Titlebook: Quarks and Leptons From Orbifolded Superstring; Kang-Sin Choi,Jihn E. Kim Book 2020Latest edition Springer Nature Switzerland AG 2020 orbi

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Orbifold Phenomenology,We are now ready to use the toolkits we have studied and build concrete models. After describing the construction procedure, we review some generic phenomenological features from string constructed model.

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String Unification,In this chapter, we discuss grand unified theories (GUTs) from the . heterotic string and present the resultant phenomenological implications. We take concrete example a flipped SU(5) model on . orbifold. In Chaps. .–., we discussed in length the theoretical framework for orbifolded superstrings.

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Smooth Compactification,An important class of manifolds permitting . supersymmetry in four dimension are the Calabi–Yau manifolds. For a gauge hierarchy solution, supersymmetry is desirable. For the chiral nature of the SM fermions, it is restricted to minimal supersymmetry.

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Spinors,4D chiral fermions. Therefore, let us define spinors in arbitrary dimensions and study their key properties related to our phenomenological needs. Also we summarize massless supersymmetry multiplets in various dimensions.

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Quantization of Strings, physics described by the Standard Model (SM). As summarized in Chap. ., the SM is a chiral theory for fermions, and hence obtaining a chiral spectrum from string theory is of utmost importance. This goes with string theory with fermions, i.e., superstring rather than bosonic string. Superstring is