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Supersymmetry in Light of 1/fb of LHC Data

We update previous frequentist analyses of the CMSSM and NUHM1 parameter spaces to include the public results of searches for supersymmetric signals using ~1 /fb of LHC data recorded by ATLAS and CMS and ~0.3/fb of data recorded by LHCb in addition to electroweak precision and B-physics observables....

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Detalles Bibliográficos
Autores principales: Buchmueller, O., Cavanaugh, R., De Roeck, A., Dolan, M.J., Ellis, J.R., Flacher, H., Heinemeyer, S., Isidori, G., Santos, D.Martinez, Olive, K.A., Rogerson, S., Ronga, F.J., Weiglein, G.
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:https://dx.doi.org/10.1140/epjc/s10052-012-1878-4
http://cds.cern.ch/record/1391061
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author Buchmueller, O.
Cavanaugh, R.
De Roeck, A.
Dolan, M.J.
Ellis, J.R.
Flacher, H.
Heinemeyer, S.
Isidori, G.
Santos, D.Martinez
Olive, K.A.
Rogerson, S.
Ronga, F.J.
Weiglein, G.
author_facet Buchmueller, O.
Cavanaugh, R.
De Roeck, A.
Dolan, M.J.
Ellis, J.R.
Flacher, H.
Heinemeyer, S.
Isidori, G.
Santos, D.Martinez
Olive, K.A.
Rogerson, S.
Ronga, F.J.
Weiglein, G.
author_sort Buchmueller, O.
collection CERN
description We update previous frequentist analyses of the CMSSM and NUHM1 parameter spaces to include the public results of searches for supersymmetric signals using ~1 /fb of LHC data recorded by ATLAS and CMS and ~0.3/fb of data recorded by LHCb in addition to electroweak precision and B-physics observables. We also include the constraints imposed by the cosmological dark matter density and the XENON100 search for spin-independent dark matter scattering. The LHC data set includes ATLAS and CMS searches for jets + missing ET events and for the heavier MSSM Higgs bosons, and the upper limits on B_s to mu^+ mu^- from LHCb and CMS. The absences of jets + missing ET signals in the LHC data favour heavier mass spectra than in our previous analyses of the CMSSM and NUHM1, which may be reconciled with (g-2)_mu if tan beta ~ 40, a possibility that is however under pressure from heavy Higgs searches and the upper limits on B_s to mu^+ mu^-. As a result, the p-value for the CMSSM fit is reduced to ~ 15 (38)%, and that for the NUHM1 to ~ 16 (38)%, to be compared with ~ 9 (49)% for the Standard Model limit of the CMSSM for the same set of observables (dropping (g-2)_mu), ignoring the dark matter relic density in both cases. We discuss the sensitivities of the fits to the (g-2)_mu and b to s gamma constraints, contrasting fits with and without the (g-2)_mu constraint, and combining the theoretical and experimental errors for b to s gamma linearly or in quadrature. We present predictions for m_gluino, B_s to mu^+ mu^-, M_h and M_A, and update predictions for spin-independent dark matter scattering, stressing again the importance of taking into account the uncertainty in the pi-nucleon sigma term, Sigma_{pi N}. Finally, we present predictions based on our fits for the likely thresholds for sparticle pair production in e^+e^- collisions in the CMSSM and NUHM1.
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spelling cern-13910612023-06-16T02:59:29Zdoi:10.1140/epjc/s10052-012-1878-4http://cds.cern.ch/record/1391061engBuchmueller, O.Cavanaugh, R.De Roeck, A.Dolan, M.J.Ellis, J.R.Flacher, H.Heinemeyer, S.Isidori, G.Santos, D.MartinezOlive, K.A.Rogerson, S.Ronga, F.J.Weiglein, G.Supersymmetry in Light of 1/fb of LHC DataParticle Physics - PhenomenologyWe update previous frequentist analyses of the CMSSM and NUHM1 parameter spaces to include the public results of searches for supersymmetric signals using ~1 /fb of LHC data recorded by ATLAS and CMS and ~0.3/fb of data recorded by LHCb in addition to electroweak precision and B-physics observables. We also include the constraints imposed by the cosmological dark matter density and the XENON100 search for spin-independent dark matter scattering. The LHC data set includes ATLAS and CMS searches for jets + missing ET events and for the heavier MSSM Higgs bosons, and the upper limits on B_s to mu^+ mu^- from LHCb and CMS. The absences of jets + missing ET signals in the LHC data favour heavier mass spectra than in our previous analyses of the CMSSM and NUHM1, which may be reconciled with (g-2)_mu if tan beta ~ 40, a possibility that is however under pressure from heavy Higgs searches and the upper limits on B_s to mu^+ mu^-. As a result, the p-value for the CMSSM fit is reduced to ~ 15 (38)%, and that for the NUHM1 to ~ 16 (38)%, to be compared with ~ 9 (49)% for the Standard Model limit of the CMSSM for the same set of observables (dropping (g-2)_mu), ignoring the dark matter relic density in both cases. We discuss the sensitivities of the fits to the (g-2)_mu and b to s gamma constraints, contrasting fits with and without the (g-2)_mu constraint, and combining the theoretical and experimental errors for b to s gamma linearly or in quadrature. We present predictions for m_gluino, B_s to mu^+ mu^-, M_h and M_A, and update predictions for spin-independent dark matter scattering, stressing again the importance of taking into account the uncertainty in the pi-nucleon sigma term, Sigma_{pi N}. Finally, we present predictions based on our fits for the likely thresholds for sparticle pair production in e^+e^- collisions in the CMSSM and NUHM1.We update previous frequentist analyses of the CMSSM and NUHM1 parameter spaces to include the public results of searches for supersymmetric signals using ~1 /fb of LHC data recorded by ATLAS and CMS and ~0.3/fb of data recorded by LHCb in addition to electroweak precision and B-physics observables. We also include the constraints imposed by the cosmological dark matter density and the XENON100 search for spin-independent dark matter scattering. The LHC data set includes ATLAS and CMS searches for jets + missing ET events and for the heavier MSSM Higgs bosons, and the upper limits on B_s to mu^+ mu^- from LHCb and CMS. The absences of jets + missing ET signals in the LHC data favour heavier mass spectra than in our previous analyses of the CMSSM and NUHM1, which may be reconciled with (g-2)_mu if tan beta ~ 40, a possibility that is however under pressure from heavy Higgs searches and the upper limits on B_s to mu^+ mu^-. As a result, the p-value for the CMSSM fit is reduced to ~ 15 (38)%, and that for the NUHM1 to ~ 16 (38)%, to be compared with ~ 9 (49)% for the Standard Model limit of the CMSSM for the same set of observables (dropping (g-2)_mu), ignoring the dark matter relic density in both cases. We discuss the sensitivities of the fits to the (g-2)_mu and b to s gamma constraints, contrasting fits with and without the (g-2)_mu constraint, and combining the theoretical and experimental errors for b to s gamma linearly or in quadrature. We present predictions for m_gluino, B_s to mu^+ mu^-, M_h and M_A, and update predictions for spin-independent dark matter scattering, stressing again the importance of taking into account the uncertainty in the pi-nucleon sigma term, Sigma_{pi N}. Finally, we present predictions based on our fits for the likely thresholds for sparticle pair production in e^+e^- collisions in the CMSSM and NUHM1.arXiv:1110.3568KCL-PH-TH-2011-28LCTS-2011-14CERN-PH-TH-2011-220DCPT-11-108IPPP-11-54FTPI-MINN-11-23UMN-TH-3013-11FERMILAB-PUB-12-901-CMSDESY-11-161KCL-PH-TH-2011-28LCTS-2011-14CERN-PH-TH-2011-220DCPT-11-108DESY 11-161IPPP-11-54FTPI-MINN-11-23UMN-TH-3013-11oai:cds.cern.ch:13910612011-10-18
spellingShingle Particle Physics - Phenomenology
Buchmueller, O.
Cavanaugh, R.
De Roeck, A.
Dolan, M.J.
Ellis, J.R.
Flacher, H.
Heinemeyer, S.
Isidori, G.
Santos, D.Martinez
Olive, K.A.
Rogerson, S.
Ronga, F.J.
Weiglein, G.
Supersymmetry in Light of 1/fb of LHC Data
title Supersymmetry in Light of 1/fb of LHC Data
title_full Supersymmetry in Light of 1/fb of LHC Data
title_fullStr Supersymmetry in Light of 1/fb of LHC Data
title_full_unstemmed Supersymmetry in Light of 1/fb of LHC Data
title_short Supersymmetry in Light of 1/fb of LHC Data
title_sort supersymmetry in light of 1/fb of lhc data
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1140/epjc/s10052-012-1878-4
http://cds.cern.ch/record/1391061
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