CPT

Calendar of Physics Talks Vienna

Positive parity heavy mesons in heavy meson chiral perturbation theory
Speaker:Svjetlana Fajfer (Univ. Ljubljana) (Fakultät für Physik)
Abstract:im Rahmen des Teilchenphysikseminars
Date: Tue, 01.04.2008
Time: 16:15
Duration: 60 min
Location:Großer Seminarraum, Boltzmanngasse 5, 5. Stock
Contact:H. Neufeld

Nonlinear stability of the Nordström-Vlasov system
Speaker:Prof. Simone Calogero (Univ. of Braga, Portugal) (Fakultät für Physik)
Abstract:im Rahmen des Literaturseminars
Date: Tue, 01.04.2008
Time: 16:15
Duration: 60 min
Location:Seminarraum B, 1. Stock, Währinger Straße 17
Contact:R. Beig

Precision Mass Measurement: w_cyclotron is not qB/m, does E=mc^2 ?
Speaker:Prof. Dave Pritchard (MIT)
Abstract:We have developed an /ion balance/ that has improved atomic and molecular mass measurement accuracy to ~ 10^-11 . It compares the cyclotron frequency of /two individual/ molecular or atomic ions trapped in a uniform magnetic field to find the mass ratio. Besides improving the mass of fundamental particles, we have discovered a correction to the cyclotron resonance formula, enabled a new route to determining the fine structure constant using simple physics, made the best measurement of the dipole moment of any charged molecule, recalibrated the x-ray wavelength standard, enabled a possible route to replace the artefact kilogram with an atomic mass standard, and made a precise test of E=mc^2 . We can also weigh chemical bonds.
Date: Tue, 01.04.2008
Time: 16:15
Location:Hörsaal des Atominstitutes der Österreichischen Universitäten
Contact:Prof. Dr. Joerg Schmiedmayer