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Related papers: The 14 TeV LHC Takes Aim at SUSY: A No-Scale Super…

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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

We celebrate the recent Higgs discovery announcement with our experimental colleagues at the LHC and look forward to the implications that this success will bring to bear upon the continuing search for supersymmetry (SUSY). The model…

High Energy Physics - Phenomenology · Physics 2012-10-31 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

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

High Energy Physics - Phenomenology · Physics 2014-08-26 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

We take stock of the No-Scale F-SU(5) model's experimental status and prospects in the light of results from LHC, Planck, and XENON100. Given that no conclusive evidence for light Supersymmetry (SUSY) has emerged from the 7, 8 TeV collider…

High Energy Physics - Phenomenology · Physics 2013-10-15 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 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

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

In our recent paper entitled "The return of the King: No-Scale ${\cal F}$-$SU(5)$", we showed that the model space supporting the most favorable phenomenology should have been probed in 2016 at the LHC2, with an even further reach into this…

High Energy Physics - Phenomenology · Physics 2017-08-28 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos

The magic couple of SUSY and GUT still appears the most elegant and predictive physics concept beyond the Standard Model. Since up to now LHC found no evidence for supersymmetric particles it becomes of particular relevance to determine an…

High Energy Physics - Phenomenology · Physics 2015-09-30 Zurab Berezhiani , Marco Chianese , Gennaro Miele , Stefano Morisi

We present the reach of the Large Hadron Collider (LHC) into the parameter space of No-Scale F-SU(5), starting our analysis with the current operating energy of \sqrt{s} = 7 TeV, and extending it on through the bright future of a 14 TeV…

High Energy Physics - Phenomenology · Physics 2012-02-16 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

The ${\cal F}$-lipped $SU(5)\times U(1)_X$ Grand Unified Theory (GUT) supplemented by TeV-scale vector-like particles from ${\cal F}$-theory, together dubbed ${\cal F}$-SU(5), offers a natural multi-phase unification process which suggests…

High Energy Physics - Phenomenology · Physics 2011-05-10 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

We consider the possibility that the muon g-2 anomaly, $\delta(g-2)$, finds its origins in low energy supersymmetry (SUSY). In the general MSSM the parameter space consistent with $\delta(g-2)$ and correct dark matter relic density of the…

High Energy Physics - Phenomenology · Physics 2015-07-06 Kamila Kowalska , Leszek Roszkowski , Enrico Maria Sessolo , Andrew J. Williams

Under the minimal SUSY standard model (MSSM), the discrepancy in the muon g-2 suggests the SUSY particles are of order 100 GeV, which is also supported by discussions on the little hierarchy problem. However, the LHC experiments have found…

High Energy Physics - Phenomenology · Physics 2013-05-06 Sho Iwamoto

While LHC has discovered a very Standard Model-like Higgs boson of mass m_h~ 125 GeV, no solid signal for physics beyond the Standard Model has emerged so far at LHC or at WIMP seach experiments. For the case of weak scale supersymmetry…

High Energy Physics - Phenomenology · Physics 2020-12-30 Howard Baer , Vernon Barger , Shadman Salam , Dibyashree Sengupta , Kuver Sinha

We establish that the light Higgs boson mass in the context of the No-Scale Flipped SU(5) GUT with TeV scale vector-like matter multiplets (flippons) is consistent with m_h = 125.5+-0.5 GeV in the region of the best supersymmetry (SUSY)…

High Energy Physics - Phenomenology · Physics 2012-12-11 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

We present a contemporary perspective on the String Landscape and the Multiverse of plausible string, M- and F-theory vacua. In contrast to traditional statistical classifications and capitulation to the anthropic principle, we seek only to…

High Energy Physics - Phenomenology · Physics 2015-03-17 Tianjun Li , James A. Maxin , Dimitri V. Nanopoulos , Joel W. Walker

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 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

We investigate the possibility of testing supergravity unified models with scalar masses in the range 50-100 TeV and much lighter gaugino masses at the Large Hadron Collider. The analysis is carried out under the constraints that models…

High Energy Physics - Phenomenology · Physics 2017-10-18 Amin Aboubrahim , Pran Nath
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