We have analyzed the singularities of a triangle loop integral in detail and derived a formula
for an easy evaluation of the triangle singularity on the physical boundary. It is applied to the …

We review recent developments concerning the weak decay of Λ hypernuclei. New studies
covering the mesonic decay channel as well as recent models for the non-mesonic one are …

In a well-established many-body framework, successful in modeling a great variety of
nuclear processes, we analyze the role of the spectral functions (SFs) accounting for the …

We study the ππ N system by solving the Faddeev equations, for which the input two-body t-
matrices are obtained by solving the Bethe-Salpeter equation in the coupled-channel …

Neutral-current photon emission reactions with nucleons and nuclei are studied. These
processes are important backgrounds for ν μ→ ν e (ν¯ μ→ ν¯ e) appearance oscillation …

We present a way to evaluate the scattering of unstable particles quantized in a finite volume
with the aim of extracting physical observables for infinite volume from lattice data. We …

We present a calculation of the γ d→ K+ K-np reaction with the aim of seeing whether the
experimental peak observed in the K+ n invariant mass around 1526 MeV, from where …

We present calculations of the NN→ NΔ cross section in nuclear matter within the one-pion
exchange model taking into account pion collectivity, vertex renormalization by the contact …

We perform calculations for the production of ϕ mesons in nuclei at energies just above
threshold and study the A dependence of the cross section. We use results for the ϕ self …

We study the Roper excitation in the (α, α′) reaction. We consider all processes which may
be relevant in the Roper excitation region, namely, Roper excitation in the target, Roper …