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MEASUREMENT OF THE GAMMA(B-B-OVER-BAR)/GAMMA(HAD) BRANCHING RATIO OF THE Z BY DOUBLE HEMISPHERE TAGGING

Abstract:

Two measurements of {Mathematical expression} are presented. Both measurements use 250000 Z decays taken with the DELPHI detector in 1991 and rely mainly on the precision of the microvertex detector. One tagging method is as simple as possible so that background rates can be reliably predicted by simulation. The other one uses a more involved tagging technique and reduces the dependence on simulation as much as possible. Combining both results, {Mathematical expression} is found to be 0.2209±...

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Publication status:
Published

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Publisher copy:
10.1007/BF01578666

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Journal:
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS
Volume:
65
Issue:
4
Pages:
555-568
Publication date:
1995-02-05
DOI:
EISSN:
1434-6052
ISSN:
0170-9739
URN:
uuid:4cda8d37-3eff-42c5-b9c8-b836ac0fb027
Source identifiers:
1681
Local pid:
pubs:1681
Language:
English

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