TY - JOUR
T1 - Hyperon axial charges in two-flavor chiral perturbation theory
AU - Jiang, Fu Jiun
AU - Tiburzi, Brian C.
PY - 2009/10/21
Y1 - 2009/10/21
N2 - We use two-flavor heavy baryon chiral perturbation theory to investigate the isovector axial charges of the spin one-half hyperons. Expressions for these hyperon axial charges are derived at next-to-leading order in the chiral expansion. We utilize phenomenological and lattice QCD inputs to assess the convergence of the two-flavor theory, which appears to be best for cascades.
AB - We use two-flavor heavy baryon chiral perturbation theory to investigate the isovector axial charges of the spin one-half hyperons. Expressions for these hyperon axial charges are derived at next-to-leading order in the chiral expansion. We utilize phenomenological and lattice QCD inputs to assess the convergence of the two-flavor theory, which appears to be best for cascades.
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U2 - 10.1103/PhysRevD.80.077501
DO - 10.1103/PhysRevD.80.077501
M3 - Article
AN - SCOPUS:70450137073
SN - 1550-7998
VL - 80
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 077501
ER -