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arXiv · 0809.4963

Measurement of the pionium lifetime

M. Zhabitsky
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Abstract

We report the progress in the measurement of the pionium lifetime by the DIRAC Collaboration at CERN (PS212). Based on data collected in 2001-2003 on Ni targets we have achieved the precision of 11% in the measurement of the pionium lifetime, which corresponds to the measurement of S-wave pion-pion scattering lengths difference |a0-a2| with the accuracy of 6%.

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M. Zhabitsky. 2008-09-29. Measurement of the pionium lifetime. https://arxiv.org/abs/0809.4963

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