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Calendar of Physics Talks Vienna
| „Linear versus Non-linear Supersymmetry“ |
| Speaker: | Niccolò Cribiori (TU Wien) |
| Abstract: | If realized in Nature, supersymmetry has to be spontaneously broken at some energy scale above the TeV. When spontaneously broken, it can become non-linearly realized. In this talk I will analyze the properties of models with spontaneously broken and non-linearly realized, global and local supersymmetry in four dimensions. A systematic procedure is going to be given for constructing generic effective theories with any desired spectrum content and applications to supergravity and de Sitter uplifts will be discussed.
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| Date: | Tue, 06.11.2018 |
| Time: | 13:45 |
| Location: | Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | S. Fredenhagen, D. Grumiller, |
| New Physics in the Higgs Sector – An Effective Theory Approach |
| Speaker: | Gerhard Buchalla (Uni München) |
| Abstract: | The properties of the Higgs boson will be investigated with increasing precision during the coming years in order to probe the dynamics of electroweak symmetry breaking.While the Higgs couplings are compatible with the Standard Model at present, deviations of order 10% or more are currently still allowed. With the precision goal for Higgs couplings of a few percent at LHC Run II and III, it will be possible to test
a scenario, in which anomalous Higgs couplings are the dominant effects of new physics in the electroweak sector. Such a scenario leads to an effective field theory (EFT) that has the form of an electroweak chiral Lagrangian, including a light Higgs. We discuss the systematics and the power counting of this approach, its relation to an EFT organized in
terms of the canonical dimension of operators, and phenomenological applications. We discuss in particular how the . . . . |
| Date: | Tue, 06.11.2018 |
| Time: | 16:15 |
| Duration: | 60 min |
| Location: | Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | A. Hoang, H. Neufeld |
| Non-spherically symmetric collapse in asymptotically AdS spacetimes |
| Speaker: | Pau Figueras (Queen Mary College, London) |
| Abstract: | im Rahmen des Literaturseminars für Gravitationsphysik: In this talk I’m going to present our recent studies on gravitational collapse in asymptotically anti-de Sitter spacetimes away from spherical symmetry. Starting from initial data sourced by a massless real scalar field, we solve the Einstein equations with a negative cosmological constant in five spacetime dimensions and obtain a family of non-spherically symmetric solutions, including those that form two distinct black holes on the axis. We find that these configurations collapse faster than spherically symmetric ones of the same mass and radial compactness. Similarly, they require less mass to collapse within a fixed time. |
| Date: | Thu, 08.11.2018 |
| Time: | 14:00 |
| Duration: | 60 min |
| Location: | Arbeitsgruppe Gravitation, Währinger Strasse 17, Raum 218, 2. Stock, 1090 Wien |
| Contact: | P.T. Chrusciel, D. Fajman |
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