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Determination of ππ scattering lengths from measurement of π+π− atom lifetime
- Source :
- Physics Letters B. 704:24-29
- Publication Year :
- 2011
- Publisher :
- Elsevier BV, 2011.
-
Abstract
- The DIRAC experiment at CERN has achieved a sizeable production of + atoms and has significantly improved the precision on its lifetime determination. From a sample of 21227 atomic pairs, a 4% measurement of the S-wave scattering length di erence ja0 a2j = 0:2533 +0:0080 0:0078 stat
Details
- ISSN :
- 03702693
- Volume :
- 704
- Database :
- OpenAIRE
- Journal :
- Physics Letters B
- Accession number :
- edsair.doi...........924201713bf03753f7d657b22ffd0266
- Full Text :
- https://doi.org/10.1016/j.physletb.2011.08.074