Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1995-09-05
Nucl.Phys.Proc.Suppl. 45BC (1996) 207-216
Physics
High Energy Physics
High Energy Physics - Theory
Based on a talk given by the first author at the Trieste Spring Workshop, 1995. Contains some new results
Scientific paper
10.1016/0920-5632(95)00638-9
Exact Superstring solutions are constructed moving in 4-D space-time with positive curvature and non-trivial dilaton and antisymmetric tensor fields. The full spectrum of string excitations is derived as a function of moduli fields $T^{i}$ and the scale $\mu^2=1/(k+2)$ which induced by the non-zero background fields. The spectrum of string excitations has a non-zero mass gap $\mu^2$ and in the weak curvature limit ($\mu$ small) $\mu^2$ plays the role of a well defined infrared regulator, consistent with modular invariance, gauge invariance, supersymmetry and chirality. The effects of a covariantly constant chomo-magnetic field $B$ as well as additional curvature can be derived exactly up to one string-loop level. Thus, the one-loop corrections to all couplings (gravitational, gauge and Yukawas) are unambiguously computed and are finite both in the Ultra-Violet and the Infra-Red regime. These corrections are necessary for quantitative string superunification predictions at low energies. Similar calculations are done in the effective field theory. The one-loop corrections to the couplings are also found to satisfy Infrared Flow Equations.
Kiritsis Elias
Kounnas Costas
No associations
LandOfFree
One Loop Corrections to Coupling Constants in IR-regulated String Theory 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 One Loop Corrections to Coupling Constants in IR-regulated String Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and One Loop Corrections to Coupling Constants in IR-regulated String Theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-350905