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Supersymmetry in light of 1/fb of LHC data

Buchmueller, O. ; Cavanaugh, R. ; De Roeck, A. ; Dolan, M. J. ; Ellis, J. R. ; Flächer, H. ; Heinemeyer, S. ; Isidori, G. ; Martínez Santos, D. ; Olive, K. A. ; Rogerson, S. ; Ronga, F. J. ; Weiglein, G.

The European physical journal. C, Particles and fields, 2012-02, Vol.72 (2), p.1-20, Article 1878 [Periódico revisado por pares]

Berlin/Heidelberg: Springer-Verlag

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Título:
Supersymmetry in light of 1/fb of LHC data
Autor: Buchmueller, O. ; Cavanaugh, R. ; De Roeck, A. ; Dolan, M. J. ; Ellis, J. R. ; Flächer, H. ; Heinemeyer, S. ; Isidori, G. ; Martínez Santos, D. ; Olive, K. A. ; Rogerson, S. ; Ronga, F. J. ; Weiglein, G.
Assuntos: Astronomical models ; Astronomy ; Astrophysics and Cosmology ; Bosons ; Cosmology ; Dark matter ; Density ; Elementary Particles ; Exact sciences and technology ; Hadrons ; Heavy Ions ; Higgs bosons ; Large Hadron Collider ; Mass spectra ; Measurement Science and Instrumentation ; Nuclear Energy ; Nuclear Physics ; Nucleons ; Pair production ; Physics ; Physics and Astronomy ; Quadratures ; Quantum Field Theories ; Quantum Field Theory ; Regular Article - Theoretical Physics ; Scattering ; Searching ; Solenoids ; String Theory ; Supersymmetry ; The physics of elementary particles and fields
É parte de: The European physical journal. C, Particles and fields, 2012-02, Vol.72 (2), p.1-20, Article 1878
Descrição: 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 + events and for the heavier MSSM Higgs bosons, and the upper limits on BR( B s → μ + μ − ) from LHCb and CMS. The absences of jets + 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) μ if tan β ∼40, a possibility that is, however, under pressure from heavy Higgs searches and the upper limits on BR( B s → μ + μ − ). 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) μ ), ignoring the dark matter relic density. We discuss the sensitivities of the fits to the ( g −2) μ and BR( b → sγ ) constraints, contrasting fits with and without the ( g −2) μ constraint, and combining the theoretical and experimental errors for BR( b → sγ ) linearly or in quadrature. We present predictions for , BR( B s → μ + μ − ), M h and M A , and update predictions for spin-independent dark matter scattering, incorporating the uncertainty in the π -nucleon σ term Σ πN . 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.
Editor: Berlin/Heidelberg: Springer-Verlag
Idioma: Inglês

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Supersymmetry in light of 1/fb of LHC data

Buchmueller, O. ; Cavanaugh, R. ; De Roeck, A. ; Dolan, M. J. ; Ellis, J. R. ; Flächer, H. ; Heinemeyer, S. ; Isidori, G. ; Martínez Santos, D. ; Olive, K. A. ; Rogerson, S. ; Ronga, F. J. ; Weiglein, G.

Berlin/Heidelberg: Springer-Verlag

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