One in a Billion: MSSM-like D-Brane Statistics

By F. Gmeiner, Ralph Blumenhagen, G. Honecker, D. Lust, T. Weigand. 2005

204 citations recorded by the source corpus.

Continuing our recent work hep-th/0411173, we study the statistics of four-dimensional, supersymmetric intersecting D-brane models in a toroidal orientifold background. We have performed a vast computer survey of solutions to the stringy consistency conditions and present their statistical implications with special emphasis on the frequency of Standard Model features. Among the topics we discuss are the implications of the K-theory constraints, statistical correlations among physical quantities and an investigation of the various statistical suppression factors arising once certain Standard Model features are required. We estimate the frequency of an MSSM like gauge group with three generations to be one in a billion.

Subfields: Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/b7f27eec1d0eecffc6f555cf2b3304b36c6da244

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Citations in the corpus

Four-dimensional string compactifications with D-branes, orientifolds and fluxes (2006, methodology): “These results were supplemented and confirmed by concrete results from a long term brute force computer search as reported in [556, 557, 558, 559].”
Two Hundred Heterotic Standard Models on Smooth Calabi-Yau Threefolds (2011, background): “Hence, a “one in a billion” rule of thumb [44] is not too far from the truth in this part of the heterotic vacuum space.”
The Cosmological Constant and the String Landscape (2006, background): “A recent paper quantifies this [62]: in one construction they are one in a billion, even after taking into account the anthropic constraint that there be an asymptotically free group so that the long distance physics is nontrivial.”
Orientifolds, hypercharge embeddings and the Standard Model (2006, background): “A recent investigation [22] of Z2 × Z2 orbifolds has shown that the three family standard model spectrum is just beyond the limit of statistics in that case.”