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Combined analyses at the Large Hadron Collider and at the International Linear Collider are important to reveal precisely the new physics model as, for instance, supersymmetry. Examples are presented where ILC results as input for LHC…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gudrid Moortgat-Pick

This report summarizes the progress in SUSY studies performed during the Extended ECFA/DESY Workshop since the TESLA TDR. Based on accurate future measurements of masses of SUSY particles and the determination of the couplings and mixing…

High Energy Physics - Phenomenology · Physics 2007-05-23 Jan Kalinowski

The motivation for introduction of supersymmetry in high energy physics as well as a possibility for supersymmetry discovery at LHC (Large Hadronic Collider) are discussed. The main notions of the Minimal Supersymmetric Standard Model…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. V. Gladyshev , D. I. Kazakov

At the LHC, superpartners with the masses lighter than a few TeV may be found, and the masses of the supersymmetric (SUSY) particles and their interactions will be studied. The information would be the base to consider the SUSY breaking…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mihoko M. Nojiri

The ATLAS and CMS experiments at the Large Hadron Collider (LHC) at CERN have searched for signals of new physics, in particular for supersymmetry. The data collected until 2012 at center-of-mass energies of 7 and 8 TeV and integrated…

High Energy Physics - Experiment · Physics 2016-09-07 Christian Autermann

Supersymmetry (SUSY) is an attractive extension of the Standard Model possibly solving many standing issues in particle physics and cosmology. The general purpose ATLAS detector at the Large Hadron Collider (LHC) is an experiment capable of…

High Energy Physics - Experiment · Physics 2009-05-29 Aleksej Koutsman

We analyse the events with two same-flavour, opposite-sign leptons + $E_T^{miss}$ + (jets) as expected in pp collisions at LHC within the framework of the minimal Supergravity Model. The objective is the determination of the parameters m_0…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. Denegri , W. Majerotto , L. Rurua

We present a short review of the LHC results at 7 TeV and their implications on the Standard Model (SM) and on its Supersymmetric (SUSY) extension. In particular we discuss the exclusion range for the SM Higgs mass, the tantalizing hint of…

High Energy Physics - Phenomenology · Physics 2012-06-08 Guido Altarelli

If Supersymmetry (SUSY) has a compressed spectrum the current limits from the LHC can be drastically reduced. We take possible `worst case' scenarios where combinations of the stop, squark and gluino masses are degenerate with the mass of…

High Energy Physics - Phenomenology · Physics 2013-05-30 Herbert Dreiner , Michael Krämer , Jamie Tattersall

We explore supersymmetry (SUSY) parameter space with non-universal high scale parameters in gravity mediated SUSY breaking (SUGRA) scenario that accommodates a Higgs mass of (125$\pm$2) GeV while satisfying cold dark matter relic density…

High Energy Physics - Phenomenology · Physics 2014-01-22 Subhaditya Bhattacharya , Shreyashi Chakdar , Kirtiman Ghosh , S. Nandi

With the 8 TeV LHC run now concluded, the first consequences of the experimental results on the supersymmetric parameter space can be drawn. On one hand, the negative direct searches place more and more stringent bounds on the mass of…

High Energy Physics - Phenomenology · Physics 2015-06-16 Enrico Bertuzzo

If supersymmetry exists at the electroweak scale, then it should be discovered at the LHC. Determining masses, of supersymmetric particles however, is more difficult. In this paper, methods are discussed to determine combinations of masses…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. Hinchliffe , F. E. Paige , M. D. Shapiro , J. Soderqvist , W. Yao

Supersymmetry (SUSY) provides elegant solutions to several open questions in the Standard Model, and searches for SUSY particles are an important component of the LHC physics program. Naturalness arguments favour supersymmetric partners of…

High Energy Physics - Experiment · Physics 2026-01-28 Matteo Greco

The realization that supersymmetry (SUSY), if softly broken at the weak scale, can stabilize the Higgs sector led many authors to explore the role it may play in particle physics. It was widely anticipated that superpartners would reveal…

High Energy Physics - Phenomenology · Physics 2020-12-30 Xerxes Tata

Global frequentist fits to the CMSSM and NUHM1 using the MasterCode framework are updated to include the public results of searches for supersymmetric signals using \sim 1/fb of LHC data recorded by ATLAS and CMS and \sim 0.3/fb of data…

High Energy Physics - Phenomenology · Physics 2015-03-13 S. Heinemeyer

Weak-scale supersymmetry (SUSY) is well motivated as a technically natural solution to the gauge hierarchy problem. LHC limits on superpartners, however, have sharpened the Little Hierarchy problem, raising the question of why $m_{weak} \ll…

High Energy Physics - Phenomenology · Physics 2026-01-06 Kairui Zhang

We discuss the parameter spaces of supersymmetry (SUSY) scenarios taking into account the improved Higgs-mass prediction provided by FeynHiggs 2.14.1. Among other improvements, this prediction incorporates three-loop renormalization-group…

High Energy Physics - Phenomenology · Physics 2019-03-27 E. Bagnaschi , H. Bahl , J. Ellis , J. Evans , T. Hahn , S. Heinemeyer , W. Hollik , K. A. Olive , S. Paßehr , H. Rzehak , I. V. Sobolev , G. Weiglein , J. Zheng

Taking seriously phenomenological indications for supersymmetry, we have made a detailed study of unified minimal SUSY, including effects at the few percent level in a consistent fashion. We report here a general analysis without choosing a…

High Energy Physics - Phenomenology · Physics 2009-09-15 G. L. Kane , Chris Kolda , Leszek Roszkowski , James D. Wells

On the heels of the first analysis of LHC data eclipsing the inverse femtobarn integrated luminosity milestone, we undertake a detailed comparison of the most recent experimental results with Monte Carlo simulation of the full…

High Energy Physics - Phenomenology · Physics 2011-08-26 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

Supersymmetric (SUSY) models, even those described by relatively few parameters, generically allow many possible SUSY particle (sparticle) mass hierarchies. As the sparticle mass hierarchy determines, to a great extent, the collider…

High Energy Physics - Phenomenology · Physics 2015-04-17 James S. Gainer , Konstantin T. Matchev , Myeonghun Park