Search results for "12.39.-x"

showing 1 items of 1 documents

Nature of the light scalar mesons

2005

Despite the apparent simplicity of meson spectroscopy, light scalar mesons cannot be accommodated in the usual $q\bar q$ structure. We study the description of the scalar mesons below 2 GeV in terms of the mixing of a chiral nonet of tetraquarks with conventional $q\bar q$ states. A strong diquark-antidiquark component is found for several states. The consideration of a glueball as dictated by quenched lattice QCD drives a coherent picture of the isoscalar mesons.

Nuclear and High Energy PhysicsParticle physicsMesonNuclear Theory[PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th]IsoscalarHigh Energy Physics::Latticemeson massquark confinementLattice field theoryNuclear TheoryFOS: Physical sciencessparticles01 natural sciencesHigh Energy Physics - ExperimentNuclear Theory (nucl-th)High Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)0103 physical sciencesquantum chromodynamics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]010306 general physicsNuclear ExperimentQuantum chromodynamicsPhysics010308 nuclear & particles physicsGlueballHigh Energy Physics::PhenomenologyScalar (physics)lattice field theory12.39.-x 12.38.-tFísicaLattice QCDDiquarkHigh Energy Physics - Phenomenology[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experimentchiral symmetries
researchProduct