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Title: Killing the cMSSM softly

Abstract

We investigate the constrained Minimal Supersymmetric Standard Model (cMSSM) in the light of constraining experimental and observational data from precision measurements, astrophysics, direct supersymmetry searches at the LHC and measurements of the properties of the Higgs boson, by means of a global fit using the program Fittino. As in previous studies, we find rather poor agreement of the best fit point with the global data. We also investigate the stability of the electro-weak vacuum in the preferred region of parameter space around the best fit point.We find that the vacuum is metastable, with a lifetime significantly longer than the age of the Universe. For the first time in a global fit of supersymmetry, we employ a consistent methodology to evaluate the goodness-of-fit of the cMSSM in a frequentist approach by deriving p values from large sets of toy experiments. We analyse analytically and quantitatively the impact of the choice of the observable set on the p value, and in particular its dilution when confronting the model with a large number of barely constraining measurements. Lastly, for the preferred sets of observables, we obtain p values for the cMSSM below 10 %, i.e. we exclude the cMSSM as a model atmore » the 90 % confidence level.« less

Authors:
 [1];  [2];  [1];  [1];  [3];  [4];  [5];  [5];  [1];  [6];  [1];  [1]
  1. Univ. of Bonn, Bonn (Germany)
  2. Lund Univ., Lund (Sweden)
  3. Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil)
  4. RWTH Aachen, Aachen (Germany)
  5. Univ. of Wurzburg, Wurzburg (Germany)
  6. Univ. of California, Santa Cruz, CA (United States)
Publication Date:
Research Org.:
Univ. of California, Santa Cruz, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1361218
Grant/Contract Number:  
FG02-04ER41286
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 76; Journal Issue: 2; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Bechtle, Philip, Camargo-Molina, José Eliel, Desch, Klaus, Dreiner, Herbert K., Hamer, Matthias, Krämer, Michael, O’Leary, Ben, Porod, Werner, Sarrazin, Björn, Stefaniak, Tim, Uhlenbrock, Mathias, and Wienemann, Peter. Killing the cMSSM softly. United States: N. p., 2016. Web. doi:10.1140/epjc/s10052-015-3864-0.
Bechtle, Philip, Camargo-Molina, José Eliel, Desch, Klaus, Dreiner, Herbert K., Hamer, Matthias, Krämer, Michael, O’Leary, Ben, Porod, Werner, Sarrazin, Björn, Stefaniak, Tim, Uhlenbrock, Mathias, & Wienemann, Peter. Killing the cMSSM softly. United States. https://doi.org/10.1140/epjc/s10052-015-3864-0
Bechtle, Philip, Camargo-Molina, José Eliel, Desch, Klaus, Dreiner, Herbert K., Hamer, Matthias, Krämer, Michael, O’Leary, Ben, Porod, Werner, Sarrazin, Björn, Stefaniak, Tim, Uhlenbrock, Mathias, and Wienemann, Peter. Wed . "Killing the cMSSM softly". United States. https://doi.org/10.1140/epjc/s10052-015-3864-0. https://www.osti.gov/servlets/purl/1361218.
@article{osti_1361218,
title = {Killing the cMSSM softly},
author = {Bechtle, Philip and Camargo-Molina, José Eliel and Desch, Klaus and Dreiner, Herbert K. and Hamer, Matthias and Krämer, Michael and O’Leary, Ben and Porod, Werner and Sarrazin, Björn and Stefaniak, Tim and Uhlenbrock, Mathias and Wienemann, Peter},
abstractNote = {We investigate the constrained Minimal Supersymmetric Standard Model (cMSSM) in the light of constraining experimental and observational data from precision measurements, astrophysics, direct supersymmetry searches at the LHC and measurements of the properties of the Higgs boson, by means of a global fit using the program Fittino. As in previous studies, we find rather poor agreement of the best fit point with the global data. We also investigate the stability of the electro-weak vacuum in the preferred region of parameter space around the best fit point.We find that the vacuum is metastable, with a lifetime significantly longer than the age of the Universe. For the first time in a global fit of supersymmetry, we employ a consistent methodology to evaluate the goodness-of-fit of the cMSSM in a frequentist approach by deriving p values from large sets of toy experiments. We analyse analytically and quantitatively the impact of the choice of the observable set on the p value, and in particular its dilution when confronting the model with a large number of barely constraining measurements. Lastly, for the preferred sets of observables, we obtain p values for the cMSSM below 10 %, i.e. we exclude the cMSSM as a model at the 90 % confidence level.},
doi = {10.1140/epjc/s10052-015-3864-0},
journal = {European Physical Journal. C, Particles and Fields},
number = 2,
volume = 76,
place = {United States},
year = {Wed Feb 24 00:00:00 EST 2016},
month = {Wed Feb 24 00:00:00 EST 2016}
}

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