Supersymmetry versus gauge symmetry on the heterotic landscape

Keith R Dienes, Michael Lennek, David Sénéchal, Vaibhav Wasnik

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

One of the goals of the landscape program in string theory is to extract information about the space of string vacua in the form of statistical correlations between phenomenological features that are otherwise uncorrelated in field theory. Such correlations would thus represent predictions of string theory that hold independently of a vacuum-selection principle. In this paper, we study statistical correlations between two features which are likely to be central to any potential description of nature at high-energy scales: gauge symmetries and spacetime supersymmetry. We analyze correlations between these two kinds of symmetry within the context of perturbative heterotic string vacua, and find a number of striking features. We find, for example, that the degree of spacetime supersymmetry is strongly correlated with the probabilities of realizing certain gauge groups, with unbroken supersymmetry at the string scale tending to favor gauge-group factors with larger rank. We also find that nearly half of the heterotic landscape is nonsupersymmetric and yet tachyon-free at tree level; indeed, less than a quarter of the tree-level heterotic landscape exhibits any supersymmetry at all at the string scale.

Original languageEnglish (US)
Article number126005
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume75
Issue number12
DOIs
StatePublished - Jun 27 2007

Fingerprint

Gauge Symmetry
Supersymmetry
supersymmetry
strings
Strings
statistical correlation
Gauge Group
symmetry
String Theory
string theory
Space-time
Selection Principles
Field Theory
High Energy
Vacuum
Likely
Symmetry
vacuum
Prediction
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

Supersymmetry versus gauge symmetry on the heterotic landscape. / Dienes, Keith R; Lennek, Michael; Sénéchal, David; Wasnik, Vaibhav.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 75, No. 12, 126005, 27.06.2007.

Research output: Contribution to journalArticle

@article{7bae4f809f98460f9e13bd0dff52618d,
title = "Supersymmetry versus gauge symmetry on the heterotic landscape",
abstract = "One of the goals of the landscape program in string theory is to extract information about the space of string vacua in the form of statistical correlations between phenomenological features that are otherwise uncorrelated in field theory. Such correlations would thus represent predictions of string theory that hold independently of a vacuum-selection principle. In this paper, we study statistical correlations between two features which are likely to be central to any potential description of nature at high-energy scales: gauge symmetries and spacetime supersymmetry. We analyze correlations between these two kinds of symmetry within the context of perturbative heterotic string vacua, and find a number of striking features. We find, for example, that the degree of spacetime supersymmetry is strongly correlated with the probabilities of realizing certain gauge groups, with unbroken supersymmetry at the string scale tending to favor gauge-group factors with larger rank. We also find that nearly half of the heterotic landscape is nonsupersymmetric and yet tachyon-free at tree level; indeed, less than a quarter of the tree-level heterotic landscape exhibits any supersymmetry at all at the string scale.",
author = "Dienes, {Keith R} and Michael Lennek and David S{\'e}n{\'e}chal and Vaibhav Wasnik",
year = "2007",
month = "6",
day = "27",
doi = "10.1103/PhysRevD.75.126005",
language = "English (US)",
volume = "75",
journal = "Physical review D: Particles and fields",
issn = "0556-2821",
publisher = "American Institute of Physics",
number = "12",

}

TY - JOUR

T1 - Supersymmetry versus gauge symmetry on the heterotic landscape

AU - Dienes, Keith R

AU - Lennek, Michael

AU - Sénéchal, David

AU - Wasnik, Vaibhav

PY - 2007/6/27

Y1 - 2007/6/27

N2 - One of the goals of the landscape program in string theory is to extract information about the space of string vacua in the form of statistical correlations between phenomenological features that are otherwise uncorrelated in field theory. Such correlations would thus represent predictions of string theory that hold independently of a vacuum-selection principle. In this paper, we study statistical correlations between two features which are likely to be central to any potential description of nature at high-energy scales: gauge symmetries and spacetime supersymmetry. We analyze correlations between these two kinds of symmetry within the context of perturbative heterotic string vacua, and find a number of striking features. We find, for example, that the degree of spacetime supersymmetry is strongly correlated with the probabilities of realizing certain gauge groups, with unbroken supersymmetry at the string scale tending to favor gauge-group factors with larger rank. We also find that nearly half of the heterotic landscape is nonsupersymmetric and yet tachyon-free at tree level; indeed, less than a quarter of the tree-level heterotic landscape exhibits any supersymmetry at all at the string scale.

AB - One of the goals of the landscape program in string theory is to extract information about the space of string vacua in the form of statistical correlations between phenomenological features that are otherwise uncorrelated in field theory. Such correlations would thus represent predictions of string theory that hold independently of a vacuum-selection principle. In this paper, we study statistical correlations between two features which are likely to be central to any potential description of nature at high-energy scales: gauge symmetries and spacetime supersymmetry. We analyze correlations between these two kinds of symmetry within the context of perturbative heterotic string vacua, and find a number of striking features. We find, for example, that the degree of spacetime supersymmetry is strongly correlated with the probabilities of realizing certain gauge groups, with unbroken supersymmetry at the string scale tending to favor gauge-group factors with larger rank. We also find that nearly half of the heterotic landscape is nonsupersymmetric and yet tachyon-free at tree level; indeed, less than a quarter of the tree-level heterotic landscape exhibits any supersymmetry at all at the string scale.

UR - http://www.scopus.com/inward/record.url?scp=34347386235&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34347386235&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.75.126005

DO - 10.1103/PhysRevD.75.126005

M3 - Article

AN - SCOPUS:34347386235

VL - 75

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 12

M1 - 126005

ER -