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Title: Direct constraints on minimal supersymmetry from Fermi-LAT observations of the dwarf galaxy Segue 1

Abstract

The dwarf galaxy Segue 1 is one of the most promising targets for the indirect detection of dark matter. We examine what constraints 9 months of Fermi-LAT gamma-ray observations of Segue 1 place upon the Constrained Minimal Supersymmetric Standard Model (CMSSM), with the lightest neutralino as the dark matter particle. We also use nested sampling to explore the CMSSM parameter space, simultaneously fitting other relevant constraints from accelerator bounds, the relic density, electroweak precision observables, the anomalous magnetic moment of the muon and B-physics. We include spectral and spatial fits to the Fermi observations, a full treatment of the instrumental response and its related uncertainty, and detailed background models. We also perform an extrapolation to 5 years of observations, assuming no signal is observed from Segue 1 in that time. Our results marginally disfavour models with low neutralino masses and high annihilation cross-sections. Virtually all of these models are however already disfavoured by existing experimental or relic density constraints.

Authors:
 [1];  [1];  [1];  [1];  [2];  [1]
  1. Stockholm Univ. (Sweden). Oskar Klein Centre for Cosmoparticle Physics and Dept. of Physics
  2. Univ. of Montpellier (France). Lab. of Theoretical Physics and Astroparticles
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
Fermi LAT Collaboration
OSTI Identifier:
1357594
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2010; Journal Issue: 01; Journal ID: ISSN 1475-7516
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; dark matter theory; dwarfs galaxies; supersymmetry and cosmology; gamma ray theory

Citation Formats

Scott, Pat, Conrad, Jan, Edsjö, Joakim, Bergström, Lars, Farnier, Christian, and Akrami, Yashar. Direct constraints on minimal supersymmetry from Fermi-LAT observations of the dwarf galaxy Segue 1. United States: N. p., 2010. Web. doi:10.1088/1475-7516/2010/01/031.
Scott, Pat, Conrad, Jan, Edsjö, Joakim, Bergström, Lars, Farnier, Christian, & Akrami, Yashar. Direct constraints on minimal supersymmetry from Fermi-LAT observations of the dwarf galaxy Segue 1. United States. https://doi.org/10.1088/1475-7516/2010/01/031
Scott, Pat, Conrad, Jan, Edsjö, Joakim, Bergström, Lars, Farnier, Christian, and Akrami, Yashar. Tue . "Direct constraints on minimal supersymmetry from Fermi-LAT observations of the dwarf galaxy Segue 1". United States. https://doi.org/10.1088/1475-7516/2010/01/031. https://www.osti.gov/servlets/purl/1357594.
@article{osti_1357594,
title = {Direct constraints on minimal supersymmetry from Fermi-LAT observations of the dwarf galaxy Segue 1},
author = {Scott, Pat and Conrad, Jan and Edsjö, Joakim and Bergström, Lars and Farnier, Christian and Akrami, Yashar},
abstractNote = {The dwarf galaxy Segue 1 is one of the most promising targets for the indirect detection of dark matter. We examine what constraints 9 months of Fermi-LAT gamma-ray observations of Segue 1 place upon the Constrained Minimal Supersymmetric Standard Model (CMSSM), with the lightest neutralino as the dark matter particle. We also use nested sampling to explore the CMSSM parameter space, simultaneously fitting other relevant constraints from accelerator bounds, the relic density, electroweak precision observables, the anomalous magnetic moment of the muon and B-physics. We include spectral and spatial fits to the Fermi observations, a full treatment of the instrumental response and its related uncertainty, and detailed background models. We also perform an extrapolation to 5 years of observations, assuming no signal is observed from Segue 1 in that time. Our results marginally disfavour models with low neutralino masses and high annihilation cross-sections. Virtually all of these models are however already disfavoured by existing experimental or relic density constraints.},
doi = {10.1088/1475-7516/2010/01/031},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 01,
volume = 2010,
place = {United States},
year = {2010},
month = {1}
}

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Cited by: 66 works
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Figures / Tables:

Figure 1 Figure 1: Photon counts observed by Fermi in the region around Segue 1 during the first 9 months of LAT operation in all-sky survey mode. Counts are integrated over all energies between 100 MeV and 300 GeV. The red cross shows the exact location of the centre of Segue 1,more » and the red box shows the region included in our likelihood calculations.« less

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Works referenced in this record:

Supersymmetric dark matter
journal, March 1996


Non-baryonic dark matter: observational evidence and detection methods
journal, April 2000


Particle dark matter: evidence, candidates and constraints
journal, January 2005


Dark matter candidates
journal, October 2009


Weak Scale Supersymmetry
book, January 2006


The Most Dark‐Matter–dominated Galaxies: Predicted Gamma‐Ray Signals from the Faintest Milky Way Dwarfs
journal, May 2008

  • Strigari, Louis E.; Koushiappas, Savvas M.; Bullock, James S.
  • The Astrophysical Journal, Vol. 678, Issue 2
  • DOI: 10.1086/529488

Dark matter signals from Draco and Willman 1: prospects for MAGIC II and CTA
journal, January 2009

  • Bringmann, Torsten; Doro, Michele; Fornasa, Mattia
  • Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 01
  • DOI: 10.1088/1475-7516/2009/01/016

Could the Fermi Large Area Telescope detect γ -rays from dark matter annihilation in the dwarf galaxies of the Local Group?
journal, January 2009


Bounds on cross sections and lifetimes for dark matter annihilation and decay into charged leptons from gamma-ray observations of dwarf galaxies
journal, July 2009


The Kinematics of the Ultra‐faint Milky Way Satellites: Solving the Missing Satellite Problem
journal, November 2007

  • Simon, Joshua D.; Geha, Marla
  • The Astrophysical Journal, Vol. 670, Issue 1
  • DOI: 10.1086/521816

The discovery of Segue 2: a prototype of the population of satellites of satellites
journal, August 2009


The Least-Luminous Galaxy: Spectroscopy of the Milky way Satellite Segue 1
journal, February 2009


Indirect Dark Matter detection from Dwarf satellites: joint expectations from astrophysics and supersymmetry
journal, June 2009

  • Martinez, Gregory D.; Bullock, James S.; Kaplinghat, Manoj
  • Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 06
  • DOI: 10.1088/1475-7516/2009/06/014

Cats and Dogs, Hair and a Hero: A Quintet of New Milky Way Companions
journal, January 2007

  • Belokurov, V.; Zucker, D. B.; Evans, N. W.
  • The Astrophysical Journal, Vol. 654, Issue 2
  • DOI: 10.1086/509718

Dark matter dominated dwarf disc galaxy Segue 1
journal, November 2009

  • Xiang-Gruess, Meng; Lou, Yu-Qing; Duschl, Wolfgang J.
  • Monthly Notices of the Royal Astronomical Society: Letters, Vol. 400, Issue 1
  • DOI: 10.1111/j.1745-3933.2009.00761.x

THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION
journal, May 2009


Pre-launch estimates for GLAST sensitivity to dark matter annihilation signals
journal, July 2008


Dark Matter Searches with the Fermi Large Area Telescope
conference, January 2008

  • Meurer, Christine; Aharonian, Felix A.; Hofmann, Werner
  • HIGH ENERGY GAMMA-RAY ASTRONOMY: Proceedings of the 4th International Meeting on High Energy Gamma-Ray Astronomy, AIP Conference Proceedings
  • DOI: 10.1063/1.3076778

Measurement of the Cosmic Ray e + + e Spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
journal, May 2009


Locally Supersymmetric Grand Unification
journal, October 1982


Theories with gauge-mediated supersymmetry breaking
journal, December 1999


Out of this world supersymmetry breaking
journal, September 1999


Multidimensional mSUGRA likelihood maps
journal, January 2006


Neutralino relic density in minimal N = 1 supergravity
journal, January 1993


Cosmological relic density from minimal supergravity with implications for collider physics
journal, January 1996


The CMSSM parameter space at large tanβ
journal, June 2001


Likelihood analysis of the constrained minimal supersymmetric standard model parameter space
journal, May 2004


New cosmological and experimental constraints on the CMSSM
journal, August 2001

  • Roszkowski, Leszek; Austri, Roberto Ruiz de; Nihei, Takeshi
  • Journal of High Energy Physics, Vol. 2001, Issue 08
  • DOI: 10.1088/1126-6708/2001/08/024

Markov Chain Monte Carlo Exploration of Minimal Supergravity with Implications for Dark Matter
journal, October 2004


A Markov chain Monte Carlo analysis of the CMSSM
journal, May 2006

  • Austri, Roberto Ruiz de; Trotta, Roberto; Roszkowski, Leszek
  • Journal of High Energy Physics, Vol. 2006, Issue 05
  • DOI: 10.1088/1126-6708/2006/05/002

Nested Sampling
conference, January 2004

  • Skilling, John
  • BAYESIAN INFERENCE AND MAXIMUM ENTROPY METHODS IN SCIENCE AND ENGINEERING: 24th International Workshop on Bayesian Inference and Maximum Entropy Methods in Science and Engineering, AIP Conference Proceedings
  • DOI: 10.1063/1.1835238

The impact of priors and observables on parameter inferences in the constrained MSSM
journal, December 2008


Dark matter in the MSSM
journal, October 2009


Supersymmetry without prejudice
journal, February 2009


Selecting a model of supersymmetry breaking mediation
journal, August 2009


Predictions for supersymmetric particle masses using indirect experimental and cosmological constraints
journal, September 2008


Likelihood functions for supersymmetric observables in frequentist analyses of the CMSSM and NUHM1
journal, October 2009


Discovery potential of the next-to-minimal supergravity-motivated model
journal, September 2008


Likelihood analysis of the next-to-minimal supergravity motivated model
conference, January 2009

  • Balázs, Csaba; Carter, Daniel; Balazs, Csaba
  • 5TH INTERNATIONAL WORKSHOP ON THE DARK SIDE OF THE UNIVERSE, AIP Conference Proceedings
  • DOI: 10.1063/1.3264552

Bayesian analysis of the constrained next-to-minimal supersymmetric standard model
journal, November 2009

  • López-Fogliani, Daniel E.; Roszkowski, Leszek; de Austri, Roberto Ruiz
  • Physical Review D, Vol. 80, Issue 9
  • DOI: 10.1103/PhysRevD.80.095013

On prospects for dark matter indirect detection in the Constrained MSSM
journal, January 2009


Prospects for dark matter detection with IceCube in the context of the CMSSM
journal, August 2009

  • Trotta, Roberto; Austri, Roberto Ruiz de; Heros, Carlos Pérez de los
  • Journal of Cosmology and Astroparticle Physics, Vol. 2009, Issue 08
  • DOI: 10.1088/1475-7516/2009/08/034

Gamma Rays from Ultracompact Primordial Dark Matter Minihalos
journal, November 2009


Observability of γ rays from dark matter neutralino annihilations in the Milky Way halo
journal, August 1998


Observable monochromatic photons from cosmic photino annihilation
journal, June 1988


Full one-loop calculation of neutralino annihilation into two photons
journal, October 1997


Neutralino annihilation into a photon and a Z boson
journal, February 1998


New gamma-ray contributions to supersymmetric dark matter annihilation
journal, January 2008


DarkSUSY: computing supersymmetric dark matter properties numerically
journal, July 2004


The inner structure of ΛCDM haloes - III. Universality and asymptotic slopes
journal, April 2004


The Structure of Cold Dark Matter Halos
journal, May 1996

  • Navarro, Julio F.; Frenk, Carlos S.; White, Simon D. M.
  • The Astrophysical Journal, Vol. 462
  • DOI: 10.1086/177173

Empirical Models for Dark Matter Halos. I. Nonparametric Construction of Density Profiles and Comparison with Parametric Models
journal, January 2006

  • Merritt, David; Graham, Alister W.; Moore, Ben
  • The Astronomical Journal, Vol. 132, Issue 6
  • DOI: 10.1086/508988

The redshift dependence of the structure of massive Λ cold dark matter haloes
journal, June 2008


EGRET Observations of the Extragalactic Gamma‐Ray Emission
journal, February 1998

  • Sreekumar, P.; Bertsch, D. L.; Dingus, B. L.
  • The Astrophysical Journal, Vol. 494, Issue 2
  • DOI: 10.1086/305222

Including systematic uncertainties in confidence interval construction for Poisson statistics
journal, January 2003


Bayes in the sky: Bayesian inference and model selection in cosmology
journal, March 2008


FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: LIKELIHOODS AND PARAMETERS FROM THE WMAP DATA
journal, February 2009

  • Dunkley, J.; Komatsu, E.; Nolta, M. R.
  • The Astrophysical Journal Supplement Series, Vol. 180, Issue 2
  • DOI: 10.1088/0067-0049/180/2/306

The Design and Implementation of FFTW3
journal, February 2005


Algorithm 824: CUBPACK: a package for automatic cubature; framework description
journal, September 2003

  • Cools, Ronald; Haegemans, Ann
  • ACM Transactions on Mathematical Software, Vol. 29, Issue 3
  • DOI: 10.1145/838250.838253

FeynHiggs: a program for the calculation of the masses of the neutral -even Higgs bosons in the MSSM
journal, January 2000


SUSY Les Houches Accord 2 I/O made easy
journal, September 2009


SOFTSUSY: A program for calculating supersymmetric spectra
journal, March 2002


Representations of celestial coordinates in FITS
journal, November 2002


Works referencing / citing this record:

Indirect dark matter searches in gamma and cosmic rays
journal, March 2017


Dwarf Galaxy Annihilation and Decay Emission Profiles for dark Matter Experiments
journal, March 2015

  • Geringer-Sameth, Alex; Koushiappas, Savvas M.; Walker, Matthew
  • The Astrophysical Journal, Vol. 801, Issue 2
  • DOI: 10.1088/0004-637x/801/2/74

Constraints on cosmological dark matter annihilation from the Fermi-LAT isotropic diffuse gamma-ray measurement
journal, April 2010


Fermi LAT search for internal bremsstrahlung signatures from dark matter annihilation
journal, July 2012

  • Bringmann, Torsten; Huang, Xiaoyuan; Ibarra, Alejandro
  • Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 07
  • DOI: 10.1088/1475-7516/2012/07/054

A tentative gamma-ray line from Dark Matter annihilation at the Fermi Large Area Telescope
journal, August 2012


A global analysis of dark matter signals from 27 dwarf spheroidal galaxies using 11 years of Fermi-LAT observations
journal, February 2020

  • Hoof, Sebastian; Geringer-Sameth, Alex; Trotta, Roberto
  • Journal of Cosmology and Astroparticle Physics, Vol. 2020, Issue 02
  • DOI: 10.1088/1475-7516/2020/02/012

Signatures of dark Matter Burning in Nuclear star Clusters
journal, May 2011


Probing neutralino dark matter in the MSSM and the NMSSM with directional detection
journal, March 2012


Improved constraints on the primordial power spectrum at small scales from ultracompact minihalos
journal, June 2012


Dark matter line search using a joint analysis of dwarf galaxies with the Fermi Gamma-ray Space Telescope
journal, July 2012


A new probe of the small-scale primordial power spectrum: Astrometric microlensing by ultracompact minihalos
journal, August 2012


Bayesian implications of current LHC supersymmetry and dark matter detection searches for the constrained MSSM
journal, November 2012

  • Roszkowski, Leszek; Sessolo, Enrico Maria; Tsai, Yue-Lin Sming
  • Physical Review D, Vol. 86, Issue 9
  • DOI: 10.1103/physrevd.86.095005

Update on scalar singlet dark matter
journal, September 2013


Comprehensive search for dark matter annihilation in dwarf galaxies
journal, April 2015

  • Geringer-Sameth, Alex; Koushiappas, Savvas M.; Walker, Matthew G.
  • Physical Review D, Vol. 91, Issue 8
  • DOI: 10.1103/physrevd.91.083535

Constraining Dark Matter Models from a Combined Analysis of Milky Way Satellites with the Fermi Large Area Telescope
journal, December 2011


Indication of Gamma-Ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II
journal, August 2015


Wimp searches with gamma rays in the Fermi era: Challenges, methods and results
journal, December 2015

  • Conrad, J.; Cohen-Tanugi, J.; Strigari, L. E.
  • Journal of Experimental and Theoretical Physics, Vol. 121, Issue 6
  • DOI: 10.1134/s1063776115130099

Global fits of GUT-scale SUSY models with GAMBIT
journal, December 2017


ColliderBit: a GAMBIT module for the calculation of high-energy collider observables and likelihoods
journal, November 2017


GAMBIT: the global and modular beyond-the-standard-model inference tool: Addendum for GAMBIT 1.1: Mathematica backends, SUSYHD interface and updated likelihoods
journal, February 2018


Combined collider constraints on neutralinos and charginos
journal, May 2019


Pippi — Painless parsing, post-processing and plotting of posterior and likelihood samples
journal, November 2012


GAMBIT: the global and modular beyond-the-standard-model inference tool
journal, November 2017


Indication of Gamma-ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II
text, January 2018


GAMBIT: the global and modular beyond-the-standard-model inference tool
text, January 2017

  • Athron, Peter; Balazs, Csaba; Bringmann, Torsten
  • Deutsches Elektronen-Synchrotron, DESY, Hamburg
  • DOI: 10.3204/pubdb-2018-00527

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