The phenomenology of the exotic hybrid nonet with π1(1600) and η1(1855)

被引：20
作者：
Shastry, Vanamali [1 ]
Fischer, Christian S. [2 ,3 ]
Giacosa, Francesco [1 ,4 ]
机构：
[1] Jan Kochanowski Univ, Inst Phys, Ul Uniwersytecka 7, PL-25406 Kielce, Poland
[2] Justus Liebig Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany
[3] GSI Helmholtzzentrum Schwenonenforsch, Helmholtz Forsch Akad Hessen FAIR HFHF, Campus Giessen, D-35392 Giessen, Germany
[4] Goethe Univ Frankfurt, Inst Theoret Phys, Max von Laue Str 1, D-60438 Frankfurt, Germany
来源：
PHYSICS LETTERS B | 2022年 / 834卷
关键词：
Hybrid mesons; Chiral Lagrangian; Meson decays; MESON PRODUCTION; REST; ANNIHILATION; CONFIRMATION; STATE;
D O I：
10.1016/j.physletb.2022.137478
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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 pi 1(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 pi 1(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 eta 1(1855).(c) 2022 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.
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