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Related papers: Prospects for natural SUSY

200 papers

The CMS and ATLAS Collaborations have recently published the results of initial direct LHC searches for supersymmetry analyzing ~ 35/pb of data taken at 7 TeV in the centre of mass. We incorporate these results into a frequentist analysis…

High Energy Physics - Phenomenology · Physics 2015-05-27 O. Buchmueller , R. Cavanaugh , D. Colling , A. De Roeck , M. J. Dolan , J. R. Ellis , H. Flacher , S. Heinemeyer , G. Isidori , K. Olive , S. Rogerson , F. Ronga , G. Weiglein

We examine the supersymmetry (SUSY) reach of the CERN LHC operating at $\sqrt{s}=10$ and 14 TeV within the framework of the minimal supergravity model. We improve upon previous reach projections by incorporating updated background…

High Energy Physics - Phenomenology · Physics 2009-12-10 H. Baer , V. Barger , A. Lessa , X. Tata

We study natural supersymmetry in the Generalized Minimal Supergravity (GmSUGRA). For the parameter space with low energy electroweak fine-tuning measures less than 50, we are left with only the $Z$-pole, Higgs-pole and Higgsino LSP…

High Energy Physics - Phenomenology · Physics 2018-08-08 Waqas Ahmed , Xiao-Jun Bi , Tianjun Li , Jia Shu Niu , Shabbar Raza , Qian-Fei Xiang , Peng-Fei Yin

Requiring that the contributions of supersymmetric particles to the Higgs mass are not highly tuned places upper limits on the masses of superpartners -- in particular the higgsino, stop, and gluino. We revisit the details of the tuning…

High Energy Physics - Phenomenology · Physics 2017-08-02 Matthew R. Buckley , Angelo Monteux , David Shih

The estimation of the backgrounds for gluino signals in focus point supersymmetry is extended by including the backgrounds from the production of four third generation quarks in the analysis. We find that these backgrounds are negligible if…

High Energy Physics - Phenomenology · Physics 2008-11-26 Siba Prasad Das , Amitava Datta , Monoranjan Guchait , Manas Maity , Siddhartha Mukherjee

We discuss the predictions of a constrained version of the exceptional supersymmetric standard model (cE6SSM), based on a universal high energy soft scalar mass m_0, soft trilinear coupling A_0 and soft gaugino mass M_1/2. We predict a…

High Energy Physics - Phenomenology · Physics 2010-04-21 P. Athron , S. F. King , D. J. Miller , S. Moretti , R. Nevzorov

We explore the coannihilation region of the constrained minimal supersymmetric standard model (CMSSM) being consistent with current experimental/observational results. The requirements from the experimental/observational results are the…

High Energy Physics - Phenomenology · Physics 2013-09-10 Yasufumi Konishi , Shingo Ohta , Joe Sato , Takashi Shimomura , Kenichi Sugai , Masato Yamanaka

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

Both ATLAS and CMS have published results of SUSY searches putting limits on SUSY parameters and masses. A non-discovery of SUSY in the next two years would push these limits further. On the other hand, precision data of low energy…

High Energy Physics - Phenomenology · Physics 2011-05-30 P. Bechtle , K. Desch , H. Dreiner , M. Kramer , B. O'Leary , C. Robens , B. Sarrazin , P. Wienemann

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

We have explored Natural Supersymmetry (NSUSY) scenarios with low values of the $\mu$ parameter which are characterised by higgsino-like Dark Matter (DM) and compressed spectra for the lightest MSSM particles, $\chi^0_1$, $\chi^0_2$ and…

High Energy Physics - Phenomenology · Physics 2015-07-24 Daniele Barducci , Alexander Belyaev , Aoife K. M. Bharucha , Werner Porod , Veronica Sanz

The absence of low energy supersymmetry in run I data at the LHC has pushed the nominal scale for supersymmetry beyond a TeV. While this is consistent with the discovery of the Higgs boson at \approx 125 GeV, simple models with scalar and…

High Energy Physics - Phenomenology · Physics 2015-10-23 Keith A. Olive

Gluinos that result in classic large missing transverse momentum signatures at the LHC have been excluded by 2011 searches if they are lighter than around 800 GeV. This adds to the tension between experiment and supersymmetric solutions of…

High Energy Physics - Phenomenology · Physics 2015-06-04 B. C. Allanach , Ben Gripaios

We examine the top squark (stop) and gluino reach of the proposed 33 TeV energy upgrade of the Large Hadron Collider (LHC33) in the Minimal Supersymmetric Standard Model (MSSM) with light higgsinos and relatively heavy electroweak gauginos.…

High Energy Physics - Phenomenology · Physics 2017-12-20 Howard Baer , Vernon Barger , James S. Gainer , Hasan Serce , Xerxes Tata

We study the determination of supersymmetric parameters at the LHC from a global fit including cross sections and edges of kinematic distributions. For illustration, we focus on a minimal supergravity scenario and discuss how well it can be…

High Energy Physics - Phenomenology · Physics 2014-11-20 Herbi K. Dreiner , Michael Krämer , Jonas M. Lindert , Ben O'Leary

If supersymmetry (SUSY) has a compressed spectrum then the current mass limits from the LHC can be drastically reduced. We consider a possible 'worst case' scenario where the gluino and/or squarks are degenerate with the lightest SUSY…

High Energy Physics - Phenomenology · Physics 2015-06-05 Herbi K. Dreiner , Michael Krämer , Jamie Tattersall

Besides Standard Model measurements and other Beyond Standard Model studies, the ATLAS and CMS experiments at the LHC will search for Supersymmetry, one of the most attractive explanation for dark matter. The SUSY discovery potential with…

High Energy Physics - Phenomenology · Physics 2012-01-06 Vasiliki A. Mitsou

Recent results on MSSM Higgs physics at the LHC are reviewed. The dependence of the LHC discovery reach in the b\bar b H/A, H/A \to \tau^+\tau^- channel on the underlying SUSY scenario is analysed. This is done by combining the latest…

High Energy Physics - Phenomenology · Physics 2007-09-28 Georg Weiglein

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…

In the CMSSM we find preferences for sparticle masses that are relatively light. In the NUHM1 the best-fit values for many sparticle masses are even slightly smaller, but with greater uncertainties. We find that at the 95% C.L. all colored…

High Energy Physics - Phenomenology · Physics 2011-06-16 S. Heinemeyer