Critical stability

Session

Mathematical physics; exotic atoms

15 Oct 2008, 09:00

Ettore Majorama Centre for Scientific Culture

9. Can one bind three electrons with a single proton

Mr Pierre Duclos (Centre de Physique Théorique, Marseille)

15/10/2008, 09:00

Talks at Critical Stability V (Erice, October 2008)

Normal

62. Relativistic Hydrogen in Strong Magnetic Fields

Prof. Raymond Brummelhuis (Birbeck, U. London, UK)

15/10/2008, 09:35

Talks at Critical Stability V (Erice, October 2008)

Normal

We study the bound states of relativistic hydrogen-like atoms cou- pled to strong homogeneous magnetic fields, under the assumption of an infinitely heavy nucleus. Working in the adiabatic approximation in which the electron is confined to the lowest Landau level, we show that the discrete spectrum is always non-empty and that, as the field strength increases, its eigenvalues...

45. A Mathematical Theory for Vibrational Levels Associated with Hydrogen Bonds

Prof. Alain Joye (Institut Fourier, Universite de Grenoble)

15/10/2008, 10:10

Talks at Critical Stability V (Erice, October 2008)

Normal

We propose an alternative to the usual time--independent Born--Oppenheimer approximation that is specifically designed to describe molecules with Hydrogen bonds. In our approach, the masses of the Hydrogen nuclei are scaled differently from those of the heavier nuclei, and we employ a specialized form for the electron energy level surface. Consequently, anharmonic effects play a role in...

41. Binding in some few-body systems containing antimatter

Prof. Edward A. G. Armour (School of Mathematical Sciences, University of Nottingham, Nottingham NG7 2RD, UK)

15/10/2008, 11:00

Talks at Critical Stability V (Erice, October 2008)

Normal

The field generated by a fixed proton and antiproton a distance R apart is a particular example of a dipole field. The existence or otherwise of bound states of an electron (or a positron) in such a field was originally studied by Fermi and Teller and Wightman [1-3] in the late forties. They showed that if R > 0.639 a_0, a bound state of the system existed but if R < 0.639 a_0, no bound states...

31. Experimental low energy antiproton physics

Prof. Eberhard Widmann (Stefan Meyer Institute for Subatomic Physics, Vienna, Austria)

15/10/2008, 11:35

Talks at Critical Stability V (Erice, October 2008)

Normal

Experiments with low-energy antiprotons are currently performed at the antiproton Decelerator (AD) of CERN. The main focus of the three experimental collaboration is the study of fundamental symmetries, especially CPT invariance, using antiprotonic atoms and antihydrogen. The ASACUSA collaboration focusses on precision spectroscopy of antiprotonic helium, an exotic three-body system consisting...