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Improving the sensitivity of stop searches with on-shell constrained invariant mass variables

Cited 20 time in webofscience Cited 17 time in scopus
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Title
Improving the sensitivity of stop searches with on-shell constrained invariant mass variables
Author(s)
Won Sang Cho; Gainer J.S.; Kim D.; Matchev K.T.; Moortgat F.; Pape L.; Park M.
Publication Date
2015-05
Journal
JOURNAL OF HIGH ENERGY PHYSICS, v.2015, no.5, pp.040
Publisher
SPRINGER
Abstract
The search for light stops is of paramount importance, both in general as a promising path to the discovery of beyond the standard model physics and more specifically as a way of evaluating the success of the naturalness paradigm. While the LHC experiments have ruled out much of the relevant parameter space, there are “stop gaps”, i.e., values of sparticle masses for which existing LHC analyses have relatively little sensitivity to light stops. We point out that techniques involving on-shell constrained M2 variables can do much to enhance sensitivity in this region and hence help close the stop gaps. We demonstrate the use of these variables for several benchmark points and describe the effect of realistic complications, such as detector effects and combinatorial backgrounds, in order to provide a useful toolkit for light stop searches in particular, and new physics searches at the LHC in general. © 2015, The Author(s)
URI
https://pr.ibs.re.kr/handle/8788114/1622
DOI
10.1007/JHEP05(2015)040
ISSN
1029-8479
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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