A Dependence Study of $\Xi^{*0}$ and $\bar{\Xi}^{*0}$ in 250 GeV/c $\pi^-$. $K^-$ -nucleon Interactions

Seixas de Rezende, Fabio Antonio ; /Rio de Janeiro, CBPF

Fermi National Accelerator Laboratory

关键词: Copper;    Aluminium;    Targets;    Experiment-Hep;    Hyperons;   

DOI  :  10.2172/1028847
RP-ID  :  FERMILAB-MASTERS-2005-04
RP-ID  :  AC02-07CH11359
RP-ID  :  1028847

美国|其它

来源: UNT Digital Library

【 摘 要 】

A direct measurement of the mass number (A) dependence of the production of the hyperon {Xi}*{sup 0} and its opposite {bar {Xi}}*{sup 0} in {pi}{sup -}, K{sup -} beam-nucleon interactions at 250 GeV/c is reported. The data derive from the experiment E769 at Fermilab. The results were obtained for different targets: Be, Al, Cu and W. It was observed the data are found to be well described by the parametrization {sigma}{sub A} = {sigma}{sub 0}A{sup {alpha}}, {alpha} being calculated for different beams. The results obtained are compared with those results of E769 experiment. The results shown here are preliminary.