The reactions K/sup -/p to lambda pi /sup 0/, Lambda eta , Lambda eta ' at 42 GeV/c

In a high statistics CERN 2 m bubble chamber experiment the different cross sections and polarizations of the Lambda for the reactions K/sup -/p to Lambda pi /sup 0/, Lambda eta , lambda eta ' at 4.2 GeV/c have been measured. The reaction K/sup -/p to Lambda eta exhibits a pronounced dip around...

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Detalles Bibliográficos
Autores principales: Marzano, F, Blokzijl, R, Hemingway, R J, Hoogland, W, Kluyver, J C, Loverre, P F, Maréchal, B, Massaro, G G G, Schrempp, Barbara, Tiecke, H G, Van de Walle, R T, Vergeest, J S M
Lenguaje:eng
Publicado: 1977
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(77)90459-X
http://cds.cern.ch/record/878592
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author Marzano, F
Blokzijl, R
Hemingway, R J
Hoogland, W
Kluyver, J C
Loverre, P F
Maréchal, B
Massaro, G G G
Schrempp, Barbara
Tiecke, H G
Van de Walle, R T
Vergeest, J S M
author_facet Marzano, F
Blokzijl, R
Hemingway, R J
Hoogland, W
Kluyver, J C
Loverre, P F
Maréchal, B
Massaro, G G G
Schrempp, Barbara
Tiecke, H G
Van de Walle, R T
Vergeest, J S M
author_sort Marzano, F
collection CERN
description In a high statistics CERN 2 m bubble chamber experiment the different cross sections and polarizations of the Lambda for the reactions K/sup -/p to Lambda pi /sup 0/, Lambda eta , lambda eta ' at 4.2 GeV/c have been measured. The reaction K/sup -/p to Lambda eta exhibits a pronounced dip around -t approximately 0.5 (GeV/c)/sup 2/ and all three reactions show a significant backward peaking (-u<1.0 (GeV/c) /sup 2/). The Lambda polarization in the reaction K/sup -/p to Lambda pi /sup 0/ is measured to be significantly different from zero throughout most of the available t-range. Forward cross sections enable a determination of R/sub T/, the ratio of singlet/octet coupling eta /sub 1/KK**/ eta /sub 8/KK**. Backward cross sections are utilized to estimate the effective eta -nucleon coupling constant g /sub eta NN//sup 2/ over the -u range 0-1.5 (GeV/c)/sup 2/. (14 refs).
id cern-878592
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1977
record_format invenio
spelling cern-8785922019-09-30T06:29:59Zdoi:10.1016/0550-3213(77)90459-Xhttp://cds.cern.ch/record/878592engMarzano, FBlokzijl, RHemingway, R JHoogland, WKluyver, J CLoverre, P FMaréchal, BMassaro, G G GSchrempp, BarbaraTiecke, H GVan de Walle, R TVergeest, J S MThe reactions K/sup -/p to lambda pi /sup 0/, Lambda eta , Lambda eta ' at 42 GeV/cParticle Physics - PhenomenologyIn a high statistics CERN 2 m bubble chamber experiment the different cross sections and polarizations of the Lambda for the reactions K/sup -/p to Lambda pi /sup 0/, Lambda eta , lambda eta ' at 4.2 GeV/c have been measured. The reaction K/sup -/p to Lambda eta exhibits a pronounced dip around -t approximately 0.5 (GeV/c)/sup 2/ and all three reactions show a significant backward peaking (-u<1.0 (GeV/c) /sup 2/). The Lambda polarization in the reaction K/sup -/p to Lambda pi /sup 0/ is measured to be significantly different from zero throughout most of the available t-range. Forward cross sections enable a determination of R/sub T/, the ratio of singlet/octet coupling eta /sub 1/KK**/ eta /sub 8/KK**. Backward cross sections are utilized to estimate the effective eta -nucleon coupling constant g /sub eta NN//sup 2/ over the -u range 0-1.5 (GeV/c)/sup 2/. (14 refs).oai:cds.cern.ch:8785921977
spellingShingle Particle Physics - Phenomenology
Marzano, F
Blokzijl, R
Hemingway, R J
Hoogland, W
Kluyver, J C
Loverre, P F
Maréchal, B
Massaro, G G G
Schrempp, Barbara
Tiecke, H G
Van de Walle, R T
Vergeest, J S M
The reactions K/sup -/p to lambda pi /sup 0/, Lambda eta , Lambda eta ' at 42 GeV/c
title The reactions K/sup -/p to lambda pi /sup 0/, Lambda eta , Lambda eta ' at 42 GeV/c
title_full The reactions K/sup -/p to lambda pi /sup 0/, Lambda eta , Lambda eta ' at 42 GeV/c
title_fullStr The reactions K/sup -/p to lambda pi /sup 0/, Lambda eta , Lambda eta ' at 42 GeV/c
title_full_unstemmed The reactions K/sup -/p to lambda pi /sup 0/, Lambda eta , Lambda eta ' at 42 GeV/c
title_short The reactions K/sup -/p to lambda pi /sup 0/, Lambda eta , Lambda eta ' at 42 GeV/c
title_sort reactions k/sup -/p to lambda pi /sup 0/, lambda eta , lambda eta ' at 42 gev/c
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0550-3213(77)90459-X
http://cds.cern.ch/record/878592
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