Conveners
Collider
- Georg Ralf Weiglein (Deutsches Elektronen-Synchrotron (DE))
Collider
- Mark Dayvon Goodsell (Ecole Polytechnique (FR))
Andrew Spray
(CoEPP, University of Melbourne)
28/05/2014, 14:30
SuSy and other BSM phenomenology
Parallel Session talk
We investigate the discovery prospects of Abelian hidden sectors in lower-energy fixed-target and high-precision experiments. We focus on a minimal supersymmetric realization consisting of an Abelian vector multiplet, coupled to hypercharge by kinetic mixing, and a pair of chiral Higgs multiplets. This simple theory can give rise to a broad range of experimental signals, including both...
José Francisco Zurita
(University of Zurich)
28/05/2014, 14:50
SuSy and other BSM phenomenology
Parallel Session talk
Chargino and neutralino (electroweakino) searches at the LHC in the multi-lepton plus missing energy topology lose sensitivity in the case of small mass splitting between the mass eigenstates. In this talk I will discuss (arXiv: 1312.7350) how the monojet searches, in combination with the presence of soft leptons, can be used to probe the parameter space. Electroweakino masses up to 200 GeV...
Ramona Groeber
(K)
28/05/2014, 15:10
SuSy and other BSM phenomenology
Parallel Session talk
In supersymmetric scenarios with small mass differences between the stop and the lightest supersymmetric particle, assumed to be the lightest neutralino, the light stop can decay via a flavour-changing decay $\tilde{t}_1\to c\tilde{\chi}_1^0$ or via a four-body decay $\tilde{t}_1\to b\tilde{\chi}_0f\bar{f}'$.
For the decay $\tilde{t}_1\to c \tilde{\chi}_1^0$ to occur already at
tree level,...
Dr
Kamila Kowalska
(NCBJ, Warsaw)
28/05/2014, 15:30
SuSy and other BSM phenomenology
Parallel Session talk
We investigate the impact of direct LHC SUSY searches on the parameter
space of three natural scenarios in the MSSM.
In the first case the spectrum consists of light stops, sbottoms, and
Higgsino-like neutralinos, while the other particles are assumed to be out
of the experimental reach. In the second case we consider an additional
light gluino. Finally we study a more complex spectrum...
Andrew Williams
28/05/2014, 15:50
SuSy and other BSM phenomenology
Parallel Session talk
We present a Bayesian analysis of the CMSSM and NUHM using the latest experimental data and numerical tools. We map the favoured regions of posterior probability in light of the latest data from the LHC and dark matter searches. We analyse the effect of corrections to the light higgs mass beyond the 2-loop order using $\tt FeynHiggs$. The experimental impact from the direct searches for...
Jonas Lindert
28/05/2014, 16:40
SuSy and other BSM phenomenology
Parallel Session talk
We investigate the current status of the light neutralino dark matter scenario within the minimal supersymmetric standard model (MSSM) taking into account latest results from the LHC. A discussion of the relevant constraints, in particular from the dark matter relic abundance, leads us to manageable simplified models defined by a subset of MSSM parameters. Within these simplified model we...
Federico Dradi
(G)
28/05/2014, 17:00
Collider Physics
Parallel Session talk
We consider scenarios of gravitino LSP and DM with stop NLSP both within R-parity conserving and R-parity violating supersymmetry (RPC and RPV SUSY, respectively). We discuss cosmological bounds from Big Bang Nucleosynthesis (BBN) and the gravitino abundance and then concentrate on the signals of long-lived stops at the LHC as displaced vertices or metastable particles. Finally we discuss how...
Dr
Jose Juknevich
(SISSA)
28/05/2014, 17:20
Collider Physics
Parallel Session talk
We study the phenomenology of new color octet vector resonances, heavy gluons, in models of strong electroweak symmetry breaking. Motivated by the Higgs discovery, realistic models of strong electroweak symmetry breaking are likely to contain relatively light new vector-like quarks, the top partners. We point out the importance of heavy gluon decays to top partner pairs that were overlooked in...
Dr
alberto tonero
(ICTP-SAIFR)
28/05/2014, 17:40
Collider Physics
Parallel Session talk
If the top quark is a composite state made out of some constituents, its interaction with the gluon will be modified. We introduce the leading effective operators that contribute to the radius and anomalous magnetic moment of the top quark and derive bounds by studying their effect on the cross section for $t \bar t$ production at the Tevatron and the LHC. In addition, we also include...
