Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-11-05
Phys.Rev.D77:125023,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
48 pages, 13 eps figures. Better organization and discussion of the Yukawa couplings. Added section on moduli stabilization. A
Scientific paper
10.1103/PhysRevD.77.125023
We study the possible phenomenology of a three-family Pati-Salam model constructed from intersecting D6-branes in Type IIA string theory on the T^6/(Z2 x Z2) orientifold with some desirable semi-realistic features. In the model, tree-level gauge coupling unification is achieved automatically at the string scale, and the gauge symmetry may be broken to the Standard Model (SM) close to the string scale. The small number of extra chiral exotic states in the model may be decoupled via the Higgs mechanism and strong dynamics. We calculate the possible supersymmetry breaking soft terms and the corresponding low-energy supersymmetric particle spectra which may potentially be tested at the Large Hadron Collider (LHC). We find that for the viable regions of the parameter space the lightest CP-even Higgs boson mass usually satisfies m_H < 120 GeV, and the observed dark matter density may be generated. Finally, we find that it is possible to obtain correct SM quark masses and mixings, and the tau lepton mass at the unification scale. Additionally, neutrino masses and mixings may be generated via the seesaw mechanism. Mechanisms to stabilize the open and closed-string moduli, which are necessary for the model to be truly viable and to make definite predictions are discussed.
Chen Ching-Ming
Li Tiancheng
Mayes Van E.
Nanopoulos Dimitri V.
No associations
LandOfFree
Realistic Yukawa Textures and SUSY Spectra from Intersecting Branes 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 Realistic Yukawa Textures and SUSY Spectra from Intersecting Branes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Realistic Yukawa Textures and SUSY Spectra from Intersecting Branes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-133679