Transverse momentum spectra of charged hadrons in jets at the Tevatron

Details Transverse momentum spectra of charged hadrons in jets at the Tevatron Transverse momentum spectra of charged hadrons in jets at the Tevatron

2008-08-12

arxiv.org/abs/0808.1689v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contributed to Hard Probes 2008, Illa da Toxa (Galicia, Spain). 6 pages and 6 figures submitted to EPJC

Scientific paper

The hadronic $\kt$-spectrum inside a high energy jet is determined including corrections of relative magnitude $\cO{\sqrt{\alpha_s}}$ with respect to the Modified Leading Logarithmic Approximation (MLLA), in the limiting spectrum approximation (assuming an infrared cut-off $Q_0 =\lqcd$) and beyond ($Q_0\ne\lqcd$). The results in the limiting spectrum approximation are found to be, after normalization, in impressive agreement with measurements by the CDF collaboration. A new integral representation for the "hump-backed" plateau is also reported.

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