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High energy QCD and hard diffraction at HERA versus Tevatron

2000/05/13 by Ch. Royon, C. R. Royon, Royon, Ch.
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Superconducting Materials and Applications #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0005130

10 pages, review talk given at the Workshop on Light-Cone QCD and Nonperturbative Hadron Physics, December 13-22 1999, Adelaide, Australia

arxiv created 2000/05/13 · openalex publication_date 2000/05/13 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present and discuss two different topics where Tevatron and HERA data can be compared directly. A method allowing for a direct comparison of data with theoretical predictions is proposed for forward jet production at HERA. An application to the determination of the effective Pomeron intercept in the BFKL-LO parametrization from dσ/dx data at HERA leads to a good fit with a significantly high effective intercept, αP= 1.43 ± 0.025 (stat.) ± 0.025 (syst.). It is less than the value of the pomeron intercept using dijets with large rapidity intervals obtained at Tevatron. In a second part of this report, we make comparison between diffractive results at HERA and at Tevatron. We first give the parton distributions in the pomeron extracted from HERA data, and compare with hard single diffraction at Tevatron and diffractive dijets with a leading antiproton data.

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