The lightest hybrid meson supermultiplet in QCD

Journal Article · Sat Oct 01 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.074023· OSTI ID:21607781

Dudek, Jozef J ^[1]

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1. Jefferson Laboratory, 12000 Jefferson Avenue, Newport News, Virginia 23606 (United States) and Department of Physics, Old Dominion University, Norfolk, Virginia 23529 (United States)

We interpret the spectrum of meson states recently obtained in nonperturbative lattice QCD calculations in terms of constituent quark-antiquark bound states and states, called ''hybrids'', in which the qq pair is supplemented by an excitation of the gluonic field. We identify a lightest supermultiplet of hybrid mesons with J{sup PC}=(0,1,2){sup -+},1{sup --} built from a gluonic excitation of chromomagnetic character coupled to qq in an S-wave. The next lightest hybrids are suggested to be quark orbital excitations with the same gluonic excitation, while the next distinct gluonic excitation is significantly heavier. Existing models of gluonic excitations are compared to these findings and possible phenomenological consequences explored.

• OSTI ID: 21607781
• Journal Information: Physical Review. D, Particles Fields, Vol. 84, Issue 7; Other Information: DOI: 10.1103/PhysRevD.84.074023; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUND STATE
COMPUTERIZED SIMULATION
EXCITATION
LATTICE FIELD THEORY
MESONS
QUANTUM CHROMODYNAMICS
QUARK-ANTIQUARK INTERACTIONS
QUARKS
S WAVES
SPECTRA
SUPERMULTIPLETS
BOSONS
CONSTRUCTIVE FIELD THEORY
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
FERMIONS
FIELD THEORIES
HADRONS
INTERACTIONS
MULTIPLETS
PARTIAL WAVES
PARTICLE INTERACTIONS
QUANTUM FIELD THEORY
SIMULATION