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Related papers: Spinning No-Scale $\cal{F}$-$SU$(5) in the Right D…

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We describe a model named No-Scale F-SU(5) which is simultaneously capable of explaining the dual signals emerging at the LHC of i) a 124-126 GeV Higgs boson mass m_h, and ii) tantalizing low-statistics excesses in the multi-jet data which…

High Energy Physics - Phenomenology · Physics 2012-03-20 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

A discrepancy between the measured anomalous magnetic moment of the muon $(g - 2)_{\mu}$ and computed Standard Model value now stands at a combined $4.2\sigma$ following experiments at Brookhaven National Lab (BNL) and the Fermi National…

High Energy Physics - Phenomenology · Physics 2021-11-17 Joseph L. Lamborn , Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos

We compute the electroweak fine-tuning in No-Scale Supergravity for a representative supersymmetric Grand Unification Theory (GUT) model, flipped $SU(5)$ with extra vector-like $flippons$, dubbed $\cal{F}$-$SU(5)$. We find that there is no…

High Energy Physics - Phenomenology · Physics 2014-08-27 Tristan Leggett , Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

In light of recent 80-137 $\rm{fb}^{-1}$ results at the LHC Run 2 establishing a lower gluino mass limit of 2.25 TeV, we revisit the supersymmetric GUT model Flipped $SU$(5) with extra vector-like particles, known as $\cal{F}$-$SU$(5), with…

High Energy Physics - Phenomenology · Physics 2019-10-25 Thomas Ford , Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos

We study the grand unification model flipped $SU(5)$ with additional vector-like particle multiplets, or ${\cal F}$-$SU(5)$ for short, in the framework of General No-Scale Supergravity. In our analysis we allow the supersymmetry (SUSY)…

High Energy Physics - Phenomenology · Physics 2017-06-07 Dingli Hu , Tianjun Li , Adam Lux , James A. Maxin , Dimitri V. Nanopoulos

We predict the low energy signatures of a Flipped $SU(5) \times U(1)_{\chi}$ effective local model , constructed within the framework of F$-$theory based on $ A_{4} $ symmetry. The Flipped SU(5) model from F Theory in the field of particle…

High Energy Physics - Phenomenology · Physics 2024-04-15 Gayatri Ghosh

Motivated by D-brane model building, we evaluate the $\cal{F}$-$SU(5)$ model with additional vector-like particle multiplets, referred to as flippons, within the framework of No-Scale Supergravity with non-vanishing general supersymmetry…

High Energy Physics - Phenomenology · Physics 2018-11-27 Ron De Benedetti , Chuang Li , Tianjun Li , Adam Lux , James A. Maxin , Dimitri V. Nanopoulos

We revisit the viable parameter space in No-Scale ${\cal F}$-$SU(5)$, examining the Grand Unified Theory within the context of the prevailing gluino mass limits established by the LHC. The satisfaction of both the No-Scale boundary…

High Energy Physics - Phenomenology · Physics 2016-11-24 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos

We systematically construct flipped SU(5) X U(1)_X models without and with bulk vector-like particles from F-theory. To realize the decoupling scenario, we introduce sets of vector-like particles in complete SU(5) X U(1) multiplets at the…

High Energy Physics - Theory · Physics 2015-05-13 Jing Jiang , Tianjun Li , Dimitri V. Nanopoulos , Dan Xie

We study the Higgs potential in No-Scale F-SU(5), a model built on the tripodal foundations of the Flipped SU(5) x U(1)_X Grand Unified Theory, extra F-theory derived TeV scale vector-like particle multiplets, and the high scale boundary…

High Energy Physics - Phenomenology · Physics 2011-09-13 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

The little hierarchy between the GUT scale and the string scale may give us some hints that can be tested at the LHC. To achieve string-scale gauge coupling unification, we introduce additional vector-like particles. We require that these…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jing Jiang , Tianjun Li , Dimitri V. Nanopoulos

The Supergravity model named No-Scale ${\cal F}$-$SU(5)$, which is based upon the flipped $SU$(5) Grand Unified Theory (GUT) with additional TeV-scale vector-like flippon multiplets, has been partially probed during the LHC Run 1 at 7-8…

High Energy Physics - Phenomenology · Physics 2015-08-05 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

The new experiment data of muon g-2 is reported by the workers at Fermilab National Accelerator Laboratory(FNAL). Combined with the previous Brookhaven National Laboratory(BNL) E821 result, the departure from the standard model prediction…

High Energy Physics - Phenomenology · Physics 2022-04-13 Shu-Min Zhao , Lu-Hao Su , Xing-Xing Dong , Tong-Tong Wang , Tai-Fu Feng

In this Lecture we first review the basic properties that make flipped SU(5) a very economical and well motivated unified model, including some recent developments regarding the prediction for $\alpha_s$ and new implications for proton…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. Lopez , D. Nanopoulos

An additional generation of quarks and leptons and their SUSY counterparts, which are vector-like under the Standard Model gauge group but are chiral with respect to the new U(1)$_{3-4}$ gauge symmetry, are added to the Minimal…

High Energy Physics - Phenomenology · Physics 2023-06-07 Harshal Kulkarni , Stuart Raby

We present the distinctive collider signatures of No-Scale F-SU(5), a highly efficient and phenomenologically favored model built on the tripodal foundations of the F-lipped SU(5) X U(1)_X Grand Unified Theory, extra F-theory derived TeV…

High Energy Physics - Phenomenology · Physics 2015-03-19 James A. Maxin , Tianjun Li , Dimitri V. Nanopoulos , Joel W. Walker

The FNAL+BNL measurements for muon $g-2$ is $4.2\sigma$ above the SM prediction, and the Berkeley $^{133}$Cs measurement for the fine-structure constant $\alpha_{\rm em}$ leads to the SM prediction for electron $g-2$ which is $2.4\sigma$…

High Energy Physics - Phenomenology · Physics 2022-04-01 Song Li , Yang Xiao , Jin Min Yang

We study supersymmetric (SUSY) flipped $SU(5)\times U(1)$ unification, focussing on its predictions for proton decay, fermion masses and gravitational waves. We performed a two-loop renormalisation group analysis and showed that the SUSY…

High Energy Physics - Phenomenology · Physics 2024-03-05 Stephen F. King , George K. Leontaris , Ye-Ling Zhou

We investigate the low energy properties of an effective local model with flipped $SU(5)\times U(1)_{\chi}$ gauge group, constructed within the framework of F-theory. Its origin is traced back to the $SO(10)$ symmetry -- associated with a…

High Energy Physics - Phenomenology · Physics 2022-11-21 Vasileios Basiouris , George K. Leontaris

We review the No-Scale F-SU(5) model with extra TeV-scale vector-like flippon multiplets and associated collider phenomenology relating to the search for supersymmetry at the LHC. The model framework possesses the rather unique capacity to…

High Energy Physics - Phenomenology · Physics 2013-12-18 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker
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