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Measurement of pionium lifetime with the Dirac spectrometer

  • QNP 2006
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Abstract.

Pionium ( π + π - bound state) lifetime is measured with improved precision with respect to earlier work, and the ππ s-wave scattering length difference between I = 0 and I = 2 amplitudes | a 0 - a 2| is determined to 5% precision.

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Authors and Affiliations

  1. IGFAE, Universidade de Santiago de Compostela, 15706, Santiago de Compostela, Spain

    B. Adeva, A. Romero Vidal & O. Vázquez Doce

Authors
  1. B. Adeva
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  2. A. Romero Vidal
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  3. O. Vázquez Doce
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Correspondence to B. Adeva.

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Adeva, B., Romero Vidal, A. & Vázquez Doce, O. Measurement of pionium lifetime with the Dirac spectrometer. Eur. Phys. J. A 31, 522–526 (2007). https://doi.org/10.1140/epja/i2006-10230-6

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  • DOI: https://doi.org/10.1140/epja/i2006-10230-6

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