Supersymmetry parameter analysis: SPA convention and project

Aguilar-Saavedra, J. A.; Ali, Ahmed; Allanach, B. C.; Arnowitt, R.; Baer, Howard; Bagger, Jonathan; Balázs, Csaba; Barger, Vernon; Barnett, R. M.; Bartl, A.; Battaglia, M.; Bechtle, P.; Bélanger, G.; Belyaev, A.; Berger, Edmond L.; Blair, G.A.; Boos, E.; Carena, Marcela; Choi, Seong Youl; Deppisch, Frank F.; Roeck, A. De; Desch, K.; Díaz, M. A.; Djouadi, Abdelhak; Dutta, Bhaskar; Dutta, S.; Eberl, H.; Ellis, Jonathan Richard; Erler, Jens; Fraas, H.; Freitas, Ayres; Fritzsche, T.; Godbole, R. M.; Gounaris, G. J.; Guasch, Jaume; Gunion, J.F.; Haba, Naoyuki; Haber, Howard E.; Hagiwara, Kaoru; Han, L.; Han, Tao; He, H.; Heinemeyer, S.; Hesselbach, S.; Hidaka, K.; Hinchliffe, I.; Hirsch, Martin; Hohenwarter-Sodek, K.; Hollik, W.; Hou, W.-S.; Hurth, Tobias; Jack, I.; Jiang, Y.; Jones, D.R.T.; Kalinowski, J.; Kamon, T.; Kane, Gordon L.; Kang, Sin Kyu; Kernreiter, T.; Kilian, Wolfgang; Kim, C. S.; King, Stephen F.; Kittel, O.; Klasen, M.; Kneur, Jean-Loïc; Kovařı́k, K.; Krämer, M.; Kraml, S.; Lafaye, R.; Langacker, Paul; Logan, Heather E.; Ma, W.G.; Majerotto, W.; Martyn, H. U.; Matchev, K.; Miller, D. J.; Mondragon, M. C.; Moortgat‐Pick, Gudrid; Moretti, Stefano; Mori, T.; Moultaka, G.; Muanza, S.; Mühlleitner, M.; Mukhopadhyaya, Biswarup; Nauenberg, U.; Nojiri, Mihoko M.; Nomura, Daisuke; Nowak, H.; Okada, Nobuchika; Olive, Keith A.; Öller, W.; Peskin, Michael E.; Plehn, Tilman; Polesello, G.; Porod, W.; Quevedo, Fernando; Rainwater, D.; Reuter, J.; Richardson, Peter; Rolbiecki, Krzysztof; Roy, Probir; Rückl, R.; Rzehak, Heidi; Schleper, P.; Siyeon, K.; Skands, Peter; Slavich, Pietro; Stöckinger, Dominik; Sphicas, P.; Spira, M.; Tait, Tim M. P.; Tovey, D. R.; Valle, J. W. F.; Wagner, Carlos E. M.; Weber, C.; Weiglein, G.; Wienemann, P.; Zhang, Xing; Yamada, Youichi; Yang, Jin Min; Zerwas, D.; Zerwas, P.M.; Zhang, R.-Y.; Zhang, X.; Zhu, Shou Hua

doi:10.1140/epjc/s2005-02460-1

Cited by 247 publications

(256 citation statements)

References 59 publications

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“…In section 5 we will then show how it is possible for MRSSM to accommodate both the lightest Higgs boson mass of 125 GeV and the correct W boson mass and which regions of parameter space are still viable for the model. 1 Parameters are defined following the SPA convention [37].…”

Section: Calculation Setup and Benchmark Pointsmentioning

confidence: 99%

Higgs boson mass and electroweak observables in the MRSSM

Diessner

Kalinowski

Kotlarski

et al. 2014

J. High Energ. Phys.

159

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R-symmetry is a fundamental symmetry which can solve the SUSY flavor problem and relax the search limits on SUSY masses. Here we provide a complete next-toleading order computation and discussion of the lightest Higgs boson mass, the W boson mass and muon decay in the minimal R-symmetric SUSY model (MRSSM). This model contains non-MSSM particles including a Higgs triplet, Dirac gauginos and higgsinos, and leads to significant new tree-level and one-loop contributions to these observables. We show that the model can accommodate the measured values of the observables for interesting regions of parameter space with stop masses of order 1 TeV in spite of the absence of stop mixing. We characterize these regions and provide typical benchmark points, which are also checked against further experimental constraints. A detailed exposition of the model, its mass matrices and its Feynman rules relevant for computations in this paper is also provided.

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Section: Calculation Setup and Benchmark Pointsmentioning

confidence: 99%

Higgs boson mass and electroweak observables in the MRSSM

Diessner

Kalinowski

Kotlarski

et al. 2014

J. High Energ. Phys.

159

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“…First SUSY search results at the LHC with an integrated luminosity of about 1 fb −1 of data excluded six out of the nine SPS benchmark points that had been in use since about a decade [36,37]. These cMSSM points therefore had to be replaced by new lines [6] where, motivated by the constraints derived from the measurements of the anomalous magnetic moment of the muon (g − 2) µ and the rare b → sγ decay, only models with a positive off-diagonal Higgs mixing parameter µ > 0 and tan β = 10, A 0 = 0 GeV or tan β = 40, A 0 = −500 GeV were chosen.…”

Section: Benchmark Pointsmentioning

confidence: 99%

Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV

Fuks

Klasen

Lamprea

et al. 2012

J. High Energ. Phys.

161

148

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Motivated by hints for a light Standard Model-like Higgs boson and a shift in experimental attention towards electroweak supersymmetry particle production at the CERN LHC, we update in this paper our precision predictions at next-to-leading order of perturbative QCD matched to resummation at the next-to-leading logarithmic accuracy for direct gaugino pair production in proton-proton collisions with a center-of-mass energy of 8 TeV. Tables of total cross sections are presented together with the corresponding scale and parton density uncertainties for benchmark points adopted recently by the experimental collaborations, and figures are presented for up-to-date model lines attached to them. Since the experimental analyses are currently obtained with parton showers matched to multi-parton matrix elements, we also analyze the precision of this procedure by comparing invariant-mass and transverse-momentum distributions obtained in this way to those obtained with threshold and transverse-momentum resummation.

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“…Their discovery is one of the main goals of present and future colliders in the TeV range. In particular, the international e + e − linear collider (ILC) will be an excellent tool to determine the parameters of the SUSY model with high precision [4][5][6][7][8]. Such a machine provides high luminosity L = 500 fb −1 , a center-of-mass energy of √ s = 500 GeV in the first stage, and a polarised electron beam with the option of a polarised positron beam [9].…”

Section: Introductionmentioning

confidence: 99%

Discovery potential of radiative neutralino production at the ILC

Dreiner¹,

Kittel²,

Langenfeld³

2006

Phys. Rev. D

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We study radiative neutralino production e + e − →χ 0 1χ 0 1 γ at the linear collider with longitudinally polarised beams. We consider the Standard Model background from radiative neutrino production e + e − → ννγ, and the supersymmetric radiative production of sneutrinos e + e − →νν * γ, which can be a background for invisible sneutrino decays. We give the complete tree-level formulas for the amplitudes and matrix elements squared. In the Minimal Supersymmetric Standard Model, we study the dependence of the cross sections on the beam polarisations, on the parameters of the neutralino sector, and on the selectron masses. We show that for bino-like neutralinos longitudinal polarised beams enhance the signal and simultaneously reduce the background, such that statistics is significantly enhanced. We point out that there are parameter regions where radiative neutralino production is the only channel to study SUSY particles, since heavier neutralinos, charginos and sleptons are too heavy to be pair-produced in the first stage of the linear collider with √ s = 500 GeV.

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Supersymmetry parameter analysis: SPA convention and project

Cited by 247 publications

References 59 publications

Higgs boson mass and electroweak observables in the MRSSM

Higgs boson mass and electroweak observables in the MRSSM

Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV

Discovery potential of radiative neutralino production at the ILC

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