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1.
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Likelihood Analysis of Supersymmetric SU(5) GUTs
/ Bagnaschi, E. (DESY) ; Costa, J.C. (Imperial Coll., London) ; Sakurai, K. (Durham U., IPPP ; Warsaw U.) ; Borsato, M. (Santiago de Compostela U.) ; Buchmueller, O. (Imperial Coll., London) ; Cavanaugh, R. (Fermilab ; Illinois U., Chicago) ; Chobanova, V. (Santiago de Compostela U.) ; Citron, M. (Imperial Coll., London) ; De Roeck, A. (CERN ; Antwerp U.) ; Dolan, M.J. (Melbourne U.) et al.
We perform a likelihood analysis of the constraints from accelerator experiments and astrophysical observations on supersymmetric (SUSY) models with SU(5) boundary conditions on soft SUSY-breaking parameters at the GUT scale. The parameter space of the models studied has 7 parameters: a universal gaugino mass $m_{1/2}$, distinct masses for the scalar partners of matter fermions in five- and ten-dimensional representations of SU(5), $m_5$ and $m_{10}$, and for the $\mathbf{5}$ and $\mathbf{\bar 5}$ Higgs representations $m_{H_u}$ and $m_{H_d}$, a universal trilinear soft SUSY-breaking parameter $A_0$, and the ratio of Higgs vevs $\tan \beta$. [...]
arXiv:1610.10084; KCL-PH-TH-2016-57; CERN-TH-2016-217; DESY-16-156; IIFT-UAM-CSIC-16-105; FTPI-MINN-16-29; UMN-TH-3609-16; IPPP-16-97; CERN-PH-TH-2016-217; IFT-UAM-CSIC-16-105; FERMILAB-PUB-16-453-CMS.-
Geneva : CERN, 2017-02-16 - 36 p.
- Published in : Eur. Phys. J. C 77 (2017) 104
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: fermilab-pub-16-453-cms - PDF; arXiv:1610.10084 - PDF; Springer Open Access article: PDF; External link: Fermilab Library Server (fulltext available)
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2.
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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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3.
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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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4.
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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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5.
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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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6.
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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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7.
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End of the CMSSM coannihilation strip is nigh
/ Citron, M. (Imperial Coll., London) ; Ellis, J. (King's Coll. London ; CERN) ; Luo, F. (King's Coll. London) ; Marrouche, J. (Imperial Coll., London) ; Olive, K.A. (Minnesota U. ; Minnesota U., Theor. Phys. Inst.) ; de Vries, K.J. (Imperial Coll., London)
A recent global fit to the CMSSM incorporating current constraints on supersymmetry, including missing transverse energy searches at the LHC, BR(B_s to mu+ mu-) and the direct XENON100 search for dark matter, favours points towards the end of the stau-neutralino (stau_1- chi) coannihilation strip with relatively large m_1/2 and 10 < tan beta < 40 and points in the H/A rapid-annihilation funnel with tan beta ~ 50. The coannihilation points typically have m_stau_1-m_chi < 5 GeV, and a significant fraction, including the most-favoured point, has m_stau_1-m_chi < m_tau. [...]
arXiv:1212.2886; KCL-PH-TH-2012-46; LCTS-2012-32; CERN-PH-TH-2012-331; UMN-TH-3127-12; FTPI-MINN-12-38; UMN--TH--3127-12; FTPI--MINN--12-38; KCL-PH-TH-2012-46; LCTS-2012-32; CERN-PH-TH-2012-331; UMN--TH--3127-12; FTPI--MINN--12-38.-
2013-02-22 - 18 p.
- Published in : Phys. Rev. D 87 (2013) 036012
APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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8.
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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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9.
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Higgs and Supersymmetry
/ Buchmueller, O. (Imperial Coll., London) ; Cavanaugh, R. (Fermilab ; Illinois U., Chicago) ; De Roeck, A. (CERN ; Antwerp U.) ; Dolan, M.J. (Durham U., IPPP) ; Ellis, J.R. (King's Coll. London ; CERN) ; Flacher, H. (Bristol U.) ; Heinemeyer, S. (Cantabria Inst. of Phys.) ; Isidori, G. (Pisa, Scuola Normale Superiore ; Frascati) ; Marrouche, J. (Imperial Coll., London) ; Martinez Santos, D. (CERN) et al.
Global frequentist fits to the CMSSM and NUHM1 using the MasterCode framework predicted m_h \simeq 119 GeV in fits incorporating the g_mu-2 constraint and \simeq 126 GeV without it. Recent results by ATLAS and CMS could be compatible with a Standard Model-like Higgs boson around m_h \simeq 125 GeV. [...]
arXiv:1112.3564; KCL-PH-TH-2011-40; LCTS-2011-21; CERN-PH-TH-2011-305; DCPT-11-168; IPPP-11-84; FTPI-MINN-11-31; UMN-TH-3023-11; FERMILAB-PUB-12-898-CMS; DESY-11-242; KCL-PH-TH-2011-40; LCTS-2011-21; CERN-PH-TH-2011-305; DCPT-11-168; DESY 11-242; IPPP-11-84; FTPI-MINN-11-31; UMN-TH-3023-11.-
2012-06-07 - 17 p.
- Published in : Eur. Phys. J. C 72 (2012) 2020
Fermilab Library Server: PDF; Fulltext: PDF; External link: Fermilab Library Server (fulltext available)
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