21-26 July 2014
Renold Building
Europe/London timezone
Models of SUSY
Place
Location: Renold Building
Date:
from 21 Jul 14:30 to 25 Jul 18:00
Conveners
-
21 Jul 14:30 - 15:50
- Carena, Marcela
-
21 Jul 16:30 - 18:10
- Prof. Allanach, Ben (University of Cambridge)
-
22 Jul 14:30 - 15:50
- King, Steve (University of Southampton)
-
22 Jul 16:30 - 18:00
- Dr. Miller, David (University of Glasgow)
-
24 Jul 14:30 - 15:50
- Dr. Belyaev, Alexander (Southampton University)
-
25 Jul 14:30 - 15:50
- Prof. Wagner, Carlos (The University of Chicago and Argonne National Laboratory)
-
25 Jul 16:30 - 18:00
- Prof. Baer, Howard (University of Oklahoma)
Timetable | Contribution List
Displaying 22
contributions
out of
22
We consider a supersymmetric theory in an arbitrary 2+1 dimensional curved background containing a U(1) and a Dirac spin-1/2 fields. The action is a Chern-Simons form for a connection of the OSp(2|2) group. All the fields (gauge and matter) enter as parts of the connection, that transforms in the adjoint representation of the gauge group. The system is off-shell invariant under supersymmetry. Alth
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Presented by Dr. Pedro ALVAREZ
on
25/07/2014
at
14:30
The discovery of a standard-model-like Higgs at 126 GeV and the absence of squark signals thus far at the LHC both point towards a mini-split spectrum for supersymmetry, but realizing this spectrum in a simple, concrete model is nontrivial. I will describe a complete model for mini-split supersymmetry based on gauge mediation with the auxiliary group, the group of anomaly-free continuous symmetrie
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Presented by Mr. Yonatan KAHN
on
21/07/2014
at
16:50
We study a supersymmetric scenario with a quasi exact R-symmetry in light of the discovery of a Higgs resonance with a mass of 125 GeV. In such a framework, the additional adjoint superfields, needed to give Dirac masses to the gauginos, contribute both to the Higgs mass and to electroweak precision observables. We analyze the interplay between the two aspects, finding regions in parameter space i
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Presented by Mr. Thomas GREGOIRE
on
22/07/2014
at
16:30
I will talk about an SU(5) SUSY GUT model with a noncompact horizontal symmetry SU(1,1). When doublet-triplet mass splitting is naturally realized via the spontaneous horizontal symmetry breaking, the contribution to proton decays via the colored Higgses is highly suppressed. This talk is based on a paper PTEP 2013, 123B01 (arXiv:1304.5215 [hep-ph]).
Presented by Dr. Naoki YAMATSU
on
21/07/2014
at
15:10
As it has been shown in the literature, triplet extended Higgs sectors suffer from fine tuning issues not present in the usual SM. These problems were solved in the Georgi-Macachek (GM) model by introducing a custodially invariant triplet extended Higgs sector. The quadratic divergences that arise in the corrections to the rho parameter in the GM model disappear when making it supersymmetric. Sinc
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Presented by Mr. Mateo GARCíA PEPIN
on
21/07/2014
at
13:30
With the discovery of a 125 GeV Standard Model (SM) like Higgs boson
and rising lower bounds on the masses of superpartners, minimal models of low energy supersymmetry (SUSY) appear to be increasingly fine tuned. In the Minimal Supersymmetric Standard Model (MSSM) large stop masses, needed to obtain the observed Higgs mass, give a significant contribution to fine tuning. U(1) extensions of the MS
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Presented by Mr. Dylan HARRIES
on
21/07/2014
at
14:50
The discovery of Higgs at 125 GeV has put strong constraints on gauge mediation in supersymmetric models. We consider minimal models of gauge mediated supersymmetry breaking with an extra U(1) factor in addition to the Standard Model gauge group. A U(1) charged, Standard Model singlet is assumed to be present which allows for an additional NMSSM like coupling, λHuHdS. The U(1) is assumed to be
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Presented by Mr. Venkata Suryanarayana MUMMIDI
on
21/07/2014
at
16:30
We discuss supersymmetric Grand Unification under the groups SU(5) and SO(10) within the context of fine tuning. We show that models with non-universal gaugino masses, as one would expect from nontrivial breaking mechanisms, can avoid fine-tuning in the soft susy mass parameters (though not with respect to the mu parameter). We discuss scenarios that avoid all experimental constraints and give the
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Presented by Dr. David MILLER
on
25/07/2014
at
13:30
We consider a situation where the hidden sector is parametrised by two hierarchical F-terms: while both of them participates in gravity mediation only one participates in the the minimal gauge mediation. The gravitational sector can contribute a large A_t such that a 125 GeV Higgs is possible with light stops. We present an explicit model where this scenario can be realised. We provide semi-analyt
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Presented by Mr. Venkata Suryanarayana MUMMIDI
on
21/07/2014
at
16:10
We study SUSY models in the context of LHC searches and LHC exclusion bounds and explore models in the parameter range that are accessible at the future runs of the LHC and at a future Linear Collider. We study the impact of precision measurements of masses, cross sections and further observables, for instance as forward-backward asymmetries, to determine the fundamental SUSY parameters for dark m
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Presented by Dr. Gudrid MOORTGAT-PICK
After the first run of the LHC and the last results on direct supersymmetry searches from ATLAS and CMS, the lack of evidence of new particles is causing some tension for several minimal models of supersymmetry. The current limits push the masses of most supersymmetric particles above the TeV scale, which requires a troubling amount of fine tuning in order for SUSY to be a solution to the stabilit
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Presented by Mr. Tomas GONZALO
on
22/07/2014
at
14:30
Type: Quark Flavour Violation: SM and Beyond
Session:
Models of SUSY
Track: Quark Flavour Violation: SM and Beyond
Large-field inflation is an interesting and predictive scenario. Its
non-trivial embedding in supergravity was intensively studied in the
recent literature, whereas its interplay with supersymmetry breaking has
been less thoroughly investigated. We consider the minimal viable model
of chaotic inflation in supergravity containing a stabilizer field, and
add a Polonyi field. Furthermore, we stu
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Presented by Mr. Lucien HEURTIER
on
22/07/2014
at
14:10
We propose a framework of R-parity violating supersymmetry in a 5D
warped space where the Higgs fields live on the IR brane. Quark and lepton multiplets are located in the bulk so that the Yukawa hierarchies arise from their wavefunction profiles. For suppressing dangerous proton decay, we impose a discrete lepton number symmetry on the theory while baryon number conservation is not assumed, whic
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Presented by Dr. Yuichiro NAKAI
on
22/07/2014
at
14:50
We present a comparative and systematic study of the fine tuning in the Higgs sector of three scale-invariant NMSSM models: the first being the standard Z_3-invariant NMSSM; the second is the NMSSM with additional matter filling 3(5+5*) representations of SU(5) and is called the NMSSM+; while the third model comprises 4(5+5*)and is called the NMSSM++. Naively, one would expect the fine tuning in t
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Presented by Mr. Maien BINJONAID
on
22/07/2014
at
16:50
We consider the implications of the $E_6$ inspired
supersymmetric (SUSY) models with an additional
$U(1)_N$ gauge symmetry under which right--handed
neutrinos. We introduce a mechanism to relax the rigid structure, allowing non-standard Higgs decays into pseudoscalrs.
Presented by Dr. Peter ATHRON
on
24/07/2014
at
13:30
$U(1)$ extensions of the minimal supersymmetric (SUSY) standard model (MSSM) there can solve the $\mu$-problem of the MSSM and give extra $F$ and $D$ term contributions to the Higgs mass. For such models there is a simple mechanism that splits the $Z^\prime$ mass from the SUSY scale allowing for sfermions which are significantly lighter that the $Z'$ mass. This mechanism can also result in ligh
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Presented by Dr. Roman NEVZOROV
We study the decays of the SM-like Higgs state within the
$E_6$ inspired supersymmetric (SUSY) model based on the
SM gauge group together with an extra $U(1)_{N}$ gauge
symmetry under which right--handed neutrinos have zero
charge. To ensure anomaly cancellation and gauge
coupling unification the low energy matter content
of this SUSY model involves three $27$ representations
of $E_6
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Presented by Prof. Sandip PAKVASA
Susyno is a Mathematica package developed to calculate the renormalization group equations of a supersymmetric model, requiring as input only its defining elements (gauge group and superfield representations, essentially). To achieve this, various functions were implemented to calculate group theoretical quantities --- valid for any gauge group and field content --- such as the explicit representa
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Presented by Mr. Renato FONSECA
on
25/07/2014
at
13:50
We analyze the corrections to various F-term inflation models induced by a supersymmetrically stabilized Kähler modulus. We present general expressions for both small-field and large-field (chaotic) inflation models. Furthermore, we investigate the implications and constraints of supersymmetry breaking after
Presented by Mr. Clemens WIECK
on
25/07/2014
at
14:10
We study the most general scalar potential of the Georgi-Machacek model, which adds isospin-triplet scalars to the Standard Model (SM) in a way that preserves custodial SU(2) symmetry. We show that this model possesses a decoupling limit, in which the predominantly-triplet states become heavy and degenerate while the couplings of the remaining light neutral scalar approach those of the SM Higgs b
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Presented by Kunal KUMAR
on
22/07/2014
at
17:10
The Triplet extension of the MSSM (TMSSM) alleviates the little hierarchy problem and can provide SM-like Higgs signatures even in the presence of a rather light CP-odd Higgs. It is also compatible with enhancements in the gamma+gamma and gamma+Z decays of the CP-even Higgs. In this talk we review these issues. In particular we quantify the above loop-induced enhancements, and we determine how the
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Presented by Germano NARDINI
on
24/07/2014
at
14:10
We present an updated analysis of the CMSSM and the NUHM using the latest experimental data and numerical tools. We map out favored regions of Bayesian posterior probability in light of data from the LHC, flavor observables, the relic density and dark matter searches. We present some updated features with respect to our previous analyses: we include the effects of corrections to the light Higgs ma
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Presented by Dr. Andrew WILLIAMS
on
24/07/2014
at
13:50