| ATLAS Slides | |
| Report number | ATL-PHYS-SLIDE-2012-337 |
| Title | Search for new physics in a Monojet plus missing transverse energy final state with ATLAS |
| Author(s) | Poddar, S (University of Heidelberg) |
| Corporate author(s) | The ATLAS collaboration |
| Submitted to | 11th Conference on the Intersections of Particle and Nuclear Physics, St. Petersburg (Florida), FL, USA, 28 May - 3 Jun 2012 |
| Submitted by | sahill.poddar@cern.ch on 05 Jun 2012 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN LHC ; ATLAS |
| Free keywords | EXOTICS ; JETETMISS |
| Abstract | A monojet plus large missing transverse energy final state is of interest as it is foreseen as a signal in several beyond SM physics scenarios. The search for new physics in this event topology is performed in pp collisions at √s= 7 TeV with ATLAS. The analysis is model independent and 3 kinematic regions are explored. Results from the analysis are interpreted in terms of the ADD extra dimensions model. As with every search, a major challenge is the understanding and suppression of SM backgrounds. W/Z+jet production constitutes the dominant contribution to the background for this signal. The irreducible background for this signal is Z+jet production where the Z decays to a neutrino-antineutrino pair giving rise to large missing transverse energy. The estimate for all W/Z+jet backgrounds is done using data-driven methods. Latest results from the analysis are presented using about 1 inverse femtobarn of 2011 data. |
Record created 2012-06-05, last modified 2013-02-05