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Tag Archives: Evento scientifico

Dark Energy: from Fundamental Theories to Observations (and back)

The Dark Energy from Fundamental Theories to Observations Conference will be held in the Bruno Touschek Auditorium (Bldg. 36, access from LNF secondary entrance in Via E. Fermi, 60 – see map).   Aim of the meeting:   The problem of dark energy has unprecedentedly taken a central stage in the gravitation and cosmology research field, also in the view of the discrepancies found in the current expansion of the Universe as derived from Planck data and from local direct measurements. In this regard, we aim at organizing an international workshop to discuss dark energy both from the theoretical and observational points of view. The workshop will be a precursor to the growing interest that this topic will gain in the near future due to the launch of the Euclid satellite, planned for next year, and complementary ground-based observatories, such as the Vera Rubin one (LSST). We would like to gather experts (both from the theory and observational sides) to understand together, through talks and discussion sessions, which predictions of fundamental theories can be tested by observations and, conversely, which new roads in fundamental physics may be opened by the future data.      Organising Committee   Luca Buoninfante (Nordita) Alexey Koshelev (University of Beira Interior, Covilha) K. Sravan Kumar (Tokyo Inst. Tech.) Gaetano Lambiase (Università degli studi Salerno & INFN) Marina Migliaccio (Università di Roma Tor Vergata & INFN) Enrico Nardi (INFN-Laboratori Nazionali di Frascati) Alberto Salvio (Università di Roma Tor Vergata & INFN)           …

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The U boson as a generalized dark photon, possibly also behaving as an axionlike particle

Could a new interaction exist in nature ?  Beyond weak, electromagnetic and strong interactions, it is natural to enquire about an additional one, associated with an extra-U(1) gauge group. The corresponding boson, called U forty years ago, may be (very) light, and (very) weakly coupled, its properties depending on m_U, the size of its coupling, and corresponding current (which depends on the BE-Higgs symmetry-breaking sector). Its vector part is a combination of electromagnetic with B and L (or B-L) currents. Axial couplings may also be present, which may make the spin-1 U boson interact much like a spin-0 axionlike particle. We discuss some of the effects of such a new boson, including its production in e+e- annihilations and beam dump experiments, ψ, Υ and K decays, parity-violation effects in atomic physics, anomalous magnetic moments of charged leptons, non-standard neutrino interactions, a possible “protophobic” behaviour suppressing π° -> γ U decays (related with a tentative interpretation of the Atomki anomaly). The U may also serve as a mediator to a new dark sector, allowing for thermally-produced light dark matter particles. Join Zoom Meeting https://infn-it.zoom.us/j/86034969060?pwd=Nlp4eWdpOUhGam9QQmFpczB2TlVmQT09 Meeting ID: 860 3496 9060 Passcode: 809510

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Workshop on kaons with CLAS12

The workshop will be held in the Leale room (Bldg. 22, access from LNF secondary entrance in Via E. Fermi, 60 – see map). Chairs: Marco Mirazita, Laboratori Nazionali di Frascati, INFN, Italy Patrizia Rossi, Laboratori Nazionali di Frascati, INFN, Italy Organizing Committee: Harutyun Avagyan, Jefferson Lab, USA Fatiha Benmokhtar, Duquesne University, USA   Additional Information LNF Guest house booking Zoom link            

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Nanoscience & Nanotechnology

The Nanoscience & Nanotechnology Conference will be held in the Bruno Touschek Auditorium (Bldg. 36, access from LNF secondary entrance in Via E. Fermi, 60 – see map). The NEXT Nanotechnology group at INFN – LNF organizes since 2000 a series of international meetings in the area of nanotechnology. The conference in 2022 is devoted to recent developments in nanoscience and its manifold technological applications. It consists of a number of tutorial/keynote lectures, as well as research talks presenting frontier nanoscience research developments and innovative nanotechnologies in the areas of biology, medicine, aerospace, optoelectronics, energy, materials and characterizations, low-dimensional nanostructures and devices. We plan to submit selected papers, based on conference talks and related discussions, for publication on a dedicated issue of a MDPI journal (Materials, IF=2.972). There will be Invited Lecturers and selected talks from the call for papers below, as well as a poster session. CALL FOR CONTRIBUTIONS Authors wishing to submit their work for presentation at the conference can send an abstract as a doc or pdf file (max. 3 pages) to bellucci@lnf.infn.it by 30th November 2022, specifying whether it is meant for oral or poster presentation. Authors will be notified of the acceptance of their submission. REGISTRATION There is no fee for attendance, however registration is mandatory and must be submitted by 30th November 2022. HOTEL ACCOMMODATION Hotel reservation is the responsibility of the participants. Additional information can be found in the web site. LOC: S. Bellucci (Chair), Y. Gnilitskyi, D. Mencarelli, F. Micciulla, L. Pierantoni, M. Regi, …

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Nuclear Physics Mid Term Plan in Italy – LNF Session

  We are glad to announce and welcome you to the LNF Session of the workshop:  “Nuclear Physics Mid Term Plan in Italy”. This workshop, divided on a series of four sessions, is dedicated to future nuclear physics research in Italy with particular emphasis on INFN laboratories that are preparing important upgrades for the accelerators complexes. Session  LNS (4-5 April 2022) Session  LNL (11-12 April 2022) Session  LNGS (11 October 2022) Session LNF (1-2 December 2022) The LNF Session will start on December, 1st at 9 am and will end on December, 2nd around 6.30 pm. During the two days, the conveners of the WG will report on their activities and will describe the future perspectives on Nuclear Physics detectors and the potentialities on Nuclear Physics measurements at LNF. The activities will be organized in the following Working Groups:   Organizing Committee of the workshop: Giovanna Benzoni      Diego Bettoni      Fabio Bossi      Gustavino Carlo Maria Colonna      Antonino di Leva      Enrico Fioretto      Alba Formicola Lorenzo Fortunato      Santo Gammino      Fabiana Gramegna      Matthias Junker Marco La Cognata      Ivano Lombardo      Rosario Nania      Ezio Previtali Stefano Romano      Paolo Russotto      Francesca Soramel      Jose Javier Valiente-Dobón   Scientific secretaries: Eugenia Naselli           Alessandro Oliva           Julgen Pellumaj           Marta Polettini Secretary: Alessandra Tamborrino Orsini      Sponsors This event is kindly supported by:

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Nuclear Physics Mid Term Plan in Italy – LNF Session

We are glad to announce and welcome you to the LNF Session of the workshop:  “Nuclear Physics Mid Term Plan in Italy”. The workshop will be held in the Bruno Touschek Auditorium (Bldg. 36, access from LNF secondary entrance in Via E. Fermi, 60 – see map). Since the workshop will be held in blended mode (online and in presence), online attendees can remotely join the Session via the following Zoom meeting link: https://cern.zoom.us/j/63753264983?pwd=a001L0pwbmpGdnVRMjF4Q1NpWDk3Zz09 This workshop, divided on a series of four sessions, is dedicated to future nuclear physics research in Italy with particular emphasis on INFN laboratories that are preparing important upgrades for the accelerators complexes. Session  LNS (4-5 April 2022) Session  LNL (11-12 April 2022) Session  LNGS (11 October 2022) Session LNF (1-2 December 2022) The LNF Session will start on December, 1st at 9 am and will end on December, 2nd around 6.30 pm. During the two days, the conveners of the WG will report on their activities and will describe the future perspectives on Nuclear Physics detectors and the potentialities on Nuclear Physics measurements at LNF. The activities will be organized in the following Working Groups:   Organizing Committee of the workshop: Giovanna Benzoni      Diego Bettoni      Fabio Bossi      Gustavino Carlo Maria Colonna      Antonino di Leva      Enrico Fioretto      Alba Formicola Lorenzo Fortunato      Santo Gammino      Fabiana Gramegna      Matthias Junker Marco La Cognata      Ivano Lombardo      Rosario Nania      Silvia Pisano Ezio Previtali      Stefano Romano      Paolo Russotto      Francesca Soramel Jose Javier Valiente Dobon     …

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Energy peaks and decay lengths to measure the top quark mass

  In this talk I will present how the idea of energy-peak invariance, already applied at the jet-energy level, can be applied on the decay-length spectrum of B-hadrons produced at the LHC from top quarks to measure the top-quark mass without uncertainties from jet energy scale calibration and without any significant sensitivity to the precise dynamics governing top production at the LHC. These two uncertainties have played a major role in top-quark mass extraction so far, thus this method opens the way to new measurements with reduced uncertainty. I will also discuss in detail the possible theory uncertainties that affect this strategy and the necessary level of control on hadronization dynamics that is going to be needed to carry out this measurement.              

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EuPRAXIA Preparatory Phase Kick-off Meeting

FOR THOSE WHO WILL PARTICIPATE ON SITE, PLEASE BRING WITH YOU THE HARD COPY OF YOUR TICKET (DOWNLOADABLE FROM YOUR REGISTRATION FORM). THE QR CODE ON IT WILL BE USED FOR THE CHECK IN.   The Eupraxia preparatory Phase Kick-off Meeting will be hybrid, for those who will participate remotely a zoom link will be provided (already sent on Nov. 21) for those who are in presence the meeting will be held in Aula Touschek – LNF Auditorium (Bldg. 36). All participants (on site and remote) have to register through the website. NO REGISTRATION FEE is required to attend the meeting. EuPRAXIA, the European Plasma Research Accelerator with eXcellence In Applications, is a distributed, compact and innovative accelerator facility based on plasma technology. Based on its Conceptual Design Report, published in 2020, and its government support the EuPRAXIA Research Infrastructure has been selected as only particle accelerator project for the 2021 Roadmap Update of the European Strategy Forum on Research Infrastructures (ESFRI). In its first phase, its consortium will construct an electron beam-driven plasma accelerator in the metropolitan area of Rome, thus bringing innovation, potential for spin-off companies, state-of-the art scientific applications and a vibrant international user community to the middle of Italy. In its second phase, EuPRAXIA will build a laser-driven plasma accelerator at a site to be chosen between several options in Europe.  EuPRAXIA will serve users in ultra-fast science, e.g. on high-resolution medical imaging, deeply penetrating positron annihilation spectroscopy for materials and with Europe’s most southern free-electron laser (FEL). It will offer fascinating …

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Determination of heavy mesons fragmentation functions

  We present the extraction of heavy mesons fragmentation functions using a phenomenological approach. For the first time, we calculate non-perturbative fragmentation functions for B and D mesons at NNLO in the so-called zero-mass variable-flavour-number scheme in QCD. We will also incorporate the effect of charmed-meson mass corrections and determine D-meson fragmentation functions by fitting LEP and SLD data. We present NNLO single-inclusive production cross sections in electron-positron annihilation and estimate the uncertainties by means of the Hessian approach. The comparison with other calculations is discussed as well.              

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