Measurement of Bose-Einstein correlations of charged and neutral kaons in deep inelastic ep scattering with ZEUS at HERA

Bose-Einstein correlations of charged and neutral kaons were measured 
in e±p deep inelastic scattering with ZEUS at HERA using an integrated
luminosity of 121 pb-1. The two-particle correlation function was studied 
as a function of the four-momentum difference of the kaon-pairs, 
Q12=sqrt(-(p1-p2)^2),  assuming a Gaussian shape of the particle source. 
The values of the radius of the production volume, r, and the correlation 
strength, lambda, were obtained for both neutral and charged kaons. The radii
for charged and neutral kaons are similar and are consistent with those 
obtained at LEP.