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Near threshold Lambda and Sigma production in pp collisions | | A.M. Gasparian
; J. Haidenbauer
; C. Hanhart
; L. Kondratyuk
; J. Speth
; | | Date: |
30 Jun 2000 | | Journal: | Nucl.Phys. A684 (2001) 397-399 | | Subject: | nucl-th | | Abstract: | A model calculation for the reactions $pp o pLambda K^+$ and $pp o NSigma K$ near their thresholds is presented. It is argued that the experimentally observed strong suppression of $Sigma^0$ production compared to $Lambda$ production at the same excess energy could be due to a destructive interference between the $pi$ and $K$ exchange contributions in the reaction $pp o pSigma^0 K^+$. Predictions for $pp o pSigma^+ K^0$ and $pp o nSigma^+ K^+$ are given. | | Source: | arXiv, nucl-th/0006080 | | Services: | Forum | Review | PDF | Favorites | |
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