2019 CAP Congress / Congrès de l'ACP 2019

Session

M1-1 Test of Fundamental Physics with Atoms (DAMOPC) | Tests de physique fondamentale avec des atomes (DPAMPC)

M1-1

3 Jun 2019, 10:45

BLU 10011 (Simon Fraser University)

Conveners

M1-1 Test of Fundamental Physics with Atoms (DAMOPC) | Tests de physique fondamentale avec des atomes (DPAMPC)

• Takamasa Momose (The University of British Columbia)

2703. A measurement of the Lamb shift in atomic hydrogen and its implication for the proton size puzzle

Prof. Eric A. Hessels (York University)

03/06/2019, 10:45

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Invited Speaker / Conférencier(ère) invité(e)

We have measured the $n$=2 Lamb shift in atomic hydrogen. The measurement uses a direct microwave transition between the 2S and 2P states, and employs the new frequency-offset separated-oscillatory-fields (FOSOF) technique. The FOSOF technique is a variation of the Ramsey separated-oscillatory field technique in which the two separated fields have their frequencies slightly offset from each...

2506. Tests of fundamental physics with trapped antihydrogen

Dr Tim Tim Friesen (University of Calgary)

03/06/2019, 11:15

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Invited Speaker / Conférencier(ère) invité(e)

Antihydrogen, as the simplest purely antimatter atomic system, is a natural candidate for testing fundamental symmetries between matter and antimatter. For example, CPT symmetry predicts that the spectra of hydrogen and antihydrogen should be identical. By making precise measurements of antihydrogen’s transition frequencies, and making comparisons to high precision measurements in hydrogen, we...

2580. A new electron gun for the TITAN-EBIT

Mr Kilian Dietrich (TRIUMF)

03/06/2019, 11:45

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

One method to improve our understanding of nuclear physics, for example the nuclear structures within atoms, is performing high-precision mass measurements of ions. Penning traps are widely used for mass spectroscopy with the lowest uncertainty and they can reach a precision of 𝛿m/m~1*10$^{-9}$ with radioactive ion beams. This precision can be further improved by using highly charged ions...

2697. Advances in Microwave Spectroscopy of Antihydrogen

Ms Justine Munich (Simon Fraser University, Canada)

03/06/2019, 12:00

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)

The hydrogen ground state hyperfine splitting is known to seven parts in 10¹³ [1]. The Antihydrogen Laser Physics Apparatus (ALPHA) Collaboration seeks to perform precision tests of symmetries between matter and antimatter by measuring properties of antihydrogen and comparing them to its matter counterpart, hydrogen. This pursuit leads us to probe the ground state hyperfine...