Conveners
SUSY Models
- Andrew Fowlie (Monash University)
SUSY Models
- Csaba Balazs (Monash University)
SUSY Models
- Sujeet Akula (Monash University)
SUSY Models
- Howard Baer (University of Oklahoma)
SUSY Models
- Peter Athron
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Jory Sonneveld04/07/2016, 14:00SUSY ModelsTalk
Using a global Bayesian analysis, it is shown how the results
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from searches for supersymmetry performed by CMS constrain
the Minimal Supersymmetric Standard Model (MSSM). The
study is performed within the framework of the
phenomenological MSSM (pMSSM), a 19-parameter realization
of the R-parity conserving weakscale MSSM, that captures
most of the latter’s phenomenological features and... -
Dr Shoaib Munir (KIAS, Seoul)04/07/2016, 14:20SUSY ModelsTalk
The two additional singlet-like Higgs bosons, one scalar and one pseudoscalar, of the next-to-minimal supersymmetric standard model (NMSSM) can result in some unique signatures at the Large Hadron Collider (LHC), helping establish the non-minimal nature of supersymmetry. In particular, there exists the possibility of one, or even both, of these new Higgs bosons being almost degenerate with the...
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Dylan Harries (University of Adelaide)04/07/2016, 14:40SUSY ModelsTalk
Indications from ATLAS and CMS of a potential new resonance at 750 GeV have seen a wide range of models put forward to explain the excess. Obtaining precise theoretical predictions for a given model can be a formidable computational challenge. On the other hand, relying on simpler analytical approximations often leads to important subtleties being neglected or missed. Here we describe...
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Pankaj Sharma (CoEPP, Adelaide)04/07/2016, 15:00SUSY ModelsTalk
Motivated by the naturalness and neutrino mass generation, we study a bilinear R-parity violating supersymmetric scenario with a light Higgsino-like lightest supersymmetric particle (LSP). We observe that the LSP dominantly decays to $\nu h$ in a large part of the parameter space, and thus study the pair production of electroweakinos followed by the decays $\tilde\chi^\pm_1\to \tilde\chi^0_1...
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Sven Heinemeyer (CSIC (Santander, ES))04/07/2016, 15:20SUSY ModelsTalk
New and updated SUSY fits, using the MasterCode framework, are presented. In particular, results for new GUT based models are discussed.
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Debtosh Chowdhury (INFN, Sezione di Roma)04/07/2016, 16:30SUSY ModelsTalk
The stability of the standard electroweak vacuum imposes constraints on flavor violating tri-linear soft terms which are comparable to the experimental bounds coming from the absence of the flavor changing neutral currents. Furthermore, contrary to the bounds coming from flavor changing neutral currents, the vacuum stability constraints do not decouple even if the scale of supersymmetry...
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Dylan Harries (University of Adelaide)04/07/2016, 16:50SUSY ModelsTalk
$E_6$ inspired SUSY models are a well-motivated class of models that can solve the $\mu$ problem in the MSSM and allow for the tree-level Higgs mass to be increased. In the simplest variants of these models, multiple exact and approximate discrete symmetries must be introduced for the model to be phenomenologically viable. Here we study a constrained version of a recently proposed $E_6$...
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Antonio Morais (Universities of Aveiro and Lund)04/07/2016, 17:10SUSY ModelsTalk
In this talk we propose a new supersymmetric model based on the trinification gauge group with global SU(3) flavour symmetry. We aim at solving the major issues of conventional trinification GUTs, such us multi-TeV SM fermion masses, as well as providing a natural way to introduce a SU(2)_L x SU(2)_R symmetry. We investigate whether it is possible to spontaneously break the original gauge...
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David Miller (University of Glasgow)04/07/2016, 17:30SUSY ModelsTalk
We will discuss the low energy predictions arising from a GUT scale Pati-Salam gauge group with an A4 × Z5 family symmetry. This results in four soft scalar masses at the GUT scale: one left-handed soft mass and three right-handed soft masses, one for each generation. We will show that this model can correctly describe measurements of the anomalous magnetic moment of the muon, which currently...
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Radovan Dermisek (Indiana University)05/07/2016, 14:00SUSY ModelsTalk
I discuss electroweak symmetry breaking in SUSY models with extra vectorlike fields and show that under certain simple assumptions a 125 GeV Higgs can be achieved in a natural way. Implications for the properties of the Higgs boson and other collider phenomenology are also discussed.
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Dr Julia Harz (Institut Lagrange de Paris)05/07/2016, 14:20SUSY ModelsTalk
Supersymmetric models with Dirac masses for the gauginos have both a
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solid top-down theoretical motivation and a rich phenomenology. We show
that the 750 GeV di-photon excess can be explained by the Minimal Dirac
Gaugino Supersymmetric Standard Model without introducing any additional
"ad-hoc" states. In this model, the resonance is identified with the
scalar partner of the Dirac bino. We... -
Roman Nevzorov (University of Adelaide)05/07/2016, 14:40SUSY ModelsTalk
The 750-760 GeV diphoton resonance may be identified as one or two scalars and/or
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one or two pseudoscalars contained in the two singlet superfields $S_{1,2}$
arising from the three 27-dimensional representations of $E_6$. We study the corresponding collider signature within the exceptional supersymmetric standard model (E$_6$SSM). This model is based on the SM gauge group together with an... -
Mr Junichiro Kawamura (Waseda University)05/07/2016, 15:00SUSY ModelsTalk
We investigate exclusion limits on the the non-universal gaugino mass scenario
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in the Minimal Supersymmetric Standard Model (MSSM), according the the latest results of the super-particle search at the LHC8 and the LHC13. In this scenario, suitable ratios of wino to gluino mass can realize the observed value of the Higgs boson mass, while keeping a small $\mu$ parameter.
Such a small $\mu$... -
Monoranjan Guchait (Tata Institute of Fundamental research(TIFR))05/07/2016, 15:20SUSY ModelsTalk
The next-to-minimal supersymmetric standard model (NMSSM)
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with an extended Higgs sector offers at least one Higgs boson as the
Standard model (SM) like Higgs with a mass around 125 GeV.
We revisit the mass spectrum and couplings of non-SM-like
Higgs bosons taking into consideration most relevant constraints.
We evaluate the rates of productions of these non-SM-like Higgs bosons at the LHC for... -
Jong Soo Kim (IFT Madrid)05/07/2016, 15:40SUSY ModelsTalk
We propose an NMSSM scenario that can explain the excess in the diphoton spectrum at 750 GeV recently observed by ATLAS and CMS. We show that in a certain limit with a very light pseudoscalar one can reproduce the experimental results without invoking exotic matter. The 750 GeV excess is produced by two resonant heavy Higgs bosons with masses ~750 GeV, that subsequently decay to two light...
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Matthew Dolan (University of Melbourne)05/07/2016, 16:30Dark Matter and Particle AstrophysicsTalk
We present predictions for SUSY Dark Matter searches and analyses based on the MasterCode framework.
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Yukihiro Mimura (National Taiwan University)05/07/2016, 16:50SUSY ModelsTalk
The accurate measurements of the neutrino oscillation parameters including a CP phase are
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one of the important issues to understand the fermion mass hierarchy in unification picture.
It is expected that all the elements in the neutrino mass matrix can be obtained (up to Majorana phases)
after the accurate measurements.
Before the measurements of 13-mixing and the CP phase, it was not... -
So Chigusa (The University of Tokyo)05/07/2016, 17:10SUSY ModelsTalk
We study the Yukawa unification, in particular, the unification of the Yukawa coupling constants of $b$ and $\tau$, in the framework of supersymmetric (SUSY) model. We concentrate on the model in which the SUSY breaking scalar masses are of the order of the gravitino mass while the gaugino masses originate from the effect of anomaly mediation and hence are one-loop suppressed relative to the...
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Dr Andrew Fowlie (Monash University)05/07/2016, 17:30SUSY ModelsTalk
The discovery of a 125 GeV Higgs-like boson and null results in searches for new physics at the LHC have lead to renewed interest in next-to-minimal supersymmetric models and doubts about traditional measures of fine-tuning in supersymmetric models. We investigate fine-tuning in next-to-minimal and minimal supersymmetric models with Bayesian statistics by picking non-informative priors for...
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Oscar Manuel Vives Garcia (Instituto de Fisica Corpuscular (ES))07/07/2016, 14:00SUSY ModelsTalk
Flavour symmetries a la Froggatt-Nielsen provide a compelling way to explain the hierarchy of fermionic masses and mixing angles in the Yukawa sector. In Supersymmetric extensions of the SM where the breaking of Supersymmetry occurs at scales much larger than the breaking of flavour,
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this flavour symmetry must be respected not only by the Yukawas of the superpotential, but by the soft -... -
Alan Cornell07/07/2016, 14:20SUSY ModelsTalkWe explore unification and natural supersymmetry in a five dimensional extension of the standard model in which the extra dimension may be large, of the order of 1-10 TeV. Power law running generates a TeV scale At term allowing for the observed 125 GeV Higgs and allowing for stop masses below 2 TeV, compatible with a natural SUSY spectrum. We supply the full one-loop RGEs for various models...Go to contribution page
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Matthew Talia (University of Sydney)07/07/2016, 14:40SUSY ModelsTalk
Minimal Supersymmetry offers an explanation for the Hierarchy Problem in the Standard Model of Particle Physics, however still requires fine tuning in order to receive the correct higgs mass. We can consider compressed spectrum SUSY, where we can decouple the sparticle sector from the electroweak physics and still maintain a light higgs mass. The phenomenology of such situations, including...
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Roman Nevzorov (University of Adelaide)07/07/2016, 15:00SUSY ModelsTalk
In $N=1$ supergravity (SUGRA) supersymmetric (SUSY) and non-supersymmetric
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Minkowski vacua originating in the hidden sector can be degenerate. This allows for
consistent implementation of the multiple point principle (MPP) assumption.
We present no--scale inspired SUGRA model where the MPP assumption is realised
at the tree--level without extra fine-tuning. In the supersymmetric phase in... -
Partha Konar (Physical Research Laboratory, Ahmedabad, Gujarat-380 009, INDIA)07/07/2016, 15:20SUSY ModelsTalk
A compressed spectrum is seen as an natural explanation for the elusiveness of low-energy supersymmetry at the LHC. Some characteristic signals, such as mono-jet + MET, had been accepted as its trademark signals although investigations suggested that lower limits on the supersymmetric particle masses are quite stringent in spite of compression. Also, most compressed SUSY scenarios studied so...
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SUSY ModelsTalk
We present a supersymmetric version of a two- eld relaxion model that naturalizes tuned versions of supersymmetry. This arises from a relaxion mechanism that does not depend on QCD dynamics and where the relaxion potential barrier height is controlled by a second axion-like eld. During the cosmological evolution, the relaxion rolls with a nonzero value that breaks supersymmetry...
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Prof. Utpal Chattopadhyay (Indian Association for the Cultivation of Science)SUSY ModelsTalk
In this analysis we explore the phenomenological constraints of models
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with non-holomorphic soft SUSY breaking terms in a beyond the MSSM scenario
having identical particle content. The model referred as NHSSM shows various
promising features like the possibility of a strong reduction in electroweak fin
e-tuning even for a scenario of a heavy higgsino type of LSP, a fact that is...