In heterotic Z3 x Z3 orbifolds, the tree-level Yukawa amplitude has an exact column texture Y_lead(i,j) = c ε^{q_R[j]} with universal O(1) coefficient c across generations.
A Mini-Landscape of Exact MSSM Spectra in Heterotic Orbifolds
2 Pith papers cite this work. Polarity classification is still indexing.
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abstract
We explore a ``fertile patch'' of the heterotic landscape based on a Z_6-II orbifold with SO(10) and E_6 local GUT structures. We search for models allowing for the exact MSSM spectrum. Our result is that of order 100 out of a total 3\times 10^4 inequivalent models satisfy this requirement.
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Lecture notes providing a technical introduction to naturalness problems and the string theory landscape for graduate students.
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The exact column texture: tree-level Yukawa universality in heterotic $Z_3 \times Z_3$ orbifolds
In heterotic Z3 x Z3 orbifolds, the tree-level Yukawa amplitude has an exact column texture Y_lead(i,j) = c ε^{q_R[j]} with universal O(1) coefficient c across generations.
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Lectures on Naturalness, String Landscape and Multiverse
Lecture notes providing a technical introduction to naturalness problems and the string theory landscape for graduate students.