Bose-Einstein Correlations of Charged and Neutral Kaons in Deep Inelastic Scattering at HERA

TL;DR

This study measures Bose-Einstein correlations of charged and neutral kaons in deep inelastic scattering at HERA, providing insights into the particle production volume and correlation strength, consistent with previous LEP results.

Contribution

It presents the first measurement of Bose-Einstein correlations for both charged and neutral kaons in deep inelastic scattering at HERA, with comparable radii to LEP findings.

Findings

Charged and neutral kaons have similar production radii.

The measured radii are consistent with LEP results.

Correlation strength values were obtained for both kaon types.

Abstract

Bose-Einstein correlations of charged and neutral kaons have been measured in e+-p deep inelastic scattering with an integrated luminosity of 121 pb-1 using the ZEUS detector at HERA. The two-particle correlation function was studied as a function of the four-momentum difference of the kaon pairs, Q_12=sqrt{-(p_1-p_2)^2}, assuming a Gaussian shape for the particle source. The values of the radius of the production volume, r, and of 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.