PT Journal
AU Bruschini, R
   Gonzalez, P
TI chi(c1)(2p): an overshadowed charmoniumlike resonance
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2023
BP 216
EP 23pp
VL 02
IS 2
DI 10.1007/JHEP02(2023)216
LA English
DE Properties of Hadrons; Quarkonium
AB A thorough study of the J(PC )= 1(++) elastic D0 & macr;D*(0) and D+D*(-) scattering, where the form of the meson-meson interaction is inferred from lattice QCD calculations of string breaking, is carried out for center-of-mass energies up to 4 GeV. We show that the presence of chi c1(3872), which can be naturally assigned to either a bound or virtual charmoniumlike state close below the D0 & macr;D*0 threshold, can overshadow a quasiconventional charmoniumlike resonance lying above threshold. This makes difficult the experimental detection of this resonance through the D0 & macr;D*(0) and D+D*(-) channels, despite being its expected main decay modes. We analyze alternative strong and electromagnetic decay modes. Comparison with existing data shows that this resonance may have already been observed through its decay to omega J/psi.
ER