2015/07/22 by Michael Blaszczyk, Blaszczyk, Michael, Stefan Groot Nibbelink +5 · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1507.06147
openalex publication_date 2015/07/22 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/31
Phenomenological explorations of heterotic strings have conventionally\nfocused primarily on the E8xE8 theory. We consider smooth compactifications of\nall three ten-dimensional heterotic theories to exhibit the many similarities\nbetween the non-supersymmetric SO(16)xSO(16) theory and the related\nsupersymmetric E8xE8 and SO(32) theories. In particular, we exploit these\nsimilarities to determine the bosonic and fermionic spectra of Calabi-Yau\ncompactifications with line bundles of the non-supersymmetric string. We use\nelements of four-dimensional supersymmetric effective field theory to\ncharacterize the non-supersymmetric action at leading order and determine the\nGreen-Schwarz induced axion-couplings. Using these methods we construct a\nnon-supersymmetric Standard Model(SM)-like theory. In addition, we show that it\nis possible to obtain SM-like models from the standard embedding using at least\nan order four Wilson line. Finally, we make a proposal of the states that live\non five branes in the SO(16)xSO(16) theory and find under certain assumptions\nthe surprising result that anomaly factorization only admits at most a single\nbrane solution.\n