Measurement of the imaginary part of the I=1 N¯N S-wave scattering length

Mutchler, G. S. and Clement, J. and Kruk, J. and Moss, R. and Hungerford, Ed V. and Kishimoto, T. and Mayes, B. and Pinsky, L. and Tang, L. and Xue, Y. and Bassalleck, B. and Armstrong, T. and Hartman, K. and Hicks, A. and Lewis, R. and Lochstet, W. and Smith, G. A. and Lowenstein, D. and Poth, H. and von Witsch, W. and Furić, Miroslav (1988) Measurement of the imaginary part of the I=1 N¯N S-wave scattering length. Physical Review D, 38 (3). pp. 742-753. ISSN 1550-7998

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The survival time spectrum of slow antineutrons produced in a liquid-hydrogen target has been measured. From these data the imaginary part of the I=1 spin-averaged S-wave antineutron proton scattering length has been deduced to be Ima1=-0.83±0.07 fm. The result lies within the range of values calculated from current potential models. In addition, by combining a1 with the antiproton-proton scattering length deduced from antiprotonic atoms, the imaginary part of the I=0 spin-averaged N¯N scattering length was calculated to be Ima0=-1.07±0.16 fm.

Item Type: Article
Date: 1988
Subjects: NATURAL SCIENCES > Physics
Additional Information: Copyright (1988) by the American Physical Society.
Divisions: Faculty of Science > Department of Physics
Publisher: American Physical Society
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 10 May 2014 11:02
Last Modified: 10 May 2014 11:50

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