Announcements

Upcoming events

First Newsletter 2017
  • The current newsletter is available here.
  • 9th Bethe Center Workshop
    "Computational Sciences and Reality"
    , October 2nd to 6th, 2017, Physikzentrum Bad Honnef
    The organizers are Markus Gabriel (Bonn), Tom Luu (Jülich), Ulf-G. Meißner (Bonn) and Carsten Urbach (Bonn).
  • Bethe-Colloquium by Marc Knecht (Marseille, CPT), October 26th, 2017
  • Bethe-Colloquium by Michael Kramer (MPI for Radio Astronomy, Bonn), November 9th, 2017
  • Bethe-Colloquium by Luis Ibañez (IFT, UAM Madrid), December 7th, 2017
  • Bethe-Colloquium by Catharina Stroppel (Mathematical Institute, University of Bonn), January 18th, 2018
  • Bethe Forum "Amplitudes in Gauge and String Theory", February 19th - 23rd, 2018
    Convenors: Jan Plefka (HU Berlin), Hans Jockers (Bonn) and Albrecht Klemm (Bonn).

Further information will be given as soon as it is available.

9th Bethe Center Workshop
"Computational Sciences and Reality"

02.10.2017 – 06.10.2017
Poster 9th Bethe Center Workshop
We are happy to announce the 9th Bethe Center Workshop "Computational Sciences and Reality" on October 2 - 6, 2017 in Physikzentrum Bad Honnef, Hauptstr. 5, 53604 Bad Honnef.

The organizers are Markus Gabriel (Bonn), Tom Luu (Jülich), Ulf-G. Meißner (Bonn/Jülich) and Carsten Urbach (Bonn).

More information and the application form are available here.

Bethe Colloquium by Marc Knecht

October 2017
Marc Knecht

October's Bethe Colloquium will take place on Thursday, October 26th (4:15 pm) in Hörsaal I:

  • Marc Knecht (Marseille, CPT)
  • The anomalous magnetic moment of the muon: a precision probe of the standard model
  • Hörsaal I, Physikalisches Institut

Abstract: Despite dedicated searches at colliders like the LHC, hints for physics beyond the standard model remain at best indirect. They come either from the cosmic frontier, where, for instance, the nature of dark matter stil eludes our understanding, or from the flavour sector. In particular, recent measurements at LHCb of B meson decays into neutral-current channels with a pair of charged leptons have attracted attention by showing some deviation with respect to the predictions of the standard model. Although definite statements can hardly be made at this stage, they point towards some kind of violation of lepton-flavour universality, the channels with an electron-positron pair looking more standard-model-like than the channels with a pair of charged muons. If confirmed, these observations would begin to compose a coherent picture when combined with another persistent discrepancy: for about fifteen years, there is a deviation, at the level of 3.5 standard deviations, between the experimental measurement, at a relative precision of 0.54 ppm, of the anomalous magnetic moment of the muon, and its evaluation within the standard model. The purpose of this talk is to review the theoretical aspects which build up the standard-model prediction for the anomalous magnetic moment of the muon, and to present the prospects to improve upon it, in view of upcoming experiments, at FNAL and at J-PARC, which aim at measuring it at a relative precision of 0.14 ppm in the near future.