TY - JOUR
T1 - Isoscalar meson spectroscopy from lattice QCD
AU - Dudek, Jozef J.
AU - Edwards, Robert G.
AU - Joó, Bálint
AU - Peardon, Michael J.
AU - Richards, David G.
AU - Thomas, Christopher E.
PY - 2011/6/7
Y1 - 2011/6/7
N2 - We extract to high statistical precision an excited spectrum of single-particle isoscalar mesons using lattice QCD, including states of high spin and, for the first time, light exotic JPC isoscalars. The use of a novel quark field construction has enabled us to overcome the long-standing challenge of efficiently including quark-annihilation contributions. Hidden-flavor mixing angles are extracted and while most states are found to be close to ideally flavor mixed, there are examples of large mixing in the pseudoscalar and axial sectors in line with experiment. The exotic JPC isoscalar states appear at a mass scale comparable to the exotic isovector states.
AB - We extract to high statistical precision an excited spectrum of single-particle isoscalar mesons using lattice QCD, including states of high spin and, for the first time, light exotic JPC isoscalars. The use of a novel quark field construction has enabled us to overcome the long-standing challenge of efficiently including quark-annihilation contributions. Hidden-flavor mixing angles are extracted and while most states are found to be close to ideally flavor mixed, there are examples of large mixing in the pseudoscalar and axial sectors in line with experiment. The exotic JPC isoscalar states appear at a mass scale comparable to the exotic isovector states.
UR - http://www.scopus.com/inward/record.url?scp=79960759890&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.83.111502
DO - 10.1103/PhysRevD.83.111502
M3 - Article
AN - SCOPUS:79960759890
SN - 1550-7998
VL - 83
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 11
M1 - 111502
ER -