Journal article
Bose-Einstein correlations in K±K± pairs from Z0 decays into two hadronic jets
G Abbiendi, K Ackerstaff, PF Akesson, G Alexander, J Allison, KJ Anderson, S Arcelli, S Asai, SF Ashby, D Axen, G Azuelos, I Bailey, AH Ball, E Barberio, RJ Barlow, JR Batley, S Baumann, T Behnke, KW Bell, G Bella Show all
EUROPEAN PHYSICAL JOURNAL C | SPRINGER | Published : 2001
Abstract
Abstract. Bose-Einstein correlations in pairs of charged kaons produced in a sample of 3.9 million hadronic $$\mathrm{Z}^0$$ decays have been measured with the OPAL experiment at LEP. Charged kaons were identified in the central tracking detector using their specific energy loss in the drift chamber gas. The correlation function was studied in two-jet events using a double ratio, formed by the number of like-sign pairs normalised by a reference sample in the data, divided by the same ratio in a Monte Carlo simulation. The enhancement at small values of the four-momentum difference of the pair was parametrised using a Gaussian function. The parameters of the Bose-Einstein corr..
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