https://uniba.sk/ Najnovšie novinky sk https://uniba.sk/fileadmin/tt_news_article.gif https://uniba.sk/ Najnovšie novinky TYPO3 - get.content.right http://blogs.law.harvard.edu/tech/rss Thu, 31 Dec 2026 00:00:00 +0100 https://uniba.sk/ Tuesday 11.11.2025 at 14:00, Lecture room F2/125 Jacinto P. Neto (Universität Wien & IPP, Brazil & Rio Grande do Norte U.):
Enabling Thermal Dark Matter within the Vanilla ℓµ – ℓτ Model
Abstract:
Thermal dark matter is a compelling setup that has been probed by a multitude of experiments, mostly in the GeV–TeV mass range. The thermal paradigm in the subGeV range is about to experience the same experimental test with the next generation of low-energy accelerators and light dark matter detectors. Motivated by this, we investigate thermal dark matter in the ℓµ – ℓτ and assess how the introduction of a matter-dominated era impacts the parameter that yields the correct relic density. Interestingly, we show that the projected experiments, such as MuSIC, FCC-ee, and LDMX, will probe a large region of the viable parameter space that yields the correct relic density. In the GeV–TeV mass regime, the usual large-scale detectors push the sensitivity. Our work highlights the rich interplay between early-universe dynamics, dark matter phenomenology, and the discovery potential of next-generation experiments. ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Peter.Matak@fmph.uniba.sk Mon, 27 Oct 2025 11:39:00 +0100 https://uniba.sk/ Tuesday 28.10.2025 at 13:00, Lecture room F1/364 G. Kozlov (CERN/JINR):
New heavy state(s) at the LHC ?
Either the “Toponium” or the A-Higgs boson discovered?
(Experiment. Phenomenology. Theory) Abstract]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Jaroslav.Stanicek@fmph.uniba.sk Fri, 24 Oct 2025 14:42:00 +0200 https://uniba.sk/ Thursday 30.10.2025 at 14:00, Lecture room M 223 Patrik Mihala:
Fully Implicit Finite-Volume Method for Doubly-Nonlinear Diffusion in Two-Component Domain
Abstract:
This work models diffusion in two adjoining regions governed by a doubly nonlinear diffusion law. The regions are coupled across their common interface by continuity of the normal flux and a nonlinear Nernst-type relation. In the simulations we use a conservative finite-volume discretization in space and fully implicit time stepping with adaptive step sizes and adaptive damping. The interface condition is approximated by a penalty formulation. The resulting nonlinear system is solved by Newton's method with an analytic Jacobian. The experiments show close agreement with a validated explicit scheme with approximately half the computational time, successful computation of a stiff case that explicit scheme cannot compute, and long-time relaxation with a stable interface jump. This is a joint work with J. Filo and J. Babušíková. ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Pavol.Quittner@fmph.uniba.sk Fri, 24 Oct 2025 12:19:00 +0200 https://uniba.sk/ We announce to the students that on occasion of the International Students' Day, the rector of the... [FaF] Titulka - široké novinky [FaF] Kalendár Mon, 27 Oct 2025 09:59:00 +0100 https://uniba.sk/ We announce to the students that on occasion of the All Saints' Day, the rector of the Comenius... [FaF] Titulka - široké novinky [FaF] Kalendár Mon, 27 Oct 2025 09:57:00 +0100 https://uniba.sk/ [Translate to English:] click here click here]]> [FTVS] Titulka - široké novinky Thu, 23 Oct 2025 14:13:00 +0200 https://uniba.sk/ Wednesday 29.10.2025 at 14:00, Lecture room F1/364 prof. Horst Lenske (Institut für Theoretische Physik, JLU Gießen, and NUMEN collaboration, LNS Catania):
From Nuclear Double Charge Exchange Reactions to Lepton Number Violating Electron Scattering

Abstract:
Lepton number violation (LNV) as underlying neutrinoless nuclear double beta decay (DBD) and equal-charged lepton pair plus di-jet production in ultra-relativistic hadron collisions are expected to deliver the heavily searched for signatures for physics beyond the standard model (BSM). To study the totally unexplored rank-2 nuclear isotensor spectroscopy inherent to DBD independently, peripheral heavy ion double charge exchange (DCE) reactions, as studied in the NUMEN project, are the proper tool. They include sequential (DCSE) and direct (MDCE) processes formally corresponding to two-neutrino and neutrinoless DBD, respectively. DSCE reactions are the perfect tool for isotensor two-particle - two-hole spectroscopy. MDBD leads to pion potentials as surrogates of the neutrino potentials in neutrinoless DBD. Direct probes for LNV are lepton DCE (LDCE) reactions at accelerators, apparently and surprisingly never considered before. Theoretical concepts are discussed, merging into a second-order approach. As a first application total cross sections of ΔL=+2 (e-,e+) reactions on nuclear targets are estimated. At beam energies beyond 10 GeV, cross sections of magnitudes are predicted which might be measurable at existing facilities. ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Jaroslav.Stanicek@fmph.uniba.sk Thu, 23 Oct 2025 09:43:00 +0200 https://uniba.sk/ Monday 27.10.2025 at 13:10 hod., Lecture room I 9 Janka Boborová:
Comparing abduction algorithms using CATS
Abstract:
Abduction is a fundamental way of reasoning, alongside induction and deduction. It aims to explain observed phenomena by identifying their possible causes (explanations) based on available background knowledge. Although it was long regarded as a non-standard reasoning problem, it has recently attracted increasing attention. It has been applied in various domains such as ontology engineering, debugging and repair, medical and system diagnosis, and multimedia interpretation. In our work, we focus specifically on ABox abduction, where both observations and explanations are statements about individuals (i.e., facts). Among the existing algorithms for abduction, we concentrate on those that are universally applicable, regardless of the expressivity of the knowledge base. Using a dataset from previous evaluations, we compared several such algorithms employing our experimental abduction solver, CATS, and subsequently implemented and tested a number of optimizations. Currently, we are developing a more comprehensive evaluation dataset of ABox abduction problems to conduct a proper evaluation. More information Youtube channel ]]> [FMFI] Prednášky a semináre [FMFI] Kalendár Damas.Gruska@fmph.uniba.sk Wed, 22 Oct 2025 15:25:00 +0200 https://uniba.sk/ On the occasion of All Saints’ Day (a public holiday in Slovakia dedicated to remembering deceased... [JLF] Titulka - široké novinky milos.hrabovsky@uniba.sk Tue, 21 Oct 2025 13:34:00 +0200 https://uniba.sk/ On the occasion of International Students’ Day (commemorating the student protests in 1939 and... [JLF] Titulka - široké novinky milos.hrabovsky@uniba.sk Tue, 21 Oct 2025 13:00:00 +0200