Measurement of αs(MZ2) from hadronic event observables at the Z0 resonance
Physical Review D - Particles, Fields, Gravitation and Cosmology Volume 51 Issue 3
Page 962-984
published_at 1995-02-01
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| File | |
| Title ( eng ) |
Measurement of αs(MZ2) from hadronic event observables at the Z0 resonance
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| Creator |
SLD Collaboration
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| Source Title |
Physical Review D - Particles, Fields, Gravitation and Cosmology
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| Volume | 51 |
| Issue | 3 |
| Start Page | 962 |
| End Page | 984 |
| Abstract |
The strong coupling αs(MZ2) has been measured using hadronic decays of Z0 bosons collected by the SLD experiment at SLAC. The data were compared with QCD predictions both at fixed order O(αs2) and including resummed analytic formulas based on the next-to-leading logarithm approximation. In this comprehensive analysis we studied event shapes, jet rates, particle correlations, and angular energy flow, and checked the consistency between αs(MZ2) values extracted from these different measures. Combining all results we obtain αs(MZ2)= 0.1200±0.0025 (expt) ±0.0078 (theor), where the dominant uncertainty is from uncalculated higher order contributions.
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
American Physical Society
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| Date of Issued | 1995-02-01 |
| Rights |
Copyright (c) 1995 American Physical Society.
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| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 1550-7998
[DOI] 10.1103/PhysRevD.51.962
[NCID] AA00773624
[DOI] http://dx.doi.org/10.1103/PhysRevD.51.962
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