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Related papers: LHC limits on gluinos and squarks in the minimal D…

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Most SUSY searches at the LHC are optimised for the MSSM, where gauginos are Majorana particles. By introducing Dirac gauginos, we obtain an enriched phenomenology, from which considerable differences in the LHC signatures and limits are…

High Energy Physics - Phenomenology · Physics 2019-10-29 Guillaume Chalons , Mark Goodsell , Sabine Kraml , Humberto Reyes-González , Sophie L. Williamson

Supersymmetric models with a Dirac gluino have been shown to be considerably less constrained from LHC searches than models with a Majorana gluino. In this paper, we generalize this discussion to models with a "Mixed Gluino", that acquires…

High Energy Physics - Phenomenology · Physics 2014-03-26 Graham D. Kribs , Nirmal Raj

We investigate squark and gluino pair production at LHC (CMS) with subsequent decays into quarks, leptons and LSP in models with effective supersymmetry where third generation of squarks is relatively light while the first two generations…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. I. Bityukov , N. V. Krasnikov

We investigate squark and gluino pair production at LHC (CMS) with subsequent decays into quarks, leptons and LSP in models with effective supersymmetry where third generation of squarks is relatively light while the first two generations…

High Energy Physics - Phenomenology · Physics 2009-11-07 S. I. Bityukov , N. V. Krasnikov

We consider the modifications to squark production in the presence of a naturally heavier Dirac gluino. First generation squark production is highly suppressed, providing an interesting but challenging signal find or rule out. No dedicated…

High Energy Physics - Phenomenology · Physics 2013-08-16 Graham D. Kribs , Adam Martin

R-symmetry leads to a distinct low energy realisation of SUSY with a significantly modified colour-charged sector featuring a Dirac gluino and scalar colour octets (sgluons). In the present work we recast results from LHC BSM searches to…

High Energy Physics - Phenomenology · Physics 2019-10-18 Philip Diessner , Jan Kalinowski , Wojciech Kotlarski , Dominik Stöckinger

Constraints from searches for squarks and gluinos at the LHC at sqrt{s}=8 TeV are applied to the parameter space of the NMSSM with universal squark/slepton and gaugino masses at the GUT scale, but allowing for non-universal soft Higgs mass…

High Energy Physics - Phenomenology · Physics 2015-06-12 Debottam Das , Ulrich Ellwanger , Ana M. Teixeira

If all strongly interacting sparticles (the squarks and the gluinos) in an unconstrained minimal supersymmetric standard model (MSSM) are heavier than the corresponding mass lower limits in the minimal supergravity (mSUGRA) model, obtained…

High Energy Physics - Phenomenology · Physics 2012-06-12 Arghya Choudhury , Amitava Datta

We study the effect of squark-generation mixing on production and decays of squarks and gluinos at LHC in the Minimal Supersymmetric Standard Model (MSSM). We show that the mixing effects can be very large in a significant range of the…

High Energy Physics - Phenomenology · Physics 2011-01-04 A. Bartl , H. Eberl , B. Herrmann , K. Hidaka , K. Hohenwarter-Sodek , T. Kernreiter , W. Majerotto , W. Porod

We investigate squark and gluino pair production at LHC (CMS) with subsequent decays into quarks and LSP for the case of nonuniversal gaugino masses. Visibility of signal by an excess over SM background in (n > 1)jets + E^{miss}_T events…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. I. Bityukov , N. V. Krasnikov

We study the effect of squark-generation mixing on gluino decays in the Minimal Supersymmetric Standard Model (MSSM). We show that due to the effect the quark-flavor violating (QFV) gluino decay branching ratio B(gluino -> c bar{t} (t…

High Energy Physics - Phenomenology · Physics 2010-05-12 K. Hidaka

We study constraints from LHC run I on squark and gluino masses in the presence of squark flavor violation. Inspired by the concept of `flavored naturalness', we focus on the impact of a non-zero stop-scharm mixing and mass splitting in the…

High Energy Physics - Phenomenology · Physics 2016-04-11 Monika Blanke , Benjamin Fuks , Iftah Galon , Gilad Perez

We analyse relevant signals expected at the LHC, assuming that the gluino is the lightest supersymmetric particle (LSP) in the framework of the $\mu\nu$SSM. In this $R$-parity violating model, the presence of couplings involving…

High Energy Physics - Phenomenology · Physics 2025-05-27 Paulina Knees , Essodjolo Kpatcha , Iñaki Lara , Daniel E. López-Fogliani , Carlos Muñoz , Natsumi Nagata , Hidetoshi Otono

We study the effects of squark generation mixing on squark and gluino production and decays at LHC in the Minimal Supersymmetric Standard Model (MSSM) with focus on the mixing between second and third generation squarks. Taking into account…

High Energy Physics - Phenomenology · Physics 2013-08-13 K. Hidaka , A. Bartl , H. Eberl , E. Ginina , B. Herrmann , W. Majerotto , W. Porod

We study gluino decays in the Minimal Supersymmetric Standard Model (MSSM) with squark generation mixing. We show that the effect of this mixing on the gluino decay branching ratios can be very large in a significant part of the MSSM…

High Energy Physics - Phenomenology · Physics 2010-05-12 A. Bartl , K. Hidaka , K. Hohenwarter-Sodek , T. Kernreiter , W. Majerotto , W. Porod

The purpose of this paper is to examine the model dependence of the stringent constraints on the gluino mass obtained from the Large Hadron Collider (LHC) experiments by analyzing the Run II data using specific simplified models based on…

High Energy Physics - Phenomenology · Physics 2023-08-08 Abhi Mukherjee , Saurabh Niyogi , Sujoy Poddar

An analysis of the cross section for hadronic production of gluino-squark pairs close to threshold is presented. Within the framework of non-relativistic QCD a significant enhancement compared to fixed order perturbation theory is observed…

High Energy Physics - Phenomenology · Physics 2015-05-30 Matthias R. Kauth , Achim Kress , Johann H. Kuhn

We present a phenomenological study of Dirac electroweakinos in a $U(1)_R$ extension of the MSSM with a strictly $R$-symmetric Higgs sector (MRSSM) and gauge-mediated supersymmetry breaking. One of the distinguishing features of the MRSSM…

High Energy Physics - Phenomenology · Physics 2018-07-04 Carlos Alvarado , Antonio Delgado , Adam Martin

We study the constraints on the mass-splitting of the first two generations of left-handed squarks obtained from Delta M_K, epsilon_K and D mixing. The different contributions from gluino, neutralino and chargino diagrams are examined in…

High Energy Physics - Phenomenology · Physics 2010-05-25 Andreas Crivellin , Momchil Davidkov

I point out several terms in the low energy effective Lagrangian of the Pyramid Scheme, which were missed in a previous analysis of the phenomenological consequences of the model. They lead to a Dirac contribution to the gluino mass, much…

High Energy Physics - Phenomenology · Physics 2013-11-19 T. Banks
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