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The measurement of alpha(8) from event shapes with the DELPHI detector at the highest LEP energies

Abstract:

Hadronic event shape distributions are determined from data in e +e- collisions between 183 and 207 GeV. From these the strong coupling αs is extracted in O(αs2), NLLA and matched O(αs2)+NLLA theory. Hadronisation corrections evaluated with fragmentation model generators as well as an analytical power ansatz are applied. Comparing these measurements to those obtained at and around Mz allows a combined measurement of αs from all DELPHI data and a test of the energy dependence of the strong cou...

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Publication status:
Published

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Publisher copy:
10.1140/epjc/s2004-01889-x

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Journal:
EUROPEAN PHYSICAL JOURNAL C More from this journal
Volume:
37
Issue:
1
Pages:
1-23
Publication date:
2004-09-01
DOI:
EISSN:
1434-6052
ISSN:
1434-6044
Language:
English
Pubs id:
pubs:220964
UUID:
uuid:f7232d10-1866-495a-b019-7cc9bdf5ba7c
Local pid:
pubs:220964
Source identifiers:
220964
Deposit date:
2012-12-19

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