21-26 July 2014
Renold Building
Europe/London timezone
Precision SUSY
Place
Location: Renold Building
Date:
from 21 Jul 14:30 to 25 Jul 18:10
Conveners
-
21 Jul 14:30 - 15:50
- Dr. Miller, David (University of Glasgow)
-
21 Jul 16:30 - 18:00
- Eberl, Helmut (Institut for High Energy Physics)
-
22 Jul 14:30 - 15:50
- Dr. Lopez-Val, David (CP3 - Universite Catholique de Louvain)
-
22 Jul 16:30 - 18:00
- Prof. Dedes, Athanasios (University of Ioannina)
-
24 Jul 14:30 - 15:50
- Carena, Marcela
-
25 Jul 14:30 - 15:50
- Moortgat-Pick, gudrid (University of Hamburg)
-
25 Jul 16:30 - 18:10
- Dr. Di Vita, Stefano (Max Planck Institute for Physics, Munich (Germany))
Timetable | Contribution List
Displaying 27
contributions
out of
27
The lighter mass eigenstate (~t1) of the two top squarks, the scalar superpartners of the top quark, is extremely
difficult to discover if it is almost degenerate with the lightest neutralino (~N1). The current experimental bound
on ~t1 mass in this scenario stands only around 250 GeV. For such a light ~t1, the heavier top squark
~t2 can also be around the TeV scale. I will argue that in such a
... More
Presented by Mr. Diptimoy GHOSH
on
25/07/2014
at
15:30
We examine the two-loop QCD corrections to the neutral Higgs masses
in the MSSM by performing the full diagrammatic computation of the
top/stop contributions in a mixed OS/DRbar scheme. We include novel
results for the corresponding O(alpha alpha_s) corrections. The explicit
shifts of the Higgs self-energies with respect to their effective
potential counterparts are given in terms of a set of
... More
Presented by Dr. Stefano DI VITA
on
22/07/2014
at
15:50
We derive bounds from oblique parameters on the
dimension-6 operators of an effective field theory of
electroweak gauge bosons and the Higgs doublet. The loop-
induced contributions to the S, T, and U oblique
parameters are sensitive to these contributions and we pay
particular attention to the role of renormalization when
computing loop corrections in the effective theory. Limits
on the co
... More
Presented by Dr. Chien-Yi CHEN
on
25/07/2014
at
14:10
After the discovery of a 125 GeV Higgs boson at the LHC and the
increasing lower mass limits on supersymmetric particles, non-minimal
alternatives to the MSSM, such as the NMSSM, USSM, E6SSM etc., are
highly relevant. So it is very important to facilitate easier
exploration of such models.
In this talk the spectrum generator framework FlexibleSUSY is
presented, which creates a very fast,
... More
Presented by Mr. Alexander VOIGT
on
21/07/2014
at
17:10
We present the numerical package GravitinoPack that calculates processes involving the gravitino. GravitinoPack is written in Fortran77 and can be linked to Mathematica.
The framework is the R-parity conserving Minimal Supersymmetric Standard Model, assuming that the gravitino is unstable or the Next to Lightest Supersymmetric Particle decays to gravitino. For calculating the squared amplitude
... More
Presented by Helmut EBERL
on
25/07/2014
at
13:30
We present a full one-loop analysis of a Higgs sector of
the Minimal R-symmetric SUSY model in light of the recent reduction of
uncertainty on the W boson mass. Although EWPO put strong constrains on
this model, particularly due to the presence of a Higgs triplet, we argue that it is
possible to accommodate in it the measured mass of the Higgs boson as well as the
constraints imposed both by
... More
Presented by Mr. Wojciech KOTLARSKI
on
21/07/2014
at
16:30
We review recent progress in the calculation of the lightest CP-even MSSM Higgs boson mass. For the first time we consistently combine a high-precision diagrammatic calculation with the resummation of large logarithms from the top/stop sector.
Presented by Sven HEINEMEYER
on
24/07/2014
at
13:30
In this talk, latest results on the inclusive squark and gluino production cross sections are reported. The results include threshold resummation corrections up to next-to-next-to-leading logarithmic (NNLL) precision as well as Coulomb corrections up to second order, using Mellin-space methods. The corrections lead to significant enhancing effects and a reduction of scale dependence for most proce
... More
Presented by Mr. Christoph BORSCHENSKY
on
22/07/2014
at
14:30
After the successful completion of Run I at the LHC, experimental searches are intensively confronting Supersymmetry to data. In this context, a major call for phenomenologists
is to improve, extend and combine the different tools automating
beyond-the-standard Model (BSM) NLO calculations, which have
been developped over the past years.
In this talk we will present one example of the work
... More
Presented by Dr. David LOPEZ-VAL
on
21/07/2014
at
15:10
Results are presented for the momentum dependent two-loop contributions of order $\mathcal{O}(\alpha_s\alpha_t}$ to the masses and mixing effects in the Higgs sector of the real MSSM. They are obtained in the
Feynman-diagrammatic approach using a mixed on-shell/$\bar{DR}$ renormalization that can directly be matched onto the higher-order corrections included in the code FeynHiggs.
Several two-l
... More
Presented by Sophia BOROWKA
on
22/07/2014
at
16:10
In order to solve the hierarchy problem, the stop quark should be rather light and its mass can be close to the one of the LSP. If the mass difference of the stop to the neutralino LSP is smaller than the top mass it can only decay flavour violating (mainly to charm and neutralino). The decay is not allowed in naive MFV at tree-level and is suppressed by small CKM angels in symmetry based MFV givi
... More
Presented by Mr. Jason AEBISCHER
on
22/07/2014
at
13:50
The talk will present state of the art predictions for total production cross sections of squarks and gluinos that include for the first time a combined resummation of soft-gluon and Coulomb gluon effects at next-to-next-to leading logarithmic accuracy. The corrections can be very large, above 100 percent relative to the NLO predictions, and up to 25 percent relative to earlier NLL results. The th
... More
Presented by Christian SCHWINN
on
22/07/2014
at
13:30
We introduce the Next-to-Minimal extension of the SOFTSUSY~program
which calculates the sparticle spectrum in the Next-to-Minimal
Supersymmetric Standard Model (NMSSM). The NMSSM is an extension of
the Minimal Supersymmetric Standard Model (MSSM) with one additional
singlet superfield, which can solve the mu-problem of the MSSM and
help ameliorate the little hierarchy problem. SOFTSUSY can
... More
Presented by Dr. Peter ATHRON
on
21/07/2014
at
16:50
The search for supersymmetric version of the standard model is a central task of the Large Hadron Collider. The interpretation of the experimental data requires accurate and flexible theoretical predictions. We present a new calculation of the next-to-leading order supersymmetric-QCD corrections to the production and the decay of supersymmetric particles. In particular, we provide fully differenti
... More
Presented by Mathieu PELLEN
on
22/07/2014
at
14:10
After the discovery of a 125 GeV Higgs boson, light stop scenarios are strongly motivated. With currently having only weak constraints from the LHC for almost degenerate neutralino and stop masses, supersymmetry could still hide in this corner.
In this region of the MSSM parameter space, neutralino-stop coannihilation can also play an important role in order to meet the experimentally determined
... More
Presented by Dr. Julia HARZ
on
21/07/2014
at
14:30
In supersymmetric models, very heavy stop squarks introduce large logarithms into the computation of the Higgs boson mass. We calculate three- and four-loop next-to-next-to-leading-log corrections to the Higgs mass and compare the fixed order formulas numerically to the resummation results in order to estimate the range of supersymmetry scales where the fixed-order results are reliable. We find t
... More
Presented by Prof. Carlos WAGNER
on
22/07/2014
at
15:30
We present the most precise calculation of the W boson mass in the MSSM. We review the restrictions imposed by the experimental measurement of M_W can be placed on the MSSM parameter space with current and future experimental accuracies.
Presented by Sven HEINEMEYER
on
24/07/2014
at
15:30
We review the implementation of the renormalized MSSM with complex parameters (cMSSM). We show how the renormalization can be used via its implementation into the FeynArts/FormCalc package.
Presented by Federico VON DER PAHLEN
on
24/07/2014
at
15:10
In this talk, the latest results from CMS on searches for supersymmetry produced through electroweak production channels are presented using 20/fb of data from the 8 TeV LHC run. A variety of complementary final state signatures and methods are used to probe chargino, neutralino, and slepton production.
Presented by Santiago FOLGUERAS
on
25/07/2014
at
16:10
The production of charginos, neutralinos, or sleptons could be the dominant production mode(s) of supersymmetric particles at the LHC if strongly interacting squarks and gluinos are at very high mass scale. The talk presents the latest ATLAS results for searches for these particles using the full 2012 LHC dataset at sqrt(s)=8 TeV.
Presented by Dr. Da XU
on
21/07/2014
at
16:30
In this talk, the latest results from CMS on searches for gluino, stop and sbottom squarks are presented in final states with b-tagged jets and MET. A variety of complimentary techniques for a wide range of number of jets, HT, and MET in the final state are reviewed. The results based on up to 20/fb of data collected during the 8 TeV LHC run are presented, and interpreted in a variety of models.
Presented by Ms. Nadja STROBBE
on
25/07/2014
at
15:50
In this talk, the latest results from CMS on searches for supersymmetry in final states with photons are presented using up to 20/fb of data from the 8 TeV LHC run. A variety of complementary final state signatures and methods are used to probe gluino, squark and Electroweak SUSY production.
Presented by Prof. Gail HANSON
on
22/07/2014
at
17:30
Several Gauge mediated supersymmetry breaking scenarios predict final states characterized by the presence of photons. This talk presents recent ATLAS results for inclusive searches for supersymmetry in final states containing photons with missing transverse momentum, jets and/or light leptons. Both weak and strong production processes are searched for.
Presented by Andrew KUHL
on
25/07/2014
at
15:30
In this talk, the latest results from CMS on searches for RP violating supersymmetry or Leptoquarks are presented using 20/fb of data from the 8 TeV LHC run. Results across a wide range of final states are reviewed, and interpreted in the context of a variety of models of new physics including leptoquarks, gluinos, squarks, neutralinos, charginos and sleptons.
Presented by Mr. Halil SAKA
on
21/07/2014
at
13:30
In R-parity violating supersymmetric scenarios sparticles can be produced individually or in pairs with signatures that may be detectable at the LHC. This talk presents recent results from searches for resonant production and R-parity violating prompt signatures in multi-lepton and multi-jet final states in the data sample recorded by the ATLAS detector in 2012.
Presented by David MILLER
on
21/07/2014
at
14:50
The calculation and results of the ${\cal O}(\alpha_s\alpha_t)$ Corrections to the Higgs Masses in the NMSSM will be presented.
Our results are computed the complex NMSSM, in which all possible complex phases can appeares. This QCD contribution is important to reduce theoretical uncertainty and improve prediction of the NMSSM Higgs Masses.
Presented by Thi Nhung DAO
on
24/07/2014
at
14:50
A detailed study of top-quark polarizations and $t \bar t$ charge asymmetries, induced by stop-pair production at the LHC
and the subsequent decays $\tilde t_1 \to t \tilde \chi_1^0$, is performed within the effective description of squarks interactions,
which includes the effective Yukawa couplings and another logarithmic term encoding the supersymmetry breaking.
This effective approach is mor
... More
Presented by Dr. Ernesto ARGANDA
on
25/07/2014
at
13:50