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Calendar of Physics Talks Vienna
| The Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy |
| Speaker: | Stephan Malbrunot-Ettenauer (TRIUMF, Vancouver, Canada / University of Toronto, Canada / CERN, ISOLDE, Geneva, Switzerland) |
| Abstract: | Exotic, short-lived radionuclides serve as intriguing probes for a diverse spectrum of physics questions ranging from nuclear astrophysics to fundamental symmetries. In particular, unraveling the complex nuclear many-body problem from first principles remains a formidable task for contemporary nuclear physics.
[...]
However, in order to test nuclear theory very far away from stability, i.e. in radionuclides with "extreme" proton-to-neutron ratios, new methods with increased experimental sensitivity have the be envisioned. To this end, we have developed the Multi Ion Reflection Apparatus for Collinear Laser Spectroscopy (MIRACLS), ... [full abstract available here: https://indico.cern.ch/event/1168391/] |
| Date: | Wed, 08.06.2022 |
| Time: | 16:00 |
| Duration: | 60 min |
| Location: | Webinar: https://oeaw-ac-at.zoom.us/j/92244066405?pwd=U0c2V0lFQndTVS9VOGxPbnA1Y05tUT09 |
| Contact: | Eberhard Widmann, Martin Simon |
| Gauge/gravity duality and the anomalous magnetic moment of the muon |
| Speaker: | Anton Rebhan (TU Wien) |
| Abstract: | Currently there is a discrepancy between the Standard Model prediction for the anomalous magnetic moment of the muon and the experimental value above 4 standard deviations according to the Muon g-2 Theory Initiative White Paper. With further experimental improvements expected in the near future, it is imperative to further sharpen the theoretical prediction
which is limited by uncertainties of QCD contributions. I describe the recent progress made in using gauge/gravity duality ("holographic QCD")
to study hadronic contributions to the anomalous magnetic moment of the muon, in particular the hadronic light-by-light scattering contribution,
where the short-distance constraints associated with the axial anomaly are notoriously difficult to satisfy in hadronic models but are implemented naturally in simple ("bottom-up") holographic QCD models. |
| Date: | Thu, 09.06.2022 |
| Time: | 15:00 |
| Duration: | 60 min |
| Location: | Gravitationsphysik, Waehringer Strasse 17, Seminarraum A, 2. Stock - ZOOM https://univienna.zoom.us/j/6540036841?pwd=SytyVkZJZzNyRG9lMm13ejlHeHRRUT09 |
| Contact: | P. Chrusciel, D. Fajman |
| Semiclassical gravity and the Casimir effect |
| Speaker: | Ignacio Reyes (Amsterdam University) |
| Abstract: | Understanding the role of the backreaction of quantum fields during gravitational collapse is an important yet difficult problem. Here I will present a simpler model where the backreaction of the radiation is easily solvable, and examine what this can teach us about the formation (or not) of horizons and the violation of energy conditions. I will also explain how this is closely connected to experiments done in the last decade in Casimir physics, and discuss the challenges ahead. |
| Date: | Thu, 09.06.2022 |
| Time: | 16:30 |
| Duration: | 60 min |
| Location: | Freihaus, seminar room 9th floor |
| Contact: | Ben Koch, Iva Lovrekovic |
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