Tag Archives: Evento scientifico

The semileptonic decays of heavy hadrons are a rich source of observables sensitive to SM and NP paramaters. Despite the efforts from both experimental and theoretical sides, the measurements of the CKM parameter $|V_{cb}|$ from inclusive and exclsuive decays, remain in significant tension. Moreover, the measurements of the ratios $R=BF(B\rightarrow D^{(*)}\tau\nu_{\tau})/ BF(B\rightarrow D^{(*)}\ell\nu_{\ell})$ have gained in the last decade a lot of interests because of the intriguing discrepancies with their precise SM expectations. Even if the tension with the SM seems reduced with the accumulation of more measurements, more precise measurements and solid SM predictions would be welcome. If confirmed, the discrepancy would be a clear sign of violation of Lepton Universality (LU).The main goal of the workshop is to enlarge the potential of these measurements at LHCb, with a critical comparison with the results from B-Factories and prospects from Belle II.  The measurements of $|V_{cb}|$ and the predictions of the ratios R from exclusive $b\to c$ decays, require crucial input from non perturbative calculations of the Form Factors. New observables, accessibile from detailed studies of final state angular distributions, are very sensitive to NP models and can also constrain the shape of the Form Factors.Another topic that will be discussed is related to common systematic uncertainties that affect measurements both at LHCb and B-Factories. For example the production of excited charm-hadrons in semileptonic decays, that is a source of physical background. Moreover there are common tools that could be shared between the various experiments to speed up the analysis …

Axions and other very weakly interacting slim (m<GeV) particles (WISPs) are easily accommodated in several extensions of the Standard Model of Particle Physics.  Searches for WISPs are strongly motivated by our attempts to understand the nature of the dark matter and puzzling astrophysical and particle physics observations. This Kick-off Workshop is the first Network Activity of the COST Action “COSMIC WISPers in the Dark Universe: Theory, astrophysics, experiments” (CA21106). The objective of  the meeting is to initiate a discussion among the different communities involved in the project, with the immediate aim of reviewing the present experimental and theoretical status of WISP searches and plan further directions of investigation. The  Kick-off Meeting will be held in the Bruno Touschek Auditorium (Bldg. 36, access from LNF secondary entrance in Via E. Fermi, 60 – see map). Local Organizing Committee: Susanna Bertelli, Alessandro D’Elia, Claudio Gatti, Maddalena Legramante, Enrico Nardi, Elena Patrignanelli, Alessio Rettaroli, Simone Tocci. On Wednesday 22 February Caterina Braggio’s seminar on Axion Searches with Quantum Technologies (in italian): https://agenda.infn.it/event/34604/   Thursday 23 February Topic: COST Cosmic Wispers CA21106 Time: Feb 23, 2023 06:00 PM Rome Join Zoom Meeting https://infn-it.zoom.us/j/82799777179?pwd=aGZlTU53ZGNUeVVoSmJ5M0hQck5JQT09 Meeting ID: 827 9977 7179 Passcode: 199316   Friday 24 February Topic: COST Cosmic Wispers CA21106g Time: Feb 24, 2023 09:00 AM Rome Join Zoom Meeting https://infn-it.zoom.us/j/84634959132?pwd=R2QvMG1XMTg4aXZvMzFQbVhmYWhlZz09 Meeting ID: 846 3495 9132 Passcode: 971078  

  Ten years after the discovery of the Higgs boson, the LHC is gearing up for two more decades of operations, during which it will evolve into a precision machine. Amidst a shortage of particle discoveries, precision will allow the implementation of new strategies to search for new physics, aiming for non-resonant signals. The talk will broadly discuss the role played by such searches in the quest for new physics. I will first give an overview of the status of the so-called `SMEFT program’, a wide measurements’ campaign in the framework of the Standard Model Effective Field Theory, that captures heavy new physics sectors. The second part of the talk will discuss an example of non-resonant signals induced by light new physics, specifically by Axion-Like-Particles. The interplay with resonant/direct searches will be discussed for both cases, and I will briefly present the challenges and prospects for the upcoming LHC Run 3.   Join Zoom Meeting https://infn-it.zoom.us/j/84329930458?pwd=NHM4T0FpNTAxOFF4cGtRWGlKdCtJQT09 Meeting ID: 843 2993 0458 Passcode: 152607      

The Keplerian parameters of an orbit of a two-body system are obtained from basic considerations of kinematics and Newtonian mechanics. The fundamental physical properties of a system come to light naturally by considering the geometric parameters of the orbits, first of all, geodesics between the two bodies. Following the Kepler’s conception of assigning a crucial role to distance measurements, and introducing a metric in agreement with the speed of light c, we discover correspondences between physical and geometric parameters of the orbits of the planets. It turns out that the eccentricity of the elliptical orbit corresponds to the total momentum of the system, and the precession angle represents the scattering angle of one of the bodies with respect to the direction of the momentum. Formulating the gravitational potential with the elliptic parameters, an expression analogous to retarded Lienard-Wiechert potential is obtained.

While the ATLAS/CMS experiments discovered a Standard Model-like Higgs boson, no compelling new physics signal has been seen yet. Lack of experimental evidence of sparticles has pushed the lower limit on their masses in the multi-TeV regime. LHC searches for weak scale supersymmetry (SUSY) show that gluinos should lie beyond 2.2 TeV and top squarks beyond 1.1 TeV. Such high mass limits are well beyond early upper limits from naturalness and gives rise to the question whether SUSY is now unnatural.  We critique the older notions of naturalness and suggest an update based on the more conservative electroweak measure.  In that case, SUSY with light higgsinos and highly mixed TeV-scale top squarks is still quite natural.The emergence of the string landscape within the setting of eternal inflation adds substance to the naturalness debate.  In this case, a statistical pull to large soft terms must be balanced by the requirement that the derived weak scale lie within the narrow anthropic window. Then the landscape predicts a Higgs mass around 125 GeV, with sparticles, except light higgsinos, generally beyond LHC reach. We outline the consequences of this “stringy naturalness” for future colliders and dark matter searches.              

Certain anomalies observed in the angular correlation spectra of electron/positron pairs produced in nuclear transitions of 8Be, 4He and 12C can be interpreted as the emission of a bosonic particle with a mass of 17 MeV, that promptly decays into e+e−. I review the current status of these anomalies, and some theoretical interpretation for the hypothetical new particle. I will also describe the experimental prospects for validating or disproving the X17 hypothesis, and I will stress the importance of verifying the nuclear physics experimental hint by means of a particle physics experiment.   Join Zoom Meeting https://infn-it.zoom.us/j/89444651263?pwd=dGNOckhpUDhibVlSRnJxOWNPellRUT09 Meeting ID: 894 4465 1263 Passcode: 625539      

  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   Location The workshop will be held at the Frascati National Laboratories of INFN in the Conversi room (Bldg. 57, access from Via E. Fermi, 54 – see map).   Additional Information LNF Guest house booking How to reach the Lab Zoom link            

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, …

  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:

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     …