Flaecher, H. U. (2009) Search for supersymmetry in di-jet events with novel data-driven background estimation. Il nuovo cimento C, 32 (5\6). pp. 345-353. ISSN 1826-9885
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Abstract
We present a search for supersymmetry (SUSY) in di-jet events with the CMS detector at the LHC. Our study is focused on a SUSY parameter space where squarks are pair produced and both directly decay to a quark and neutralino with the latter escaping the detector, thus leaving a missing energy signature. Although the background from QCD di-jet events is overwhelming, the particular kinematics of the SUSY events allow to define powerful discriminating variables which enable a clear separation of signal and QCD events. Therefore, the only important SM background left for this search is the invisible decay of the Z boson accompanied with two jets in the final state. This background can be estimated by utilizing a novel approach using gamma+jet events thus enabling a possible discovery of SUSY in the di-jet system with the early physics data.
| Item Type: | Article |
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| Uncontrolled Keywords: | Supersymmetry ; Quantum chromodynamics |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 30 Mar 2020 15:04 |
| Last Modified: | 30 Mar 2020 15:04 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/16774 |
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