TY  - JOUR
A1  - Shastry, Vanamali
A1  - Fischer, Christian S.
A1  - Giacosa, Francesco
T1  - The phenomenology of the exotic hybrid nonet with π1(1600) and η1(1855)
T2  - Physics Letters B
N2  - We study the decays of the JPC=1−+ hybrid nonet using a Lagrangian invariant under the flavor symmetry, parity reversal, and charge conjugation. We use the available experimental data, the lattice predictions, and the flavor constraints to evaluate the coupling strengths of the π1(1600) to various two-body mesonic states. Using these coupling constants, we estimate the partial widths of the two-body decays of the hybrid pion, kaon and the isoscalars. We find that the hybrid kaon can be nearly as broad as the π1(1600). Quite remarkably, we find also that the light isoscalar must be significantly narrow while the width of the heavy isoscalar can be matched to the recently observed η1(1855).
KW  - Hybrid mesons
KW  - Chiral Lagrangian
KW  - Meson decays
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/78557
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-785574
SN  - 0370-2693
VL  - 834
IS  - 137478
PB  - Elsevier
CY  - Amsterdam
ER  -