Multiparton interactions with an x-dependent proton size

Research output: Contribution to journalArticle

Abstract

Theoretical arguments, supported by other indirect evidence, suggest that the wave function of high-x partons should be narrower than that of low-x ones. In this article, we present a modification to the variable impact parameter framework of PYTHIA 8 to model this effect. In particular, a Gaussian hadronic matter profile is introduced, with a width dependent on the x value of the constituent being probed. Results are compared against the default single-and double-Gaussian profiles, as well as an intermediate overlap function.

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Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics

Keywords

  • QCD Phenomenology, Phenomenological Models
Original languageEnglish
JournalJournal of High Energy Physics
Issue number5
Publication statusPublished - 2011
Publication categoryResearch
Peer-reviewedYes