Abstract
The antiproton-proton annihilation cross-section has been mesasured for antiproton beam momenta between 180 and 600 MeV/c. The annihilation cross-section is found to be larger than the geometrical limit of thes-wave inelastic cross-section in this momentum range, indicating a significantp-wave contribution even at low momenta.
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We wish to thank the LEAR machine group and the beam-line group for their efforts to produce a low-energy antiproton beam of high quality. The design and manufacturing of the liquid-hydrogen target was performed skilfully by the CERN cryotarget group. The assistance of our technicians Z. Kenesei and J. Zimmer is gratefully acknowledged. We thank C.B. Dover, M. Lacombe, F. Myhrer and P.H. Timmers for providing us with the results of their potential model calculations. The present work was supported financially by the Bundesministerium fiir Forschung und Technologic of the Federal Republic of Germany.
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Brückner, W., Cujec, B., Döbbeling, H. et al. Measurements of the antiproton-proton annihilation cross-section in the beam momentum range between 180 and 600 MeV/c. Z. Physik A - Atomic Nuclei 335, 217–229 (1990). https://doi.org/10.1007/BF01294477
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DOI: https://doi.org/10.1007/BF01294477