Naturalness, supersymmetry and dark matter

Peter Athron; Csaba Balazs; Ben Farmer; Doyoun Kim

Naturalness, supersymmetry and dark matter

Peter Athron, Csaba Balazs, Ben Farmer, Doyoun Kim

School of Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research

Abstract

We present the Bayesian naturalness prior to quantify electroweak fine tuning in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The naturalness prior arises automatically as an Occam razor in Bayesian model comparison quantifying the plausibility of electroweak symmetry breaking within the model. The prior incorporates the most widely used fine tuning measures as special cases. In particular, it captures features the Barbieri-Ellis-Giudice, and the Electroweak Fine Tuning measures. We present the amount of Bayesian fine tuning over parameter space slices of the Constrained MSSM, the Constrained NMSSM, and an 11 parameter NMSSM scenario. According to the naturalness prior the constrained models are less tuned than other fine-tuning measures indicate.

Original language	English
Title of host publication	11th International Workshop Dark Side of the Universe 2015
Place of Publication	Italy
Publisher	Proceedings of Science
Number of pages	8
Publication status	Published - 2015
Event	International Workshop on the Dark Side of The Universe (DSU) 2015 - Kyoto University, Kyoto, Japan Duration: 14 Dec 2015 → 18 Dec 2015 Conference number: 11th http://www2.yukawa.kyoto-u.ac.jp/~dsu2015/index.html

Workshop

Workshop	International Workshop on the Dark Side of The Universe (DSU) 2015
Abbreviated title	DSU 2015
Country/Territory	Japan
City	Kyoto
Period	14/12/15 → 18/12/15
Internet address	http://www2.yukawa.kyoto-u.ac.jp/~dsu2015/index.html

Cite this

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title = "Naturalness, supersymmetry and dark matter",

abstract = "We present the Bayesian naturalness prior to quantify electroweak fine tuning in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The naturalness prior arises automatically as an Occam razor in Bayesian model comparison quantifying the plausibility of electroweak symmetry breaking within the model. The prior incorporates the most widely used fine tuning measures as special cases. In particular, it captures features the Barbieri-Ellis-Giudice, and the Electroweak Fine Tuning measures. We present the amount of Bayesian fine tuning over parameter space slices of the Constrained MSSM, the Constrained NMSSM, and an 11 parameter NMSSM scenario. According to the naturalness prior the constrained models are less tuned than other fine-tuning measures indicate.",

author = "Peter Athron and Csaba Balazs and Ben Farmer and Doyoun Kim",

year = "2015",

language = "English",

booktitle = "11th International Workshop Dark Side of the Universe 2015",

publisher = "Proceedings of Science",

address = "Italy",

note = "International Workshop on the Dark Side of The Universe (DSU) 2015, DSU 2015 ; Conference date: 14-12-2015 Through 18-12-2015",

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T1 - Naturalness, supersymmetry and dark matter

AU - Athron, Peter

AU - Balazs, Csaba

AU - Farmer, Ben

AU - Kim, Doyoun

N1 - Conference code: 11th

PY - 2015

Y1 - 2015

N2 - We present the Bayesian naturalness prior to quantify electroweak fine tuning in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The naturalness prior arises automatically as an Occam razor in Bayesian model comparison quantifying the plausibility of electroweak symmetry breaking within the model. The prior incorporates the most widely used fine tuning measures as special cases. In particular, it captures features the Barbieri-Ellis-Giudice, and the Electroweak Fine Tuning measures. We present the amount of Bayesian fine tuning over parameter space slices of the Constrained MSSM, the Constrained NMSSM, and an 11 parameter NMSSM scenario. According to the naturalness prior the constrained models are less tuned than other fine-tuning measures indicate.

AB - We present the Bayesian naturalness prior to quantify electroweak fine tuning in the Next-to-Minimal Supersymmetric Standard Model (NMSSM). The naturalness prior arises automatically as an Occam razor in Bayesian model comparison quantifying the plausibility of electroweak symmetry breaking within the model. The prior incorporates the most widely used fine tuning measures as special cases. In particular, it captures features the Barbieri-Ellis-Giudice, and the Electroweak Fine Tuning measures. We present the amount of Bayesian fine tuning over parameter space slices of the Constrained MSSM, the Constrained NMSSM, and an 11 parameter NMSSM scenario. According to the naturalness prior the constrained models are less tuned than other fine-tuning measures indicate.

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M3 - Conference Paper

BT - 11th International Workshop Dark Side of the Universe 2015

PB - Proceedings of Science

CY - Italy

T2 - International Workshop on the Dark Side of The Universe (DSU) 2015

Y2 - 14 December 2015 through 18 December 2015

ER -

Naturalness, supersymmetry and dark matter

Abstract

Workshop

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ARC Centre of Excellence for Particle Physics at the Tera-Scale

Cite this

Naturalness, supersymmetry and dark matter

Abstract

Workshop

Other files and links

Projects

ARC Centre of Excellence for Particle Physics at the Tera-Scale

Cite this