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If supersymmetry (SUSY) is realized at the electroweak scale, its underlying structure and breaking mechanism may be explored with great precision by a future linear $e^+ e^-$ collider (LC) with a clean environment, tunable collision…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Y. Choi

We present a case study for the synergy of combined LHC and LC analyses in Susy searches where simultaneous running of both machines is very important. In case that only light non-coloured Susy particles are accessible at a Linear Collider…

High Energy Physics - Phenomenology · Physics 2007-05-23 Gudrid Moortgat-Pick

We discuss the potential of combined LHC and ILC experiments for SUSY searches in a difficult region of the parameter space, in which all sfermion masses are above the TeV scale. Precision analyses of cross sections of light chargino…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Rolbiecki , K. Desch , J. Kalinowski , G. Moortgat-Pick

The impact of the LHC, SLHC and the ILC on the precision of the determination of supersymmetric parameters is investigated. In particular, in the point SPS1a the measurements performed at the ILC will improve by an order of magnitude the…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Lafaye , T. Plehn , D. Zerwas

We discuss the potential of combined analyses at the Large Hadron Collider and the planned International Linear Collider to explore low-energy supersymmetry in a difficult region of the parameter space characterized by masses of the scalar…

High Energy Physics - Phenomenology · Physics 2009-11-11 K. Desch , J. Kalinowski , G. Moortgat-Pick , K. Rolbiecki , W. J. Stirling

We present a case study for the synergy of combined LHC and LC analyses in Susy searches in which simultaneous running of both machines is very important. In this study only light non-coloured Susy particles are accessible at a Linear…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Moortgat-Pick , K. Desch , J. Kalinowski , M. M. Nojiri , G. Polesello

We study the determination of supersymmetric parameters at the LHC from a global fit including cross sections and edges of kinematic distributions. For illustration, we focus on a minimal supergravity scenario and discuss how well it can be…

High Energy Physics - Phenomenology · Physics 2014-11-20 Herbi K. Dreiner , Michael Krämer , Jonas M. Lindert , Ben O'Leary

After summarising very briefly the key features of different model predictions for sparticle masses and their relation with the supersymmetry (SUSY) breaking scales and parameters, I discuss the capabilities of an $e^+ e^-$ Linear Collider…

High Energy Physics - Phenomenology · Physics 2009-11-07 Rohini M. Godbole

This article presents the results of a realistic global fit of the Lagrangian parameters of the Minimal Supersymmetric Standard Model with no assumptions on the SUSY breaking mechanism using the fit program Fittino. The fit is performed…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Bechtle , K. Desch , P. Wienemann

We show that presently available precision data are in good agreement with supersymmetry at a mass scale below 1 TeV. Using a SUSY point close to the best fit to present data, we give a projection of the capabilities of the LHC to constrain…

High Energy Physics - Phenomenology · Physics 2015-05-14 Philip Bechtle , Klaus Desch , Mathias Uhlenbrock , Peter Wienemann

We discuss the signals at the Large Hadron Collider (LHC) for scenarios with non-universal gaugino masses in supersymmetric (SUSY) theories. We perform a multichannel analysis, and consider the ratios of event rates in different channels…

High Energy Physics - Phenomenology · Physics 2008-11-26 Subhaditya Bhattacharya , AseshKrishna Datta , Biswarup Mukhopadhyaya

The extraction of the parameters of the supersymmetric Lagrangian is discusse d. Particular emphasis is put on the rigorous treatment of experimental and theo retical errors. While the LHC can provide a valuable first estimate of the…

High Energy Physics - Phenomenology · Physics 2009-02-02 Dirk Zerwas

We analyze the potential of the first LHC physics run, assuming 1/fb at sqrt[s] = 7 TeV, to discover Supersymmetry (SUSY). The results are based on SUSY parameter fits following a frequentist approach. They include the experimental…

High Energy Physics - Phenomenology · Physics 2010-09-15 S. Heinemeyer

Coherent analyses at future LHC and LC experiments can be used to explore the breaking mechanism of supersymmetry and to reconstruct the fundamental theory at high energies, in particular at the grand unification scale. This will be…

High Energy Physics - Phenomenology · Physics 2009-11-10 B. C. Allanach , G. A. Blair , A. Freitas , S. Kraml , H. -U. Martyn , G. Polesello , W. Porod , P. M. Zerwas

The interplay of prospective experimental information from both the Large Hadron Collider (LHC) and the Linear Collider (LC) in the investigation of the MSSM Higgs sector is analyzed in the SPS~1a and SPS 1b benchmark scenarios. Combining…

High Energy Physics - Phenomenology · Physics 2010-02-03 K. Desch , E. Gross , S. Heinemeyer , G. Weiglein , L. Zivkovic

A selection of exclusive SUSY measurements is presented which can be performed provided SUSY will be discovered at the LHC. Such measurements allow to determine the properties of supersymmetry and thus help to pin down the underlying…

High Energy Physics - Experiment · Physics 2009-02-02 Peter Wienemann

Requiring that the contributions of supersymmetric particles to the Higgs mass are not highly tuned places upper limits on the masses of superpartners -- in particular the higgsino, stop, and gluino. We revisit the details of the tuning…

High Energy Physics - Phenomenology · Physics 2017-08-02 Matthew R. Buckley , Angelo Monteux , David Shih

We present the results of a realistic global fit of the Lagrangian parameters of the Minimal Supersymmetric Standard Model assuming universality for the first and second generation and real parameters. No assumptions on the SUSY breaking…

High Energy Physics - Phenomenology · Physics 2009-01-07 Philip Bechtle , Klaus Desch , Werner Porod , Peter Wienemann

The requirement of electroweak naturalness in simple supersymmetric models implies the existence of a cluster of four light higgsinos with mass $\sim 100-300$\,GeV, the lighter the better. While such light compressed spectra may be…

High Energy Physics - Experiment · Physics 2020-05-27 Howard Baer , Mikael Berggren , Keisuke Fujii , Jenny List , Suvi-Leena Lehtinen , Tomohiko Tanabe , Jacqueline Yan

We review the result of SUSY parameter fits based on frequentist analyses of experimental constraints from electroweak precision data, (g-2)_mu, B-physics and cosmological data. We investigate the parameters of the constrained MSSM (CMSSM)…

High Energy Physics - Phenomenology · Physics 2010-12-13 S. Heinemeyer , G. Weiglein
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