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X-WR-CALNAME:Department of Theoretical Physics
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X-WR-CALDESC:Events for Department of Theoretical Physics
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TZID:Europe/Ljubljana
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DTSTART:20260329T010000
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DTSTART:20261025T010000
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DTSTART;TZID=Europe/Ljubljana:20260602T110000
DTEND;TZID=Europe/Ljubljana:20260602T120000
DTSTAMP:20260604T024001
CREATED:20260520T143543Z
LAST-MODIFIED:20260602T095111Z
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SUMMARY:Ezequiel Alvarez: Leveraging Biased Simulations with Bayesian inference
DESCRIPTION:Scientific measurements often yield data that are mixtures of signal and one or more background components. When class templates (e.g.\, simulation-based priors) are biased or imprecise\, they are typically treated as nuisance systematics. We take a different route: by embedding imprecise priors in a hierarchical Bayesian mixture model and combining them with observed mixed data via Bayesian machine learning\, we adapt class shapes toward the true distributions and obtain an unbiased posterior estimate of the signal fraction with calibrated uncertainties. In practice this lets us exploit simulation even when it is imperfect—improving template fidelity during inference. We demonstrate the approach on a collider-physics example (di-Higgs → 4b at the LHC)\,  and show how the same framework can enhance and unbias the ABCD background-estimation method.  The framework\, Template-Adapted Mixture Model (TAMM\, arXiv:2604.022219)\, is straightforward to implement\, scales to high-dimensional and complex distributions\, and is broadly applicable across HEP\, astrophysics\, cosmology\, and any domain with mixed data and imperfect priors.\nhttps://indico.ijs.si/event/3833/
URL:https://web-f1.ijs.si/event/ezequiel-alvarez-2/
LOCATION:F1 tea room
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BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20260618T140000
DTEND;TZID=Europe/Ljubljana:20260618T150000
DTSTAMP:20260604T024001
CREATED:20260119T130431Z
LAST-MODIFIED:20260604T002029Z
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SUMMARY:Ekaterina Poliukhina (TBA)
DESCRIPTION:https://indico.ijs.si/event/3599/
URL:https://web-f1.ijs.si/event/stephane-jedele-tba/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
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BEGIN:VEVENT
DTSTART;TZID=Europe/Ljubljana:20260716T110000
DTEND;TZID=Europe/Ljubljana:20260716T120000
DTSTAMP:20260604T024001
CREATED:20260528T013639Z
LAST-MODIFIED:20260604T003533Z
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SUMMARY:Maximilian Bachmaier: The slingshot effect and its cosmological implications
DESCRIPTION:In my talk\, I will present the so-called slingshot effect. It represents a general phenomenon that occurs when a localized source\, such as a magnetic monopole\, quark\, or a D-brane\, crosses a wall separating the confined (Higgsed) and unconfined (Coulomb) phases. The crossover is accompanied by a stretched string that confines the source to the wall. The string tension accelerates the source towards the wall as sort of a slingshot. The effect can take place in different setups\, such as phase transitions leading to both electric and magnetic confinement\, as well as in string cosmology involving D-branes. I will discuss the role of this phenomenon in sourcing gravitational waves. \nhttps://indico.ijs.si/event/3895/
URL:https://web-f1.ijs.si/event/maximilian-bachmaier-the-slingshot-effect-and-its-cosmological-implications/
LOCATION:A/1-106 – Seminarska soba fizike (F5) (Jamova)
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