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Calendar of Physics Talks Vienna
| From baby universes to black holes in 2d flat space gravity |
| Speaker: | Charles Marteau (UBC) |
| Abstract: | In this talk I will discuss a simple model of 2d flat gravity that derives from the CGHS model. Its simplicity allows one to compute exactly the Euclidean gravitational path integral. When one allows for more than one thermal boundary, the model is dual to an ensemble of theories, I will discuss this ensemble in detail. The ensemble description is equivalent to a description in terms of baby universe Hilbert space in which one can build the so-called alpha-states, states in which the theory is now dual to only one theory. I will end the presentation by describing how this 2d model appears as a universal sector in the near-horizon dynamics of non-extremal black holes. |
| Date: | Tue, 11.05.2021 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | https://moodle.univie.ac.at/mod/bigbluebuttonbn/guestlink.php?gid=x8o6ILSKJuC9 |
| Contact: | Céline Zwikel |
| Hadronic contributions to the muon g-2 in a dispersive approach |
| Speaker: | Bai-Long Hoid (AEC, University of Bern) |
| Abstract: | Shortly after the first released results from the muon g-2 experiment at Fermilab solidifying the tension with the theory prediction,
we take this occasion to discuss the dispersive analysis of some hadronic vacuum polarisation and hadronic light-by-light scattering contributions to the anomalous magnetic moment of the muon. |
| Date: | Tue, 11.05.2021 |
| Time: | 16:00 |
| Duration: | 60 min |
| Location: | https://univienna.zoom.us/j/93104933847?pwd=N0FrL0E1UHlkQWRhQTlQODVkZ3kvUT09 Meeting ID: 931 0493 3847 Passcode: 674625 |
| Contact: | A. Hoang, P. Stoffer |
| Testing the Standard Model effectively at the LHC |
| Speaker: | Robert Schöfbeck (HEPHY Institut für Hochenergiephysik der ÖAW) |
| Abstract: | While the standard model (SM) of particle physics successfully describes most phenomena at the high energy frontier, it is unclear whether its validity extends beyond that. Potential deviations lead to observable discrepancies in the highly energetic tails in event samples with top quarks, massive gauge bosons, and the Higgs boson.Recently, SM effective field theory has been used to tackle this problem and systematically exploit such measurements' cross-talk. I review the recent experimental results, their impact on our description of the TeV scale, and provide an outlook for the future. |
| Date: | Fri, 14.05.2021 |
| Time: | 10:00 |
| Duration: | 45 min |
| Location: | on-line |
| Contact: | Jochen Schieck |
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