Publications (14)
Systematic Investigations of the Free Fermionic Heterotic String Gauge Group Statistics: Layer 1 Results
D. Moore, J. Greenwald, T. Renner +6
Using software under development at Baylor University, we explicitly construct all layer 1 gauge, weakly coupled free fermionic heterotic string models up to order 22 in four large…
Where are linearized gauge invariants encoded for plane waves in linearized gravity?
R. Radhakrishnan, D. McNutt, D. Mirfendereski +3
The Newman--Penrose (NP) formalism is traditionally used to analyze the polarization content of gravitational waves, while the gauge-invariant Bardeen formalism provides a compleme…
Intermediate Scales, Mu Parameter, and Fermion Masses from String Models
G. Cleaver, M. Cvetic, J. R. Espinosa +2
We address intermediate scales within a class of string models. The intermediate scales occur due to the SM singlets S_i acquiring non-zero VEVs due to radiative breaking; the mass…
Geometric surfaces: An invariant characterization of spherically symmetric black hole horizons and wormhole throats
D. D. McNutt, W. Julius, M. Gorban +3
We consider a spherically symmetric line element which admits either a black hole geometry or a wormhole geometry and show that in both cases the apparent horizon or the wormhole t…
Ratio of Quark Masses in Duality Theories
G. Cleaver, K. Tanaka
We consider N=2 SU(2) Seiberg-Witten duality theory for models with N_f=2 and N_f=3 quark flavors. We investigate arbitrary large bare mass ratios between the two or three quarks a…
Killing Invariants: An approach to the sub-classification of geometries with symmetry
C. Brown, M. Gorban, W. Julius +3
In principle, the local classification of spacetimes is always possible using the Cartan-Karlhede algorithm. However, in practice, the process of determining equivalence of two spa…
A Simple Introduction to Particle Physics
M. Robinson, K. Bland, G. Cleaver +1
This is the first of a series of papers in which we present a brief introduction to the relevant mathematical and physical ideas that form the foundation of Particle Physics, inclu…
Physics Implications of Flat Directions in Free Fermionic Superstring Models I: Mass Spectrum and Couplings
G. Cleaver, M. Cvetic, J. R. Espinosa +3
From the "top-down" approach we investigate physics implications of the class of D- and F- flat directions formed from non-Abelian singlets which are proven flat to all orders in t…
Stringent Phenomenological Investigation into Heterotic String Optical Unification
J. Perkins, B. Dundee, R. Obousy +6
For the weakly coupled heterotic string (WCHS) there is a well-known factor of twenty conflict between the minimum string coupling unification scale, Lambda_H ~5x10^(17) GeV, and t…
Report of the Supersymmetry Theory Working Group
J. Amundson, G. Anderson, H. Baer +21
We provide a mini-guide to some of the possible manifestations of weak scale supersymmetry. For each of six scenarios we provide a brief description of the theoretical underpinning…
Free Fermionic Heterotic Model Building and Root Systems
M. Robinson, G. Cleaver, M. Hunziker
We consider an alternative derivation of the GSO Projection in the free fermionic construction of the weakly coupled heterotic string in terms of root systems, as well as the inter…
Physics Implications of Flat Directions in Free Fermionic Superstring Models II: Renormalization Group Analysis
G. Cleaver, M. Cvetic, J. R. Espinosa +3
We continue the investigation of the physics implications of a class of flat directions for a prototype quasi-realistic free fermionic string model (CHL5), building upon the result…
Investigation of Quasi--Realistic Heterotic String Models with Reduced Higgs Spectrum
G. Cleaver, A. E. Faraggi, J. Greenwald +4
Quasi--realistic heterotic-string models in the free fermionic formulation typically contain an anomalous U(1), which gives rise to a Fayet-Iliopolous term that breaks supersymmetr…
Classification of Flat Directions in Perturbative Heterotic Superstring Vacua with Anomalous U(1)
G. Cleaver, M. Cvetic, J. R. Espinosa +2
We develop techniques to classify D- and F-flat directions for N=1 supersymmetric string vacua of the perturbative heterotic string theory, which possess an anomalous U(1) gauge gr…