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  • 标题:Precise determination of the strong coupling from energy-energy correlation
  • 本地全文:下载
  • 作者:Z.Tulipant ; A.Kardos ; S.Kluth
  • 期刊名称:PoS - Proceedings of Science
  • 印刷版ISSN:1824-8039
  • 出版年度:2018
  • 卷号:303
  • DOI:10.22323/1.303.0030
  • 语种:English
  • 出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
  • 摘要:In this contribution we present a determination of the strong coupling from a fit of QCD predictions for energy-energy correlation measured in electron-positron collisions at various center-of-mass energies. Experimental data are compared to precise theoretical calculations incorporating NNLO QCD predictions combined with NNLL resummation in the back-to-back region. Hadronization corrections are assessed using modern shower Monte Carlo programs matched to NLO fixed-order computations. The final result obtained from a global fit is $\alpha_S(M_Z)=0.11750\pm0.0287(comb.)$.
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