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arXiv · hep-ex/0302039

Production Asymmetry of $D_s$ from 600 GeV/c $Σ^-$ and $π^-$ beam

M. Kaya
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Abstract

The production of $D_s^-$ relative to $D_s^+$ as a function of $x_F $ with 600 GeV/c $Σ^-$ beam is measured in the interval $0.15 < x_F < 0.7$ by the SELEX (E781) experiment at Fermilab. The integrated charge asymmetries with 600 GeV/c $Σ^-$ beam ($0.53\pm0.06$) and $π^-$ beam ($0.06\pm0.11$) are also compared. The results show the $Σ^-$ beam fragments play a role in the production of $D_s^-$, as suggested by the leading quark model.

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M. Kaya. 2003-02-25. Production Asymmetry of $D_s$ from 600 GeV/c $Σ^-$ and $π^-$ beam. https://doi.org/10.1016/s0370-2693(03)00246-6

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