BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Legacy of the Borexino experiment DTSTART;VALUE=DATE-TIME:20240610T111500Z DTEND;VALUE=DATE-TIME:20240610T121500Z DTSTAMP;VALUE=DATE-TIME:20260716T142818Z UID:indico-contribution-14-1329@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Marcin Misiaszek (Jagiellonian University)\nBorexino is the first experiment to have systematically codified techniques needed for studying neutrino physics with a threshold down to about 100 keV\, re aching unprecedented levels of radiopurity. Currently\, today's rare event s and low-energy neutrinos experiments ( as e.g. Juno\, searches for dark matter and 0nbb decay) all have a program to obtain good radiopurity\, whi ch largely derives from Borexino. The experiment has closed a great circle of sky knowledge\, opened in 1938 by Bethe and von Weiszackers' hypothesi s on the pp and CNO cycles as engines that power the Sun and stars\, by me ans of a multitude of measurements that give the entire spectrum of solar neutrinos and tell us how the Sun and main sequence stars work. During the talk\, the most important results and experimental details will be discus sed.\n\nhttps://indico.koza.if.uj.edu.pl/event/14/contributions/1329/ LOCATION: URL:https://indico.koza.if.uj.edu.pl/event/14/contributions/1329/ END:VEVENT BEGIN:VEVENT SUMMARY:Searches for rare events\, role of underground laboratories DTSTART;VALUE=DATE-TIME:20240603T110000Z DTEND;VALUE=DATE-TIME:20240603T120000Z DTSTAMP;VALUE=DATE-TIME:20260716T142818Z UID:indico-contribution-14-1314@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Grzegorz Zuzel (Jagiellonian University)\nUnderstand ing of nuclear processes occurring at low energies (< 1 MeV) and observed in laboratories is of great importance for modern particle physics\, astro physics and cosmology. Current experiments include studies of neutrino pro perties\, stellar evolution\, the search for non-baryonic dark matter\, pr oton decay or neutrino-less double beta decay. The discovery of the non-ze ro mass of neutrinos and their oscillations is now well established\, howe ver\, the absolute scale of their masses is still unknown. It is also unkn own whether the neutrino is a Dirac or Majorana particle\, that is\, wheth er it is its own antiparticle. These fundamental problems can be resolved by studying the double beta decay. If the neutrinos were a Majorana partic les\, the neutrino-less double beta decay should occur. It is only possibl e if the neutrino and the antineutrino are identical particles and lepton number is not conserved. Another extremely exciting problem is the structu re of the Universe. A number of astronomical observations indicate that st ars in galaxies and galaxy clusters are immersed in a halo of non-luminous matter\, having a mass at least one order of magnitude greater than that of visible matter. Although indirectly the existence of dark matter is qui te well documented\, its nature is still unknown. Theories extending the S tandard Model suggest the possibility of direct registration of cold dark matter particles (collectively referred to as Weakly Interacting Massie Pa rticles - WIMPs)\, through interactions with atomic nuclei.\n\nThe discove ry of WIMPs\, neutrino-less double beta decay or the proton decay would be of great importance for modern physics. However\, searches for these proc esses are very difficult due to the fact that the expected signal is extre mely weak. The active masses of the detectors currently in operation are o n the order of several hundred kilograms\, and essentially no detector has so far registered an indisputably positive signal. In the new generation of experiments being prepared\, the active masses will be at the level of many tons. However\, in order to significantly improve their sensitivities \, at the same time as increasing the mass\, the background of the detecto rs must be reduced. The background comes mainly from the decays of natural radioisotopes contained in the construction materials and from cosmic ray s. To reduce the latter the detectors are located in deep underground labo ratories. Shallower laboratories\, on the other hand\, are necessary for m aterial testing\, selection and related R&D studies. We plan to conduct su ch measurements in an underground laboratory in Książ. In the talk const ruction of the site\, preliminary results of measurements characterizing t he site (muon flux\, radon concentration) and research plans will be discu ssed.\n\nhttps://indico.koza.if.uj.edu.pl/event/14/contributions/1314/ LOCATION: URL:https://indico.koza.if.uj.edu.pl/event/14/contributions/1314/ END:VEVENT BEGIN:VEVENT SUMMARY:Searches for dark matter using LAr TPC detectors DTSTART;VALUE=DATE-TIME:20240422T110000Z DTEND;VALUE=DATE-TIME:20240422T120000Z DTSTAMP;VALUE=DATE-TIME:20260716T142818Z UID:indico-contribution-14-1223@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Małgorzata Harańczyk (Jagiellonian University)\nDa rk Matter searches are captivating as they hold the potential to unravel o ne of the universe's most enduring mysteries. The Global Argon Dark Matter Collaboration (GADMC) comprises the ArDM\, DarkSide\, DEAP\, and MiniCLEA N dark matter direct detection experiments\, with the collective aim of fu lly exploring the experimentally accessible dark matter parameter space do wn to the neutrino fog. While the experimental collaborations that formed GADMC all utilized argon-based detectors\, they employed a variety of dete ctor designs. This presentation will provide an overview of the DarkSide-2 0k detector\, currently under construction by GADMC at the LNGS laboratory in Italy. DarkSide-20k is a two-phase Time Projection Chamber with low-ra dioactivity acrylic walls and optical readout using Silicon PhotoMultiplie rs (SiPMs). Notably\, DarkSide-20k will be filled with Underground Argon\, minimizing the cosmogenically-produced background of Ar-39. We will discu ss the design\, implemented background reduction techniques\, expected sen sitivity\, and the current status of DarkSide-20k.\n\nhttps://indico.koza. if.uj.edu.pl/event/14/contributions/1223/ LOCATION: URL:https://indico.koza.if.uj.edu.pl/event/14/contributions/1223/ END:VEVENT BEGIN:VEVENT SUMMARY:CP Violation and the Security in Quantum Protocols DTSTART;VALUE=DATE-TIME:20240226T120000Z DTEND;VALUE=DATE-TIME:20240226T130000Z DTSTAMP;VALUE=DATE-TIME:20260716T142818Z UID:indico-contribution-14-1169@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Beatrix Hiesmayr (University of Vienna\, Austria)\nW ith the second quantum revolution\, security in communication can be estab lished through quantum phenomena. One of the most important tools to study the zoo of particles are symmetries and their violations by certain parti cles such as the CP symmetry (C...charge conjugation\, P...parity). In thi s talk I will establish a connection between these two aspects.\n\nhttps:/ /indico.koza.if.uj.edu.pl/event/14/contributions/1169/ LOCATION: URL:https://indico.koza.if.uj.edu.pl/event/14/contributions/1169/ END:VEVENT BEGIN:VEVENT SUMMARY:How special is the particle physics Standard Model? DTSTART;VALUE=DATE-TIME:20240212T120000Z DTEND;VALUE=DATE-TIME:20240212T130000Z DTSTAMP;VALUE=DATE-TIME:20260716T142818Z UID:indico-contribution-14-1168@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Steven Bass (Kitzbühel Centre for Physics\, Austria )\nThe Standard Model describes very well the results of our present exper iments\, from low energy precision measurements up to 13 TeV collisions at the LHC. How high in energy might it still work without need for new phys ics? Mathematically it is self-consistent up to the Planck scale. Physics- wise\, if one extrapolates the Standard Model up to the Planck scale using renormalization group evolution\, one finds that the vacuum is within abo ut one standard deviation of being stable with any metastability setting i n above 10^10 GeV. On the other hand\, there are open puzzles: the tiny ne utrino masses\, the matter-antimatter asymmetry in the Universe\, fermion families (why are there 3?)\, dark energy and dark matter plus primordial inflation. Here we give an introduction to these open questions and discus s how they might be resolved within the framework of an emergent Standard Model\, with gauge symmetries "born" in a topological-like phase transitio n (without global order parameter) and dissolving in the extreme ultraviol et (instead of extra unification).\n\nReferences:\nSD Bass\, Philosophical Transactions of the Royal Society A 382 (2023) 20230092\, https://doi.org /10.1098/rsta.2023.0092\n\nhttps://indico.koza.if.uj.edu.pl/event/14/contr ibutions/1168/ LOCATION: URL:https://indico.koza.if.uj.edu.pl/event/14/contributions/1168/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of the Femtoscopic correlation at HADES (GSI) DTSTART;VALUE=DATE-TIME:20231211T120000Z DTEND;VALUE=DATE-TIME:20231211T130000Z DTSTAMP;VALUE=DATE-TIME:20260716T142818Z UID:indico-contribution-14-963@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Narendra Rathod (Warsaw University of Technology)\nH adron femtoscopy emerges as a potent tool in high-energy nuclear collision studies\, providing a means to uncover intricate details of the particle- emitting source. This technique examines momentum space correlations betwe en pairs of particles\, offering insights into the spatial and temporal ch aracteristics of the emission region. By analyzing interference patterns a rising from quantum statistics and final-state interactions\, hadron femto scopy facilitates the extraction of information regarding the size\, shape \, and duration of the particle-emitting source.\n\nIn recent decades\, th ere has been extensive interest in understanding the properties of dense m atter\, particularly in the context of hypernuclei and hyperons. The prese nce of these exotic particles inside neutron stars has been linked to the softening of the Equation of State (EoS)\, imposing a constraint on the ma ximum mass of neutron stars (known as the ”hyperon puzzle”) to be belo w two solar masses. However\, the scarcity of experimental data at high ba ryon chemical potential poses significant challenges in constructing an ac curate EoS. To investigate matter under conditions akin to neutron star co res\, low-energy heavy-ion collisions are employed. The study of strong in teractions involving hyperons and clusters\, such as nucleon-hyperon (e.g. \, p−Λ) or nucleon-cluster (e.g.\, p − d\, p − t\, or p −3 He)\, remains a challenge due to incomplete understanding of their interactions. Exploring two-particle correlations involving clusters allows for the inv estigation of the ground state of 4Li or the excited state of 4He. The inf ormation carried by created hadrons and clusters\, available post thermal freeze-out\, makes them valuable for studying earlier collision stages. Pa rticularly\, the use of photons\, with their relatively long mean free pat h and emission throughout the system’s evolution\, proves beneficial for examining earlier collision stages.\n\nFemtoscopy\, a method enabling the examination of the space-time characteristics of collision generated syst ems\, operates within a time-span of 10−23 seconds and a spatial scale o f femtometers (10−15 meters). Experimental measurements provide insights into two-body interactions\, system geometry\, and dynamics. This work ut ilizes the HADES detector at GSI/FAIR (Germany)\, employing various detect ors\, including electromagnetic calorimeters capable of detecting neutral particles. Through the application of specialized software\, a dedicated f ramework\, and reconstruction algorithms\, the study aims to identify γ-p articles\, Λ-hyperons\, and clusters. The correlation functions for p − Λ\, p − d\, p − t\, p −3 He\, and γ − γ will be presented.\n\n https://indico.koza.if.uj.edu.pl/event/14/contributions/963/ LOCATION: URL:https://indico.koza.if.uj.edu.pl/event/14/contributions/963/ END:VEVENT BEGIN:VEVENT SUMMARY:Kaonic atoms studies at DAFNE: from SIDDHARTA-2 to future perspect ives DTSTART;VALUE=DATE-TIME:20231204T120000Z DTEND;VALUE=DATE-TIME:20231204T130000Z DTSTAMP;VALUE=DATE-TIME:20260716T142818Z UID:indico-contribution-14-962@indico.koza.if.uj.edu.pl DESCRIPTION:Speakers: Alessandro Scordo (INFN - Laboratori Nazionali di Fr ascati\, Italy)\, Florin Sirghi (INFN - Laboratori Nazionali di Frascati\, Italy)\nThe DAFNE collider at INFN-LNF is a unique source of strangeness (low-energy kaons) in the world\, it delivers a low-momentum (< 140 MeV/c) nearly monochromatic charged kaon beam\, ideal for experimental studies o f low-energy kaon-nucleon/nuclei interactions. Using the experience gained with SIDDHARTA experiment\, which achieved the most precise kaonic hydrog en measurement of the 1s level shift and width to date\, new X-ray studies focused on kaonic deuterium are ongoing in the framework of the SIDDHARTA -2 experiment\, with the goal to determine the isospin dependent scatterin g lengths\, which is only possible by combining the K-p and the upcoming K -d results. The experimental challenge of the kaonic deuterium measurement is the very small x-rays yield\, the even larger width (compared to kaoni c hydrogen) and the difficulty to perform x-rays spectroscopy with weak si gnals in the high radiation environment of DAFNE. It is therefore crucial to develop a new large area X-rays detector system to optimize the signal and to control and improve the signal-to-background ratio by gaining in so lid angle\, increasing the timing capability and as well implementing an a dditional charge particle tracking veto systems. An overview of the experi mental improvements\, the status and plans of SIDDHARTA-2 and future persp ectives to measure other kaonic atom systems at the DAFNE collider will be given.\n\nhttps://indico.koza.if.uj.edu.pl/event/14/contributions/962/ LOCATION: URL:https://indico.koza.if.uj.edu.pl/event/14/contributions/962/ END:VEVENT END:VCALENDAR