Jet properties from di-hadron correlations in p+p collisions at s**(1/2) = 200-GeV

Abstract

An analysis of high pT hadron spectra associated with high pT ${\pi }^0$ particles in p+p collisions at s**(1/2) = 200-GeV is presented. The shape of the azimuthal angular correlation is used to determine the value of partonic intrinsic momentum $\sqrt{⟨k_T^2⟩}=2.68\pm 0.07(\mathrm{stat})\pm 0.34(\mathrm{sys})$ GeV/c. The effect of kT-smearing of inclusive ${\pi }^0$ cross section is discussed.

arXiv commentTo appear in the proceedings of 2nd International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions (Hard Probes 2006), Asilomar, Pacific Grove, California, 9-16 Jun 2006

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