Quark gluon plasma in antiproton annihilations on nuclei

Annihilation of antiprotons on nuclei is capable to create highly excited states of nuclear matter. Conventional interpretation of recent data on strange particle production in 4 GeV/c antiproton annihilations on Ta has not been able to account for the high observed production of strangeness, and in particular the lambda particles. However, assuming quark gluon plasma formation at rather modest temperature T<60 MeV along with a simple reaction model in which antiprotons deposit energy in the forward cone of nuclear matter within the target nucleus, the observed spectra and total abundances of lambdas and kaons are found to agree with theory