Determination of the S wave scattering length in pionic deuterium with a high resolution crystal spectrometer

1995
4 pages
Published in:
  • Phys.Rev.Lett. 74 (1995) 4157-4160
Experiments:

Citations per year

199520022009201620220246810
Abstract: (APS)
The pionic deuterium 3P−1S x-ray transition was measured with a quartz crystal spectrometer in combination with a cyclotron trap and charge coupled device detectors. The strong interaction shift and total decay width of the 1S level are ε1Sshift=2.48±0.10 eV (repulsive), γ1Swidth=1.02±0.21 eV, where the statistical and systematic errors were added linearly. They yield the total pionic deuterium S-wave scattering length: aπ−d=−0.0264(±0.0011)+i0.0054(±0.0011)mπ−1.
  • pi- deuteron: interaction
  • interaction: pi- deuteron
  • atom: mesic atom
  • deuterium: mesic atom
  • partial wave: scattering length
  • scattering length: partial wave
  • deuteron: width
  • spectrometer: crystal
  • experimental results
  • 0.085 GeV/c