Higher Order Moments of Momentum Spectra
Higher Order Moments of Momentum Spectra
Higher Order Moments of Momentum Spectra
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<strong>Moments</strong> <strong>of</strong> ξ dist bnMLLA theory assumesenergy spectra - exptmeasure momentaKhoze, Lupia & Ochssuggested (Phys LettB386 1996 451) the cut<strong>of</strong>fin evolution can berelated to an effectivemass, m eff , <strong>of</strong> the hadrons1 1 1( ξ Q,Λ) ∝ exp k − sδ− ( 2 + k)MLLA predictions forthe Q evolution <strong>of</strong>moments (Dokshitzer etal, Int J Mod Phys A71992, 1875.)Fong & Webbersuggested region aroundpeak can be described bya distorted GaussianExtract moments fromfits to MLLA theoreticalspectra and data in aconsistent manner(PLB 479 2000 173 & PLB 497 2001 55)[ ]2 1 3 1 4δ + sδkD , + δwhere8δ =2( ξ −ξ)σ4624
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