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Inclusive charged hadron production in two-photon collisions at LEP

CollaborationWith : Achard, Pablo / Bourquin, Maurice / Braccini, Saverio / Chamizo Llatas, Maria / Deglon, Patrick / Delmeire, Evelyne / Echenard, Bertrand / Extermann, Pierre / Field, John / Kienzle, Maria-Novella / Malgeri, Luca / Natale, Sonia / Pohl, Martin / Straessner, Arno
Published in Physics Letters. B. 2003, vol. 554, no. 3-4, p. 105-114
Abstract Inclusive charged hadron production, e+e−→e+e−h±X, is studied using 414 pb−1 of data collected at LEP with the L3 detector at centre-of-mass energies between 189 and 202 GeV. Single particle inclusive differential cross sections are measured as a function of the particle transverse momentum, pt, and pseudo-rapidity, η. For pt⩽1.5 GeV, the data are well described by an exponential, typical of soft hadronic processes. For higher pt, the onset of perturbative QCD processes is observed. The π± production cross section for pt>5 GeV is much higher than the NLO QCD predictions.
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L3 COLLABORATION. Inclusive charged hadron production in two-photon collisions at LEP. In: Physics Letters. B, 2003, vol. 554, n° 3-4, p. 105-114. https://archive-ouverte.unige.ch/unige:43059

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Deposited on : 2014-12-11

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