Yang-Mills glueballs as closed bosonic strings

Sergei Dubovsky, Guzmán Hernández-Chifflet

    Research output: Contribution to journalArticle

    Abstract

    We put forward the Axionic String Ansatz (ASA), which provides a unified description for the worldsheet dynamics of confining strings in pure Yang-Mills theory both in D = 3 and D = 4 space-time dimensions. The ASA is motivated by the excitation spectrum of long confining strings, as measured on a lattice, and by recently constructed integrable axionic non-critical string models. According to the ASA, pure gluodynamics in 3D is described by a non-critical bosonic string theory without any extra local worldsheet degrees of freedom. We argue that this assumption fixes the set of quantum numbers (spins, P-and C-parities) of almost all glueball states. We confront the resulting predictions with the properties of approximately 12 + 22 + 32 + 52 = 39 lightest glueball states measured on a lattice and find a good agreement. On the other hand, the spectrum of low lying glueballs in 4D gluodynamics suggests the presence of a massive pseudoscalar mode on the string worldsheet, in agreement with the ASA and lattice data for long strings.

    Original languageEnglish (US)
    Article number22
    JournalJournal of High Energy Physics
    Volume2017
    Issue number2
    DOIs
    StatePublished - Feb 1 2017

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    strings
    confining
    Yang-Mills theory
    string theory
    fixing
    quantum numbers
    parity
    degrees of freedom
    predictions
    excitation

    Keywords

    • 1/N Expansion
    • Bosonic Strings
    • Confinement
    • Lattice QCD

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Yang-Mills glueballs as closed bosonic strings. / Dubovsky, Sergei; Hernández-Chifflet, Guzmán.

    In: Journal of High Energy Physics, Vol. 2017, No. 2, 22, 01.02.2017.

    Research output: Contribution to journalArticle

    Dubovsky, Sergei ; Hernández-Chifflet, Guzmán. / Yang-Mills glueballs as closed bosonic strings. In: Journal of High Energy Physics. 2017 ; Vol. 2017, No. 2.
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