Dr
Pedro Henrique Sales de Bruin
(Uppsala University)
07/11/2017, 08:45
An overview of the structure, activities and responsibilities of the ATLAS group at
Uppsala University is presented. The topics covered range from hardware and software
upgrades for the LHC and ATLAS, performance improvements, and searches in Standard
Model and Beyond Standard Model physics.
Mr
Petar Bokan
(Uppsala University, Department of Physics and Astronomy)
07/11/2017, 09:00
The discovery of the Higgs boson by the ATLAS and CMS experiments in 2012 provided
important insight into the mechanism of electroweak symmetry breaking. In the Standard Model
(SM), a pair of Higgs bosons can be produced via top quark loops, or the Higgs boson self-
coupling. Apart from SM production modes, several beyond the Standard Model (BSM)
hypotheses predict heavy narrow width...
Katja Mankinen
(Lund University)
07/11/2017, 09:15
A search for doubly-charged Higgs bosons with pairs of prompt, isolated, high-pT
leptons with same-sign charge is presented. The search uses the pp collision data
sample corresponding to 36.1 fb-1 of integrated luminosity collected in 2015 and 2016
by the ATLAS detector at the LHC with a centre-of-mass energy of 13 TeV. No
significant evidence of signal is observed and corresponding limits...
Sebastian Baum
(Stockholm Universitet)
07/11/2017, 09:30
The Next-to-Minimal Supersymmetric Standard Model (NMSSM) augments the MSSM particle
content with an additional singlet superfield. The 125 GeV Standard Model-like Higgs
and naturalness generically prefer regions of NMSSM parameter space featuring a light
Higgs and neutralino spectrum as well as large couplings between the Higgs doublets
and the NMSSM singlet. The additional states and...
Mr
Hugo Serodio
(Lund University)
07/11/2017, 09:45
In this talk I will review some topics of composite Higgs models. These can
successfully address the origin of the Higgs boson, as a pseudo-Goldstone of a
spontaneously broken global symmetry, and flavour physics via the partial
compositeness mechanism.
Models which contain a Higgs and top partners at the same time can also contain
additional light scalars in the composite spectrum. Such...
Mr
Johan Löfgren
(Uppsala University)
07/11/2017, 10:00
A neutral and massive vector boson, often called Z', is a common feature of many
beyond standard model scenarios. The simplest such models extend the electroweak
sector of the SM with an extra U(1)-group, spontaneously broken at some higher scale.
In such extensions it is important to ensure that this classical symmetry is not
violated by quantum effects - so called anomalies. In a theory...