Kaon interference in the hadronic decays of the Z0
Collaboration
16 pages
Published in:
- Phys.Lett.B 379 (1996) 330-340
Report number:
- CERN-PPE-96-054,
- CERN-PPE-96-54
Experiments:
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Abstract: (Elsevier)
The first measurement of like-sign charged kaon correlations in hadronic decays of the Z 0 is presented, based on data collected by the DELPHI detector. The charged kaons are identified by means of ring imaging Cherenkov detectors. A significant enhancement at small values of the four-momentum difference is observed in the ratio of like-sign to unlike-sign KK pairs and in the ratio of like-sign pairs to a simulated reference sample. An update of the measurement of K s 0 K s 0 interference is also presented. An enhancement is found in the production of pairs of K s 0 of similar momenta, as compared with a simulated reference sample. The measured Bose-Einstein correlation parameters λ and r are similar for charged and neutral kaon pairs. The value of the Bose-Einstein correlation strength λ is consistent with unity.- electron positron: colliding beams
- colliding beams: electron positron
- electron positron: annihilation
- annihilation: electron positron
- Z0: electroproduction
- electroproduction: Z0
- Z0: hadronic decay
- hadronic decay: Z0
- correlation: (2K+)
- correlation: (2K-)
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