Description
- Direct searches of the production of new particles (SUSY, Z', heavy quarks, ....)
Bastien Luca Muster
(Ecole Polytechnique Federale de Lausanne (CH))
04/03/2015, 17:06
A search is presented for long-lived particles with a mass between 25 and 50 GeV/c^2 and a lifetime between 1 and 200ps in a sample of proton-proton collisions at a centre-of-mass energy of \sqrt{s} = 7TeV, corresponding to an integrated luminosity of 0.62fb^{-1}, collected by the LHCb detector. The particles are assumed to be pair-produced by the decay of a Standard Model-like Higgs boson....
Emine Gurpinar
(Cukurova University (TR))
04/03/2015, 17:26
A search for resonances and quantum black holes is performed using the dijet mass spectra measured in proton-proton collisions at √s = 8 TeV with the CMS detector at the LHC. The data set corresponds to an integrated luminosity of 19.7 fb−1. In a search for narrow resonances that couple to quark-quark, quark-gluon, or gluon-gluon pairs, model independent upper limits, at 95% confidence level,...
Klaas Ole Padeken
(Rheinisch-Westfaelische Tech. Hoch. (DE))
04/03/2015, 17:27
Search for dark matter in the mono-X channels (mono-lepton, mono-jet, mono-photon) with the full 2012 dataset. Exclusion limits have been set using both, vector- and axial-vector couplings. Interpretations have been performed in the EFT approach (where the mediator is not modelled) as well as scanning mediator parameters. The poster should summarize these three channels and show the complete...
Mr
Michaël Buttignol
(Institut Pluridisciplinaire Hubert Curien (IPHC))
04/03/2015, 17:28
We explore new physics scenarii where a top quark is produced together with missing transverse energy. These classes of processes, called monotops, are described with an effective theory approach. The phenomenological study done to prepare the searches on real data is presented as well as a status report of searches being performed using the 8 TeV p-p collisions of the LHC.
Jui-Fa Tsai
(National Taiwan University (TW))
04/03/2015, 17:29
A search is performed for the pair-production of a heavy vector-like quark b' of charge -1/3 and its anti-particle, using data collected by the CMS experiment, from the LHC pp collisions at centre-of-mass energy of 8 TeV and corresponding to an integrated luminosity of 19.7 fb-1. We search for the b' quark decaying to a Higgs-boson and a b quark, assuming a branching ratio of 100%, in a final...
Marc Dunser
(Eidgenoessische Tech. Hochschule Zuerich (CH)),
Santiago Folgueras
(Universidad de Oviedo (ES))
04/03/2015, 17:30
Although same sign dileptons final states are very rare in the SM context, they appear naturally in many different new physics scenarios such as SUSY where two same-sign dileptons can be produced in the decay chain of supersymetric particles.
Different scenarios can be presented: Same-sign dileptons accompanied by b-quarks can arise from SUSY processes where 3rd generation quark...
Aidan Sean Randle-Conde
(Universite Libre de Bruxelles (BE)),
Giuseppe Fasanella
(Universite Libre de Bruxelles (BE))
04/03/2015, 17:31
Resonances in the dielectron and dimuon decay channels arise in many well established theories beyond the standard model, like grand unified theories (GUT) or models proposing extra spatial dimension(s). The legacy results obtained from the LHC RUN1, using the full dataset collected by the CMS experiment in 2012 from proton-proton collisions at a center-of-mass energy of 8 TeV, and...
Manuel Schreyer
(Bayerische Julius Max. Universitaet Wuerzburg (DE))
04/03/2015, 17:32
A search for supersymmetric particles in final states containing a Z boson, jets and large missing transverse momentum is presented. The data sample was collected at a centre-of-mass energy sqrt{s}=8 TeV by the ATLAS detector at the Large Hadron Collider and corresponds to an integrated luminosity of 20.3 fb^{−1}. The search targets GGM models in which Z bosons can arise in the decays of the...
William Kalderon
(University of Oxford (GB))
04/03/2015, 17:33
A search for pair production of scalar charm quarks has been performed using 20 fb-1 of data collected by the ATLAS experiment in 8 TeV proton-proton collisions at the LHC. An innovative charm tagging algorithm was used to identify jets produced by the hadronisation of a charm quark. Results for this first dedicated search for scalar charm quarks, obtained with the final state of two...
Revital Kopeliansky
(Israel Institute of Technology (IL))
04/03/2015, 17:34
Searches for heavy long-lived charged particles (LLP) were performed on a 19.1 𝑓𝑏-1 data sample from p-p collisions at √s = 8TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and limits are placed on the mass of the LLPs in various supersymmetric models: R-hadrons, directly produced charginos, stable sleptons produced directly or in cascade...
Francesco Guescini
(Universite de Geneve (CH))
04/03/2015, 17:35
