Measurements of energy correlations in e + e − →hadrons
作者: W. BartelL. BeckerC. BowderyD. CordsR. FelstD. HaidtH. JungeG. KniesH. KrehbielP. LaurikainenR. MeinkeK. MeissnerB. NaroskaJ. OlssonE. PietarinenD. SchmidtP. SteffenP. WarmingM. ZacharaG. DietrichE. ElsenG. HeinzelmannH. KadoM. KuhlenT. MashimoK. MeierA. PetersenU. SchneeklothG. WeberK. AmbrusS. BethkeA. DieckmannJ. HeintzeK. H. HellenbrandR. D. HeuerS. KomaniyaJ. KroghP. LennertH. MatsumuraH. RiesebergJ. SpitzerA. WagnerA.
作者单位: 1Deutsches Elektronen-Synchrotron DESY
2II. Institut für Experimentalphysik der Universität
3Physikalisches Institut der Universität
5University of Maryland
6Rutherford Appleton Laboratory
7Lab. of Int. Coll. on Elementary Particle Physics and Department of Physics, University of Tokyo
9Universität-Gesamthochschule Wuppertal
10University Helsinki
刊名: Zeitschrift für Physik C Particles and Fields, 1984, Vol.25 (3), pp.231-239
来源数据库: Springer Nature Journal
DOI: 10.1007/BF01547922
英文摘要: Abstract(#br)Energy-energy-correlations (EEC) have been measured with the JADE detector at c.m. energies of 14 GeV, 22 GeV and in the region 29 GeV< E cm <36 GeV. Corrected results are presented of EEC and their asymmetry, which can be directly compared to theoretical predictions. At 〈 E cm 〉=34 GeV a comparison with second order QCD predictions yields good agreement for the string model fragmentation resulting in a value of the strong coupling constant α s =0.165±0.01 (stat.). The independent fragmentation models, which yield values of α s between 0.10 and 0.15 depending on the treatment of energy and momentum conservation and of the gluon splitting, do not provide a satisfactory description of the data over the full angular range.
全文获取路径: Springer Nature  (合作)

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