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Hadronic event shape distributions from e+e- annihilation measured by the OPAL experiment at centre-of-mass energies between 91 GeV and 209 GeV are used to determine the strong coupling {\alpha}S. The results are based on QCD predictions…

High Energy Physics - Experiment · Physics 2015-05-20 The OPAL Collaboration

Event shape data from e+e- annihilation into hadrons collected by the JADE experiment between sqrt(s)=14 and 44 GeV are used to determine the strong coupling alpha_S. QCD predictionscomplete to next-to-next-to-leading order (NLLO),…

High Energy Physics - Experiment · Physics 2009-06-01 S. Kluth

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 moments of event shape distributions. The data were compared with Monte Carlo models and with…

High Energy Physics - Experiment · Physics 2007-05-23 C. Pahl , S. Kluth , S. Bethke , P. A. Movilla Fernandez , J. Schieck , the JADE Collaboration

We present a determination of the strong coupling constant from a fit of QCD predictions for six event-shape variables, calculated at next-to-next-to-leading order (NNLO) and matched to resummation in the next-to-leading-logarithmic…

High Energy Physics - Phenomenology · Physics 2009-09-24 G. Dissertori , A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , G. Heinrich , G. Luisoni , H. Stenzel

We present the first determination of the strong coupling constant from a fit of next-to-next-to-leading order QCD predictions to event-shape variables, measured in $e^+e^-$ annihilations at LEP. The data have been collected by the ALEPH…

High Energy Physics - Phenomenology · Physics 2008-12-30 G. Dissertori , A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , G. Heinrich , H. Stenzel

We employ data taken by the JADE and OPAL experiments for an integrated QCD study in hadronic e+e- annihilations at c.m.s. energies ranging from 35 GeV through 189 GeV. The study is based on jet-multiplicity related observables. The…

High Energy Physics - Experiment · Physics 2008-11-26 The Jade , the OPAL collaborations , P. Pfeifenschneider

Data from e+e- annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 GeV and 44 GeV are used to study the four-jet event production rate as a function of the Durham jet algorithm's resolution…

High Energy Physics - Experiment · Physics 2012-05-21 J. Schieck , S. Bethke , O. Biebel , S. Kluth , P. A. Movilla Fernandez , C. Pahl , the JADE Collaboration

Data from \epem annihilation into hadrons, collected by the \Jade experiment at centre-of-mass energies between 14 GeV and 44 GeV, are used to study moments of event shape distributions. Models with hadronisation parameters tuned to the LEP…

High Energy Physics - Experiment · Physics 2019-08-13 Christoph Pahl , Siegfried Bethke , Stefan Kluth , Jochen Schieck

We describe a measurement of the strong coupling alpha_S(m_Z) from the 3-jet rate in hadronic final states of e+e- annihilation recorded with the JADE detector at centre-of-mass energies of 14 to 44 GeV. The jets are reconstructed with the…

High Energy Physics - Experiment · Physics 2012-06-04 Stefan Kluth

Data from e+e- annihilation into hadrons collected by the JADE, the L3 and the OPAL experiment at centre-of-mass energies between 14 GeV and 209 GeV are used to determine the strong coupling alpha_S. Observables in leading order sensitive…

High Energy Physics - Experiment · Physics 2017-08-23 J. Schieck

Data from e+e- annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 and 44 GeV were used to study the 4-jet rate using the Durham algorithm as well as the first five moments of event shape…

High Energy Physics - Experiment · Physics 2017-08-23 Stefan Kluth

Data from e+e- annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 and 44 GeV were used to study the 4-jet rate using the Durham algorithm as well as the first five moments of event shape…

High Energy Physics - Experiment · Physics 2007-05-23 S. Kluth

A study of the energy dependence of event shape observables is presented. The strong coupling constant \alpha_s has been determined from the mean values of six event shape observables. Power corrections, employed for the measurement of…

High Energy Physics - Experiment · Physics 2009-10-30 O. Biebel

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…

High Energy Physics - Experiment · Physics 2007-05-23 J. Schieck , S. Kluth , S. Bethke , P. A. Movilla Fernandez , C. Pahl , the JADE Collaboration

Data recorded by the JADE experiment at the PETRA e^+e^- collider were used to measure distributions of new event shape observables. The distributions were compared with resummed QCD calulations (O(alpha_s^2)+NLLA), and the strong coupling…

High Energy Physics - Experiment · Physics 2009-10-30 P. A. Movilla Fernandez

Results are presented from a study of the structure of high energy hadronic events recorded by the L3 detector at sqrt(s)>192 GeV. The distributions of several event shape variables are compared to resummed O(alphaS^2) QCD calculations. We…

High Energy Physics - Experiment · Physics 2012-08-27 L3 Collaboration

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 moments of event shape distributions and the four-jet rate as a function of the Durham…

High Energy Physics - Experiment · Physics 2011-08-11 Jochen Schieck

The strong coupling constant alpha_S is determined using recently re-analysed e+e- annihilation data collected by the JADE experiment at sqrt{s}= 14 to 44 GeV. The measurements are based on O(alpha_S**2)+NLLA predictions for various event…

High Energy Physics - Experiment · Physics 2007-05-23 P. A. Movilla Fernandez

Data recorded by the JADE experiment at the PETRA e^+e^- collider were used to measure the event shape observables thrust, heavy jet mass, wide and total jet broadening and the differential 2-jet rate in the Durham scheme. For the latter…

High Energy Physics - Experiment · Physics 2014-11-17 P. A. Movilla Fernández , O. Biebel , S. Bethke , S. Kluth , P. Pfeifenschneider , the JADE Collaboration

A study of perturbative QCD calculations combined with power corrections to model hadronisation effects is presented. The QCD predictions are fitted to differential distributions and mean values of event shape observables measured in e+e-…

High Energy Physics - Experiment · Physics 2009-01-07 P. A. Movilla Fernandez , S. Bethke , O. Biebel , S. Kluth
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