Measurement of the nuclear multiplicity ratio for $K^0_s$ hadronization at CLAS

Details Measurement of the nuclear multiplicity ratio for $K^0_s$ hadronization at CLAS Measurement of the nuclear multiplicity ratio for $K^0_s$ hadronization at CLAS

2011-11-10

arxiv.org/abs/1111.2573v1

Physics

Nuclear Physics

Nuclear Experiment

Submitted to Phys. Lett. B

Scientific paper

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 $K^0_s$ are reduced in the nuclear medium at high $z$ and low $p_{T}^2$, with a trend for the $K^0_s$ transverse momentum to be broadened in the nucleus for large $p_{T}^2$.

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