Inclusive hadronic distributions in jets and sub-jets with jet axis from color current

Abstract

The hadronic $\kt$-spectrum and the gluon to quark average multiplicity ratio $r=N_g/N_q$ inside a high energy sub-jet are determined from a precise definition of the jet axis, including corrections of relative magnitude $\mathcal{O}(\sqrt{{\alpha }_s})$ with respect to the Modified Leading Logarithmic Approximation (MLLA), in the limiting spectrum approximation (assuming an infrared cut-off $Q_0 =\lqcd$). The results for the $\kt$-spectrum in the limiting spectrum approximation are found to be, after normalization, in impressive agreement with measurements by the CDF collaboration and the ratio has not been measured yet.

Invited lecture at Ringberg Workshop: New Trends in HERA Physics 2008, October 5-10, 2008, Ringberg Castle, Tegernsee-Bavaria, Germany

References in corpus (5)

• Two particle correlations inside one jet at "Modified Leading Logarithmic Approximation" of Quantum Chromodynamics; I: exact solution of the evolution equations at small x
• Hadronic single inclusive kt distributions inside one jet beyond MLLA
• Inclusive Hadronic Distributions Inside One Jet at High Energy Colliders at "Modified Leading Logarithmic Approximation" of Quantum Chromodynamics
• Next-to-MLLA corrections to single inclusive kt-distributions and 2-particle correlations in a jet
• Particle Multiplicity in Jets and Sub-jets with Jet Axis from Color Current