appearance of hyperons. Hyperons are thought to appear around 3-4 times saturation density and rob pressure generated via neutron degeneracy. This in turn lowers the maximum mass in which the theory can predict. The observation of heavy neutron stars suggest that additional repulsion must be present if one is to reasonably presume strange baryons in the cores of heavy neutron stars.  In this presentation I will describe in more detail the hyperon crisis and the relevant physics for high density repulsion within the framework of the quark-meson-coupling model (QMC).

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15th Workshop on Breakdown Science and High Gradient Technology (HG2023)

We are pleased to announce the 15th workshop on breakdown science and high gradient technology, HG2023, that will be held in person in Italy at the Frascati National Labs of INFN – Via Enrico Fermi, 60 – Frascati (Rome) from 16 to 20 October 2023.In order to allow a remote participation to the event a zoom link has been set up. Look for the new item on the left (Videoconference). An INFN indico account is requested to login in and join the meeting (all instructions are available), if you haven’t it please create a new one. Without the log in, the incomplete zoom link will ask for a pass code.In case of problems send an e-mail to: hg2023@lists.lnf.infn.it The demand for pushing the RF structures operation to higher and higher accelerating gradients has been historically driven by the High Energy Physics community need of expanding the energy frontier of the discovery machines. This demand is still far to be exhausted, as clearly stated in the Accelerator R&D Roadmap for the European HEP Strategy released in late 2021. But high gradients are also extremely beneficial for accelerators destinated to different fields, such as compact light sources, medical and industrial applications, that are growing more and more as new drivers of the HG technology.The HG workshop covers revisitations of basics and fundamentals concepts, recent theoretical and experimental achievements, advancements in modelling and understanding of the breakdown phenomena, new design concepts and innovation in manufacturing techniques, ideas and experimental activities towards more powerful and …

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