Calendar of Physics Talks Vienna

Charm and Bottom mass determinations from relativistic QCD sum rules at four loops
Speaker:Bahman Dehnadi (University of Vienna) (The Vienna Theory Lunch Seminar)
Abstract:In this talk I will present our recent results on charm and bottom mass determinations based on perturbative QCD with a thorough analysis of theoretical uncertainties.
Date: Tue, 14.10.2014
Time: 12:15
Duration: 60 min
Location:Seminar room 136, 10th floor, yellow section, Institute for Theoretical Physics, TU Wien

Symplektische Geometrie und Quantisierung
Speaker:Harold Steinacker (Univ. Wien)
Abstract:Einführung und Wiederholung der Grundlagen der symplektischen Geometrie und Quantisierung, zur Vorbereitung der weiteren Seminarvorträge
Date: Tue, 14.10.2014
Time: 14:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:H. Steinacker

Non Evaporable Getter Pumps in UHV-XHV Systems
Speaker:Dr. Andrea Cadoppi (SAES, Milan/Italy)
Abstract:Due to the complexity of UHV systems in a variety of applications (i.e. Surface Science, Thin Film Deposition, Portable Systems, Cold Atomic Trap, Electron Microscopes, Particle Accelerators), the space available for mounting UHV pumps is getting smaller. A radically new approach is here presented, which can mitigate this issue. In particular, Non Evaporable Getter (NEG) and ion pumping technologies are properly combined and integrated in one single compact pumping device, called NEXTorr®. In the NEXTorr® pump, the getter cartridge acts as the main UHV pumping element, leaving to a small sputter ion pump the ancillary task of removing noble gases and methane, not pumped by the NEG. This design allows achieving large pumping speed in a very small package. The NEXTorr® pump will also address other specific issues in UHV systems like the reduction of the magnetic interferences and the vibra
Date: Tue, 14.10.2014
Time: 16:00
Location:Technische Universität Wien, Institut für Angewandte Physik, Seminarraum 134A, Turm B (gelbe Leitfarbe), 5. OG, 1040 Wien, Wiedner Hauptstraße 8-10
Contact:Ao.Univ.Prof. Dr. Wolfgang Werner

Top-Quarks at 100 TeV
Speaker:Susanne Westhoff (University of Pittsburgh)
Abstract:The international effort to build a proton-proton collider at very high energies is driven by two perspectives. We seek to search energy scales beyond the LHC reach for new physics, and to explore the electroweak standard model in its unbroken phase. In particular, the heaviest articles of the standard model, top-quarks, appear ultimately massless in processes at very high energies. I will focus on top-quark initiated processes at a 100 TeV collider and discuss ways to consistently treat the collinear enhancement from top-quarks emitted along the beam line.
Date: Tue, 14.10.2014
Time: 16:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:A. Hoang, H. Neufeld

Adsorption, absorption and reaction of hydrogen at Pd-based alloy surfaces
Speaker:Prof. Katsuyuki Fukutani (Institute of Industrial Science, University of Tokyo/Japan)
Abstract:Hydrogen is a clean energy source, and hydrogen generation, storage and utilization are of crucial importance in our future society. Since solid surfaces play important roles in these processes, our group has focused on the studies of hydrogen interaction with metal and metal oxide surfaces. For this purpose, we have developed nuclear reaction analysis (NRA) that allows for high-resolution depth profiling of hydrogen and resonance-enhanced multiphoton ionization (REMPI). Pd is a typical material that absorbs hydrogen in its bulk, and hydrogen absorbed in Pd clusters was shown to play an essential role in olefin hydrogenation reactions. On the other hand, alloying with Au has been claimed to enhance hydrogen absorption in Pd. By combining NRA and TPD, we have studied absorption of hydrogen in Pd(110) and Pd70Au30(110), and shown that hydrogen can be efficiently absorbed in Pd70Au30(1
Date: Wed, 15.10.2014
Time: 16:00
Location:Technische Universität Wien, Institut für Angewandte Physik, Seminarraum 134 (Raumnummer DB05E11), Turm B (gelbe Leitfarbe), 5. OG, 1040 Wien, Wiedner Hauptstraße 8-10
Contact:Univ.Prof. Dr. Ulrike Diebold

Geometric compactication and conformal geometry
Speaker:Rod Gover (Auckland)
Abstract:Conformal compactification is a well established tool in GR and many related fields. The model for this construction is often taken to be the Poincare ball model of hyperbolic space. There is a refinement of this idea which reveals the Lie groups and Lie group embeddings behind conformal compactification. These structures at once generalise to the curved setting through the conformal Cartan-tractor calculus (i.e. the natural conformally invariant connection and related objects. This provides a conceptual and calculationally effective way to treat Many problems linked to conformal compactification.
Date: Thu, 16.10.2014
Time: 14:00
Duration: 60 min
Location:Arbeitsgruppe Gravitation, Währinger Strasse 17, Seminarraum A, 2. Stock, 1090 Wien
Contact:P.T. Chrusciel

Galilean Conformal Electrodynamics
Speaker:Rudranil Basu (IISER Pune)
Abstract:see http://arxiv.org/abs/arXiv:1408.0810
Date: Thu, 16.10.2014
Time: 16:00
Duration: 60 min
Location:SEM 136, TU Wien, Freihaus, 10th floor (Wiedner Hauptstr. 8-10, A-1040 Vienna)
Contact:Daniel Grumiller