TY - JOUR TI - A study of the centrally produced baryon-antibaryon systems in pp interactions at 450 GeV/c AU - Barberis, D AU - Beusch, W AU - Binon, FG AU - Blick, AM AU - Close, FE and AU - Danielsen, KM AU - Dolgopolov, AV AU - Donskov, SV AU - Earl, BC AU - Evans, AU - D AU - French, BR AU - Hino, T AU - Inaba, S AU - Inyakin, AV AU - Ishida, T AU - and Jacholkowski, A AU - Jacobsen, T AU - Jones, GT AU - Khaustov, GV and AU - Kinashi, T AU - Kinson, JB AU - Kirk, A AU - Klempt, W AU - Kolosov, V and AU - Kondashov, AA AU - Lednev, AA AU - Lenti, V AU - Maljukov, S and AU - Martinengo, P AU - Minashvili, I AU - Nakagawa, T AU - Norman, KL and AU - Peigneux, JP AU - Polovnikov, SA AU - Polyakov, VA AU - Romanovsky, V and AU - Rotscheidt, H AU - Rumyantsev, V AU - Russakovich, N AU - Samoylenko, VD AU - and Semenov, A AU - Sene, M AU - Shagin, PM AU - Shimizu, H AU - Singovsky, AU - AV AU - Sobol, A AU - Solovjev, A AU - Stassinaki, M AU - Stroot, JP and AU - Sugonyaev, VP AU - Takamatsu, K AU - Tchlatchidze, G AU - Tsuru, T and AU - Venables, M AU - Baillie, OV AU - Votruba, MF AU - Yasu, Y AU - WA102 AU - Collaboration JO - PHYSICS LETTERS B PY - 1999 VL - 446 TODO - 3-4 SP - 342-348 PB - ELSEVIER SCIENCE BV SN - 0370-2693 TODO - 10.1016/S0370-2693(98)01565-2 TODO - null TODO - A study of the centrally produced p (p) over bar, p (p) over bar pi(0), p (p) over bar pi(+)pi(-) and Lambda Lambda channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. No significant new structures are observed in the mass spectra, however, important new information on the production dynamics is obtained. A systematic study of the production properties of these systems has been performed and it is found that these systems are not produced dominantly by double Pomeron exchange. (C) 1999 Published by Elsevier Science B.V. All rights reserved. ER -