8 documents found, page 1 of 1
Measuring the α-particle charge radius with muonic helium-4 ions
Krauth, Julian J.; Schuhmann, Karsten; Ahmed, Marwan Abdou; Amaro, Fernando D.; Amaro, Pedro; Biraben, François; Chen, Tzu-Ling; Covita, Daniel S.The energy levels of hydrogen-like atomic systems can be calculated with great precision. Starting from their quantum mechanical solution, they have been refined over the years to include the electron spin, the relativistic and quantum field effects, and tiny energy shifts related to the complex structure of the nucleus. These energy shifts caused by the nuclear structure are vastly magnified in hydrogen-like s...
Laser spectroscopy of muonic deuterium
Pohl, Randolf; Nez, François; Fernandes, Luís M. P.; Amaro, Fernando D.; Biraben, François; Cardoso, João M. R.; Covita, Daniel S.; Dax, Andreas
Quantum interference shifts in laser spectroscopy with elliptical polarization
Pedro Amaro; Filippo Fratini; Laleh Safari; Aldo Antognini; Indelicato, Paul; Randolf Pohl; José Paulo Santos
Proton structure from the measurement of 2S-2P transition frequencies of muonic...
Antognini, Aldo; Nez, François; Schuhmann, Karsten; Amaro, Fernando D.; Biraben, François; Cardoso, João M. R.; Covita, Daniel S.; Dax, Andreas
Lifetime and population of the 2S state in muonic protium and deuterium
Diepold, Marc; Amaro, Fernando D.; Antognini, Aldo; Biraben, François; Cardoso, João M. R.; Covita, Daniel S.; Dax, Andreas; Satish Dhawan
Laser spectroscopy of muonic hydrogen
Pohl, Randolf; Antognini, Aldo; Amaro, Fernando D.; Biraben, François; Cardoso, João M. R.; Covita, Daniel S.; Dax, Andreas; Dhawan, Satish
Production and decay of Sulphur excited species in a ECRIS plasma
Martins, Maria Conceição; Marques, José Pires; Costa, Ana Maria; Santos, José Paulo; Parente, Fernando; Schlesser, Sophie; Le Bigot, Eric-OlivierThe most important processes for the creation of S12+ to S14+ ions excited states from the ground configurations of S9+ to S14+ ions in an electron cyclotron resonance ion source, leading to the emission of K X-ray lines, are studied. Theoretical values for inner-shell excitation and ionization cross sections, including double KL and triple KLL ionization, transition probabilities and energies for the deexcitat...
QED and relativistic corrections in superheavy elements
Indelicato, Paul; Santos, José Paulo; Boucard, Stephan; Desclaux, Jean-PaulIn this paper we review the different relativistic and QED contributions to energies, ionic radii, transition probabilities and Landé g-factors in super-heavy elements, with the help of the MultiConfiguration Dirac-Fock method (MCDF). The effects of taking into account the Breit interaction to all orders by including it in the self-consistent field process are demonstrated. State of the art radiative correction...