Production of η' mesons in the pp→ ppη' reaction at 3.67 GeV/ c

• Published in: Physics letters. B Vol. 491; no. 1; pp. 29 - 35
• Main Authors: Balestra, F., Bedfer, Y., Bertini, R., Bland, L.C., Brenschede, A., Brochard, F., Bussa, M.P., Choi, Seonho, Debowski, M., Dzemidzic, M., Faivre, J.-Cl, Falomkin, I.V., Fava, L., Ferrero, L., Foryciarz, J., Fröhlich, I., Frolov, V., Garfagnini, R., Grasso, A., Heinz, S., Ivanov, V.V., Jacobs, W.W., Kühn, W., Maggiora, A., Maggiora, M., Manara, A., Panzieri, D., Pfaff, H.-W., Piragino, G., Pontecorvo, G.B., Popov, A., Ritman, J., Salabura, P., Tchalyshev, V., Tosello, F., Vigdor, S.E., Zosi, G.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 12.10.2000
• Subjects: Proton–proton final state interaction; η′ meson; 14.40.Cs; 25.40.Ve; 13.75.Cs; η ′ meson; Proton–proton final state interaction
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/S0370-2693(00)01015-7

The ratio of the total exclusive production cross sections for η' and η mesons has been measured in the pp reaction at p beam=3.67 GeV/ c. The observed η ′/ η ratio is (0.83±0.11 +0.23 −0.18)×10 −2 from which the exclusive η ′ meson production cross section is determined to be (1.12±0.15 +0.42 −0.31) μb. Differential cross section distributions have been measured. Their shape is consistent with isotropic η ′ meson production.