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Phenomenological Indications of the Scale of Supersymmetry
/ Ellis, John R. (CERN) ; Heinemeyer, Sven (Zaragoza U.) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Weiglein, Georg (Durham U., IPPP)
Electroweak precision measurements can provide indirect information about the possible scale of supersymmetry already at the present level of accuracy. We update the present-day sensitivities of precision data using the new experimental top-quark mass, m_t = 172.7 \pm 2.9 GeV, within the constrained minimal supersymmetric extension of the Standard Model (CMSSM), in which there are three independent soft supersymmetry-breaking parameters m_{1/2}, m_0 and A_0. [...]
hep-ph/0602220; CERN-PH-TH-2006-028; DCPT-06-24; IPPP-06-12; UMN-TH-2432-06; FTPI-MINN-06-05; CERN-PH-TH-2006-028; DCPT-2006-24; IPPP-2006-12; UMN-TH-2432.-
Geneva : CERN, 2006 - 46 p.
- Published in : JHEP 05 (2006) 005
Access to fulltext document: PDF; Fulltext: PDF; SISSA/IOP Published version, local copy: PDF; External link: Preprint
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Frequentist Analysis of the Parameter Space of Minimal Supergravity
/ Buchmueller, O. (Imperial Coll., London) ; Cavanaugh, R. (Fermilab ; Illinois U., Chicago) ; Colling, D. (Imperial Coll., London) ; De Roeck, A. (CERN ; Antwerp U.) ; Dolan, M.J. (Durham U., IPPP) ; Ellis, J.R. (CERN ; King's Coll. London) ; Flacher, H. (Rochester U.) ; Heinemeyer, S. (Cantabria Inst. of Phys.) ; Olive, K.A. (Minnesota U., Theor. Phys. Inst.) ; Rogerson, S. (Imperial Coll., London) et al.
We make a frequentist analysis of the parameter space of minimal supergravity (mSUGRA), in which, as well as the gaugino and scalar soft supersymmetry-breaking parameters being universal, there is a specific relation between the trilinear, bilinear and scalar supersymmetry-breaking parameters, A_0 = B_0 + m_0, and the gravitino mass is fixed by m_{3/2} = m_0. We also consider a more general model, in which the gravitino mass constraint is relaxed (the VCMSSM). [...]
arXiv:1011.6118; CERN-PH-TH-2010-169; DCPT-10-196; DESY-10-211; IPPP-10-98; FTPI-MINN-10-34; KCL-PH-TH-2010-34; UMN-TH-2928-10; FERMILAB-PUB-10-734-CMS; CERN-PH-TH-2010-169; DCPT-10-196; DESY 10-211; IPPP-10-98; FTPI-MINN-10-34; KCL-PH-TH-2010-34; UMN-TH-2928-10.-
2011 - 18 p.
- Published in : Eur. Phys. J. C 71 (2011) 1583
Fulltext: PDF; Preprint: PDF;
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WMAP-Compliant Benchmark Surfaces for MSSM Higgs Bosons
/ Ellis, J. (CERN) ; Hahn, T. (Munich, Max Planck Inst.) ; Heinemeyer, S. (Cantabria U., Santander) ; Olive, K.A. (Minnesota U.) ; Weiglein, G. (Durham U., IPPP)
We explore `benchmark surfaces' suitable for studying the phenomenology of Higgs bosons in the minimal supersymmetric extension of the Standard Model (MSSM), which are chosen so that the supersymmetric relic density is generally compatible with the range of cold dark matter density preferred by WMAP and other observations. These benchmark surfaces are specified assuming that gaugino masses m_{1/2}, soft trilinear supersymmetry-breaking parameters A_0 and the soft supersymmetry-breaking contributions m_0 to the squark and slepton masses are universal, but not those associated with the Higgs multiplets (the NUHM framework). [...]
arXiv:0709.0098; CERN-PH-TH-2007-138; DCPT-07-102; IPPP-07-51; MPP-2007-117; UMN-TH-2615-07; FTPI-MINN-07-25; CERN-PH-TH-2007-138; DCPT-07-102; IPPP-07-51; MPP-2007-117; UMN-TH-2615-07; FTPI-MINN-07-25.-
2007 - 42 p.
- Published in : JHEP 10 (2007) 092
Fulltext: arXiv:0709.0098 - PDF; JHEP10(2007)092 - PDF; SISSA/IOP Open Access article: PDF; External link: Preprint
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On the Higgs Mass in the CMSSM
/ Ellis, John R. (CERN) ; Nanopoulos, Dimitri V. (Texas A-M ; HARC, Woodlands ; Athens Academy) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Santoso, Yudi (Victoria U. ; Perimeter Inst. Theor. Phys.)
We estimate the mass of the lightest neutral Higgs boson h in the minimal supersymmetric extension of the Standard Model with universal soft supersymmetry-breaking masses (CMSSM), subject to the available accelerator and astrophysical constraints. For m_t = 174.3 GeV, we find that 114 GeV < m_h < 127 GeV and a peak in the tan beta distribution simeq 55. [...]
hep-ph/0509331; CERN-PH-TH-2005-173; UMN-TH-2416-05; FTPI-MINN-05-43; ACT-09-05; MIFP-05-23; ACT-2005-09; CERN-PH-TH-2005-173; FTPI-MINN-2005-43; UMN-TH-2416.-
Houston, TX : Houston Univ. Adv. Res. Cent. The Woodlands, 2006 - 14 p.
- Published in : Phys. Lett. B 633 (2006) 583-590
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Exploration of the MSSM with Non-Universal Higgs Masses
/ Ellis, Jonathan Richard (CERN) ; Falk, T ; Olive, Keith A ; Santoso, Y
We explore the parameter space of the minimal supersymmetric extension of the Standard Model (MSSM), allowing the soft supersymmetry-breaking masses of the Higgs multiplets, m_{1,2}, to be non-universal (NUHM). Compared with the constrained MSSM (CMSSM) in which m_{1,2} are required to be equal to the soft supersymmetry-breaking masses m_0 of the squark and slepton masses, the Higgs mixing parameter mu and the pseudoscalar Higgs mass m_A, which are calculated in the CMSSM, are free in the NUHM model. [...]
hep-ph/0210205; CERN-TH-2002-238; TPI-MINN-2002-42; UMN-TH-2113.-
Geneva : CERN, 2003 - 92 p.
- Published in : Nucl. Phys. B 652 (2003) 259-347
Access to fulltext document: PDF; External link: hep-ph/0210205 PDF
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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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Indirect Sensitivities to the Scale of Supersymmetry
/ Ellis, John R. (CERN) ; Heinemeyer, Sven (CERN) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Weiglein, Georg (Durham U., IPPP)
Precision measurements, now and at a future linear electron-positron collider (ILC), can provide indirect information about the possible scale of supersymmetry. We illustrate the present-day and possible future ILC sensitivities within the constrained minimal supersymmetric extension of the Standard Model (CMSSM), in which there are three independent soft supersymmetry-breaking parameters m_{1/2}, m_0 and A_0. [...]
hep-ph/0411216; CERN-PH-TH-2004-220; DCPT-04-146; IPPP-04-73; UMN-TH-2326-04; FTPI-MINN-04-40; CERN-PH-TH-2004-220; DCPT-2004-146; IPPP-2004-73; UMN-TH-2326.-
Geneva : CERN, 2005 - 45 p.
- Published in : JHEP 02 (2005) 013
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Very Constrained Minimal Supersymmetric Standard Models
/ Ellis, John R. (CERN) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Santoso, Yudi (Minnesota U., Theor. Phys. Inst.) ; Spanos, Vassilis C. (Minnesota U., Theor. Phys. Inst.)
We consider very constrained versions of the minimal supersymmetric extension of the Standard Model (VCMSSMs) which, in addition to constraining the scalar masses m_0 and gaugino masses m_{1/2} to be universal at some input scale, impose relations between the trilinear and bilinear soft supersymmetry breaking parameters A_0 and B_0. These relations may be linear, as in simple minimal supergravity models, or nonlinear, as in the Giudice-Masiero mechanism for generating the Higgs-mixing mu term. [...]
hep-ph/0405110; CERN-PH-TH-2004-069; UMN-TH-2307-04; FTPI-MINN-04-18; CERN-PH-TH-2004-069; CERN-TH-2004-069-[SIC!]; FTPI-MINN-2004-18; UMN-TH-2307.-
Geneva : CERN, 2004 - 26 p.
- Published in : Phys. Rev. D 70 (2004) 055005
APS Published version, local copy: PDF; Access to fulltext document: PDF; Fulltext: PDF; External link: Preprint
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10.
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Direct Detection of Dark Matter in the MSSM with Non-Universal Higgs Masses
/ Ellis, John R. (CERN) ; Ferstl, Andy (Winona State U.) ; Olive, Keith A. (Minnesota U., Theor. Phys. Inst.) ; Santoso, Yudi (Minnesota U., Theor. Phys. Inst.)
We calculate dark matter scattering rates in the minimal supersymmetric extension of the Standard Model (MSSM), allowing the soft supersymmetry-breaking masses of the Higgs multiplets, m_{1,2}, to be non-universal (NUHM). Compared with the constrained MSSM (CMSSM) in which m_{1,2} are required to be equal to the soft supersymmetry-breaking masses m_0 of the squark and slepton masses, we find that the elastic scattering cross sections may be up to two orders of magnitude larger than values in the CMSSM for similar LSP masses. [...]
hep-ph/0302032; CERN-TH-2003-001; UMN-TH-2128-03; TPI-MINN-03-03; CERN-TH-2003-001; TPI-MINN-2003-03; UMN-TH-2128.-
Geneva : CERN, 2003 - 29 p.
- Published in : Phys. Rev. D 67 (2003) 123502
APS Published version, local copy: PDF; Access to fulltext document: PDF; Fulltext: PDF; External link: Preprint
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