3 papers
hep-th2001
Dressing a Scalar Mass up to Two-Loop Order at Finite Temperature
H. C. de Godoy Caldas
In this paper we use Modified Self-Consistent Resummation (MSCR) in order to obtain the scalar dressed mass by evaluating the self-energy up to two loops in the neutral scalar $λϕ^…
physics.gen-ph2000
The Energy of the Universe, the Scaling-Dependent Coupling Constant and the Pion Mass
H. C. G. Caldas, P. R. Silva
From the hypothesis of a quadratic dependence of the binding energy of the quarks on the length scale and from the idea of a universal running coupling constant, we get the closure…
gr-qc1998
Spreading of wave packets, Uncertainty Relations and the de Broglie Frequency
H. C. G. Caldas, P. R. Silva
The spreading of quantum mechanical wave packets is studied in two cases. Firstly we look at the time behavior of the packet width of a free particle confined in the observable Uni…