Snowmass White Paper: String Theory and Particle Physics

Cvetič, Mirjam; Halverson, Jeffrey B.; Shiu, Gary; Taylor, Washington

doi:10.48550/arxiv.2204.01742

Cited by 6 publications

(9 citation statements)

References 289 publications

(336 reference statements)

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“…Also, being armed with this knowledge about the entire ensemble of vacua may prove useful in understanding more refined statistics or searching for the needle-in-the-haystack that is the MSSM. See [52] for a recent summary of attempts to construct the MSSM in various corners of the string landscape. For example, machine learning approaches for sampling from this ensemble may be informed by which choices for the moduli allow for more solutions to the consistency conditions.…”

Section: Discussionmentioning

confidence: 99%

134 billion intersecting brane models

Loges

Shiu

2022

J. High Energ. Phys.

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The landscape of string vacua is very large, but generally expected to be finite in size. Enumerating the number and properties of the vacua is an important task for both the landscape and the swampland, in part to gain a deeper understanding of what is possible and “generic”. We obtain an exact counting of distinct intersecting brane vacua of type IIA string theory on the 𝕋6/ℤ2× ℤ2 orientifold. Care is taken to only count gauge-inequivalent brane configurations. Leveraging the recursive nature by which branes may be added together one-by-one, we use dynamic programming to efficiently count the number of solutions of the tadpole, K-theory and supersymmetry consistency conditions. The distributions of 4D gauge group rank and complex structure moduli for the entire ensemble of intersecting brane vacua are presented. The methods we developed here may be useful in obtaining sharp upper and lower bounds on other corners of the landscape.

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Section: Discussionmentioning

confidence: 99%

134 billion intersecting brane models

Loges

Shiu

2022

J. High Energ. Phys.

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“…the program to realize our Universe in string theory, it has been a long-standing and primary goal to find the structure of the Standard Model (SM) of particle physics within the string landscape. While many (supersymmetric) string vacua have been identified that share many of the principal features of the Standard Model, there is as yet no single vacuum known in the string landscape that reproduces all the observed phenomenological details of our world; for recent reviews of work in this direction, see [2,3].…”

Section: Jhep05(2024)334mentioning

confidence: 99%

Towards natural and realistic E7 GUTs in F-theory

Li,

Taylor

2024

J. High Energ. Phys.

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We consider phenomenological aspects of a natural class of Standard Model-like supersymmetric F-theory vacua realized through flux breaking of rigid E7 gauge factors. Three generations of Standard Model matter are realized in many of these vacua. We further find that many other Standard Model-like features are naturally compatible with these constructions. For example, dimension-4 and 5 terms associated with proton decay are ubiquitously suppressed. Many of these features are due to the group theoretical structure of E7 and associated F-theory geometry. In particular, a set of approximate global symmetries descends from the E7 group, leading to exponential suppression of undesired couplings.

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“…Efforts to connect string theory to elementary particle physics have a rich history, reviewed in [7] (where one can find many relevant references). A great deal of the effort in research to date has been focused on making tree-level supersymmetric solutions of string theory that realize N=1 supersymmetric models of (close to) realistic particle physics.…”

Section: String Theory and Particle Physicsmentioning

confidence: 99%