Generalized event shape and energy flow studies in e+e− annihilation at \sqrt {s} = 91.2{ - }208.0 GeV
Journal of High Energy Physics(2011)
摘要
We present results from a study of hadronic event structure in high energy e+e− interactions using the L3 detector at LEP. A new class of event shape distributions are measured at and above the Z boson pole for light quark (u, d, s, c) flavours. Energy flow correlations are studied for all hadronic events. Next-to-leading-log QCD calculations and QCD models with improved leading-log approximations are compared to data and good agreement is found at the Z-pole whereas some discrepancies are observed at higher centre-of-mass energies.
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关键词
e+-e-Experiments
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