Measurement of the nuclear multiplicity ratio for K-s(0) hadronization at CLAS

Abstract The influence of cold nuclear matter on lepto-production of hadrons in semi-inclusive deep inelastic scattering is measured using the CLAS detector in Hall B at Jefferson Lab and a 5.014 GeV electron beam. We report the K s 0 multiplicity ratios for targets of C, Fe, and Pb relative to deuterium as a function of the fractional virtual photon energy z transferred to the K s 0 and the transverse momentum squared p T 2 of the K s 0 . We find that the multiplicity ratios for K s 0 are reduced in the nuclear medium at high z and low p T 2 , with a trend for the K s 0 transverse momentum to be broadened in the nucleus for large p T 2 .