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A measurement of the $\beta$-parameter in the charged nonleptonic decay of the $\Lambda^{0}$ hyperon

The authors obtain for the beta -parameter in the decay Lambda /sup 0/ to pi /sup -/p the value beta =-0.094+or-0.060. This value agrees with the theoretical prediction based on T-invariance and the mod Delta I mod =/sup 1///sub 2/ rule, taking into account the effects of final state interactions. T...

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Detalles Bibliográficos
Autores principales: Cleland, W E, Conforto, G, Eaton, G H, Gautschi, A, Gerber, H J, Heer, E, Reinharz, Max, Revillard, C, von Dardel, Guy F
Lenguaje:eng
Publicado: 1972
Materias:
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(72)90544-5
http://cds.cern.ch/record/875748
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author Cleland, W E
Conforto, G
Eaton, G H
Gautschi, A
Gerber, H J
Heer, E
Reinharz, Max
Revillard, C
von Dardel, Guy F
author_facet Cleland, W E
Conforto, G
Eaton, G H
Gautschi, A
Gerber, H J
Heer, E
Reinharz, Max
Revillard, C
von Dardel, Guy F
author_sort Cleland, W E
collection CERN
description The authors obtain for the beta -parameter in the decay Lambda /sup 0/ to pi /sup -/p the value beta =-0.094+or-0.060. This value agrees with the theoretical prediction based on T-invariance and the mod Delta I mod =/sup 1///sub 2/ rule, taking into account the effects of final state interactions. The Lambda /sup 0/ were produced by 1.03 and 1.06 GeV/c pi /sup -/ in a liquid hydrogen target, and the polarization of the recoil proton was measured in a carbon-plate spark chamber polarimeter. The triggering conditions were successfully designed to select events of the configuration best adapted to the determination of the beta -parameter. (22 refs).
id cern-875748
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1972
record_format invenio
spelling cern-8757482019-09-30T06:29:59Zdoi:10.1016/0550-3213(72)90544-5http://cds.cern.ch/record/875748engCleland, W EConforto, GEaton, G HGautschi, AGerber, H JHeer, EReinharz, MaxRevillard, Cvon Dardel, Guy FA measurement of the $\beta$-parameter in the charged nonleptonic decay of the $\Lambda^{0}$ hyperonParticle Physics - PhenomenologyThe authors obtain for the beta -parameter in the decay Lambda /sup 0/ to pi /sup -/p the value beta =-0.094+or-0.060. This value agrees with the theoretical prediction based on T-invariance and the mod Delta I mod =/sup 1///sub 2/ rule, taking into account the effects of final state interactions. The Lambda /sup 0/ were produced by 1.03 and 1.06 GeV/c pi /sup -/ in a liquid hydrogen target, and the polarization of the recoil proton was measured in a carbon-plate spark chamber polarimeter. The triggering conditions were successfully designed to select events of the configuration best adapted to the determination of the beta -parameter. (22 refs).oai:cds.cern.ch:8757481972
spellingShingle Particle Physics - Phenomenology
Cleland, W E
Conforto, G
Eaton, G H
Gautschi, A
Gerber, H J
Heer, E
Reinharz, Max
Revillard, C
von Dardel, Guy F
A measurement of the $\beta$-parameter in the charged nonleptonic decay of the $\Lambda^{0}$ hyperon
title A measurement of the $\beta$-parameter in the charged nonleptonic decay of the $\Lambda^{0}$ hyperon
title_full A measurement of the $\beta$-parameter in the charged nonleptonic decay of the $\Lambda^{0}$ hyperon
title_fullStr A measurement of the $\beta$-parameter in the charged nonleptonic decay of the $\Lambda^{0}$ hyperon
title_full_unstemmed A measurement of the $\beta$-parameter in the charged nonleptonic decay of the $\Lambda^{0}$ hyperon
title_short A measurement of the $\beta$-parameter in the charged nonleptonic decay of the $\Lambda^{0}$ hyperon
title_sort measurement of the $\beta$-parameter in the charged nonleptonic decay of the $\lambda^{0}$ hyperon
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/0550-3213(72)90544-5
http://cds.cern.ch/record/875748
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