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Languages : en
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Bose-einstein Correlations Observed in E+ E- Annihilation at a Center-of-mass Energy of 34-GeV
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Languages : en
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Bose-Einstein Correlations Observed in E+e- Annihilation at a Centre of Mass Energy of 34 GeV
Author: Tasso Collaboration
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Category :
Languages : en
Pages : 26
Book Description
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Languages : en
Pages : 26
Book Description
Bose-Einstein correlations observed in e- annihilation at a centre of mass energy of 34 GeV
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Languages : de
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Bose-Einstein Correlations of Pions in Ee− Annihilation at 29 GeV Center-of-mass Energy
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Languages : en
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Measurements of two- and three-particle correlations between like-sign pions produced in ee− annihilation at 29 GeV center-of-mass energy are presented. The analysis is based on data taken during the period 1982--1986 using the TPC/2.gamma. detector at PEP. Two-particle correlations are studied as a function of Q, the momentum difference as measured in the rest frame of the pion pair, and as a function of q0, the energy difference as measured in the lab frame. The Bose-Einstein enhancement is observed when Q is small even when the energy difference, q0, is substantial. This observation provides evidence that the Bose-Einstein correlations are best described by a model that correctly accounts for the relativistic motion of the particle sources. Three-pion correlations are measured both by using a standard three-pion correlation function, and also by using a correlation function for which the correlations between the pairs of pions within the triplet have been subtracted. The observation of three-pion correlations after pair correlations have been subtracted supports the interpretation that the observed correlations are due to Bose-Einstein interference. 56 refs.
Publisher:
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Languages : en
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Book Description
Measurements of two- and three-particle correlations between like-sign pions produced in ee− annihilation at 29 GeV center-of-mass energy are presented. The analysis is based on data taken during the period 1982--1986 using the TPC/2.gamma. detector at PEP. Two-particle correlations are studied as a function of Q, the momentum difference as measured in the rest frame of the pion pair, and as a function of q0, the energy difference as measured in the lab frame. The Bose-Einstein enhancement is observed when Q is small even when the energy difference, q0, is substantial. This observation provides evidence that the Bose-Einstein correlations are best described by a model that correctly accounts for the relativistic motion of the particle sources. Three-pion correlations are measured both by using a standard three-pion correlation function, and also by using a correlation function for which the correlations between the pairs of pions within the triplet have been subtracted. The observation of three-pion correlations after pair correlations have been subtracted supports the interpretation that the observed correlations are due to Bose-Einstein interference. 56 refs.
Bose-Einstein Correlations of Pions in E+e± Annihilation at 29 GeV Center-of-mass Energy
Author: Robert Ellsworth Avery
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Languages : en
Pages : 290
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Category :
Languages : en
Pages : 290
Book Description
Physics Briefs
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Category : Physics
Languages : en
Pages : 1264
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Category : Physics
Languages : en
Pages : 1264
Book Description
Inclusive Hadron Production and Two Particle Correlations in Ee− Annihilation at 29 GeV Center-of-mass Energy
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Languages : en
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We have studied hadron production in ee− annihilation at 29 GeV center-of-mass energy using the PEP-4 Time Projection Chamber Detector. The inclusive cross sections and mean multiplicities for .pi./sup + -/, K/sup + -/ and (p + anti p) production have been measured using ionization energy loss to separate particle species. We find on average 10.7 +- 0.6 .pi./sup + -/, 1.35 +- 13 K/sup + -/ and 0.60 +- 0.08 (p + anti p) per multihadron event. The differential cross section is well described by a number of Monte Carlo hadronization models. In addition, we have observed correlations in rapidity space for identified pions and kaons. Short-range KK correlations provide evidence for local flavor compensation during hadronization. Long-range .pi pi. and KK correlations indicate that the initial partons carry flavor. We also observe significant long-range .pi. K correlations as a result of heavy quark decays. 85 references, 67 figures, 11 tables.
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Languages : en
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We have studied hadron production in ee− annihilation at 29 GeV center-of-mass energy using the PEP-4 Time Projection Chamber Detector. The inclusive cross sections and mean multiplicities for .pi./sup + -/, K/sup + -/ and (p + anti p) production have been measured using ionization energy loss to separate particle species. We find on average 10.7 +- 0.6 .pi./sup + -/, 1.35 +- 13 K/sup + -/ and 0.60 +- 0.08 (p + anti p) per multihadron event. The differential cross section is well described by a number of Monte Carlo hadronization models. In addition, we have observed correlations in rapidity space for identified pions and kaons. Short-range KK correlations provide evidence for local flavor compensation during hadronization. Long-range .pi pi. and KK correlations indicate that the initial partons carry flavor. We also observe significant long-range .pi. K correlations as a result of heavy quark decays. 85 references, 67 figures, 11 tables.
High Energy Physics Index
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Category : Particles (Nuclear physics)
Languages : en
Pages : 640
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Category : Particles (Nuclear physics)
Languages : en
Pages : 640
Book Description
INIS Atomindex
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Category : Nuclear energy
Languages : en
Pages : 810
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Category : Nuclear energy
Languages : en
Pages : 810
Book Description
Particle correlation observed in e_1hn+e_1hn- [ee] annihilation into handrons at c.m. energies between 29 and 37 GeV
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Languages : de
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Category :
Languages : de
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