Event Shapes from JADE Data and Studies of Power Corrections
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چکیده
منابع مشابه
/ 02 09 02 2 v 1 1 1 Se p 20 02 1 α S and Power Corrections from JADE
Re-analysed JADE data were used to determine αS at √ s = 14-44 GeV on the basis of resummed calculations for event shapes and hadronisation models tuned to LEP data. The combined result is αS(M Z 0) = 0.1194 which is consistent with the world average. Event shapes have also been used to test power corrections based on an analytical model and to verify the gauge structure of QCD. The only non-pe...
متن کامل3 Se p 20 02 1 α S and Power Corrections from JADE
Re-analysed JADE data were used to determine αS at √ s = 14-44 GeV on the basis of resummed calculations for event shapes and hadronisation models tuned to LEP data. The combined result is αS(M Z 0) = 0.1194 which is consistent with the world average. Event shapes have also been used to test power corrections based on an analytical model and to verify the gauge structure of QCD. The only non-pe...
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Recent results from the study of hadronic nal states in deep inelastic scattering at HERA are reviewed. Jet shapes from neutral and charged current interactions at HERA are compared to those from e + e ? annihilation and p p collisions. The (2+1) jet event rate distributions R2+1(Q 2) and y2 are measured using the modiied JADE jet algorithm. The value of the strong coupling constant s is determ...
متن کاملHadronization effects in event shape moments
We study the moments of hadronic event shapes in e + e ‐ annihilation within the context of next-to-next-to-leading order (NNLO) perturbative QCD predictions combined with non-perturbative power corrections in the dispersive model. This model is extended to match the NNLO perturbative prediction. The resulting theoretical expression has been compared to experimental data from JADE and OPAL, and...
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تاریخ انتشار 1999