A study of the $\eta\pi^{+}\pi^{-}$ channel produced in central pp interactions at 450 GeV/c

• Published in: Physics letters. B Vol. 471; pp. 435 - 439
• Main Authors: Barberis, D., Binon, F G., Close, F E., Danielsen, K M., Donskov, S V., Earl, B C., Evans, D., French, B R., Hino, T., Inaba, S., Jacholkowski, A., Jacobsen, T., Khaustov, G V., Kinson, J B., Kirk, A., Kondashov, a A., Lednev, a A., Lenti, V., Minashvili, I., Peigneux, J P., Romanovsky, V., Russakovich, N., Semenov, A., Shagin, P M., Shimizu, H., Singovsky, a V., Sobol, A., Stassinaki, M., Stroot, J P., Takamatsu, K.., Tsuru, T., Villalobos Baillie, O., Votruba, M F., Yasu, Y.
• Format: Journal Article
• Language: English
• Published: Elsevier 2000
• Subjects: High Energy Physics - Experiment; Physics; standards; electronique document; scientific information
• ISSN: 0370-2693
• DOI: 10.1016/S0370-2693(99)01394-5

The reaction pp -> pf (eta pi pi) ps has been studied at 450 GeV/c. There is clear evidence for an a2(1320)pi decay mode of the eta2(1645) and eta2(1870). In addition, there is evidence for an a0(980)pi$ decay mode of both resonances and an f2(1270)eta decay mode of the eta2(1870). No evidence is found for a JPC = 2++ a2(1320)pi wave.