Chiral Four-Dimensional N=1 Supersymmetric Type IIA Orientifolds from Intersecting D6-Branes
By M. Cvetič, Gary Shiu, A. Uranga. 2001
503 citations recorded by the source corpus.
We construct N = 1 supersymmetric four-dimensional orientifolds of type IIA on T 6 /(Z2 × Z2) with D6-branes intersecting at angles. The use of D6branes not fully aligned with the O6-planes in the model allows for a construction of many supersymmetric models with chiral matter, including those with the Standard Model and grand unified gauge groups. We perform a search for realistic gauge sectors, and construct the first example of a supersymmetric type II orientifold with SU(3)C × SU(2)L × U(1)Y gauge group and three quark-lepton families. In addition to the supersymmetric Standard Model content, the model contains right-handed neutrinos, a (chiral but anomalyfree) set of exotic multiplets, and diverse vector-like multiplets. The general class of these constructions are related to familiar type II orientifolds by small instanton transitions, which in some cases change the number of generations, as discussed in specific models. These constructions are supersymmetric only for special choices of untwisted moduli. We briefly discuss the supersymmetry breaking effects away from that point. The M-theory lift of this general class of supersymmetric orientifold models should correspond to purely geometrical backgrounds admitting a singular G2 holonomy metric and leading to four-dimensional M-theory vacua with chiral fermions.
Subfields: Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/492f90a5b7b0d0cbb3d35fdeb5c1a05a6a1171d1
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Citations in the corpus
- D‐branes in Standard Model building, gravity and cosmology (2003, methodology): “Finally we should mention that one may construct models with a string scale close to the Planck scale and unbroken supersymmetry [152]-[158].”
- Chiral 4d string vacua with D branes and NSNS and RR fluxes (2003, methodology): “In particular, this shows that there exist N = 1 supersymmetric models of magnetised D9-branes containing chiral fermions, by simply T-dualizing the models of intersecting D6-branes in [19].”
- Gauge threshold corrections in intersecting brane world models (2003, background): “XK a,b =1 NaNb X a∈[ ] b∈[b],a6= b Aab = X a=1,...,K Na XK b=1 b6= a Nb X a b∈[b] Aab + XK a N2 a X a,a′∈[ ] a6= a′ Aaa′ , (2.8) 6 with the model dependent numbers aab, which may looked up from Refs. [12,13,16]. The numbers Na,Nb arise from the traces over the γ–matrices acting on the Chan–Paton fac”
- Getting just the supersymmetric standard model at intersecting branes on the Z(6) orientifold (2004, background): “ruct instead a N= 1 supersymmetric standard model (or supersymmetric SU(5) GUTs and Pati-Salam models respectively). A first supersymmetric three-generation standard-like model has been constructed in [28,29]. Nevertheless, the goal so far has been achieved only with moderate success: either the cons”
- Proton stability in grand unified theories, in strings and in branes (2006, background): “An interesting class of models are those based on intersecting D branes [355, 356, 357, 358, 359] and attempts have been made to build semi-realistic models based on these [360, 361, 362, 363, 364, 365], and issues of gauge coupling unification, soft breaking and possible applications to the real wo”
- Generalized N=1 orientifold compactifications and the Hitchin functionals (2006, background): “Prominent examples are type II theories on Calabi-Yau orientifolds, since reductions on Calabi-Yau manifolds yield a four-dimensional N = 2 supergravity while the orientifold projection breaks the supersymmetry further down to N = 1 [6, 7, 8, 9, 10, 11].”
- Anomaly cancellation and abelian gauge symmetries in F-theory (2012, methodology): “tly linked with tadpole cancellation that imposes constraints on the brane conguration and allowed uxes. For setups at weak string coupling this link has been discussed and reviewed, for example, in [16, 17, 18, 19, 20, 21]. In contrast to the weakly coupled Type IIB theory, where brane uxes are con”
- D-terms and F-terms from D7-brane fluxes (2005, background): “For this analysis one needs to thoroughly look at the orientifold projection at the intersection locus [60, 26] which is beyond the scope of this work.”