We investigate vector-mesons production off the nucleon within a hybrid Regge approach based on effective Lagrangians. We simultaneously examine total and differential cross sections and spin-density matrix elements. Such measurements could be carried out in future high-intensity poin- and kaon-beam experiments at facilities such as J-PARC. The results of this study may help to shed light on...
We investigate the dynamical generation of isoscalar charmonium-like
states with a coupled-channel approach. Our focus is placed on states
with quantum numbers $J^{PC}=0^{++}$, $1^{++}$, $2^{++}$, and $3^{--}$
in the mass range of 3.6 to 4.3 GeV. We describe these systems through
effective Lagrangians constrained by heavy-quark spin-flavor and
chiral symmetries, employing an off-shell...
We present Proposal P111 for a new experiment that will investigate $J/\psi$ production in $\pi^-p$ reactions near threshold at the $\pi$20 beamline of J-PARC. Studying $J/\psi$ production in $\pi^−p$ collisions will offer valuable insights into the mechanism of $c\bar{c}$ pair creation in pion-induced reactions, with particular focus on hidden-charm pentaquark states. This measurement seeks...
