TY  - JOUR
A1  - Dreiner, Herbi K.
A1  - Krauss, Manuel E.
A1  - O'Leary, Ben
A1  - Opferkuch, Toby
A1  - Staub, Florian
T1  - Validity of the CMSSM interpretation of the diphoton excess
JF  - Physical Review D
N2  - It has been proposed that the observed diphoton excess at 750 GeV could be explained within the constrained minimal supersymmetric standard model via resonantly produced stop bound states. We reanalyze this scenario critically and extend previous work to include the constraints from the stability of the electroweak vacuum and from the decays of the stoponium into a pair of Higgs bosons. It is shown that the interesting regions of parameter space with a light stop and Higgs of the desired mass are ruled out by these constraints. This conclusion is not affected by the presence of the bound states because the binding energy is usually very small in the regions of parameter space which can explain the Higgs mass. Thus, this also leads to strong constraints on the diphoton production cross section which is in general too small.
KW  - Minimal supersymmetric model
KW  - 2-loop level
KW  - Bound-states
KW  - Higgs-boson
KW  - MSSM
KW  - Mass
KW  - Spheno
KW  - Sarah
KW  - Spectrum
KW  - Breaking
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-187429
VL  - 94
IS  - 5
ER  - 
TY  - JOUR
A1  - Hirsch, Martin
A1  - Krauss, Manuel E.
A1  - Opferkuch, Toby
A1  - Porod, Werner
A1  - Staub, Florian
T1  - A constrained supersymmetric left-right model
JF  - JOURNAL OF HIGH ENERGY PHYSICS
N2  - We present a supersymmetric left-right model which predicts gauge coupling unification close to the string scale and extra vector bosons at the TeV scale. The subtleties in constructing a model which is in agreement with the measured quark masses and mixing for such a low left-right breaking scale are discussed. It is shown that in the constrained version of this model radiative breaking of the gauge symmetries is possible and a SM-like Higgs is obtained. Additional CP-even scalars of a similar mass or even much lighter are possible. The expected mass hierarchies for the supersymmetric states differ clearly from those of the constrained MSSM. In particular, the lightest down-type squark, which is a mixture of the sbottom and extra vector-like states, is always lighter than the stop. We also comment on the model’s capability to explain current anomalies observed at the LHC.
KW  - supersymmetry
KW  - phenomenology
KW  - LHC
Y1  - 2016
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-168016
VL  - 03
IS  - 009
ER  -