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We investigate the constraints on Supersymmetry arising from available precision measurements using a global fit approach. When interpreted within minimal supergravity (mSUGRA), the data provide significant constraints on the masses of…

High Energy Physics - Phenomenology · Physics 2014-11-20 P. Bechtle , K. Desch , M. Uhlenbrock , P. Wienemann

Sources of uncertainty are reviewed for calculated atomic and molecular data that are important for plasma modeling: atomic and molecular structure and cross sections for electron-atom, electron-molecule, and heavy particle collisions. We…

If supersymmetric particles are produced at the Large Hadron Collider it becomes very important not only to identify them, but also to determine their masses with the highest possible precision, since this may lead to an understanding of…

High Energy Physics - Phenomenology · Physics 2007-05-23 B. K. Gjelsten , D. J. Miller , P. Osland

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

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

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

The supersymmetric standard model with supergravity-inspired soft breaking terms predicts a rich pectrum of sparticles to be discovered at the SSC, LHC and NLC. Because there are more supersymmetric particles than unknown parameters, one…

High Energy Physics - Phenomenology · Physics 2011-03-04 Stephen P. Martin , Pierre Ramond

These lectures, given at the 1997 TASI Summer School, describe the prospects for discovering supersymmetry (SUSY) and for studying its properties at the Large Hadron Collider (LHC) at CERN. If SUSY exists at a mass scale less than 1--2 TeV,…

High Energy Physics - Phenomenology · Physics 2009-09-25 Frank E. Paige

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 key research question at the Large Hadron Collider (LHC) is the test of models of new physics. Testing if a particular parameter set of such a model is excluded by LHC data is a challenge: It requires the time consuming generation of…

High Energy Physics - Phenomenology · Physics 2017-04-27 Sascha Caron , Jong Soo Kim , Krzysztof Rolbiecki , Roberto Ruiz de Austri , Bob Stienen

We calculate supersymmetric mass spectra with cMSSM boundary conditions and a type-I seesaw mechanism added to explain current neutrino data. Using published, estimated errors on SUSY mass observables for a combined LHC+ILC analysis, we…

High Energy Physics - Phenomenology · Physics 2015-06-03 Carolina Arbeláez , Martin Hirsch , Laslo Reichert

We analyse the predictions of both Higgs and top masses in a generic MSSM satisfying gauge-coupling unification, radiative electroweak symmetry breaking, with a natural (non-splitted) spectrum of soft-breaking terms, and an arbitrary…

High Energy Physics - Phenomenology · Physics 2018-06-06 Gino Isidori , Andrea Pattori

The remaining theoretical uncertainties from unknown higher-order corrections in the prediction for the light Higgs-boson mass of the MSSM are estimated. The uncertainties associated with three different approaches that are implemented in…

High Energy Physics - Phenomenology · Physics 2020-06-24 Henning Bahl , Sven Heinemeyer , Wolfgang Hollik , Georg Weiglein

We quantify and examine the uncertainties in predictions of the lightest $CP$ even Higgs boson pole mass $M_h$ in the Minimal Supersymmetric Standard Model (MSSM), utilising current spectrum generators and including some three-loop…

High Energy Physics - Phenomenology · Physics 2018-08-15 B. C. Allanach , A. Voigt

One of the goals of current particle physics research is to obtain evidence for new physics, that is, physics beyond the Standard Model (BSM), at accelerators such as the Large Hadron Collider (LHC) at CERN. The searches for new physics are…

High Energy Physics - Phenomenology · Physics 2022-07-12 Braden Kronheim , Michelle Kuchera , Harrison Prosper , Alexander Karbo

There is hope that the Large Hadron Collider (LHC) at CERN will tell us about the fate of supersymmetry at the TeVscale. Therefore we might try to identify our expectations for the discovery of SUSY, especially in the first years of…

High Energy Physics - Theory · Physics 2009-02-02 Hans Peter Nilles

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 discuss the sources of uncertainty in calculations of the partial widths of the Higgs boson within the Standard Model. The uncertainties come from two sources: the truncation of perturbation theory and the uncertainties in input…

High Energy Physics - Phenomenology · Physics 2015-04-23 G. Peter Lepage , Paul B. Mackenzie , Michael E. Peskin

This document presents recent results from the ATLAS and CMS experiments at the CERN Large Hadron Collider (LHC) on supersymmetry (SUSY) searches. These searches provide results with some non-conventional SUSY search assumptions such as…

High Energy Physics - Experiment · Physics 2025-06-10 Hyejin Kwon

Group theoretical factors from GUT symmetry breaking can lead to predictions for the ratios of quark and lepton masses at the unification scale. Due to supersymmetric (SUSY) threshold corrections the viability of such predictions can depend…

High Energy Physics - Phenomenology · Physics 2015-05-13 Stefan Antusch , Martin Spinrath