engleski

Cascade production in p+p, p+A and A+A interactions at 158 AGeV

The NA49 experiment has measured the strange and multistrange baryons in minimum bias p+p, centrality selected p+Pb and central Pb+Pb collisions. We observe that the yields increase faster than the number of wounded nucleons when comparing p+Pb to p+p. As already observed in A+A collisions, the increase is larger for multistrange than for strange baryons and for baryons than for antibaryons. The antibaryon to baryon ratio at mid-rapidity shows a smooth decrease from p+p to Pb+Pb collisions.

strange particles; NA49; proton proton collision

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