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If supersymmetry is observed at the LHC its model parameters can be measured at the electroweak scale. We discuss the expected precision on the parameter determination, including a proper treatment of experimental and theoretical errors.…

High Energy Physics - Phenomenology · Physics 2011-03-03 Claire Adam , Jean-Loic Kneur , Remi Lafaye , Tilman Plehn , Michael Rauch , Dirk Zerwas

The purpose of this study is to determine the experimental uncertainties in measuring mass and cross section parameters of SUSY particles at a 500 GeV Linear Collider. In this study SUSY is a point in the focus point region of mSUGRA…

High Energy Physics - Experiment · Physics 2009-10-09 R. Gray , J. Alexander , K. M. Ecklund , L. Fields , D. Hertz , C. D. Jones , J. Pivarski , A. Birkedal , K. Matchev

In light of the discovery of the new particle at 125GeV and the strong lower limits on the masses of superparticles from LHC, we discuss a possible picture of weak scale supersymmetry.

High Energy Physics - Phenomenology · Physics 2015-06-12 Ryuichiro Kitano

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

The Standard Model of particle physics successfully describes the elementary particles and their interactions at low energies, up to 100 GeV. Beyond this scale lies the realm of new physics needed to remedy problems that arise at higher…

High Energy Physics - Experiment · Physics 2017-12-27 Othmane Rifki

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

We present a supersymmetric extension of the Standard Model that posseses a continuous $ U(1)_R$ symmetry, which is identified with one of three lepton numbers, and where a sneutrino vev gives mass to the down type quark and leptons. This…

High Energy Physics - Phenomenology · Physics 2013-05-30 Claudia Frugiuele , Thomas Gregoire

We provide a bestiary of public codes and other algorithmic tools that can be used for analysing supersymmetric phenomenology. We also describe the organisation of the different tools and communication between them. Tools exist that…

High Energy Physics - Phenomenology · Physics 2009-02-18 B. C. Allanach

Direct searches for superpartners and precision measurements of the properties of the $\sim 126$ GeV Higgs boson lead to important inter-dependent constraints on the underlying parameter space of the MSSM. The 19/20-parameter…

High Energy Physics - Phenomenology · Physics 2013-10-02 Matthew Cahill-Rowley , JoAnne Hewett , Ahmed Ismail , Tom Rizzo

We perform global fits to the parameters of the Constrained Minimal Supersymmetric Standard Model (CMSSM) and to a variant with non-universal Higgs masses (NUHM1). In addition to constraints from low-energy precision observables and the…

If SUSY provides a solution to the hierarchy problem then supersymmetric states should not be too heavy. This requirement is quantified by a fine tuning measure that provides a quantitative test of SUSY as a solution to the hierarchy…

High Energy Physics - Phenomenology · Physics 2010-05-07 S. Cassel , D. M. Ghilencea , G. G. Ross

We investigate the possibility of testing supergravity unified models with scalar masses in the range 50-100 TeV and much lighter gaugino masses at the Large Hadron Collider. The analysis is carried out under the constraints that models…

High Energy Physics - Phenomenology · Physics 2017-10-18 Amin Aboubrahim , Pran Nath

We take stock of the No-Scale F-SU(5) model's experimental status and prospects in the light of results from LHC, Planck, and XENON100. Given that no conclusive evidence for light Supersymmetry (SUSY) has emerged from the 7, 8 TeV collider…

High Energy Physics - Phenomenology · Physics 2013-10-15 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

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

We explore the potential of neutralino dark matter within the framework of gauge-mediated supersymmetry (SUSY) breaking. In our models, the lightest neutralino, as the lightest SUSY particle (LSP), is a viable dark matter candidate,…

High Energy Physics - Phenomenology · Physics 2025-02-12 Michihisa Takeuchi , Norimi Yokozaki , Junhao Zhu

Supersymmetry is an attractive extension of the standard model of particle physics. It associates to every bosonic degree of freedom a fermionic one and vice versa. Supersymmetry unifies the coupling constants of the electromagnetic, weak…

High Energy Physics - Phenomenology · Physics 2010-07-09 Dirk Zerwas

The discovery and exploration of Supersymmetry in a model-independent fashion will be a daunting task due to the large number of soft-breaking parameters in the MSSM. In this paper, we explore the capability of the ATLAS detector at the LHC…

High Energy Physics - Phenomenology · Physics 2011-07-26 John A. Conley , James S. Gainer , JoAnne L. Hewett , My Phuong Le , Thomas G. Rizzo

I present an overview of theoretical expectations for detection of dark matter (DM) at the LHC, concentrating entirely on supersymmetric candidates. En route, I present a unified theory which explains dark matter signals at indirect and…

High Energy Physics - Phenomenology · Physics 2010-12-02 Howard Baer

One of the main motivations of experiments at the LHC is to search for SUSY particles. The talk is based on recent analyses, performed by CMS Collaboration, within the framework of the Supergravity motivated minimal SUSY extension of the…

High Energy Physics - Experiment · Physics 2019-08-16 A. Kharchilava

Weak scale supersymmetry is a highly motivated extension of the Standard Model that has a strong degree of support from data. It provides several viable dark matter candidates: the lightest neutralino (a WIMP), the gravitino, and the…

High Energy Physics - Phenomenology · Physics 2009-12-07 Howard Baer
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