CERN Accelerating science

Article
Report number arXiv:1809.04517 ; UTTG-09-18 ; CERN-TH-2018-203 ; UH-511-2018-1295
Title Enhancing the discovery prospects for SUSY-like decays with a novel kinematic variable
Author(s) Debnath, Dipsikha (Florida U. ; Rutgers U., Piscataway) ; Gainer, James S. (Hawaii U.) ; Kilic, Can (Texas U.) ; Kim, Doojin (CERN ; Arizona U.) ; Matchev, Konstantin T. (Florida U.) ; Yang, Yuan-Pao (Texas U.)
Publication 2019-05-02
Imprint 2018-09-12
Number of pages 20
Note 20 pages, 13 figures. v2: matches published version
In: JHEP 05 (2019) 008
DOI 10.1007/JHEP05(2019)008
Subject category hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology
Abstract The lack of a new physics signal thus far at the Large Hadron Collider motivates us to consider how to look for challenging final states, with large Standard Model backgrounds and subtle kinematic features, such as cascade decays with compressed spectra. Adopting a benchmark SUSY-like decay topology with a four-body final state proceeding through a sequence of two-body decays via intermediate resonances, we focus our attention on the kinematic variable $\Delta_{4}$ which previously has been used to parameterize the boundary of the allowed four-body phase space. We highlight the advantages of using $\Delta_{4}$ as a discovery variable, and present an analysis suggesting that the pairing of $\Delta_{4}$ with another invariant mass variable leads to a significant improvement over more conventional variable choices and techniques.
Copyright/License publication: (License: CC-BY-4.0)
preprint: (License: arXiv nonexclusive-distrib 1.0)



Corresponding record in: Inspire


 Δημιουργία εγγραφής 2018-09-14, τελευταία τροποποίηση 2022-03-31


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