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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 |
| Contact: | moritz.preisser@gmail.com |
| 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
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| 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 |
| 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.
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| 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 |
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