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Measurement of the Antiprotonic Lyman- and Balmer X-Rays of p̄H And p̄D Atoms at Very Low Target Pressures

  • R. Bacher
  • P. Blüm
  • J. Egger
  • K. Elsener
  • D. Gotta
  • K. Heitlinger
  • W. Kunold
  • D. Rohmann
  • M. Schneider
  • L. M. Simons
Part of the Ettore Majorana International Science Series book series (EMISS, volume 31)

Abstract

The experiment described here (PS 175) aims at the measurement of the 2p-ls transition in antiprotonic hydrogen under optimal conditions1. Theoretical calculations based on potential models2,3,4,5,6,7 predict hadronic shifts and widths of the ground state of about 1 keV compared to a 2p-ls electromagnetic transition energy of 9.35 keV. Because the energy difference between 2p and 3p levels is 1.735 keV, the 2p-ls transition is separated from other np-ls transitions by more than the width of the ground state. The 2p-ls transition is the only transition satisfying this criterion.

Keywords

Cascade Process Beam Momentum Target Chamber Cascade Code Stop Region 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • R. Bacher
    • 1
    • 2
  • P. Blüm
    • 1
    • 2
  • J. Egger
    • 3
  • K. Elsener
    • 4
  • D. Gotta
    • 1
    • 2
  • K. Heitlinger
    • 1
    • 2
  • W. Kunold
    • 1
    • 2
  • D. Rohmann
    • 1
    • 2
  • M. Schneider
    • 1
    • 2
  • L. M. Simons
    • 3
  1. 1.Institut für KernphysikKernforschungszentrum Karlsruhe GmbHKarlsruhe 1Federal Republic of Germany
  2. 2.Institut für Experimentelle Kernphysik der UniversitätKarlsruhe 1Federal Republic of Germany
  3. 3.SINVilligenSwitzerland
  4. 4.CERNGenevaSwitzerland

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