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arXiv · hep-ph/9907430

Multiplicity of (Mini-)Jets at Small x

Carlo Ewerz·Bryan R. Webber
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Abstract

We derive closed expressions for the mean and variance of the (mini-)jet multiplicity distribution in hard scattering processes at low x. Here (mini-)jets are defined as those due to initial-state radiation of gluons with transverse momenta greater than some resolution scale m_R, where Lambda^2 << m_R^2 << Q^2, Lambda being the intrinsic QCD scale and Q the momentum transfer scale of the hard scattering. Our results are valid to leading order in log(1/x) but include all sub-leading logarithms of Q^2/m_R^2. As an illustration, we predict the mini-jet multiplicity in Higgs boson production at the Large Hadron Collider.

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Carlo Ewerz, Bryan R. Webber. 1999-07-20. Multiplicity of (Mini-)Jets at Small x. https://doi.org/10.1088/1126-6708%2F1999%2F08%2F019

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