BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:IFIC-OAUV SPECIAL Seminar: How Often Do Solar Eclipses Happen — And Who Gets the Most? DTSTART;VALUE=DATE-TIME:20260324T110000Z DTEND;VALUE=DATE-TIME:20260324T123000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8522@indico.ific.uv.es DESCRIPTION:Speakers: Graham Jones (timeanddate.com)\nHow often does a tot al or annular solar eclipse occur at a given point on the Earth’s surfac e? In 1982\, the astronomer and mathematician Jean Meeus used a small pers onal computer to address this question in the Journal of the British Astro nomical Association (BAA). Four decades later\, we revisited the problem\, taking advantage of the much greater computing power now available.\n\nIn addition to putting Meeus’s estimates to the test\, we obtained a new r esult for partial eclipses. We gained further insights into the “latitud e effect” and showed there is a ~21\,000-year cycle in the frequency of eclipses in the Northern and Southern Hemispheres. Our paper has been acce pted by the Journal of the BAA.\n\nSpoiler alert: Over the next couple of years\, Valencia gets more than its fair share of big solar eclipses! This talk will also include some of the things we’ve learned from communicat ing with the public about eclipses.\n \n\n---\n\nATTENTION: Special venue \, as this is a joint IFIC-OAUV special seminar that will take place in t he Salón de Actos del Edificio de Cabecera\n\n---\n\nGraham Jones is an astrophysicist and science communicator at timeanddate.com\, a website ba sed in Stavanger\, Norway. One of Graham’s roles is to help produce ecli pse live streams for the general public and news agencies — using timean ddate’s own mobile observatory\, and collaborating with observatories an d astronomy clubs around the world.\n\nhttps://www.timeanddate.com/company /by/graham-jones\nhttps://indico.ific.uv.es/event/8522/ LOCATION:Salón de Actos - Edificio Cabecera (PCUV) URL:https://indico.ific.uv.es/event/8522/ END:VEVENT BEGIN:VEVENT SUMMARY:Topical Seminar: "From Antarctica to the Earth-Moon-Mars infrastru cture: An Innovative Gauge Theory Approach for Earth's Observation and the Future of Climate" DTSTART;VALUE=DATE-TIME:20260325T140000Z DTEND;VALUE=DATE-TIME:20260325T150000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8524@indico.ific.uv.es DESCRIPTION:Speakers: Gianluca Di Natale (CNR - Firenze - Italy)\, Frances co De Cosmo (CNR - Firenze - Italy)\nState-of-the-art climate models suffe r from major limitations\, as clouds remain the dominant source of uncerta inty. This uncertainty propagates nonlinearly into predictions of global t emperature\, climate sensitivity\, and extreme events\, reducing confidenc e in long-term projections.\n\nTo enhance model performance\, both remote and in situ measurements\, whether spectrally resolved or not\, are strict ly necessary. By applying appropriate inversion techniques to these observ ations\, we can derive accurate statistics for optical and microphysical c loud parameters\, providing vital data to refine currently over-approximat ed parameterizations.\n\nThe accuracy of these statistics strongly depends on our ability to estimate the distribution of ice crystal shapes\, which dictate the cloud's radiative effect. To date\, these ice crystal habits cannot be predicted solely from thermodynamic variables like temperature a nd vapor pressure.\n\nIn this seminar\, we will explore how decades of syn ergistic measurements\, spanning extreme sites like Antarctica and the Ata cama Desert to stratospheric balloons and future lunar infrastructure\, co mbined with a novel theoretical approach based on gauge theories\, offer a path to profoundly enhance the predictive capabilities of current climate models.\nhttps://indico.ific.uv.es/event/8524/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8524/ END:VEVENT BEGIN:VEVENT SUMMARY:Exploring the dark Universe with gravitational waves: new opportun ities from the precision frontier DTSTART;VALUE=DATE-TIME:20260326T113000Z DTEND;VALUE=DATE-TIME:20260326T123000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8399@indico.ific.uv.es DESCRIPTION:Speakers: Diego Blas (ICREA e IFAE)\nNote special location: Ma rie Curie Auditorium\n\n95% of the Universe's current energy density does not interact with light. Furthermore\, no light signal may arrive to us fr om the infancy of the Universe\, when it was opaque. The first direct dete ction of gravitational waves in 2015 opened the door to overcome these two limitations.\n\nThese waves may be produced from any violent-enough sourc e of energy and traverse the early Universe almost unimpeded. In this coll oquium I will describe how gravitational waves of different frequencies br ing information from the invisible Universe\, from primordial phase transi tions to mergers of black holes of different sizes.\n\nI will emphasize wh ich frequency bands are poorly covered today and show how quantum technolo gies in the precision frontier and precise astrophysical data may be the k ey to access them. This offers a unique opportunity to unveil the mysterie s of the dark Universe!\n\nLink to the recorded colloquium\n \n\n\nhttps: //indico.ific.uv.es/event/8399/ LOCATION:Auditorio Marie Curie (PCUV) URL:https://indico.ific.uv.es/event/8399/ END:VEVENT BEGIN:VEVENT SUMMARY:#StudentSeminar: Real-time event reconstruction to enhance new phy sics searches at LHCb DTSTART;VALUE=DATE-TIME:20260330T130000Z DTEND;VALUE=DATE-TIME:20260330T143000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8533@indico.ific.uv.es DESCRIPTION:Speakers: Jiahui Zhuo (IFIC)\nThe upgraded LHCb detector in Ru n 3 operates at five times the luminosity of Run 2. At this luminosity\, t he trigger yield of the former hardware trigger saturates for hadronic dec ay modes\, so it was replaced with a fully software-based trigger. To make this possible\, the entire event must be reconstructed in software at the full 30 MHz collision rate.\nThis talk presents the author's contribution s to the real-time event reconstruction in the GPU-based first-stage softw are trigger (HLT1) that processes data at 30 MHz. These contributions incl ude algorithms that cover different types of particle trajectories through the detector and\, for the first time in HLT1\, enable the real-time reco nstruction of particles decaying outside the vertex detector. This talk al so discusses the potential physics impact on long-lived particle searches\ , where these algorithms open sensitivity to decay channels previously ina ccessible at this trigger level.\nhttps://indico.ific.uv.es/event/8533/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8533/ END:VEVENT BEGIN:VEVENT SUMMARY:IFIC seminars: Monte Carlo Methods for neutrino-nucleus scattering DTSTART;VALUE=DATE-TIME:20260331T100000Z DTEND;VALUE=DATE-TIME:20260331T120000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8519@indico.ific.uv.es DESCRIPTION:Speakers: Noemi Rocco (IFIC)\nThis talk will provide an overvi ew of recent research efforts that use both classical and quantum Monte Ca rlo methods to achieve an accurate description of neutrino–nucleus scatt ering in the energy regime relevant for neutrino-oscillation experiments. I will discuss the Bayesian inversion of integral transforms of electrowea k response functions obtained from quantum Monte Carlo and Coupled-Cluster calculations. I will then present recent quantum Monte Carlo results for the ground-state properties and electroweak responses of 12 and 16O\, whic h are important for determining inclusive cross sections. I will also disc uss calculations of two-nucleon emission in exclusive channels induced by meson-exchange currents\, made possible by Monte Carlo sampling and partic ularly relevant for fully exploiting the capabilities of liquid-argon dete ctors. Finally\, I will present recent developments in the ACHILLES event generator for electron- and neutrino-nucleus scattering.\n \nhttps://indi co.ific.uv.es/event/8519/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8519/ END:VEVENT BEGIN:VEVENT SUMMARY:#StudentSeminar: Monte Carlo simulations of oxidative stress follo wing water radiolysis: Development of an enzyme kinetics extension for Gea nt4-DNA DTSTART;VALUE=DATE-TIME:20260402T130000Z DTEND;VALUE=DATE-TIME:20260402T143000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8534@indico.ific.uv.es DESCRIPTION:Speakers: Jose Manuel Calatayud Jordan (UV)\nGeant4 is a Monte Carlo toolkit for simulating the interaction of particles with matter\, w idely used in many fields of physics. The Geant4-DNA extension tracks radi ation interactions in liquid water down to the eV scale and models the sub sequent production and diffusion of reactive species up to approximately 1 microsecond\, making it particularly suited for studying radiation effect s on DNA.\n\nHowever\, the redox imbalance caused by the excess of reactiv e oxygen species (ROS) produced during radiolysis or the enzymatic respons e that restores cellular homeostasis are not currently accounted for. An e nzymatic kinetics extension is presented that adds a fourth simulation sta ge\, chaining directly after the chemistry stage\, to model the ROS scaven ging pathways and the time evolution of all molecular species involved in the enzymatic reactions. The module provides seven solver modes including stochastic and hybrid approaches\, a library of 12 biological pathway netw orks\, and environmental modulation of reaction rates via pH and temperatu re.\n\nIn this talk I will first review the physics of radiation interacti on and water radiolysis\, then introduce the oxidative stress response and how enzymatic regulation is modelled within the new module. I will presen t the validation of the solvers against analytical benchmarks\, followed b y applications to cell-scale irradiation simulations. Finally\, a possible application to the investigation of the FLASH effect\, whose dose-rate de pendence is not explained by standard radiobiology\, will be discussed.\nh ttps://indico.ific.uv.es/event/8534/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8534/ END:VEVENT BEGIN:VEVENT SUMMARY:IFIC seminar: Subleading contributions to inclusive penguin decays and refactorisation DTSTART;VALUE=DATE-TIME:20260414T100000Z DTEND;VALUE=DATE-TIME:20260414T110000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8516@indico.ific.uv.es DESCRIPTION:Speakers: Tobias Hurth (Universität Mainz)\nThe inclusive pen guin decays \, which can be measured with great precision at Belle II\, wi ll shed light on the so-called B-anomalies. The subleading resolved contri butions represent one of the largest uncertainties of these inclusive deca ys. Presently radiative corrections are calculated within soft-collinear e ffective theory  to reduce them significantly. Here a factorisation theor em for the resolved contributions is crucial and the new method of refacto risation plays an important role. \nhttps://indico.ific.uv.es/event/8516/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8516/ END:VEVENT BEGIN:VEVENT SUMMARY:#StudentSeminar: PETit\, first prototype of PETALO (Positron Emiss ion TOF Apparatus with Liquid xenOn) DTSTART;VALUE=DATE-TIME:20260417T080000Z DTEND;VALUE=DATE-TIME:20260417T093000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8544@indico.ific.uv.es DESCRIPTION:Speakers: Nerea Salor Iguiñiz\nA Positron Emission Tomography (PET) scanner is a device widely used in \nhospitals to obtain 3D images of the metabolic activity of the body. It \nis used for cancer detection \, as well as for heart and brain diseases\, \nand other physiological pr ocesses.\n\nPETALO is a project that consists of a PET system based on liq uid xenon \n(LXe) instead of crystals as the scintillator material. LXe i s a very \ngood candidate for use in PET due to its scintillation propert ies: high \nlight yield and fast decay time. PETALO uses SiPMs for readou t and fast \nelectronics from PETsys to be applied in TOF-PET technology. \n\nIn this talk\, I will first introduce the principles of a PET scanner\ , \nand then I will focus on explaining how our first prototype PETit\,  \ndeveloped following the PETALO concept\, works. Finally\, I will present  \nthe results on energy and time resolution obtained with this prototype \, \nas well as the problems we faced in achieving them.\nhttps://indico. ific.uv.es/event/8544/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8544/ END:VEVENT BEGIN:VEVENT SUMMARY:#Student Seminar: How Hot and Excited Can Dark Matter Make the Ear ly Universe? Lessons from the CMB and 21-cm Signal DTSTART;VALUE=DATE-TIME:20260417T130000Z DTEND;VALUE=DATE-TIME:20260417T150000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8550@indico.ific.uv.es DESCRIPTION:Speakers: Dominic Agius (IFIC - University of Valencia)\nCosmo logical probes of the early Universe offer a powerful way to test dark mat ter scenarios that modify its thermal and ionization history. The cosmic m icrowave background already places some of the strongest constraints on mo dels involving exotic energy injection\, while upcoming 21-cm observations promise a new window into the cosmic dawn and the epoch of reionization. These measurements are also sensitive to the uncertain properties of the f irst stars and galaxies\, making the interpretation of dark matter signatu res especially challenging.\n\nIn this talk\, I will review current cosmic microwave background constraints on annihilating dark matter and primordi al black holes\, and then discuss how astrophysical uncertainties impact f orecast constraints from the 21-cm signal.\nhttps://indico.ific.uv.es/even t/8550/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8550/ END:VEVENT BEGIN:VEVENT SUMMARY:#StudentSeminar: Total absorption spectroscopy in the vicinity of 100Sn DTSTART;VALUE=DATE-TIME:20260420T130000Z DTEND;VALUE=DATE-TIME:20260420T150000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8537@indico.ific.uv.es DESCRIPTION:Speakers: Jose Antonio Victoria\nhttps://indico.ific.uv.es/eve nt/8537/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8537/ END:VEVENT BEGIN:VEVENT SUMMARY:The quantum nature of strong fields DTSTART;VALUE=DATE-TIME:20260421T100000Z DTEND;VALUE=DATE-TIME:20260421T113000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8374@indico.ific.uv.es DESCRIPTION:Speakers: Sebastián Franchino-Viñas (CONICET (Argentina) and Université de Tours (France))\nAbstract: The interaction of quantum fiel ds with classical backgrounds gives rise to a variety of fundamental effec ts. Here we will review some recent theoretical and experimental developme nts of quantum field theory in the presence of strong backgrounds\, be the m electromagnetic or gravitational\, of relevance for example in the descr iption of the early universe and in the presence of intense lasers. In thi s scenario\, we will describe the prediction and current quest of effects such as birefringence and pair creation in extreme environments.\nhttps:// indico.ific.uv.es/event/8374/ LOCATION:4-4-4426 - Seminari Física Teòrica (Campus Burjassot) URL:https://indico.ific.uv.es/event/8374/ END:VEVENT BEGIN:VEVENT SUMMARY:#StudentSeminar: Search for heavy Higgs boson decaying into a pair of Tau leptons with the ATLAS detector. DTSTART;VALUE=DATE-TIME:20260422T080000Z DTEND;VALUE=DATE-TIME:20260422T090000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8568@indico.ific.uv.es DESCRIPTION:Speakers: Arya Aikot\nExtensions of the Standard Model\, such as the Minimal Supersymmetric Standard Model (MSSM)\, predict an extended Higgs sector with additional neutral heavy Higgs bosons (H/A). These parti cles can have enhanced couplings to down-type fermions at large tan⁡β.\ n\nThis talk presents a search for heavy Higgs bosons decaying to tau lept on pairs in the fully hadronic (τ-had τ-had​) final state using ATLAS Run~2 and Run~3 data. The analysis uses the topology of two high-pT taus produced back-to-back in the transverse plane. The dominant multijet backg round is estimated using a data-driven method\, while other backgrounds ar e modeled using simulation. A statistical analysis is performed using the total transverse mass distribution\, and the results are interpreted as up per limits on the production cross section times branching ratio.\nhttps:/ /indico.ific.uv.es/event/8568/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8568/ END:VEVENT BEGIN:VEVENT SUMMARY:Topical seminar: "Signal-to-Noise as a Transport Problem: Stein Ge ometry and Langevin Dynamics" DTSTART;VALUE=DATE-TIME:20260422T100000Z DTEND;VALUE=DATE-TIME:20260422T110000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8543@indico.ific.uv.es DESCRIPTION:Speakers: Pietro Butti (U. Southern Denmark\, QTC)\nAbstract:  We address the signal-to-noise problem in lattice field theory by recast ing it as a problem in variance-optimal transport. The exponential degrada tion of the signal-to-noise ratio is identified as a consequence of poor o verlap between the base and target distributions in a source reweighting s cheme. We introduce an infinitesimal transport map and derive a perturbati ve expansion of the KL divergence that determines the optimal velocity fie ld. The first-order term vanishes by Stein's identity\, and the problem re duces to a Poisson equation for the generator of overdamped Langevin dynam ics. For interacting theories\, the Feynman–Kac formula provides a forma l solution\, establishing a connection to linear response theory and the f luctuation-dissipation theorem. We present preliminary numerical results f or scalar lattice field theories.\nhttps://indico.ific.uv.es/event/8543/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8543/ END:VEVENT BEGIN:VEVENT SUMMARY:#Student Seminar: Implications of flavor symmetries for baryon-nu mber-violating nucleon decay DTSTART;VALUE=DATE-TIME:20260422T130000Z DTEND;VALUE=DATE-TIME:20260422T134500Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8560@indico.ific.uv.es DESCRIPTION:Speakers: Arnau Bas i Beneito (Institut de Física Corpuscular (IFIC\, CSIC))\nBaryon number is an accidental symmetry of the Standard M odel\, and its violation would be a clear sign of new physics\, with nucle on decay providing its most striking experimental signature. In this semin ar\, I will discuss how flavor symmetries can guide the study of baryon-nu mber-violating (BNV) effects in the SMEFT. After briefly reviewing the mai n nucleon-decay signatures and the relevant dimension-six operators\, I wi ll present their classification under different flavor-symmetry assumption s and the resulting phenomenology. In particular\, I will show that in som e flavor scenarios the interplay with tiny neutrino masses allows proton-d ecay bounds to be compatible with BNV scales in the multi-TeV range. I wil l also comment on simple UV completions.\nhttps://indico.ific.uv.es/event/ 8560/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8560/ END:VEVENT BEGIN:VEVENT SUMMARY:#Student Seminar: Analogue Gravity in Bose Einstein Condensates DTSTART;VALUE=DATE-TIME:20260422T134500Z DTEND;VALUE=DATE-TIME:20260422T143000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8559@indico.ific.uv.es DESCRIPTION:Speakers: Daniel Penalver Mares (IFIC (UV-CSIC))\nBose Einstei n Condensates undergoing transonic motion have been shown to present a spo ntaneous emission of phonons. In this talk we will see how this is derived and why this process is analogue to Hawking Radiation. In order to unders tand the physical idea behind this\, we will study a simple one-dimensiona l geometry with a stepwise homogeneous flow which allows for a fully analy tical treatment.\nhttps://indico.ific.uv.es/event/8559/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8559/ END:VEVENT BEGIN:VEVENT SUMMARY:#Student Seminar: Two-dimensional semiclassical black holes: evapo ration\, backreaction\, and singularity resolution DTSTART;VALUE=DATE-TIME:20260422T143000Z DTEND;VALUE=DATE-TIME:20260422T151500Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8561@indico.ific.uv.es DESCRIPTION:Speakers: Javier Marañon González (IFIC (UV-CSIC))\nQuantum field theory in curved spacetime provides a powerful framework to study qu antum effects in cosmology and black hole physics. Unlike in flat spacetim e QFT\, curvature requires renormalization already at the level of the fre e theory. This yields a renormalized stress-energy tensor for quantum fiel ds on a given background\, capturing effects such as Hawking radiation of black holes and particle production in expanding universes. The next step is to include the effect of quantum fields on spacetime geometry\, the so- called backreaction problem.\n\nIn this seminar\, I introduce this framewo rk\, highlight its main challenges\, and present effective two-dimensional black hole models that address them while retaining the essential quantum features. In two dimensions\, the renormalized stress-energy tensor can b e written in closed form in terms of the metric\, transforming the semicla ssical equations into a second-order system of PDEs. This makes it possibl e to study the full dynamics\, including backreaction.\nhttps://indico.ifi c.uv.es/event/8561/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8561/ END:VEVENT BEGIN:VEVENT SUMMARY:IFIC SPECIAL Seminar: Computing the Strength of the Strong Force: Lattice Methods for Precision QCD DTSTART;VALUE=DATE-TIME:20260423T100000Z DTEND;VALUE=DATE-TIME:20260423T110000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8566@indico.ific.uv.es DESCRIPTION:Speakers: Alberto Ramos (IFIC CSIC-UV)\n\nThe strong nuclear f orce binds quarks into protons and neutrons\, and binds these nucleons int o atomic nuclei. Despite its fundamental importance\, precisely determinin g its strength has remained challenging because quarks are confined within hadrons and cannot be isolated for direct measurement.\n\nIn this talk I will review the efforts of the ALPHA collaboration to compute the strong c oupling using lattice quantum chromodynamics\, a first-principles numerica l approach that requires no model assumptions about hadron structure. Rath er than focusing on computational details\, I will emphasize the key theor etical ideas that have enabled record precision with controlled uncertaint ies.\n \nThis result bridges two regimes: the low-energy domain where quar ks are confined into hadrons\, and the high-energy regime where perturbati ve expansions apply. The improved precision eliminates a significant sourc e of theoretical uncertainty in collider physics analyses\, enabling more stringent tests of the Standard Model.\n\nPublication in Nature: https://w ww.nature.com/articles/s41586-026-10339-4\n\nIFIC news: https://webific.i fic.uv.es/web/content/la-revista-nature-publica-el-cálculo-más-preciso-d e-la-constante-de-acoplamiento-fuerte-con\n\n \nhttps://indico.ific.uv.es /event/8566/ LOCATION:Salón de Actos - Edificio Cabecera (PCUV) URL:https://indico.ific.uv.es/event/8566/ END:VEVENT BEGIN:VEVENT SUMMARY:#Student Seminar: Is dark matter hiding in plain sight? DTSTART;VALUE=DATE-TIME:20260423T130000Z DTEND;VALUE=DATE-TIME:20260423T150000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8549@indico.ific.uv.es DESCRIPTION:Speakers: Aurelio Amerio (IFIC)\nRoughly 85% of all matter in the universe doesn't seem to interact with electromagnetic radiation\, mak ing it dark and seemingly invisible\; thus\, we call it dark matter. Yet\, we have a wealth of gravitational and cosmological phenomena pointing to its existence—phenomena that are not entirely and satisfactorily explain ed by alternative theories.\n\nIf dark matter annihilates or decays into S tandard Model particles\, it could produce a detectable gamma-ray signal\, and gamma rays will be the protagonists of this talk.\n\nIn this seminar\ , I will talk about how we have managed to NOT find dark matter signals across a broad series of searches. We will explore some of the most compel ling targets in the gamma-ray band\, including the Galactic Center\, dark matter subhalos\, and the unresolved gamma-ray background.\n\nThe low-hang ing fruit has already been picked\, and we didn't manage to find dark matt er where we looked for it first. Today\, I will show you how advanced mach ine learning and statistical techniques can extract additional information where seemingly there is only noise. Maybe dark matter is hiding in plai n sight\, but what more do we need to do to actually see it?\nhttps://indi co.ific.uv.es/event/8549/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8549/ END:VEVENT BEGIN:VEVENT SUMMARY:James Keeble\, "Topical Seminar: Neural Quantum States for Nuclei: Testing the Limits of Classical Computing" DTSTART;VALUE=DATE-TIME:20260427T100000Z DTEND;VALUE=DATE-TIME:20260427T113000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8557@indico.ific.uv.es DESCRIPTION:Speakers: James Keeble (Bielefeld University)\n\nIn this talk\ , I will discuss the application of so-called Neural Quantum States\, whic h use machine-learning techniques to represent quantum many-body wave func tions. These approaches have been shown to represent tensor-network states and states with volume-law entanglement efficiently. However\, the key pr operty underlying the limitations of Neural Quantum State techniques remai ns an open question.\nWithin quantum information theory\, among all possib le unitary transformations that can be applied to an \nN-qubit state\, the re exists a subgroup known as the Clifford unitaries. Although these trans formations can generate entanglement\, they are entirely classically simul able and therefore provide no quantum advantage. As a result\, quantifying the non-stabilizerness of a given computational approach is important for assessing its expressibility in representing arbitrary quantum many-body states.\nI will focus in particular on recent results highlighting the lim itations of Neural Quantum States in representing the ground-state wave fu nctions of atomic nuclei in the nuclear shell model within variational Mon te Carlo calculations\, thereby testing the limits of classical computing in strongly correlated quantum systems.\nhttps://indico.ific.uv.es/event/8 557/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8557/ END:VEVENT BEGIN:VEVENT SUMMARY:#StudentSeminar:Electronic and optical properties of semiconductin g materials: A first-principles approach DTSTART;VALUE=DATE-TIME:20260427T130000Z DTEND;VALUE=DATE-TIME:20260427T143000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8564@indico.ific.uv.es DESCRIPTION:Speakers: Jorge Cervantes Villanueva (UV)\nTítulo: "Electroni c and optical properties of semiconducting materials: A first-principles a pproach"\n\nAbstract: "The study of crystalline semiconductors remains a c ornerstone of modern materials science\, driven by the demand for novel op toelectronic devices and emerging quantum technologies. To model these mat erials accurately\, researchers rely on ab initio (first-principles) calcu lations. By solving the Many-Body Schrödinger equation using only fundame ntal physical constants and atomic structures (without empirical fitting p arameters) this approach provides a predictive\, unbiased description of m aterial properties that can be directly validated by experiments.\n\nIn th is seminar\, I will provide a pedagogical overview of the state-of-the-art theoretical frameworks used to determine the electronic and optical prope rties of semiconductors. We will discuss the transition from ground-state properties via Density Functional Theory (DFT) to quasiparticle excitation s using the GW approximation\, and finally\, the description of excitonic effects through the Bethe-Salpeter Equation (BSE). Furthermore\, we will t ouch upon non-equilibrium optical properties by exploring the equation of motion for the density matrix. By bridging theoretical foundations with re al-world results\, this seminar aims to demonstrate the powerful capabilit y of first-principles methods to predict the behavior of semiconducting ma terials."\n \nhttps://indico.ific.uv.es/event/8564/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8564/ END:VEVENT BEGIN:VEVENT SUMMARY:IFIC Seminar DTSTART;VALUE=DATE-TIME:20260428T100000Z DTEND;VALUE=DATE-TIME:20260428T120000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8545@indico.ific.uv.es DESCRIPTION:Speakers: Yanina Biondi (Karlsruhe Institute of Technology (KI T))\nThe standard model of particle physics has proven to be a robust mach inery in describing processes involving the smallest components of our Uni verse. Despite its success\, unanswered questions remain: What is the mech anism for neutrinos to acquire mass? Why is Charge-Parity symmetry highly conserved in QCD? What is the reason for the particle-antiparticle asymmet ry in the Universe? And what is really dark matter?\n\n\nExtremely sensiti ve detectors placed deep underground\, such as dual-phase liquid xenon tim e projection chambers\, can aid to answer these questions. In particular\, the XLZD Observatory is a planned 80-tonne liquid xenon time projection c hamber\, with high sensitivity to a plethora of rare interactions of matte r. Low background terrestrial experiments are complementary to searches in accelerators\, in an exciting research field that spans particle\, astro- and nuclear physics.\nhttps://indico.ific.uv.es/event/8545/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8545/ END:VEVENT BEGIN:VEVENT SUMMARY:Ryan Plestid\, "Topical seminar: Manifest gauge invariance and old -fashioned perturbation theory" DTSTART;VALUE=DATE-TIME:20260429T080000Z DTEND;VALUE=DATE-TIME:20260429T093000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8555@indico.ific.uv.es DESCRIPTION:Speakers: Ryan Plestid (CERN)\nWhen dealing with bound states (e.g.\, atoms or nuclei) many calculations are most efficiently carried ou t using old-fashioned perturbation theory. It is difficult\, however\, to see how gauge invariance manifests at the level of the amplitude (this is related to the non-conservation of energy in OFPT). \n\nIn this talk I w ill explain how a partial-fraction trick can reorganize amplitudes into a form that is manifestly gauge invariant. Remarkably\, when applied to the Compton tensor\, the resulting amplitude decomposes into four separate ga uge invariant pieces that are naturally organized around a heavy-mass exp ansion. I will comment on potential implications for atomic\, nuclear\, an d hadronic physics applications involving QED. \nhttps://indico.ific.uv.e s/event/8555/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8555/ END:VEVENT BEGIN:VEVENT SUMMARY:Topical Seminar: Stellar cooling limits on new scalars and extra d imensions DTSTART;VALUE=DATE-TIME:20260429T130000Z DTEND;VALUE=DATE-TIME:20260429T140000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8563@indico.ific.uv.es DESCRIPTION:Speakers: Anton Sokolov (Oxford University)\nStellar evolution is known to serve as a sensitive probe of physics beyond the Standard mod el (BSM). Using a bottom-up effective field theory perspective\, I will di scuss the stellar cooling effects associated to Higgs-portal scalars and l arge extra dimensions\, both of which arise naturally in the context of ma ny BSM scenarios. Employing the formalism of thermal field theory to compu te in-medium self-energies and mixing rates\, we will see that scalars and KK gravitons with masses smaller than the plasma frequency in the stellar core can be efficiently produced by resonant mixing with in-medium electr omagnetic excitations\, and that this previously neglected effect gives th e dominant robust contribution to supernova and/or red giant cooling. I wi ll discuss the resulting constraints on new scalars and extra dimensions\, together with the implications for future experiments and observations.\n https://indico.ific.uv.es/event/8563/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8563/ END:VEVENT BEGIN:VEVENT SUMMARY:Searches for exotic interactions in nuclear beta decay DTSTART;VALUE=DATE-TIME:20260430T103000Z DTEND;VALUE=DATE-TIME:20260430T113000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8547@indico.ific.uv.es DESCRIPTION:Speakers: Oscar Naviliat-Cuncic \nNuclear beta decay is possib ly the most investigated of all weak interaction processes. It has served in the past as a convenient way through which some of the fundamental prop erties of the weak interaction were established. Beta decay provides still today a powerful testing ground for models of nuclear structure and offer s a window to search for new physics beyond the standard electroweak model in processes involving the lightest quarks.\n\nIn this presentation\, we will review the place of nuclear beta decay in searches for new physics hi ghlighting some remarkable results. The presentation will also discuss cur rent activities involving high-precision measurements of beta-decay observ ables.\n\nZoom link\n\n\n\n \nhttps://indico.ific.uv.es/event/8547/ LOCATION:Salón de Actos (PCUV) URL:https://indico.ific.uv.es/event/8547/ END:VEVENT BEGIN:VEVENT SUMMARY:Ivan Martinez Soler\, "Topical seminar: TBA" DTSTART;VALUE=DATE-TIME:20260505T080000Z DTEND;VALUE=DATE-TIME:20260505T090000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8546@indico.ific.uv.es DESCRIPTION:https://indico.ific.uv.es/event/8546/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8546/ END:VEVENT BEGIN:VEVENT SUMMARY:Topical Seminar: TBA DTSTART;VALUE=DATE-TIME:20260507T100000Z DTEND;VALUE=DATE-TIME:20260507T113000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8558@indico.ific.uv.es DESCRIPTION:Speakers: Aritra Gupta\nhttps://indico.ific.uv.es/event/8558/ LOCATION: URL:https://indico.ific.uv.es/event/8558/ END:VEVENT BEGIN:VEVENT SUMMARY:Studying the Fermi surface and Spin-Orbit Splitting in 34Si via (p \,d) DTSTART;VALUE=DATE-TIME:20260514T090000Z DTEND;VALUE=DATE-TIME:20260514T110000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8551@indico.ific.uv.es DESCRIPTION:Speakers: Raquel Nicolás del Alamo (University of Padova)\nWe performed the 34Si(p\,d) direct transfer reaction at GANIL using a 50 MeV /A fragmentation beam with the MUST2+EXOGAM+ZDD+CATS setup. The experiment aims to explore the single-particle neutron orbital structure and the Fer mi surface of 34Si. We also investigate the spin-orbit splitting between t he d3/2 and d5/2 orbitals.\nhttps://indico.ific.uv.es/event/8551/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8551/ END:VEVENT BEGIN:VEVENT SUMMARY:Neutrino physics from gamma-ray spectroscopy DTSTART;VALUE=DATE-TIME:20260518T090000Z DTEND;VALUE=DATE-TIME:20260518T110000Z DTSTAMP;VALUE=DATE-TIME:20260421T050000Z UID:indico-event-8552@indico.ific.uv.es DESCRIPTION:Speakers: Damiano Stramaccioni (University of Padova & LNL-IN FN\, Italia)\nNuclear matrix elements (NMEs) play a central role in descri bing weak-interaction processes such as inverse beta decay (IBD) and neutr inoless double-beta decay (0νββ). These processes are essential for pro bing neutrino properties and exploring physics beyond the Standard Model. However\, reliable determination of NMEs remains a major challenge in nucl ear physics.\nA novel experimental strategy seeks to constrain NMEs throug h the study of electromagnetic (EM) transitions from isobaric analog state s (IAS)\, providing an indirect but powerful probe of the relevant nuclear structure components.\nIn this presentation\, I will discuss the joint ef forts of the LNL-CSIC group toward this goal\, highlighting ongoing experi ments\, complementary methodological approaches\, and the broader implicat ions of this program for reducing theoretical uncertainties in NME calcula tions.\nhttps://indico.ific.uv.es/event/8552/ LOCATION:1001-Primera-1-1-1 - Paterna. Seminario (Universe) URL:https://indico.ific.uv.es/event/8552/ END:VEVENT END:VCALENDAR