BACKWARD PRODUCTION OF A SPIN-PARITY 1+ K RHO RESONANCE AT 1.28 GEV

BACKWARD PRODUCTION OF A SPIN-PARITY 1+ K RHO RESONANCE AT 1.28 GEV

A (Kππ)+ mass enhancement is observed in the reactions K-p → Ξ -Ko+π+πo- when events with a small (K- → Ξ-) four momentum transfer squared are selected. The signal is also visible in the reaction K-p → Ξ-π++ neutrals. The enhancement, centered at 1.28 GeV, is seen to decay preferentially into Kρ{var...

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Bibliografske podrobnosti
Main Authors: Gavillet, P, Diaz, J, Dionisi, C, Gurtu, A, Hemingway, R, Losty, M, Marin, J, Mazzucato, M, Montanet, L, Pagiola, E, Blokzijl, R, Jongejans, B, Massaro, G, Voorthuis, H, Engelen, J, Kittel, W, Vergeest, J, Vandewalle, R, Foster, B, Grossmann, P, Mcdowell, W
Format: Journal article
Jezik:English
Izdano: 1978
Opis
Izvleček:A (Kππ)+ mass enhancement is observed in the reactions K-p → Ξ -Ko+π+πo- when events with a small (K- → Ξ-) four momentum transfer squared are selected. The signal is also visible in the reaction K-p → Ξ-π++ neutrals. The enhancement, centered at 1.28 GeV, is seen to decay preferentially into Kρ{variant} with spin-parity JP = 1+. The cross section for K-p→ Ξ-C+(1.28) with C+ → Kρ{variant} at 4.15 GeV/c incident K- momentum is (6.2 ± 0.6) μb. © 1978.

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