Supersymmetric Pati-Salam Models from Intersecting D6-branes: A Road to the Standard Model
By M. Cvetič, Tianjun Li, Tao Liu. 2004
139 citations recorded by the source corpus.
Abstract We provide a systematic construction of three-family N = 1 supersymmetric Pati–Salam models from Type IIA orientifolds on T 6 / ( Z 2 × Z 2 ) with intersecting D6-branes. All the gauge symmetry factors SU ( 4 ) C × SU ( 2 ) L × SU ( 2 ) R arise from the stacks of D6-branes with U ( n ) gauge symmetries, while the “hidden sector” is specified by USp ( n ) branes, parallel with the orientifold planes or their Z 2 images. The Pati–Salam gauge symmetry can be broken down to the SU ( 3 ) C × SU ( 2 ) L × U ( 1 ) B − L × U ( 1 ) I 3 R via D6-brane splittings, and further down to the Standard Model via D- and F-flatness preserving Higgs mechanism from massless open string states in a N = 2 subsector. The models also possess at least two confining hidden gauge sectors, where gaugino condensation can in turn trigger supersymmetry breaking and (some) moduli stabilization. The systematic search yields 11 inequivalent models: 8 models with less than 9 Standard Model Higgs doublet-pairs and 1 model with only 2 Standard Model Higgs doublet-pairs, 2 models possess at the string scale the gauge coupling unification of SU ( 2 ) L and SU ( 2 ) R , and all the models possess additional exotic matters. We also make preliminary comments on phenomenological implications of these models.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/fae242a1a790810d12c78e70ffc96ea74e77e8a9
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Citations in the corpus
- Getting just the supersymmetric standard model at intersecting branes on the Z(6) orientifold (2004, background): “Nevertheless, the goal so far has been achieved only with moderate success: either the constructions are plagued with a large amount of exotic chiral matter, as in the Z2×Z2 orientifold of [28–33], which might be cured by a confinement of the exotic chiral matter into composite fields coming from th”
- Orientifolds, hypercharge embeddings and the Standard Model (2006, background): “Orientifolds exhibiting a Pati-Salam realization of the SM have been considered before, [41, 42, 43].”
- Four-dimensional string compactifications with D-branes, orientifolds and fluxes (2006, background): “Given its relative simplicity, it is the background studied most for systematic searches for Standard Model- or MSSM-like [248, 249, 250, 251, 251, 252] and GUT-like [248, 253, 254, 255] intersecting D-brane configurations.”
- Computing Yukawa couplings from magnetized extra dimensions (2004, unknown): “There are indeed several examples in the literature of N = 1 D = 4 chiral compactifications realized as Type IIA intersecting D6-brane models [25], which are T-dual to Type I compactifications on a factorizable T 6 and with magnetic fluxes turned on.”
- TOWARD REALISTIC INTERSECTING D-BRANE MODELS (2005, methodology): “(Examples in which it does hold were given for the locally supersymmetric construction [104], two models among supersymmetric constructions in [102] and a four-family model in [103].”
- Spacetime instanton corrections in 4D string vacua: The Seesaw mechanism for D-Brane models (2006, methodology): “as in systematic constructions of threefamily supersymmetric Standard Models in [57].”