A study of the centrally produced π+π−π0channel in pp interactions at 450 GeV/c

• Published in: Physics letters. B Vol. 422; no. 1; pp. 399 - 404
• Main Authors: Barberis, D., Beusch, W., Binon, F.G., Blick, A.M., Close, F.E., Danielsen, K.M., Dolgopolov, A.V., Donskov, S.V., Earl, B.C., Evans, D., French, B.R., Hino, T., Inaba, S., Inyakin, A.V., Ishida, T., Jacholkowski, A., Jacobsen, T., Khaustov, G.V., Kinashi, T., Kinson, J.B., Kirk, A., Klempt, W., Kolosov, V., Kondashov, A.A., Lednev, A.A., Lenti, V., Maljukov, S., Martinengo, P., Minashvili, I., Myklebost, K., Nakagawa, T., Norman, K.L., Olsen, J.M., Peigneux, J.P., Polovnikov, S.A., Polyakov, V.A., Prokoshkin, Yu.D., Romanovsky, V., Rotscheidt, H., Rumyantsev, V., Russakovich, N., Samoylenko, V.D., Semenov, A., Sené, M., Sené, R., Shagin, P.M., Shimizu, H., Singovsky, A.V., Sobol, A., Solovjev, A., Stassinaki, M., Stroot, J.P., Sugonyaev, V.P., Takamatsu, K., Tchlatchidze, G., Tsuru, T., Vassiliadis, G., Venables, M., Villalobos Baillie, O., Votruba, M.F., Yasu, Y.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-03-1998
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/S0370-2693(98)00063-X

The reaction
pp→
p
f
(
π
+
π
−
π
0)
p
s
has been studied at 450 GeV/c in an experiment designed to search for gluonic states. A spin analysis has been performed and the
dP
T
filter applied. The analysis confirms the previous observation that all undisputed
q
q
states are suppressed at small
dP
T
. In addition, a clear difference is observed in the production mechanism for the
η and
ω.