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The DIRAC experiment at CERN

Ch. P. Schuetz
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Abstract

The DIRAC experiment at CERN aims to measure the lifetime of the pionium atom ($A_{2π}$), a $π^+π^-$ bound state with an accuracy of 10%. The experimental setup consists of a high precision magnetic double arm spectrometer, located at the high intensity proton beam of the CERN Proton Synchrotron. This measurement will provide - in a model independent way - the S-wave pion scattering length difference $|a_0 - a_2|$ with 5% precision.

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Ch. P. Schuetz. 2003-05-12. The DIRAC experiment at CERN. https://arxiv.org/abs/hep-ph/0305121

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