38 citations · 210 across the 27 of their papers we have counts for
27 papers
Relativistic fine structure of the (He4,mu) ion 2p-levels
Riccardo Giachetti, Emanuele Sorace
Motivated by the recent experimental measures of the 2p-states fine splitting of the muonic He4 ion [1], we think it may have some interest to present an independent calculation in…
Relativistic levels of mesic atoms
Riccardo Giachetti, Emanuele Sorace
We revisit the derivation of the covariant two-body scalar-fermion equation with a Coulomb interaction, presented in a previous paper. We show that it can be given the formal aspec…
Two body relativistic wave equations
Riccardo Giachetti, Emanuele Sorace
The relativistic quantum mechanics of two interacting particles is considered. We first present a covariant formulation of kinematics and of reduced phase space, giving a short out…
Bender-Wu singularities
Riccardo Giachetti, Vincenzo Grecchi
We consider a family of quantum Hamiltonians , where is an imaginary double well potential. We pr…
Relativistic two-body calculation of -mesons radiative decays
A. Barducci, R. Giachetti, E. Sorace
This paper is a prosecution of a previous work where we presented a unified two-fermion covariant scheme which produced very precise results for the masses of light and heavy meson…
Level Crossings in a PT-symmetric Double Well
Riccardo Giachetti, Vincenzo Grecchi
We consider a \textit{PT}-symmetric cubic oscillator with an imaginary double well. We prove the existence of an infinite number of level crossings with a definite selection rule.…