Hadron structure in {tau}{yields}KK{pi}{nu}{sub {tau}}decays

Journal Article · Mon Feb 01 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.034031· OSTI ID:21409186

Gomez Dumm, D ^[1]; Roig, P ^[2]; Pich, A; Portoles, J ^[3]

---

1. IFLP, CONICET - Dpto. de Fisica, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata (Argentina)
2. Laboratoire de Physique Theorique (UMR 8627), Universite de Paris-Sud XI, Batiment 210, 91405 Orsay cedex (France)
3. Departament de Fisica Teorica, IFIC, CSIC - Universitat de Valencia, Edifici d'Instituts de Paterna, Apt. Correus 22085, E-46071 Valencia (Spain)

We analyze the hadronization structure of both vector and axial-vector currents leading to {tau}{yields}KK{pi}{nu}{sub {tau}}decays. At leading order in the 1/N{sub C} expansion, and considering only the contribution of the lightest resonances, we work out, within the framework of the resonance chiral Lagrangian, the structure of the local vertices involved in those processes. The couplings in the resonance theory are constrained by imposing the asymptotic behavior of vector and axial-vector spectral functions ruled by QCD. In this way we predict the hadron spectra and conclude that, contrary to previous assertions, the vector contribution dominates by far over the axial-vector one in all KK{pi} charge channels.

• OSTI ID: 21409186
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 3; Other Information: DOI: 10.1103/PhysRevD.81.034031; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMPTOTIC SOLUTIONS
AXIAL-VECTOR CURRENTS
CHIRALITY
COUPLING
EXPANSION
HADRONS
KAONS
LAGRANGIAN FUNCTION
PARTICLE DECAY
PIONS
QUANTUM CHROMODYNAMICS
RESONANCE
SPECTRA
SPECTRAL FUNCTIONS
TAU NEUTRINOS
TAU PARTICLES
VECTOR CURRENTS
ALGEBRAIC CURRENTS
BOSONS
CURRENTS
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
HEAVY LEPTONS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL SOLUTIONS
MESONS
NEUTRINOS
PARTICLE PROPERTIES
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
STRANGE MESONS
STRANGE PARTICLES