Search for the U(3. 1)-- anti. Lambda. p. pi. 's from anti p p interactions at 8 GeV/c

A search for the U(3.1) resonance decaying into {anti {lambda}}p{pi}'s final states has been performed with negative results. The cross section upper limits are between 10 and 25 nanobarns. These cross sections are one or two order of magnitude lower than expected from previous results. Mass spectra of various final states are presented. 7 refs., 4 figs., 1 tab

Partial wave analysis of K anti K. pi. from anti p p yields K sup + anti K sup 0. pi. sup minus X at 8 GeV/c

We present the results of an amplitude analysis of the spin parity components as a function of mass of the (K{sup +}{bar K}{sup 0}{pi}{sup {minus}}) system as produced in the reaction {bar p}p {yields} (K{sup +}{bar K}{sup 0}{pi}{sup {minus}}) X. Two peaks are observed in the (K{sup {minus}}{bar K}{sup 0}{pi}{sup {minus}}) spectrum, one at (1279 {plus minus} 2) MeV/c{sup 2} with a width of (21 {plus minus} 2) MeV/c{sup 2}, and one at (1417 {plus minus} 3) MeV/c{sup 2} with a width of (62 {plus minus} 5) MeV/c{sup 2}. The amplitude analysis was performed in sixteen 20 MeV/c{sup 2} mass intervals from 1.24 to 1.56 GeV/c{sup 2}. The waves used for the fitting were J{sup PG} = 0{sup {minus}+}, 1{sup ++}, 1{sup +{minus}}, and background. 12 refs., 8 figs

First observation of. Lambda. sup 0 ,. Lambda. sup 0 ,K sub s sup 0 production in relativistic heavy ion collisions at the AGS (Alternating Gradient Synchrotron)

We report here the first observation of inclusive {Lambda}{sup 0}, {bar {Lambda}}{sup 0}, K{sub s}{sup 0} production in nucleus-nucleus collisions at 14.5 GeV/n. 11 refs., 6 figs