Precision Calculation of the Next-to-Leading Order Energy-Energy Correlation Function
نویسندگان
چکیده
منابع مشابه
Precision calculation of the next-to-leading order energy-energy correlation function.
The O(αs ) contribution to the Energy-Energy Correlation function (EEC) [1, 2, 3, 4] of e e− → hadrons is calculated to high precision and the results are shown to be larger than previously reported [9, 10, 11, 12, 13]. The consistency with the leading logarithm approximation and the accurate cancellation of infrared singularities exhibited by the new calculation suggest that it is reliable. We...
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Lance J. Dixon, Ming-xing Luo, Vladyslav Shtabovenko, Tong-Zhi Yang, and Hua Xing Zhu SLAC National Accelerator Laboratory, Stanford University, Stanford, CA 94039, USA Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou, 310027, China The energy-energy correlation (EEC) between two detectors in e+e− annihilation was computed analytically at leading order ...
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The energy-energy correlation (EEC) between two detectors in e^{+}e^{-} annihilation was computed analytically at leading order in QCD almost 40 years ago, and numerically at next-to-leading order (NLO) starting in the 1980s. We present the first analytical result for the EEC at NLO, which is remarkably simple, and facilitates analytical study of the perturbative structure of the EEC. We provid...
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15 صفحه اولA New Calculation of the NLO Energy-Energy Correlation Function
We present a new calculation of the O(rx;) coefficient of the energy-energy correlation function (EEC) using two different schemes to cancel infrared and collinear poles. The numerical evaluation uses the phase space slicing and the hybrid subtraction method. Both schemes converge with decreasing slicing cut. The results are independent of the scheme for small cuts. For the pure phase space sli...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1995
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.74.4392