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The Source Size Dependence on the $M_{hadron}$ Applying Fermi and Bose Statistics and I-Spin Invariance
The emission volume sizes of pions and Kaons, r_{\pi^\pm \pi^\pm} and r_{K^\pm K^\pm}, measured in the hadronic Z^0 decays via the Bose-Einstein Correlations (BEC), and the recent measurements of r_{\Lambda\Lambda} obtained by through the Pauli exclusion principle are used to study the r dependence...
Autores principales: | , |
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Lenguaje: | eng |
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1999
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Acceso en línea: | http://cds.cern.ch/record/399166 |
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author | Alexander, Gideon Cohen, I |
author_facet | Alexander, Gideon Cohen, I |
author_sort | Alexander, Gideon |
collection | CERN |
description | The emission volume sizes of pions and Kaons, r_{\pi^\pm \pi^\pm} and r_{K^\pm K^\pm}, measured in the hadronic Z^0 decays via the Bose-Einstein Correlations (BEC), and the recent measurements of r_{\Lambda\Lambda} obtained by through the Pauli exclusion principle are used to study the r dependence on the hadron mass. A clear r_{\pi^\pm \pi^\pm} > r_{K^\pm K^\pm} > r_{\Lambda (LUND) model expectation. An adequate description of r(m) is obtained via the Heisenberg uncertainty relations and also by Local Parton Hadron Duality approach using a general QCD potential. These lead to a relation of the type r(m) ~ Constant/sqrt{m}. The present lack of knowledge on the f_o(980) decay rate to the K^0\bar{K}^0 channel prohibits the use of the r_{K^0_SK^0_S} in the r(m) analysis. The use of a generalised BEC and I-spin invariance, which predicts an BEC enhancement also in the K^{\pm}K^0 and \pi^{\pm}\pi^0 systems, should in the future help to include the r_{K^0_SK^0_S} in the r(m) analysis. |
id | cern-399166 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 1999 |
record_format | invenio |
spelling | cern-3991662019-09-30T06:29:59Zhttp://cds.cern.ch/record/399166engAlexander, GideonCohen, IThe Source Size Dependence on the $M_{hadron}$ Applying Fermi and Bose Statistics and I-Spin InvarianceParticle Physics - PhenomenologyThe emission volume sizes of pions and Kaons, r_{\pi^\pm \pi^\pm} and r_{K^\pm K^\pm}, measured in the hadronic Z^0 decays via the Bose-Einstein Correlations (BEC), and the recent measurements of r_{\Lambda\Lambda} obtained by through the Pauli exclusion principle are used to study the r dependence on the hadron mass. A clear r_{\pi^\pm \pi^\pm} > r_{K^\pm K^\pm} > r_{\Lambda (LUND) model expectation. An adequate description of r(m) is obtained via the Heisenberg uncertainty relations and also by Local Parton Hadron Duality approach using a general QCD potential. These lead to a relation of the type r(m) ~ Constant/sqrt{m}. The present lack of knowledge on the f_o(980) decay rate to the K^0\bar{K}^0 channel prohibits the use of the r_{K^0_SK^0_S} in the r(m) analysis. The use of a generalised BEC and I-spin invariance, which predicts an BEC enhancement also in the K^{\pm}K^0 and \pi^{\pm}\pi^0 systems, should in the future help to include the r_{K^0_SK^0_S} in the r(m) analysis.hep-ph/9909288TAUP-2598oai:cds.cern.ch:3991661999-09-09 |
spellingShingle | Particle Physics - Phenomenology Alexander, Gideon Cohen, I The Source Size Dependence on the $M_{hadron}$ Applying Fermi and Bose Statistics and I-Spin Invariance |
title | The Source Size Dependence on the $M_{hadron}$ Applying Fermi and Bose Statistics and I-Spin Invariance |
title_full | The Source Size Dependence on the $M_{hadron}$ Applying Fermi and Bose Statistics and I-Spin Invariance |
title_fullStr | The Source Size Dependence on the $M_{hadron}$ Applying Fermi and Bose Statistics and I-Spin Invariance |
title_full_unstemmed | The Source Size Dependence on the $M_{hadron}$ Applying Fermi and Bose Statistics and I-Spin Invariance |
title_short | The Source Size Dependence on the $M_{hadron}$ Applying Fermi and Bose Statistics and I-Spin Invariance |
title_sort | source size dependence on the $m_{hadron}$ applying fermi and bose statistics and i-spin invariance |
topic | Particle Physics - Phenomenology |
url | http://cds.cern.ch/record/399166 |
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