$γ^*γ^*$ total cross-section in the dipole picture of BFKL dynamics

$γ^{*}NΔ$ Form Factors from a Relativistic Dynamical Model of Pion Electroproduction

$γ^{*}ρ^0\toπ^0$ Transition Form Factor in Extended AdS/QCD Models

$γγ$ cross-sections and $γγ$ colliders

$γγ$ Event Generators

$γγ$ physics with the KLOE experiment

$γγ$ Processes at High Energy pp Colliders

$γγ$ Production of Non--Strongly Interacting SUSY Particles at Hadron Colliders

$γγ\to t\bar{c}+c\bar{t}$ in a supersymmetric theory with an explicit R-parity violation

$γγ\to π^0 π^0$ and $η\to π^0 γγ$ at low energy within the Extended Nambu Jona-Lasinio Model

$γγ\to π^0 π^0$ as a test for the existence of a light $σ$ meson

$γγ\to πππ$ to One Loop in Chiral Perturbation Theory

$γγ\toπ^+π^-$ in the Modified Perturbative Approach

$γγ\toπ^0π^0$ and $η\toπ^0γγ$ at $O(p^6)$ in the NJL model

$Δ$ contribution in $e^+ + e^- \to p + \bar{p}$ at small $s$

$δ$ meson effects on neutron stars in the modified quark-meson coupling model

$Δ$ resonance contribution to two-photon exchange in electron-proton scattering

$Δ$(1232) electroproduction amplitudes in chiral soliton models of the nucleon

$Δ$, $K^{*}$ and $ρ$ Resonance Production and Their Probing of Freeze-out Dynamics at RHIC

$δ$-biased Josephson tunnel junctions