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We examine various aspects of supersymmetric particle production at linear $e^+e^-$ colliders operating at a centre of mass energy of $\sqrt{s}=500$ GeV, and integrated luminosity of $\int {\cal L}dt=20-50$ fb$^{-1}$. Working within the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Howard Baer , Ray Munroe , Xerxes Tata

Supersymmetry (SUSY) is one of the most interesting and comprehensively studied models for new physics beyond the Standard Model. If SUSY exists in nature the Large Hadron Collider will provide excellent opportunities to search for SUSY.…

High Energy Physics - Experiment · Physics 2019-08-14 N. Ozturk

If supersymmetry is discovered at the LHC, the measured spectrum of superpartner masses and couplings will allow us to probe the origins of supersymmetry breaking. However, to connect the collider-scale Lagrangian soft parameters to the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gordon L. Kane , Piyush Kumar , David E. Morrissey , Manuel Toharia

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

Prospects for SUSY discoveries and measurements at future colliders LHC and ILC are discussed. The problem of reconstructing the underlying theory and SUSY breaking mechanism is also addressed.

High Energy Physics - Phenomenology · Physics 2008-11-26 Jan Kalinowski

After a brief review of the Big Issues in particle physics, we discuss the contributions to resolving that could be made by various planned and proposed future colliders. These include future runs of LEP and the Fermilab Tevatron collider,…

High Energy Physics - Phenomenology · Physics 2007-05-23 John Ellis

Two next-generation high-energy experiments, the Large Hadron Collider (LHC) and the $e^+e^-$ International Linear Collider (ILC), are highly expected to unravel the new structure of matter and forces from the electroweak scale to the TeV…

High Energy Physics - Phenomenology · Physics 2007-11-15 S. Y. Choi

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

It is well-known that e$^+$e$^-$ colliders have the power to with certainty exclude or discover any SUSY model that predicts a Next to lightest SUSY particle (an NLSP) that has a mass up to slightly below the half the centre-of-mass energy…

High Energy Physics - Phenomenology · Physics 2020-03-30 Mikael Berggren

The purpose of this review is to investigate what kind of physics can be extracted at the LHC, assuming a discovery is made in events with missing transverse momentum, as generically expected in supersymmetry (SUSY) with R-parity…

High Energy Physics - Phenomenology · Physics 2020-01-08 Konstantin T. Matchev , Filip Moortgat , Luc Pape

We demonstrate how the interplay of a future e^+e^- LC at its first stage with sqrt{s} sim 500 GeV and of the LHC could lead to a precise determination of the fundamental SUSY parameters in the gaugino/higgsino sector without assuming a…

High Energy Physics - Phenomenology · Physics 2016-09-06 K. Desch , J. Kalinowski , G. Moortgat-Pick , M. M. Nojiri , G. Polesello

A high-energy $e^+e^-$ Linear Collider has been considered since a long time as an important complement to the LHC. Unprecedented precision measurements as well as the exploration of so far untouched phase space for direct production of new…

High Energy Physics - Phenomenology · Physics 2018-09-26 Jenny List , Gudrid Moortgat-Pick , Jürgen Reuter

The plan for mass and spin measurement of SUSY particles with the ATLAS detector is presented. The measurements of kinematical distributions, such as edges in the invariant mass of leptons and jets, could be used to constrain the model of…

High Energy Physics - Phenomenology · Physics 2019-08-13 N. Ozturk

The methodology of the heterotic mini-landscape attempts to zero in on phenomenologically viable corners of the string landscape where the effective low energy theory is the Minimal Supersymmetric Standard Model with localized grand…

High Energy Physics - Phenomenology · Physics 2017-08-02 Howard Baer , Vernon Barger , Michael Savoy , Hasan Serce , Xerxes Tata

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 requirement that SUSY should solve the hierarchy problem without undue fine-tuning imposes severe constraints on the new supersymmetric states. With the MSSM spectrum and soft SUSY breaking originating from universal scalar and gaugino…

High Energy Physics - Phenomenology · Physics 2015-05-27 S. Cassel , D. M. Ghilencea , S. Kraml , A. Lessa , G. G. Ross

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

After the discovery of a Higgs boson, the next step is to measure its properties and test their accordance with the predictions of the Standard Model, in particular the couplings of the Higgs boson. In this talk we discuss what information…

High Energy Physics - Phenomenology · Physics 2012-04-02 Michael Rauch

The scalar particle recently discovered at the LHC has the same gauge quantum numbers as the neutrino, so they could be one the superpartner of the other. We discuss the conditions that should be satisfied in order to realize such…

High Energy Physics - Phenomenology · Physics 2014-07-03 Carla Biggio

The physics potential of the Large Hadron Collider in combination with the planned International Linear Collider is discussed for a difficult region of supersymmetry that is characterized by scalar SUSY particles with masses around 2 TeV.…

High Energy Physics - Phenomenology · Physics 2007-10-26 K. Desch , J. Kalinowski , G. Moortgat-Pick , K. Rolbiecki , W. J. Stirling