Momentum distributions of strange and anti-strange quarks in the proton*

Strangeness in the proton has been confirmed by experiment. We are using the statistical method of Zhang et al. [1], which explained the $\bar{u}-\bar{d}$ asymmetry in the proton. We expand the model to include strange quarks, to explain the existence of strangeness in the proton. We used RAMBO [2] in order to create a Bjorken-x distribution for the partons in the proton. We adjusted RAMBO to include the strange quark mass. In order to suppress the transitions to states that include $s-\bar{s}$ pairs, we calculate energy distributions for the gluons and allow gluons to split into $s-\bar{s}$ pairs only if the gluon is above the energy threshold of twice the mass of a strange quark. We expand our view to include the meson cloud model, attempting a different approach at explaining strangeness in the proton [3]. After $Q^{2}$ evolution, we compare our calculations of strangeness probability and $S^{+}(x)$ to HERMES and ATLAS data, as well as global parton distribution fits.\\[4pt] [1] Yong-Jun Zhang et al., Phys. Lett. B. \textbf{260}, 523 (2001)\\[0pt] [2] R. Kleiss, W.J. Stirling, and S.D. Ellis, Comp. Phys. Comm. \textbf{40} (1986) 359.\\[0pt] [3] F. Cao, and A.I. Signal, Phys. Rev. D. \textbf{60}, 074021 (1999)