Published April 2008 | Version v1
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The η' meson from lattice QCD

Creators

  • 1. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany)
  • 2. Liverpool Univ. (United Kingdom). Theoretical Physics Div.
  • 3. Humboldt Univ. Berlin (Germany). Inst. fuer Elementarteilchenphysik

Description

We study the flavour singlet pseudoscalar mesons from first principles using lattice QCD. With Nf=2 flavours of light quark, this is the so-called η2 meson and we discuss the phenomenological status of this. Using maximally twisted-mass lattice QCD, we extract the mass of the η2 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. (orig.)

Availability note (English)

Available from INIS in electronic form

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Additional details

Publishing Information

Imprint Pagination
17 p.
ISSN
0418-9833
Report number
DESY--08-041

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
39079628
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
CORRELATION FUNCTIONS; EFFECTIVE MASS; ETA PRIME-958 MESONS; FLAVOR MODEL; LATTICE FIELD THEORY; QUANTUM CHROMODYNAMICS; QUARKS; REST MASS
Descriptors DEC
BOSONS; COMPOSITE MODELS; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; FUNCTIONS; HADRONS; MASS; MATHEMATICAL MODELS; MESONS; PARTICLE MODELS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUARK MODEL

Optional Information

Collaborations
European Twisted Mass Collaboration
Secondary number(s)
LTH--788; HU-EP--08-11; SFB/CPP--08-23