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Recent developments in prospects of searching for Higgs particles and testing their properties at the LHC and at TeV e+e- linear colliders are summarized. The discovery limits of supersymmetric particles at the LHC are presented and the…

High Energy Physics - Phenomenology · Physics 2007-05-23 W. Kilian , P. M. Zerwas

We begin a systematic study of how gaugino mass unification can be probed at the CERN Large Hadron Collider (LHC) in a quasi-model independent manner. As a first step in that direction we focus our attention on the theoretically…

High Energy Physics - Phenomenology · Physics 2010-04-15 Baris Altunkaynak , Phillip Grajek , Michael Holmes , Gordon Kane , Brent D. Nelson

We report on the first step of a systematic study of how gaugino mass unification can be probed at the LHC in a quasi-model independent manner. Here we focus our attention on the theoretically well-motivated mirage pattern of gaugino…

High Energy Physics - Phenomenology · Physics 2014-11-20 Brent D. Nelson

Discovery of supersymmetric (SUSY) particles at the Large Hadron Collider(LHC) has been studied for the models where squarks and gluino are much heavier than the lightest supersymetric particle (LSP). In this paper, we investigate the SUSY…

High Energy Physics - Phenomenology · Physics 2009-11-11 Kiyotomo Kawagoe , Mihoko M. Nojiri

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 address the problem of mass measurements of supersymmetric particles at the Large Hadron Collider, using the ATLAS detector as an example. By using Markov Chain sampling techniques to combine standard measurements of kinematic edges in…

High Energy Physics - Phenomenology · Physics 2009-09-29 Christopher G. Lester , Michael A. Parker , Martin J. White

We consider a specific class of events of the SUSY particle production at the LHC without missing p_T. Namely, we discuss the chargino pair production with a further decay into the W-boson and the neutralino when the masses of the chargino…

High Energy Physics - Phenomenology · Physics 2016-04-01 A. S. Belyaev , D. I. Kazakov , A. Sperling

We carry out an analysis of the potential of the Large Hadron Collider (LHC) to discover supersymmetry in runs at $\sqrt s=7$ TeV with an accumulated luminosity of (0.1--2) fb$^{-1}$ of data. The analysis is done both with minimal…

High Energy Physics - Phenomenology · Physics 2010-12-23 Baris Altunkaynak , Michael Holmes , Pran Nath , Brent D. Nelson , Gregory Peim

Supersymmetric particles can be produced copiously at future colliders. From the high-precision data taken at e+e- linear colliders, TESLA in particular, and combined with results from LHC, and CLIC later, the low-energy parameters of the…

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

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

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

If supersymmetry is discovered at the LHC, the extraction of the fundamental parameters will be a formidable task. In such a system where measurements depend on different combinations of the parameters in a highly correlated system, the…

High Energy Physics - Phenomenology · Physics 2014-11-20 Dirk Zerwas

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

In order to establish supersymmetry (SUSY) at future colliders, the identity of gauge couplings and the corresponding Yukawa couplings between gauginos, sfermions and fermions needs to be verified. Here a first phenomenological study for…

High Energy Physics - Phenomenology · Physics 2009-12-15 A. Freitas , P. Z. Skands

This work summarizes and puts in an overall perspective studies done within CMS concerning the discovery potential for squarks and gluinos, sleptons, charginos and neutralinos, SUSY dark matter, lightest Higgs, sparticle mass determination…

Supersymmetric models with a strongly interacting superconformal hidden sector (HS) may drive soft SUSY breaking scalar masses, bilinear soft term B\mu and Higgs combinations m_{H_{u,d}}^2+\mu^2 to small values at some intermediate scale,…

High Energy Physics - Phenomenology · Physics 2024-01-30 Howard Baer , Vernon Barger , Dakotah Martinez

A compressed spectrum was initially proposed as an explanation for the elusiveness of low-energy supersymmetry (SUSY). Some characteristic signals at the Large Hadron Collider (LHC), such as mono-jet + \slashed{E}_T, had been propounded as…

High Energy Physics - Phenomenology · Physics 2016-01-19 Juhi Dutta , Partha Konar , Subhadeep Mondal , Biswarup Mukhopadhyaya , Santosh Kumar Rai

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

Weak scale supersymmetry (SUSY) remains a compelling extension of the Standard Model because it stabilizes the quantum corrections to the Higgs and W, Z boson masses. In natural SUSY models these corrections are, by definition, never much…

High Energy Physics - Phenomenology · Physics 2017-11-22 Howard Baer , Vernon Barger , James S. Gainer , Peisi Huang , Michael Savoy , Hasan Serce , Xerxes Tata

Searches for supersymmetry (SUSY) are very important tasks at the Large Hadron colleder(LHC). If SUSY exists at the TeV scale, clear excess above the Standard Model (SM) background will be observed. SM background should be estimated from…

High Energy Physics - Experiment · Physics 2019-08-14 Takayuki Yamazaki