Inclusive neutral vector meson production in hadronicZ 0 decays
Acton, P. D. ; Alexander, G. ; Allison, J. ; Allport, P. P. ; Anderson, K. J. ; Arcelli, S. ; Astbury, A. ; Axen, D. ; Azuelos, G. ; Bahan, G. A. ; Baines, J. T. M. ; Ball, A. H. ; Banks, J. ; Barlow, R. J. ; Barnett, S. ; Batley, J. R. ; Beaudoin, G. ; Beck, A. ; Becker, J. ; Behnke, T. ; Bell, K. W. ; Bella, G. ; Berlich, P. ; Bethke, S. ; Biebel, O.
Springer
Published 1992
Springer
Published 1992
| ISSN: |
1434-6052
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Physics
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| Notes: |
Abstract Results are reported of a study of neutral vector meson production in multihadronicZ 0 decays in the OPAL experiment at LEP. Pions and kaons have been identified by specific ionisation energy loss andK ± π ∓ andK + K − mass spectra have been fitted, in bins of the scaled momentum variablex p , to combinations of resonance signals and non-resonant backgrounds. Rates are given forK *(892)° and ø(1020), and production cross sections are compared to the predictions of Monte Carlo models. Overall multiplicities have been determined as 0.76±0.07±0.06K *(892)° and 0.086±0.015±0.010 ø(1020) per hadronicZ 0 decay (the quoted errors are respectively statistical and systematic). Momentum dependent distortions of the ππ mass spectra, possibly associated indirectly with Bose-Einstein effects, have prevented reliable measurement of the ρ(770)° cross section in this study.
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| Type of Medium: |
Electronic Resource
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| URL: |