Progress in precision laser spectroscopy of p-He

Research output: Contribution to journalArticle

Abstract

The mass of the antiproton (the antiproton-electron mass ratio m p/m e) can be deduced from laser spectroscopy measurements of antiprotonic helium, compared to 3-body QED calculations. The most precise spectroscopy measurements have so far been limited by Doppler-broadening at finite temperatures. The status of our ongoing precision measurements is presented, within the framework of the Asacusa experiment at CERN.

Original languageEnglish
Pages (from-to)159-165
Number of pages7
JournalHyperfine Interactions
Volume212
Issue number1-3
DOIs
Publication statusPublished - Dec 2012

Fingerprint

Laser spectroscopy
laser spectroscopy
antiprotons
Helium
electron mass
Doppler effect
mass ratios
helium
Spectroscopy
Electrons
spectroscopy
Experiments
Temperature
temperature

Keywords

  • Antiproton-electron mass ratio
  • Antiprotonic helium

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Progress in precision laser spectroscopy of p-He. / Barna, D.

In: Hyperfine Interactions, Vol. 212, No. 1-3, 12.2012, p. 159-165.

Research output: Contribution to journalArticle

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