## Supersymmetry

In modern physics symmetries play a central role - like in arts - because the principles of nature are manifested by them. The most general symmetry of the laws of nature is called Supersymmetry (SUSY). It is a symmetry between matter particles (fermions) and force particles (bosons) and it offers the possibility of imbedding our today´s knowledge about the basic structure of matter (the so-called Standard Model) into a larger, more general theory.

In a supersymmetric theory fermions and bosons appear pairwise. If nature is supersymmetric, there is a supersymmetric "doppelgänger" state to every presently known elementary particle. The search for SUSY is one of the prime science goals of LHC at CERN and motivates the construction of future Linear electron-positron colliders.

Presently, our group investigates the following cases:

• SUSY phenomenology at LHC and at a future Linear e+e- collider
• SUSY-Higgs decays
• Radiative corrections to processes with SUSY particles
• Quark flavour violation (QFV)
• Gravitino physics
• Two Higgs Doublett models
• CP violation in SUSY

Our group was supported from 2014 - 2016 by the grant P 26338-N27 (see final report) from the Austrian Science Fund (FWF).

### Former Group Members

• Elena Ginina, Postdoc financed by FWF, 2014-2016, now at the ÖAW

### Two-body decays of gluino at full one-loop level in the quark-flavour violating MSSM

Helmut Eberl, Elena Ginina, Keisho Hidaka
(2017) ,  25-03-17

### The decays $h^0 \to b \bar{b}$ and $h^0 \to c \bar{c}$ in the light of the MSSM with quark flavour violation

H. Eberl, E. Ginina, A. Bartl, K. Hidaka, W. Majerotto
JHEP 1606 (2016) 143 ,  23-06-16

### GravitinoPack and decays of supersymmetric metastable particles

Helmut Eberl, Vassilis C. Spanos
Comput. Phys. Commun. 202 (2016) 310 ,  25-05-16

### h0 -> c cbar as a test case for quark flavor violation in the MSSM

Helmut Eberl, Elena Ginina, Walter Majerotto, A. Bartl, K. Hidaka
Phys.Rev. D91 (2015) 015007 ,  12-11-14

### Flavour violating bosonic squark decays at LHC

Helmut Eberl, Elena Ginina, Walter Majerotto, A. Bartl, B. Herrmann, K. Hidaka, W. Porod
Int. J. Mod. Phys. A29 (2014) 1450035 ,  20-03-14