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Supersymmetric grand unified models based on SO(10) gauge symmetry have many desireable features, including the unification of Yukawa couplings. Using D-term contributions to scalar masses arising from the breakdown of SO(10), Yukawa…

High Energy Physics - Phenomenology · Physics 2009-11-07 Howard Baer , Javier Ferrandis

We construct lists of supersymmetric models with extended gauge groups at intermediate steps, all of which are based on SO(10) unification. We consider three different kinds of setups: (i) The model has exactly one additional intermediate…

High Energy Physics - Phenomenology · Physics 2013-04-17 C. Arbelaez , R. M. Fonseca , M. Hirsch , J. C. Romao

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

Superheavy threshold corrections to the matching condition between matter Yukawa couplings of the effective Minimal Supersymmetric Standard Model (MSSM) and the New Minimal Supersymmetric (SO(10)) GUT(NMSGUT) provide a novel and generic…

High Energy Physics - Phenomenology · Physics 2014-04-01 Charanjit S. Aulakh , Ila Garg , Charanjit K. Khosa

We study the problem of selecting between different mechanisms of supersymmetry breaking in the Minimal Supersymmetric Standard Model using current data. We evaluate the Bayesian evidence of four supersymmetry breaking scenarios: mSUGRA,…

High Energy Physics - Phenomenology · Physics 2010-09-30 S. S. AbdusSalam , B. C. Allanach , M. J. Dolan , F. Feroz , M. P. Hobson

A new superstring-motivated framework for a treatment of SU(N) SUSY GUTs is argued. We show that all the present difficulties of the minimal supersymmetric SU(5) model can successfully be overcome with a new renormalizable…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. L. Chkareuli

It is known that in the absence of a gauge singlet field, a specific class of supersymmetry (SUSY) breaking non-holomorphic (NH) terms can be soft breaking in nature so that they may be considered along with the Minimal Supersymmetric…

High Energy Physics - Phenomenology · Physics 2018-02-01 Utpal Chattopadhyay , Debottam Das , Samadrita Mukherjee

We study $3$rd family Yukawa unification in the context of supersymmetric (SUSY) $\mathrm{SO}(10)$ GUTs and $\mathrm{SO}(10)$-motivated boundary conditions for the SUSY-breaking soft terms. We consider $\mu<0$ such that the SUSY…

High Energy Physics - Phenomenology · Physics 2020-06-24 Stefan Antusch , Christian Hohl , Vasja Susic

Within the Constrained Minimal Supersymmetric Model (CMSSM) it is possible to predict the low energy gauge couplings and masses of the 3 generation particles from a few supergravity inspired parameters at the GUT scale. Moreover, the CMSSM…

High Energy Physics - Phenomenology · Physics 2007-05-23 W. de Boer

A survey is made of some recent ideas and progress in the phenomenological applications of Supersymmetry (SUSY). We describe the success of SUSY-GUT models, the expected experimental signatures and present limits on SUSY partner particles,…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Barger , R. J. N. Phillips

We report on a global CKM matrix analysis taking into account most recent experimental and theoretical results. The statistical framework (Rfit) developed in this paper advocates formal frequentist statistics. Other approaches, such as…

High Energy Physics - Phenomenology · Physics 2010-05-28 A. Hocker , H. Lacker , S. Laplace , F. Le Diberder

Previous studies of a three family Yukawa unified supersymmetric grand unified theory (SUSY GUT) with SO(10) or Pati-Salam (PS) gauge symmetry proposed by Raby and students show that this model is able to fit low energy and inflation…

High Energy Physics - Phenomenology · Physics 2017-06-28 Zijie Poh , Stuart Raby , Zi-zhi Wang

In the supersymmetric scenario known as mirage mediation (MM), the soft SUSY breaking terms receive comparable anomaly-mediation and moduli-mediation contributions leading to the phenomenon of mirage unification. The simplest MM SUSY…

High Energy Physics - Phenomenology · Physics 2017-01-24 Howard Baer , Vernon Barger , Hasan Serce , Xerxes Tata

We describe a likelihood analysis using MasterCode of variants of the MSSM in which the soft supersymmetry-breaking parameters are assumed to have universal values at some scale $M_{in}$ below the supersymmetric grand unification scale…

Recent results from ATLAS gives a Higgs mass of 125.5 GeV, further constrain already highly constrained supersymmetric models such as pMSSM or CMSSM/mSUGRA. Finding potentially discoverable and non-excluded regions of model parameter space…

High Energy Physics - Phenomenology · Physics 2013-09-05 Thomas Burgess , Jan Øye Lindroos , Anna Lipniacka , Heidi Sandaker

For a long time, the minimal supersymmetric standard model (MSSM) with light masses for the supersymmetric states was considered as the most natural extension of the Standard Model of particle physics. Consequently, a valid approximation…

High Energy Physics - Phenomenology · Physics 2017-05-30 Florian Staub , Werner Porod

What does third family ($t$-$b$-$\tau$) Yukawa unification, a typical prediction from embedding the Standard Model (SM) fermions in 16-plets of a $\mathrm{SO}(10)$ GUT, imply for the scale of the supersymmetric (SUSY) partners? Which…

High Energy Physics - Phenomenology · Physics 2025-09-18 Stefan Antusch , Shaikh Saad , Vasja Susič

We describe a methodology for testing No-Scale Supergravity by the LAT instrument onboard the Fermi Space Telescope via observation of gamma ray emissions from lightest supersymmetric (SUSY) neutralino annihilations. For our test vehicle we…

High Energy Physics - Phenomenology · Physics 2014-03-11 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

We thoroughly investigate the current status of supersymmetry in light of the latest searches at the LHC, using General Gauge Mediation (GGM) as a well-motivated signature generator that leads to many different simplified models. We…

High Energy Physics - Phenomenology · Physics 2015-06-03 Yevgeny Kats , Patrick Meade , Matthew Reece , David Shih

We briefly review the super-natural supersymmetry (SUSY), which provides a most promising solution to the SUSY electroweak fine-tuning problem. In particular, we address its subtle issues as well. Unlike the Minimal Supersymmetric Standard…

High Energy Physics - Phenomenology · Physics 2016-06-15 Tianjun Li , Shabbar Raza , Xiao-Chuan Wang