1.
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The NUHM2 after LHC Run 1
/ Buchmueller, O. (Imperial Coll., London) ; Cavanaugh, R. (Fermilab ; Illinois U., Chicago) ; Citron, M. (Imperial Coll., London) ; De Roeck, A. (Antwerp U. ; CERN) ; Dolan, M.J. (SLAC) ; Ellis, J.R. (King's Coll. London ; CERN) ; Flaecher, H. (Bristol U.) ; Heinemeyer, S. (Cantabria U., Santander) ; Malik, S. (Rockefeller U.) ; Marrouche, J. (Imperial Coll., London) et al.
We make a frequentist analysis of the parameter space of the NUHM2, in which the soft supersymmetry (SUSY)-breaking contributions to the masses of the two Higgs multiplets, $m^2_{H_{u,d}}$, vary independently from the universal soft SUSY-breaking contributions $m^2_0$ to the masses of squarks and sleptons. Our analysis uses the MultiNest sampling algorithm with over $4 \times 10^8$ points to sample the NUHM2 parameter space. [...]
arXiv:1408.4060; KCL-PH-TH-2014-33; LCTS-2014-29; CERN-PH-TH-2014-145; DESY-14-144; FERMILAB-PUB-14-605-CMS; FTPI-MINN-14-39; UMN-TH-3344-14; SLAC-PUB-16051; KCL-PH-TH-2014-33; LCTS-2014-29; CERN-PH-TH-2014-145; DESY 14-144; FTPI-MINN-14-39; UMN-TH-3344-14; SLAC-PUB-16051.-
2014-12-17 - 20 p.
- Published in : Eur. Phys. J. C 74 (2014) 3212
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: fermilab-pub-14-605-cms - PDF; arXiv:1408.4060 - PDF; Springer Open Access article: PDF; External link: Fermilab Library Server (fulltext available)
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2.
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The pMSSM10 after LHC Run 1
/ de Vries, K.J. (Imperial Coll., London) ; Bagnaschi, E.A. (DESY) ; Buchmueller, O. (Imperial Coll., London) ; Cavanaugh, R. (Fermilab ; Illinois U., Chicago) ; Citron, M. (Imperial Coll., London) ; De Roeck, A. (CERN ; Antwerp U.) ; Dolan, M.J. (SLAC ; Melbourne U.) ; Ellis, J.R. (King's Coll. London ; CERN) ; Flächer, H. (Bristol U.) ; Heinemeyer, S. (Cantabria Inst. of Phys.) et al.
We present a frequentist analysis of the parameter space of the pMSSM10, in which the following 10 soft SUSY-breaking parameters are specified independently at the mean scalar top mass scale Msusy = Sqrt[M_stop1 M_stop2]: the gaugino masses M_{1,2,3}, the 1st-and 2nd-generation squark masses M_squ1 = M_squ2, the third-generation squark mass M_squ3, a common slepton mass M_slep and a common trilinear mixing parameter A, the Higgs mixing parameter mu, the pseudoscalar Higgs mass M_A and tan beta. We use the MultiNest sampling algorithm with 1.2 x 10^9 points to sample the pMSSM10 parameter space. [...]
arXiv:1504.03260; KCL-PH-TH-2015-15; LCTS-2015-07; CERN-PH-TH-2015-066; DESY-15-046; FTPI-MINN-15-13; UMN-TH-3427-15; SLAC-PUB-16245; FERMILAB-PUB-15-100-CMS; KCL-PH-TH-2015-15; LCTS-2015-07; CERN-PH-TH-2015-066; DESY 15-046; FTPI-MINN-15-13; UMN-TH-3427-15; SLAC-PUB-16245; FERMILAB-PUB-15-100-CMS.-
Geneva : CERN, 2015-09-15 - 47 p.
- Published in : Eur. Phys. J. C 75 (2015) 422
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Fermilab Library Server (fulltext available)
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3.
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Varying the Universality of Supersymmetry-Breaking Contributions to MSSM Higgs Boson Masses
/ Ellis, John R. (CERN) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Sandick, Pearl (Minnesota U., Theor. Phys. Inst.)
We consider the minimal supersymmetric extension of the Standard Model (MSSM) with varying amounts of non-universality in the soft supersymmetry-breaking contributions to the Higgs scalar masses. In addition to the constrained MSSM (CMSSM) in which these are universal with the soft supersymmetry-breaking contributions to the squark and slepton masses at the input GUT scale, we consider scenarios in which both the Higgs scalar masses are non-universal by the same amount (NUHM1), and scenarios in which they are independently non-universal (NUHM2). [...]
arXiv:0805.2343; CERN-PH-TH-2008-106; UMN-TH-2645-08; FTPI-MINN-08-14; CERN-PH-TH-2008-106; FTPI-MINN-2008-14; UMN-TH-2008-2645.-
Geneva : CERN, 2008 - 39 p.
- Published in : Phys. Rev. D 78 (2008) 075012
APS Published version, local copy: PDF; Fulltext: PDF; External link: Fulltext
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4.
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Likelihood Functions for Supersymmetric Observables in Frequentist Analyses of the CMSSM and NUHM1
/ Buchmueller, O. (Imperial Coll., London) ; Cavanaugh, R. (Fermilab ; Illinois U., Chicago) ; De Roeck, A. (CERN ; Antwerp U.) ; Ellis, J.R. (CERN) ; Flacher, H. (Rochester U.) ; Heinemeyer, S. (Cantabria Inst. of Phys.) ; Isidori, G. (Frascati) ; Olive, K.A. (Minnesota U., Theor. Phys. Inst.) ; Ronga, F.J. (Zurich, ETH) ; Weiglein, G. (Durham U., IPPP)
On the basis of frequentist analyses of experimental constraints from electroweak precision data, g-2, B physics and cosmological data, we investigate the parameters of the constrained MSSM (CMSSM) with universal soft supersymmetry-breaking mass parameters, and a model with common non-universal Higgs masses (NUHM1). We present chi^2 likelihood functions for the masses of supersymmetric particles and Higgs bosons, as well as b to s gamma, b to mu mu and the spin-independent dark matter scattering cross section. [...]
arXiv:0907.5568; CERN-PH-TH-2009-124; FERMILAB-PUB-09-864; CERN-PH-TH-2009-124.-
Geneva : CERN, 2009 - 34 p.
- Published in : Eur. Phys. J. C 64 (2009) 391-415
Fulltext: 10052_2009_1159_OnlinePDF - PDF; fermilab-pub-09-864 - PDF; External link: Fermilab Library Server (fulltext available)
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5.
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The CMSSM and NUHM1 in Light of 7 TeV LHC, $B_s \to \mu^+\mu^-$ and XENON100 Data
/ Buchmueller, O. (Imperial Coll., London) ; Cavanaugh, R. (Chicago U. ; Fermilab) ; Citron, M. (Imperial Coll., London) ; De Roeck, A. (Antwerp U. ; CERN) ; Dolan, M.J. (Durham U., IPPP) ; Ellis, J.R. (CERN ; King's Coll. London) ; Flacher, H. (Bristol U.) ; Heinemeyer, S. (Cantabria Inst. of Phys.) ; Isidori, G. (CERN ; INFN, Italy) ; Marrouche, J. (Imperial Coll., London) et al.
We make a frequentist analysis of the parameter space of the CMSSM and NUHM1, using a Markov Chain Monte Carlo (MCMC) with 95 (221) million points to sample the CMSSM (NUHM1) parameter spaces. Our analysis includes the ATLAS search for supersymmetric jets + MET signals using ~ 5/fb of LHC data at 7 TeV, which we apply using PYTHIA and a Delphes implementation that we validate in the relevant parameter regions of the CMSSM and NUHM1. [...]
KCL-PH-TH-2012-26; LCTS-2012-13; CERN-PH-TH-2012-164; DCPT-12-82; DESY-12-115; IPPP-12-41; FTPI-MINN-12-20; UMN-TH-3106-12; FERMILAB-PUB-12-868-T; arXiv:1207.7315; KCL-PH-TH-2012-26; LCTS-2012-13; CERN-PH-TH-2012-164; DCPT-12-82; DESY 12-115; IPPP-12-41; FTPI-MINN-12-20; UMN-TH-3106-12.-
2012-11-30 - 27 p.
- Published in : Eur. Phys. J. C 72 (2012) 2243
Fulltext: PDF; Preprint: PDF;
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6.
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The CMSSM and NUHM1 after LHC Run 1
/ Buchmueller, O. (Imperial Coll., London) ; Cavanaugh, R. (Fermilab ; Illinois U., Chicago) ; De Roeck, A. (CERN ; Antwerp U.) ; Dolan, M.J. (SLAC) ; Ellis, J.R. (King's Coll. London ; CERN) ; Flacher, H. (Bristol U.) ; Heinemeyer, S. (Cantabria Inst. of Phys.) ; Isidori, G. (Frascati ; CERN) ; Marrouche, J. (Imperial Coll., London) ; Martinez Santos, D. (NIKHEF, Amsterdam ; Vrije U., Amsterdam) et al.
We analyze the impact of data from the full Run 1 of the LHC at 7 and 8 TeV on the CMSSM with mu > 0 and < 0 and the NUHM1 with mu > 0, incorporating the constraints imposed by other experiments such as precision electroweak measurements, flavour measurements, the cosmological density of cold dark matter and the direct search for the scattering of dark matter particles in the LUX experiment. We use the following results from the LHC experiments: ATLAS searches for events with MET accompanied by jets with the full 7 and 8 TeV data, the ATLAS and CMS measurements of the mass of the Higgs boson, the CMS searches for heavy neutral Higgs bosons and a combination of the LHCb and CMS measurements of B_s to mu+mu- and B_d to mu+mu-. [...]
arXiv:1312.5250; KCL-PH-TH-2013-42; LCTS-2013-29; CERN-PH-TH-2013-297; DESY-13-250; UMN-TH-3316-13; SLAC-PUB-15861; FERMILAB-PUB-13-668-T; FTPI-MINN-13-43; KCL-PH-TH-2013-42; LCTS-2013-29; CERN-PH-TH-2013-297; DESY 13-250; FTPI-MINN-13-43; UMN-TH-3316-13; SLAC-PUB-15861.-
2014-06-13 - 28 p.
- Published in : Eur. Phys. J. C 74 (2014) 2922
Article from SCOAP3: PDF; Fulltext: fermilab-pub-13-668-t - PDF; arXiv:1312.5250 - PDF; Springer Open Access article: PDF; External link: Fermilab Library Server (fulltext available)
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7.
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Update on the Direct Detection of Dark Matter in MSSM Models with Non-Universal Higgs Masses
/ Ellis, John (CERN) ; Olive, Keith A (Minnesota U.) ; Sandick, Pearl (Texas U.)
We discuss the possibilities for the direct detection of neutralino dark matter via elastic scattering in variants of the minimal supersymmetric extension of the Standard Model (MSSM) with non-universal supersymmetry-breaking contributions to the Higgs masses, which may be either equal (NUHM1) or independent (NUHM2). We compare the ranges found in the NUHM1 and NUHM2 with that found in the MSSM with universal supersymmetry-breaking contributions to all scalar masses, the CMSSM. [...]
arXiv:0905.0107; CERN-PH-TH-2009-053; UMN-TH-2746-09; FTPI-MINN-09-18; UTTG-03-09; TCC-017-09.-
Geneva : CERN, 2009 - 35 p.
- Published in : New J. Phys. 11 (2009) 105015
External link: Preprint
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8.
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Supersymmetric Dark Matter after LHC Run 1
/ Bagnaschi, E.A. (DESY) ; Buchmueller, O. (Imperial Coll., London) ; Cavanaugh, R. (Fermilab ; Illinois U., Chicago) ; Citron, M. (Imperial Coll., London) ; De Roeck, A. (CERN ; Antwerp U.) ; Dolan, M.J. (SLAC ; Melbourne U.) ; Ellis, J.R. (King's Coll. London ; CERN) ; Flächer, H. (Bristol U.) ; Heinemeyer, S. (Cantabria Inst. of Phys.) ; Isidori, G. (Zurich U.) et al.
Different mechanisms operate in various regions of the MSSM parameter space to bring the relic density of the lightest neutralino, neutralino_1, assumed here to be the LSP and thus the Dark Matter (DM) particle, into the range allowed by astrophysics and cosmology. These mechanisms include coannihilation with some nearly-degenerate next-to-lightest supersymmetric particle (NLSP) such as the lighter stau (stau_1), stop (stop_1) or chargino (chargino_1), resonant annihilation via direct-channel heavy Higgs bosons H/A, the light Higgs boson h or the Z boson, and enhanced annihilation via a larger Higgsino component of the LSP in the focus-point region. [...]
arXiv:1508.01173; KCL-PH-TH-2015-33; LCTS-2015-24; CERN-PH-TH-2015-167; DESY-15-132; FTPI-MINN-15-36; UMN-TH-3445-15; SLAC-PUB-16350; FERMILAB-PUB-15-333-CMS; KCL-PH-TH-2015-33; LCTS-2015-24; CERN-PH-TH-2015-167; DESY 15-132; FTPI-MINN-15-36; UMN-TH-3445-15; SLAC-PUB-16350; FERMILAB-PUB-15-333-CMS.-
Geneva : CERN, 2015-10-23 - 16 p.
- Published in : Eur. Phys. J. C 75 (2015) 500
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Fermilab Library Server (fulltext available)
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9.
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Implications of Improved Higgs Mass Calculations for Supersymmetric Models
/ Buchmueller, O. (Imperial Coll., London) ; Dolan, M.J. (SLAC) ; Ellis, J. (King's Coll. London ; CERN) ; Hahn, T. (Munich, Max Planck Inst.) ; Heinemeyer, S. (Cantabria Inst. of Phys.) ; Hollik, W. (Munich, Max Planck Inst.) ; Marrouche, J. (Imperial Coll., London) ; Olive, K.A. (Minnesota U., Theor. Phys. Inst.) ; Rzehak, H. (Freiburg U.) ; de Vries, K.J. (Imperial Coll., London) et al.
We discuss the allowed parameter spaces of supersymmetric scenarios in light of improved Higgs mass predictions provided by FeynHiggs 2.10.0. The Higgs mass predictions combine Feynman-diagrammatic results with a resummation of leading and subleading logarithmic corrections from the stop/top sector, which yield a significant improvement in the region of large stop masses. [...]
arXiv:1312.5233; KCL-PH-TH-2013-41; LCTS-2013-28; CERN-PH-TH-2013-294; MPP-2013-313; DESY-13-249; FR-PHENO-2013-019; UMN-TH-3315-13; FTPI-MINN-13-42; DESY~13-249; SLAC-PUB-15855; KCL-PH-TH-2013-41; LCTS-2013-28; CERN-PH-TH-2013-294; MPP-2013-313; DESY-13-249; FR-PHENO-2013-019; UMN-TH-3315-13; FTPI-MINN-13-42; SLAC-PUB-15855.-
2014-03-18 - 14 p.
- Published in : Eur. Phys. J. C 74 (2014) 2809
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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10.
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The Supersymmetric Parameter Space in Light of B-physics Observables and Electroweak Precision Data
/ Ellis, Jonathan Richard (CERN) ; Heinemeyer, S (Instituto de Fisica de Cantabria (CSIC-UC), Santander) ; Olive, K A (William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis) ; Weber, A M (Max-Planck, Munich) ; Weiglein, G (IPPP, University of Durham)
Indirect information about the possible scale of supersymmetry (SUSY) breaking is provided by B-physics observables (BPO) as well as electroweak precision observables (EWPO). We combine the constraints imposed by recent measurements of the BPO BR(b -> s gamma), BR(B_s -> mu^+ mu^-), BR(B_u -> tau nu_tau) and Delta M_{B_s} with those obtained from the experimental measurements of the EWPO M_W, sin^2 theta_eff, Gamma_Z, (g-2)_mu and M_h, incorporating the latest theoretical calculations of these observables within the Standard Model and supersymmetric extensions. [...]
arXiv:0706.0652; CERN-PH-TH-2007-087; DCPT-07-50; IPPP-07-25; MPP-2007-64; UMN-TH-2606-07; FTPI-MINN-07-19.-
2007 - 48 p.
- Published in : JHEP 08 (2007) 083
SISSA/IOP Open Access article: PDF; External link: Fulltext
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