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ENHANCEMENT AT THE SIGMA-KBAR THRESHOLD (1680) MEV OBSERVED IN K-P REACTIONS AT 4.2 GEV-C

PHYSICS LETTERS B 80:1-2 (1978) 145-149

Authors:

C DIONISI, J DIAZ, R ARMENTEROS, P GAVILLET, A GURTU, RJ HEMINGWAY, M MAZZUCATO, R BLOKZIJL, JC KLUYVER, GGG MASSARO, WJ METZGER, J SCHOTANUS, HG TIECKE, B FOSTER, PR LAMB, WL MCDOWELL
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OMEGA-PRODUCED IN K-P REACTIONS AT 4.2 GEV-C

NUCLEAR PHYSICS B 142:3 (1978) 205-219

Authors:

RJ HEMINGWAY, R ARMENTEROS, C DIONISI, P GAVILLET, A GURTU, SO HOLMGREN, MJ LOSTY, JC MARIN, M MAZZUCATO, L MONTANET, M BANTING, R BLOKZIJL, AJ DEGROOT, B JONGEJANS, JC KLUYVER, WM VANLEEUWEN, GGG MASSARO, AG TENNER, GF WOLTERS, PM HEINEN, EW KITTEL, WJ METZGER, HGJM TIECKE, JJM TIMMERMANS, RT VANDEWALLE, B FOSTER, P GROSSMANN, PR LAMB, JL LLOYD, J WELLS
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RARE DECAY MODES OF K-STAR(1420) AND K-STAR(892)

NUCLEAR PHYSICS B 139:4 (1978) 383-393

Authors:

B JONGEJANS, R BLOKZIJL, JC KLUYVER, GGG MASSARO, H VOORTHUIS, M CERRADA, P GAVILLET, RJ HEMINGWAY, MJ LOSTY, JJ ENGELEN, WJ METZGER, CLA POLS, B FOSTER, L MCDOWELL, J WELLS
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A measurement of the η′ spin parity

Nuclear Physics, Section B 126:2 (1977) 189-202

Authors:

M Cerrada, F Wagner, V Chaloupka, RJ Hemingway, SO Holmgren, MJ Losty, PF Loverre, F Marzano, R Blokzijl, B Jongejans, GGG Massaro, DJ Schotanus, HG Tiecke, JJM Timmermans, B Foster, WL McDowell

Abstract:

The spin parity of the η′ (958) is studied in the reaction K-p → η'Λ at 4.2 GeV/c, using bubble chamber data with a statistical sensitivity of 128 events/μb. The data unambiguously prefer the 0- assignment. © 1977.
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A partial-wave analysis of the 3π system in the reaction K-p → π+π-π0 Λ at 4.2 GeV/c

Nuclear Physics, Section B 126:2 (1977) 241-265

Authors:

M Cerrada, F Wagner, V Chaloupka, RJ Hemingway, SO Holmgren, MJ Losty, R Blokzijl, GGG Massaro, GF Wolters, PM Heinen, EW Kittel, WJ Metzger, JSM Vergeest, B Foster, J Wells

Abstract:

A partial-wave analysis of the (3π)0 system produced peripherally in the reaction K-p → π+π-π0 Λ at 4.2 GeV/c is presented. The observation of the weak Λ decay allows a determination of all the transversity production amplitudes except for two phases. The production of known resonances having decay modes other than 3π is used to test the isobar model ansatz. Significant ω(783), φ(1020) and A2(1310) production is observed. The spin parity of the ω*(1675) is established as 3-. No evidence for production of other resonances, such as axial vector-mesons, is found. © 1977.
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