$χ$PT Calculations with two-pion Loops for S-wave $π^0$ Production in pp Collision

$χ^{(3)}$ non-Gaussian state generation for light using a trapped ion

$χ_{c J}$ production in $e^+e^-$ annihilation

$χ_{c2} \to ρρ$ and the $rho$ polarization in massless perturbative QCD: how to test the distribution amplitudes

$χ_{c2} \to ρρ$ Decay and the $ρ$ Polarization in Inclusive Processes: A Test of Mass Effects

$χ_{cJ}$ production associated with a $c\bar c$ pair at hadron colliders

$ψ$-Appell polynomials` solutions of an umbral difference nonhomogeneous equation

$ψ$-Poisson, $q$-Cigler, $ψ$-Dobinski, $ψ$-Rota and $ψ$-coherent states

$ψ'$ Polarization as a test of colour octet quarkonium production

$ψ'$ Polarization due to Color-Octet Quarkonia Production

$ψ'$ productions as a test of color-octet mechanism

$Ψ'/Ψ$ ratio in Nucleus-Nucleus Collisions : a Measure for the Chiral Symmetry Restoration Temperature ?

$ψ(3770)$ and $B$ meson exclusive decay $B \to ψ(3770) K$ in QCD factorization

$Ψ=0$ at a sharp semiconductor/insulator interface. Is this correct?

$ω$ and $ρ$ Photoproduction with an Effective Quark Model Lagrangian

$ω$-$φ$ mixing and weak annihilation in $D_s$ decays

$ω$-Lie algebras

$ω$-Meson Photoproduction on Nucleons In the Near Threshold Region

$ω$-recurrence in cocycles

$ω- πγ^*$ transition form factor in proton-proton collisions