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Evidence for pi K- atoms with DIRAC
- 1.0342362 - FZÚ 2011 RIV NL eng J - Journal Article
Lednický, Richard - Smolík, Jan
Evidence for pi K- atoms with DIRAC.
Physics Letters. B. Roč. 674, č. 1 (2009), s. 11-16. ISSN 0370-2693. E-ISSN 1873-2445
Institutional research plan: CEZ:AV0Z10100502
Keywords : DIRAC experiment * exotic atoms * scattering length * pi K-scattering * chiral perturbation
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 5.083, year: 2009
We present evidence for the first observation of electromagnetically bound pi K pairs (piK-atoms) with the DIRAC experiment at the CERN-PS. The pi K atoms are produced by the 24 GeV/c proton beam in thin Pt target. The bound states are observed as enhancement at low relative momentum region. The measured effect corresponds to 173+-54 pi K atoms.
Permanent Link: http://hdl.handle.net/11104/0185114
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