7 papers
Constraints on Standard Model Constructions in F-theory
Mirjam Cvetic, James Halverson, Ling Lin +1
We argue that the following three statements cannot all be true: (i) our vacuum is a type IIB / F-theory vacuum at moderate-to-large , (ii) the -expansion is controlle…
5d Superconformal Field Theories and Graphs
Fabio Apruzzi, Craig Lawrie, Ling Lin +2
We propose a graph-theoretic description to determine and characterize 5d superconformal field theories (SCFTs) that arise as circle reductions of 6d SCFTs. E…
Fibers add Flavor, Part I: Classification of 5d SCFTs, Flavor Symmetries and BPS States
Fabio Apruzzi, Craig Lawrie, Ling Lin +2
We propose a graph-based approach to 5d superconformal field theories (SCFTs) based on their realization as M-theory compactifications on singular elliptic Calabi--Yau threefolds.…
Yukawa Hierarchies in Global F-theory Models
Mirjam Cvetic, Ling Lin, Muyang Liu +2
We argue that global F-theory compactifications to four dimensions generally exhibit higher rank Yukawa matrices from multiple geometric contributions known as Yukawa points. The h…
A Quadrillion Standard Models from F-theory
Mirjam Cvetic, James Halverson, Ling Lin +2
We present an explicit construction of globally consistent string compactifications that realize the exact chiral spectrum of the Standard Model of particle phy…
Pixelated Dark Energy
Jonathan J. Heckman, Craig Lawrie, Ling Lin +2
We study the phenomenology of a recent string construction with a quantum mechanically stable dark energy. A mild supersymmetry protects the vacuum energy but also allows $O(10 - 1…