On the experimental status of $\Theta^+$ and $\Sigma^+_5$ pentaquarks

We discuss how measurement of $\gamma p\to \Theta^+ K^0_S\to p K^0_S K^0_S \to p\pi^+\pi^-\pi^+\pi^-$ in association with $\gamma p\to \Theta^+ K^0_S\to n K^+ K^0_S$ can help to clarify the nature of the narrow baryon state claimed in $p K^0_S$ invariant mass distributions. This can both establish t...

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Detalles Bibliográficos
Autores principales: Zhao Qiang, Close, Francis Edwin
Lenguaje:eng
Publicado: 2004
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/729679
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author Zhao Qiang
Close, Francis Edwin
author_facet Zhao Qiang
Close, Francis Edwin
author_sort Zhao Qiang
collection CERN
description We discuss how measurement of $\gamma p\to \Theta^+ K^0_S\to p K^0_S K^0_S \to p\pi^+\pi^-\pi^+\pi^-$ in association with $\gamma p\to \Theta^+ K^0_S\to n K^+ K^0_S$ can help to clarify the nature of the narrow baryon state claimed in $p K^0_S$ invariant mass distributions. This can both establish the $\Theta^+$ in a single experiment and also reveal, or place severe limits on, the existence of an associated $\Sigma_5$ pentaquark. A systematic lowering in mass of strangeness ambiguous $pK^0_S$ peaks relative to the $nK^+$ is noted.
id cern-729679
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2004
record_format invenio
spelling cern-7296792019-09-30T06:29:59Zhttp://cds.cern.ch/record/729679engZhao QiangClose, Francis EdwinOn the experimental status of $\Theta^+$ and $\Sigma^+_5$ pentaquarksParticle Physics - PhenomenologyWe discuss how measurement of $\gamma p\to \Theta^+ K^0_S\to p K^0_S K^0_S \to p\pi^+\pi^-\pi^+\pi^-$ in association with $\gamma p\to \Theta^+ K^0_S\to n K^+ K^0_S$ can help to clarify the nature of the narrow baryon state claimed in $p K^0_S$ invariant mass distributions. This can both establish the $\Theta^+$ in a single experiment and also reveal, or place severe limits on, the existence of an associated $\Sigma_5$ pentaquark. A systematic lowering in mass of strangeness ambiguous $pK^0_S$ peaks relative to the $nK^+$ is noted.hep-ph/0404075oai:cds.cern.ch:7296792004
spellingShingle Particle Physics - Phenomenology
Zhao Qiang
Close, Francis Edwin
On the experimental status of $\Theta^+$ and $\Sigma^+_5$ pentaquarks
title On the experimental status of $\Theta^+$ and $\Sigma^+_5$ pentaquarks
title_full On the experimental status of $\Theta^+$ and $\Sigma^+_5$ pentaquarks
title_fullStr On the experimental status of $\Theta^+$ and $\Sigma^+_5$ pentaquarks
title_full_unstemmed On the experimental status of $\Theta^+$ and $\Sigma^+_5$ pentaquarks
title_short On the experimental status of $\Theta^+$ and $\Sigma^+_5$ pentaquarks
title_sort on the experimental status of $\theta^+$ and $\sigma^+_5$ pentaquarks
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/729679
work_keys_str_mv AT zhaoqiang ontheexperimentalstatusofthetaandsigma5pentaquarks
AT closefrancisedwin ontheexperimentalstatusofthetaandsigma5pentaquarks

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