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 coupling. © Springer-Verlag / Società Italiana di Fisica 2004.

Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., et al. (2004). The measurement of αs from event shapes with the DELPHI detector at the highest LEP energies. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 37(1), 1-23 [10.1140/epjc/s2004-01889-x].

The measurement of αs from event shapes with the DELPHI detector at the highest LEP energies

CALVI, MARTA;PAGANONI, MARCO;TABARELLI DE FATIS, TOMMASO;
2004

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 coupling. © Springer-Verlag / Società Italiana di Fisica 2004.
Articolo in rivista - Articolo scientifico
Engineering (miscellaneous); Physics and Astronomy (miscellaneous)
English
2004
37
1
1
23
none
Abdallah, J., Abreu, P., Adam, W., Adzic, P., Albrecht, T., Alderweireld, T., et al. (2004). The measurement of αs from event shapes with the DELPHI detector at the highest LEP energies. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 37(1), 1-23 [10.1140/epjc/s2004-01889-x].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/155909
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