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Calendar of Physics Talks Vienna
| Confining gauge theories on R3 X S1 with Higgs |
| Speaker: | Hiromishi Nishimura ((Universität Bielefeld)) |
| Abstract: | I will review some aspects of confining gauge theories on R3 X S1. Yang-Mills theory with certain center-stabilizing potentials is in the confined phase at small S1, and we can study confinement analytically using the semiclassical methods. Extending the theories with adjoint scalar fields, we show that there is a new type of confined phase and that the topological objects in this phase generalize BPS and KK monopoles, which are constituents of instantons. I will also argue how one may be able to take the theory at large R3 X S1 by the Poisson resummation. |
| Date: | Tue, 04.06.2013 |
| Time: | 12:30 |
| Duration: | 60 min |
| Location: | Vienna University of Technology (Freihaus Wiedner Hauptstasse 8-10 , 10th floor, Sem 136) |
| Contact: | stetina@hep.itp.tuwien.ac.at |
| "Der thermodynamische Limes in der Konstruktion Euklidischer Quantenfelder" |
| Speaker: | Jan Schlemmer (Mathematische Physik) |
| Abstract: | Am Ende der Konstruktion von wechselwirkenden Quantenfeldern im euklidischen
Rahmen muss man die Einschränkung der Theorie auf endliches Volumen wieder entfernen.
In diesem Vortrag soll es um den zweiten Teil einer Methode gehen, in der
dieser Limes unter Verwendung von Korrelationsungleichungen kontrolliert wird.
Für die Schwingerfunktionen der Theorie in endlichem Volumen werden
im Vortrag volumenunabhängige obere Schranken dargestellt, welche die Konvergenz
der Schwingerfunktionen im thermodynamischen Limes garantieren. Wichtigstes Werkzeuge
dabei ist ein Analogon zum Druck in der statistischen Mechanik; die oberen Schranken
folgen aus Abschätzungen dieses "Drucks".
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| Date: | Tue, 04.06.2013 |
| Time: | 14:15 |
| Location: | Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | J. Yngvason |
| Searching for extra dimensions at the LHC |
| Speaker: | Lisa Edelhäuser (RWTH aachen university) |
| Abstract: | This talk gives an overview on models with universal extra dimen- sions. In these models, one has one or more compactified extra dimensions in which all particles can propagate. These models predict that each Standard Model particle is accompanied by a tower of Kaluza-Klein (KK) resonances which appear at a mass scale that is related to the radius R. Due to orbifolding of the ext- ra dimension, a so-called KK-parity remains, predicting a stable particle which can serve as a dark matter candidate. This sym- metry allows only pair production of the first KK modes, similar
to supersymmetry with R-parity.
However, canonical searches for the production and cascade decays of the first KK modes through missing transverse mo- mentum signatures suffer in general from low detection effici- encies because of the rather compressed KK particle mass spectrum. The talk will contain latest results on di |
| Date: | Wed, 05.06.2013 |
| Time: | 17:00 |
| Duration: | 60 min |
| Location: | Institute for High Energy Physics (HEPHY) 1050 Wien, Nikolsdorfer Gasse 18 Library, 1st Floor |
| Contact: | Ken Suzuki |
| Strong coupling from tau lepton decays |
| Speaker: | Matthias Jamin (Univ. Autonoma Barcelona) |
| Date: | Thu, 06.06.2013 |
| Time: | 14:15 |
| Location: | Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | ruth.bogoevski@univie.ac.at |
| Wealth and Social Behavior: Lessons from an Online World |
| Speaker: | Benedikt Fuchs (Med.Univ.Wien) |
| Abstract: | im Rahmen der gemeinsam veranstalteten Seminare "Komplexe Stochastische
Systeme" (Univ.Wien) und "Analyse Komplexer Systeme" (Med.Univ.Wien) |
| Date: | Fri, 07.06.2013 |
| Time: | 14:15 |
| Duration: | 90 min |
| Location: | Medizinische Universität Wien, Informatikbibliothek Bauteil 88, E 03, Spitalgasse 23 |
| Contact: | H. Hüffel, Stefan Thurner |
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