Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Determination of the Antiproton-to-Electron Mass Ratio by Two-Photon Laser Spectroscopy of Antiprotonic Helium Atoms

Not Accessible

Your library or personal account may give you access

Abstract

Some ultraviolet transition frequencies in antiprotonic helium atoms were measured by sub-Doppler two-photon laser spectroscopy to a precision of 2.3-5 parts in 109. By comparing the results with three-body QED calculations, the antiproton mass in units of the electron mass was determined as 1836.1526736(23). This agrees with the proton-to-electron mass ratio. This constitutes a consistency test of the CPT symmetry of particle physics.

© 2013 Optical Society of America

PDF Article  |   Presentation Video
More Like This
Laser spectroscopy of antiprotonic helium atoms

Norio Morita
FX1 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 1995

1000-Fold improvement in the measured antiproton mass

G. Gabrielse
WS1 OSA Annual Meeting (FIO) 1990

Kinetics of Metastable States of Antiprotonic Helium Controlled by Sequences of Short Laser Pulses

L.A. Melnikov, V.L. Derbov, M.V. Ryabinina, and I.M. Umanskii
QWC11 European Quantum Electronics Conference (EQEC) 1998

Presentation Video

Presentation video access is available to:

  1. Optica Publishing Group subscribers
  2. Technical meeting attendees
  3. Optica members who wish to use one of their free downloads. Please download the article first. After downloading, please refresh this page.

Contact your librarian or system administrator
or
Log in to access Optica Member Subscription or free downloads


More Like This
Laser spectroscopy of antiprotonic helium atoms

Norio Morita
FX1 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 1995

1000-Fold improvement in the measured antiproton mass

G. Gabrielse
WS1 OSA Annual Meeting (FIO) 1990

Kinetics of Metastable States of Antiprotonic Helium Controlled by Sequences of Short Laser Pulses

L.A. Melnikov, V.L. Derbov, M.V. Ryabinina, and I.M. Umanskii
QWC11 European Quantum Electronics Conference (EQEC) 1998

Laser Spectroscopy of Ultracold Metastable Helium Atoms

L.J. Byron, O. Turazza, R.G. Dall, A.G. Truscott, and K.G.H. Baldwin
FThQ7 Frontiers in Optics (FiO) 2006

Laser spectroscopy of atoms and molecules in superfluid helium

Qin Hui, John L. Persson, Masato Nakamura, and Michio Takami
FR2 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 1995

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved