Tag Archives: Evento scientifico

Speaker: Cornelia Hoehr (TRIUMF) TRIUMF, Canada’s particle accelerator centre, brings nuclear physics, accelerator technology and life sciences together to develop new approaches to cancer treatment. Building on decades of experience with proton therapy, research at TRIUMF explores how the precision of proton beams can be further improved through advanced treatment planning, dosimetry and range verification. The research programme also investigates FLASH radiotherapy, in which radiation is delivered at ultra-high dose rates, with the goal of maintaining tumour control while reducing damage to healthy tissue. A complementary approach is targeted radionuclide therapy, where radioactive isotopes are attached to molecules that selectively target cancer cells. TRIUMF produces and investigates a growing range of alpha- and Auger-emitting isotopes, including actinium-225, lead- 212 and mercury-197m, for next-generation cancer therapies. Together, these efforts demonstrate how fundamental nuclear physics can be translated into innovative technologies and treatments that aim to make cancer therapy more precise, effective and sparing of healthy tissue.

Speaker: Valerie Domcke (CERN) Current gravitational wave (GW)experiments cover a large frequency range from nHz to kHz. Beyond that, the regime of high frequency GWs is both extremely challenging, and highly motivated as a unique window to the very early Universe. In this talk I will discuss new ideas to search for gravitational waves in this frequency regime. These include astrophysical probes, laboratory experiments designed for axion searches and a new version of an old idea: Magnetic Weber Bars.

Speaker: Dennis Proft (Bonn Univ.) The Electron Stretcher Facility ELSA at the University of Bonn has been delivering electron beams of up to 3.2 GeV to hadron physics experiments by slow extraction on a third-integer resonance since the mid-1980s. Over this time, the extraction process was refined to provide stable beam position, angle and rate at the experimental stations. This talk reviews the principles of the extraction scheme as well as recent developments, including verified single-electron purity at the detector test beamline. I will compare simulations with operational experience and discuss operational challenges such as the simultaneous extraction mode to two experimental sites, which is regularly in use since 2025.

Speaker: Colomba Brancaccio (MPP Munich) Top-quark pair production in association with a jet, a photon or a Higgs boson is of high priority in the LHC precision programme, and matching the precision of the experimental data requires predictions at NNLO in QCD. In this talk I review recent progress on tt̄+X at this accuracy. I first discuss tt̄H production in the framework of perturbative fragmentation functions. The latter describe the nearly collinear emission of a Higgs boson from a top quark and reproduce the leading mass dependence of the exact NLO calculation, while the extension to NNLO introduces nontrivial subtleties and complications. I then turn to tt̄j, where the two-loop five-point amplitudes have long been the bottleneck towards NNLO predictions for this process. I present their leading-colour computation: the finite remainder is reconstructed analytically from finite-field evaluations using a tailored set of special functions evaluated through numerical integration of its differential equations. This result has made NNLO QCD predictions for the pp->tt̄j cross section and differential distributions possible. Finally, I show how the same techniques apply to the planar two-loop integrals relevant for tt̄γ hadroproduction at leading-colour, as a first step towards the NNLO computation of this process.

Speaker: Michelangelo Mangano The first protons circulated in the LHC beampipe in September 2008. At age 18, the LHC has reached full maturity, and is now preparing to enter the second stage of its life, the High-Luminosity LHC (HLLHC), due to start in 2030 following the next 4 years of upgrades for the experiments, the accelerator and the infrastructure. I will reflect upon the lessons learned so far, focusing on the open questions, the answers and the paradigm changes that emerged from the analyses of the LHC data, with a view at their implications for the HL-LHC and beyond.

The High Luminosity Large Hadron Collider (HL-LHC) is planned to start taking data in 2030: it will deliver proton-proton collisions at 14 TeV with an integrated luminosity of 3/ab. The particle physics community will be therefore provided with an unprecedented amount of data, which will allow Standard Model tests and searches for New Physics with a precision never achieved before. The workshop will deal with the state of the art as well as the prospects of particle physics phenomenology in view of the HL-LHC project. It will be structured according to review theory and experimental talks, given by key speakers in the field, and discussion sessions. Special attention will be paid to electroweak physics, top-quark and Higgs phenomenology, progresses in quantum chromodynamics and Monte Carlo event generators. The attendance of young researchers, such as graduate students and young postdocs, is particularly encouraged, as the meeting will represent a unique opportunity to debate in an informal atmosphere the challenges of HL-LHC and future facilities. This workshop is part of the Phenomenology Visiting Institute at LNF, supported by the INFN National Theory Committee (CSN4) to promote the participation of early-career scientists. Some limited funding is available for young participants covering meals in the canteen and/or the guesthouse. Please contact the organizers if you wish to apply for support.

Speaker: Arturo De Giorgi (Durham Univ.) Axions and axion-like particles may arise in Nature as a spectrum rather than as a single field. Such a scenario naturally emerges in string-inspired constructions, as well as in reasonably simple bottom-up extensions of single axion models. In such multi-axion scenarios, new signal features arise, and recasting of existing experimental bounds from single-axion constraints becomes generally non-trivial. This motivates a closer look at how laboratory axion searches are impacted when multiple states contribute. In this talk, I will first briefly introduce bulk axions in extra dimensions as a concrete framework that naturally generates multiple modes, and highlight some of the phenomenological subtleties that follow. I will then present general results for multi-axions–photon oscillations, showing how coherence and interference can either enhance or suppress signals, with direct implications for light-shining-through-a-wall experiments and beyond.  

The workshop “Quantum Foundations: from the Pauli Exclusion Principle to Quantum Gravity” aims to bring together theorists and experimentalists to discuss current developments in the foundations of quantum mechanics and their implications for fundamental physics. The meeting will provide an opportunity to exchange recent theoretical and experimental results, identify open questions, and strengthen interactions between various research communities working in the field. The scientific program will address topics including the Pauli Exclusion Principle, the spin-statistics connection, quantum gravity models, collapse models, fundamental symmetries, quantum (de)coherence, and precision tests of quantum mechanics. Particular attention will be devoted to the interplay between quantum theory and gravity, quantum-gravity phenomenology, and experimental approaches that can probe physics beyond the Standard Model. The workshop aims to promote collaborations between theorists and experimentalists and to stimulate new ideas for future investigations of the fundamental laws of nature.

Modern observational astronomy and cosmology are undergoing a profound transformation, driven by revolutionary facilities such as the James Webb Space Telescope and, in the near future, the Square Kilometre Array, Euclid, the Nancy Grace Roman Space Telescope, and the Extremely Large Telescope. These observatories, together with increasingly sophisticated numerical simulations, are providing unprecedented insights into the origin, evolution, and large-scale structure of the Universe. This mini-workshop offers an overview of some of the most exciting developments in contemporary extragalactic astronomy and cosmology, from the foundations of the standard cosmological model to the formation of the first galaxies and the role of large-scale simulations in interpreting observations. Through three complementary lectures, Professor Stephen Wilkins will present the current state of our knowledge, discuss the observational and computational tools that underpin modern astrophysics, and highlight the major open questions that continue to drive research into the nature of dark matter, dark energy, galaxy formation, and the evolution of the Universe. Notice: In-person attendance is restricted to those who normally have access to the Frascati National Laboratories (i.e. ‘dipendenti’, ‘associati’, ‘ospiti’). A link for remote participation will be made available to everyone. There is no fee and no coffee breaks are scheduled.