6 papers
Diquark size effects in the quark-diquark approximation for baryons
Clara Tourbez, Cyrille Chevalier, Claude Semay
Baryons can be described within several theoretical frameworks. Among them, the constituent approach is widely used. In this context, we aim to evaluate the accuracy of a particula…
Light hybrid baryons in the constituent model of QCD
Joachim Viseur, Claude Semay, Cyrille Chevalier
Hybrid baryons, in which gluonic degrees of freedom play an explicit dynamical role, provide a key testing ground for nonperturbative quantum chromodynamics. In this work, we inves…
Perturbative results for fractional quantum mechanics
Claude Semay, Clara Tourbez, Loïc Keszeli
The fractional Schrödinger equation is studied with a kinetic energy that slightly deviates from the usual nonrelativistic form. The harmonic oscillator and the Kepler problem are…
A Plunge into the Chasm: Surviving Tidal Effects in Kerr Spacetime
Guillaume Lhost, Ornella Ruta, Claude Semay
We investigate the fate of an observer falling towards a Kerr black hole. The tidal forces are computed for arbitrary trajectories of an observer, and we specify them along the pol…
Casimir scaling in glueballs in SU() and Sp() gauge theories: hints from constituent approaches
F. Buisseret, C. Chevalier, V. Mathieu +1
We show that the lattice glueball masses versus in SU() and Sp() Yang-Mills theories scale as , with t…
Upper bounds for critical coupling constants for binding some quantum many-body systems
Clara Tourbez, Claude Semay, Cyrille Chevalier
When particles interact via two-body short-range central potential wells, binding can occur for some critical values of the coupling constants. Using the envelope theory, upper bou…