Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-10-12
Phys.Rev.D55:3742-3747,1997
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 4 Postscript figures, REVTeX
Scientific paper
10.1103/PhysRevD.55.3742
We examine the effect of one loop quantum corrections on the formation of nontopological solitons in a strongly coupled scalar-fermionic Yukawa theory. The exact one fermion loop contribution is incorporated by using a nonlocal method to correct the local derivative expansion approximation (DE) of the effective action. As the Yukawa coupling is increased we find that the nonlocal corrections play an increasingly important role. The corrections cause the scalar field to increase in depth while maintaining its size. This increases the energy of the bag configuration, but this is compensated for by more tightly bound fermionic states with lower energy. In contrast to the semi-classical picture without quantum corrections, the binding energy is small, and the total energy scales directly with the Yukawa coupling. This confirms the qualitative behavior found in earlier work using the second order DE, although the quantitative solutions differ.
Blunden Peter G.
Stewart Iain W.
No associations
LandOfFree
Quantum solitons at strong coupling does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum solitons at strong coupling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum solitons at strong coupling will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-23578