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Parton
About: Parton is a research topic. Over the lifetime, 13484 publications have been published within this topic receiving 368877 citations.
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TL;DR: In this paper, the BPST kernel along with a simple local approximation to the proton and current wave functions was shown to give a remarkably good fit not only at large Q 2 dominated by conformal symmetry but also extends to small Q 2, supplemented by a hard-wall cut-off of the AdS in the IR.
Abstract: The AdS/CFT correspondence in principle gives a new approach to deep inelastic scattering as formulated by Polchinski and Strassler. Subsequently Brower, Polchinski, Strassler and Tan (BPST) computed the strong coupling kernel for the vacuum (or Pomeron) contribution to total cross sections. By identifying deep inelastic scattering with virtual photon total cross section, this allows a self consistent description at small-x where the dominant contribution is the vacuum exchange process. Here we formulate this contribution and compare it with HERA small-x DIS scattering data. We find that the BPST kernel along with a very simple local approximation to the proton and current “wave functions” gives a remarkably good fit not only at large Q
2 dominated by conformal symmetry but also extends to small Q
2, supplemented by a hard-wall cut-off of the AdS in the IR. We suggest that this is a useful phenomenological parametrization with implications for other diffractive processes, such as double diffractive Higgs production.
90 citations
TL;DR: In this article, the authors present an implementation of a parton shower algorithm for hadron colliders and electron-positron (POS) colliders based on the dipole factorization formulas.
Abstract: We present an implementation of a parton shower algorithm for hadron colliders and electron-positron colliders based on the dipole factorization formulas. The algorithm treats initial-state partons on equal footing with final-state partons. We implemented the algorithm for massless and massive partons.
89 citations
TL;DR: In this article, it was shown that the high energy limit of quark-quark, or gluon-gluon, elastic scattering is calculable in terms of the BFKL pomeron when − t / Λ 2 ⪢ 1.
89 citations
TL;DR: In this paper, the authors compute the production cross section of a top-antitop pair in association with a jet at hadron colliders at next-to-leading order accuracy matched with parton shower algorithms to make predictions at the hadron level.
89 citations
TL;DR: In this article, the NLO vertex of the Mueller Navelet jet vertex is calculated for the production of Mueller Nvelet jets at hadron hadron colliders and of forward jets in deep inelastic electron proton scattering.
Abstract: In this paper we complete our calculation of the NLO jet vertex which is part of the cross section formulae for the production of Mueller Navelet jets at hadron hadron colliders and of forward jets in deep inelastic electron proton scattering.
89 citations