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Generalized event shape and energy flow studies in e+e annihilation at √s=91.2−208.0 GeV

CollaborationWith : Achard, Pablo / Bourquin, Maurice / Braccini, Saverio / Chamizo Llatas, Maria / Deglon, Patrick / Delmeire, Evelyne / Echenard, Bertrand / Extermann, Pierre / Field, John / Kienzle, Maria-Novella / Natale, Sonia / Pohl, Martin / Straessner, Arno
Published in Journal of High Energy Physics. 2011, vol. 10, no. 143, p. 58
Abstract 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.
Keywords E+-e-Experiments
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L3 COLLABORATION. Generalized event shape and energy flow studies in e+e annihilation at √s=91.2−208.0 GeV. In: Journal of High Energy Physics, 2011, vol. 10, n° 143, p. 58. https://archive-ouverte.unige.ch/unige:40203

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Deposited on : 2014-09-12

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