Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-04-09
Int.J.Mod.Phys.A26:863-871,2011
Physics
High Energy Physics
High Energy Physics - Theory
4 pages
Scientific paper
10.1142/S0217751X11051500
We study the static quantum potential for a gauge theory which includes the mixing between the familiar photon $U(1)_{QED}$ and a second massive gauge field living in the so-called hidden-sector $U(1)_h$. Our discussion is carried out using the gauge-invariant but path-dependent variables formalism, which is alternative to the Wilson loop approach. Our results show that the static potential is a Yukawa correction to the usual static Coulomb potential. Interestingly, when this calculation is done inside a superconducting box, the Coulombic piece disappears leading to a screening phase.
Gaete Patricio
Schmidt Ivan
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