Baryon antibaryon production in the central region at 85 GeV/c

In a search for glueballs and exotic states decaying into baryons and antibaryons we have investigated the production of baryon antibaryon pairs produced centrally in the reactions π⁺/pp → π⁺/p(X⁰)p at 85 GeV/c. In particular, channels whereX⁰ goes to <img src="/fulltext-image.asp?format=htmlnonpaginated&src=X6T6612612X21464_html\10052_2005_Article_BF01408445_TeX2GIFIE1.gif" border="0" alt=" $$p\bar p,p\bar p\pi ^ + \pi ^ - ,p\bar p2\pi ^ + 2\pi ^ - $$ " /> and <img src="/fulltext-image.asp?format=htmlnonpaginated&src=X6T6612612X21464_html\10052_2005_Article_BF01408445_TeX2GIFIE2.gif" border="0" alt=" $$\Lambda \bar \Lambda $$ " /> have been observed. No significant new structure is observed in the mass spectra.