C-Parameter and Jet Broadening at PETRA Energies

Biebel, O.; Fernández, P. A. Movilla; Bethke, S.; Collaboration, the JADE

doi:10.1016/S0370-2693(99)00733-9

arXiv 1999-03-09 DOI 10.1016/S0370-2693(99)00733-9 0 مشاهدة

C-Parameter and Jet Broadening at PETRA Energies

Biebel, O. · Fernández, P. A. Movilla · Bethke, S. · Collaboration, the JADE

High Energy Physics - Experiment High Energy Physics - Phenomenology

الأصل · EN

e+e- annihilation data recorded by the JADE detector at PETRA were used to measure the C-parameter for the first time at √s= 35 and 44 GeV. The distributions were compared to a resummed QCD calculation. In addition, we applied extended resummed calculations to the total and wide jet broadening variables, Bₜ and BW. We combined the results on αₛ with those of our previous study of differential 2-jet rate, thrust, and heavy jet mass, obtaining αₛ(35 GeV) = 0.1448 +0.0117 -0.0070 and αₛ(44 GeV) = 0.1392 +0.0105 -0.0074. Moreover power corrections to the mean values of the observables mentioned above were investigated considering the Milan factor and the improved prediction for the jet broadening observables. Our study, which considered e+e- data of five event shape observables between √s= 14 and 183 GeV, yielded αₛ(MZ₀)=0.1177 +0.0035 -0.0034.

الترجمة العربية

لا توجد ترجمة عربية لهذا البحث بعد. كن أوّل من يطلبها: تستغرق ثوانيَ معدودة، وتُحفظ النتيجة لكل قارئ قادم.

اقرأ على arXiv