TY - JOUR
T1 - How does a pseudoscalar glueball come unglued?
AU - Rosenzweig, C.
AU - Salomone, A.
AU - Schechter, J.
N1 - Funding Information:
We would like to thank G. Veneziano for helpful comments on the manuscript. One of us (J.S.) is grateful for the continuing warm hospitality at Goteborg being extended by Jan Nilsson and the other members of the theory group. He would also like to thank Per Salomonson and G. Veneziano for arranging an enjoyable short visit to CERN. This work was partially supported by the US Department of Energy.
PY - 1982/10/4
Y1 - 1982/10/4
N2 - The η′(960) and ι(1440) are treated as glueballs in the framework of effective chiral lagrangians which satisfy the axial anomaly equation. The narrow width of the η′ can be qualitatively understood. An associated large breaking of flavor SU(3) is shown to be ameliorated as the model is made more realistic by lowering scalar meson masses from infinity. The π δ decay of the ι(1440) can be reasonably well estimated without the need of introducing any new parameters.
AB - The η′(960) and ι(1440) are treated as glueballs in the framework of effective chiral lagrangians which satisfy the axial anomaly equation. The narrow width of the η′ can be qualitatively understood. An associated large breaking of flavor SU(3) is shown to be ameliorated as the model is made more realistic by lowering scalar meson masses from infinity. The π δ decay of the ι(1440) can be reasonably well estimated without the need of introducing any new parameters.
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U2 - 10.1016/0550-3213(82)90485-0
DO - 10.1016/0550-3213(82)90485-0
M3 - Article
AN - SCOPUS:49049143474
SN - 0550-3213
VL - 206
SP - 12
EP - 22
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 1
ER -