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The European Physical Journal C

, Volume 58, Issue 2, pp 261–269 | Cite as

The η′ meson from lattice QCD

  • K. Jansen
  • C. MichaelEmail author
  • C. Urbach
  • European Twisted Mass Collaboration
Regular Article - Theoretical Physics

Abstract

We study the flavour-singlet pseudoscalar mesons from first principles using lattice QCD. With N f=2 flavours of light quarks, this is the so-called η 2 meson and we discuss the phenomenological status of this meson. Using maximally twisted-mass lattice QCD, we extract the mass of the η 2 meson at two values of the lattice spacing for lighter quarks than previously discussed in the literature. We are able to estimate the mass value in the limit of light quarks with their physical masses.

Keywords

Lattice Spacing Light Quark Pseudoscalar Meson Chiral Limit Connected Correlator 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2008

Authors and Affiliations

  • K. Jansen
    • 1
  • C. Michael
    • 2
    Email author
  • C. Urbach
    • 3
  • European Twisted Mass Collaboration
  1. 1.DESY, ZeuthenZeuthenGermany
  2. 2.Theoretical Physics Division, Dept. of Mathematical SciencesUniversity of LiverpoolLiverpoolUK
  3. 3.Institut für Elementarteilchenphysik, Fachbereich PhysikHumboldt Universität zu BerlinBerlinGermany

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