Search for chargino and stop (2LOS) with Run2 data
The content in the AN-19-256 referred to in the following answers has been implemented in
v2
.
- Which triggers are used in the analysis?
- Tables summarizing the trigger paths used in the analysis have been included in the Appendix B of AN-19-256.
-
For the normalization of WZ, ZZ, and ttZ production, you measure global scale factors in suitable control regions with ptmiss>160 GeV and use them in all the search regions (slides 14 to 16). Is there any dependence of these scale factors on the ptmiss and jet multiplicity bins used to define the search regions?
- We compare observed and expected yields as a function of ptmiss and jet multiplicity in the control regions used to study the WZ, ZZ, and ttZ backgrounds in Sections 5.2.1, 5.2.2, and 5.2.3 of AN-19-256, respectively. No significant trend is observed.
- We modify the fit used to extract the signal in our analysis, by adding the WZ, ZZ, and ttZ control regions to it, and letting the fit itself to determine the normalization of these processes in each ptmiss and jet multiplicity bin (for ttZ production, only ptmiss bins are considered, as the corresponding control region is defined by requiring at least one b-tagged jet; this process is anyway relevant only in search regions with b-tagged jets). The new approach yields very similar (blinded) exclusion regions for the T2tt and the TChipmSlepSnu models (as before, black lines refer to the new fit with WZ, ZZ, and ttZ control regions, while red lines refer to the original fit).
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PabloMatorrasCuevas - 2020-12-14
This topic: Sandbox
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Topic revision: r9 - 2021-07-29 - LucaScodellaro