منابع مشابه
α ms ) Corrections in e + e − Annihilation and τ Decay
The results of evaluation of mixed QED×QCD corrections to R(s) in e+e− annihilation and Rτ in hadronic decay of the τ lepton to O(α αs ), m+n ≤ 3, are presented. The net effect on αs(MZ) from the Z decay is only about 0.1% and in the τ decay case the net effect is negligible, as expected. PACS numbers: 12.38.Bx, 13.38.Dg Typeset using REVTEX ∗[email protected] 1 Inclusive processes of the ...
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Generally, ICT research in education gives a daily meaning to the training through the technology or amplifies the social discourse on socially constructed informal reality. Whatever option is chosen, the discourse on ICT gives foundation to the tools as training or learning outlines. e still are in the "learning" of the e-learning where the "e" becomes subordinate. However, the ICTs are not on...
متن کاملDeterminations of α S and tests of analytic hadronisation models using e + e − annihilation data
We report results on measurements of the strong coupling αS from event shape data at PETRA and LEP. Their distributions are analysed employing the new NLLO+NLLA calculations and hadronisation correction by Monte Carlo models using JADE data. This results in a very precise measurement of the strong coupling, αS(mZ0) = 0.1172±0.0051. The running of the strong coupling is confirmed significantly. ...
متن کاملMist&-e Annihilation Games*
Graph games with an annihilation rule, as introduced by Conway, Fraenkel and Yesha, are studied under the midre play rule for progressively finite graphs that satisfy a condition on the reversibility of non-terminal Sprague-Grundy zeros to Spragu+Grundy ones. Two general theorems on the Spragu+Grundy zeros and ones are given, followed by two theorems characterizing the set of P-positions under ...
متن کاملMeasurement of the Strong Coupling Constant α S from the Four - Jet Rate in e + e − Annihilation using JADE data
Data from e + e − annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 GeV and 44 GeV were used to study the four-jet rate as a function of the Durham algorithm's resolution parameter y cut. The four-jet rate was compared to a QCD NLO order calculations including NLLA resummation of large logarithms. The strong coupling constant measured from the four...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1974
ISSN: 0550-3213
DOI: 10.1016/0550-3213(74)90204-1