Abstract
After having announced the statistically significant observation () of the new exotic atom, the DIRAC experiment at the CERN proton synchrotron presents the measurement of the corresponding atom lifetime, based on the full data sample: . By means of a precise relation () between atom lifetime and scattering length, the following value for the -wave isospin-odd scattering length has been derived: .
10 More- Received 11 July 2017
DOI:https://doi.org/10.1103/PhysRevD.96.052002
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Published by the American Physical Society