Interpretation of Searches for Supersymmetry

Abstract

The results of searches for supersymmetry by the CMS experiment are interpreted in the framework of simplified models. The results are based on data corresponding to an integrated luminosity of 4.73 to 4.98 fb−1. The data were collected at the LHC in proton–proton collisions at a center-of-mass energy of 7 TeV. This paper describes the method of interpretation and provides upper limits on the product of the production cross section and branching fraction as a function of new particle masses for a number of simplified models. These limits and the corresponding experimental acceptance calculations can be used to constrain other theoretical models and to compare different supersymmetry-inspired analyses.

This work is documented in arXiv:1301.2175, submitted to Phys. Rev. D.

Approved Tables and Plots from SUS-11-016 ( click on plot to get .pdf )

Table 1:

Table Abbreviated Caption
tab1.png Table 1:Summary of the simplified models used in this document.

Figure 1:

http://arxiv.org/abs/1206.3949: Product of the experimental efficiency and acceptance (left) and the upper limit on the product of the cross section and branching fraction (right) for the T3lh model from the ET and HT selection (top) and from edge reconstruction (bottom). Results are shown as a function of gluino and LSP mass, with the intermediate neutralino mass set using x = 0.5.

Simplified model topology name Efficiency Limit
"MET and HT selection" h_eff_T3lh_OSshape.png h_limit_T3lh_OSshape.png
"edge reconstruction" h_eff_T3lh_OSedge.png h_limit_T3lh_OSedge.png

Figure 2:

Exclusion limits for the masses of the mother particles, for mLSP = 0 GeV (dark blue) and mmother − mLSP = 200 GeV (light blue), for each analysis, for the hadronic and razor results (left) and the leptonic results (right). The limits are derived by comparing the allowed [σ × B]UL to the theory described in the text. For the T3, T5 and TChiSlepSlep models, the mass of the intermediate particle is defined by the relation mint = x mmother + (1 − x ) mLSP . For the T3w and T5zz models, the results are presented for x = 0.25, 0.5, 0.75, while for the T3lh, T5lnu, and TChiSlepSlep models, x = 0.5. The lowest mass value for mmother depends on the particular analysis and the simplified model.

dibars

Figure 3:

Best exclusion limits for the masses of the mother particles, for mLSP = 0 GeV (dark blue) and mmother − mLSP = 200 GeV (light blue), for each simplified model, for all analyses considered. For the T3, T5 and TChiSlepSlep models, the mass of the intermediate particle is defined by the relation mint = x mmother + (1 − x ) mLSP . For the T3w and T5zz models, the results are presented for x = 0.25, 0.5, 0.75, while for the T3lh, T5lnu, and TChiSlepSlep models, x = 0.5. The lowest mass value for mmother depends on the particular analysis and the simplified model.

CMS_SMSLimits_brief

Figure 4:

The 95% CL exclusion limits on the produced particle and LSP masses in the models T1(T1bbbb), T2(T2bb), T5zz, T3w, T1tttt, and T5gg(T5wg).

T1
T5zz
T1tttt

Figure 5:

The 95% CL exclusion limits and the predicted cross section for the produced particle masses with a fixed LSP mass in the models T1(T1bbbb), T2(T2bb), T1tttt, T2tt, TChiSlepSlep and TChiwz.

T1_1d
T1tttt_1d
TChiSlepSlep_1d

-- WolfgangWaltenberger - 01-May-2012

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf CMS_SMSLimitsHadronic.pdf r1 manage 32.0 K 2012-05-03 - 14:48 MariarosariaDalfonso  
PNGpng CMS_SMSLimitsHadronic.png r1 manage 312.9 K 2012-05-03 - 14:50 MariarosariaDalfonso  
PDFpdf CMS_SMSLimitsLeptonic.pdf r1 manage 40.7 K 2012-05-03 - 14:48 MariarosariaDalfonso  
PNGpng CMS_SMSLimitsLeptonic.png r1 manage 421.0 K 2012-05-03 - 14:50 MariarosariaDalfonso  
PDFpdf CMS_SMSLimits_brief.pdf r2 r1 manage 565.1 K 2013-01-15 - 15:33 Walten  
PNGpng CMS_SMSLimits_brief.png r2 r1 manage 67.4 K 2013-01-15 - 15:33 Walten  
PDFpdf T1.pdf r1 manage 17.9 K 2013-01-15 - 15:34 Walten  
PNGpng T1.png r1 manage 60.1 K 2013-01-15 - 15:34 Walten  
PDFpdf T1_1d.pdf r1 manage 26.9 K 2013-01-15 - 15:34 Walten  
PNGpng T1_1d.png r1 manage 70.3 K 2013-01-15 - 15:34 Walten  
PDFpdf T1tttt.pdf r1 manage 18.4 K 2013-01-15 - 15:34 Walten  
PNGpng T1tttt.png r1 manage 50.9 K 2013-01-15 - 15:34 Walten  
PDFpdf T1tttt_1d.pdf r1 manage 26.5 K 2013-01-15 - 15:34 Walten  
PNGpng T1tttt_1d.png r1 manage 70.1 K 2013-01-15 - 15:34 Walten  
PDFpdf T2.pdf r1 manage 17.4 K 2013-01-15 - 15:34 Walten  
PNGpng T2.png r1 manage 49.8 K 2013-01-15 - 15:34 Walten  
PDFpdf T2_1d.pdf r1 manage 43.5 K 2013-01-15 - 15:34 Walten  
PNGpng T2_1d.png r1 manage 67.2 K 2013-01-15 - 15:34 Walten  
PDFpdf T2tt_1d.pdf r1 manage 22.9 K 2013-01-15 - 15:34 Walten  
PNGpng T2tt_1d.png r1 manage 50.7 K 2013-01-15 - 15:34 Walten  
PDFpdf T3w.pdf r1 manage 17.1 K 2013-01-15 - 15:34 Walten  
PNGpng T3w.png r1 manage 22.4 K 2013-01-15 - 15:34 Walten  
PDFpdf T5gg.pdf r1 manage 23.4 K 2013-01-15 - 15:34 Walten  
PNGpng T5gg.png r1 manage 53.1 K 2013-01-15 - 15:34 Walten  
PDFpdf T5zz.pdf r1 manage 17.6 K 2013-01-15 - 15:34 Walten  
PNGpng T5zz.png r1 manage 52.2 K 2013-01-15 - 15:34 Walten  
PDFpdf TChiSlepSlep_1d.pdf r1 manage 17.2 K 2013-01-15 - 15:35 Walten  
PNGpng TChiSlepSlep_1d.png r1 manage 54.5 K 2013-01-15 - 15:35 Walten  
PDFpdf TChiwz_1d.pdf r1 manage 15.8 K 2013-01-15 - 15:35 Walten  
PNGpng TChiwz_1d.png r1 manage 47.5 K 2013-01-15 - 15:35 Walten  
PDFpdf dibars.pdf r1 manage 870.7 K 2013-01-15 - 15:33 Walten  
PNGpng dibars.png r1 manage 117.5 K 2013-01-15 - 15:33 Walten  
PDFpdf h_eff_T3lh_OScounting.pdf r1 manage 19.6 K 2013-01-15 - 15:33 Walten  
PNGpng h_eff_T3lh_OScounting.png r1 manage 43.0 K 2013-01-15 - 15:39 Walten  
PNGpng h_eff_T3lh_OSedge.png r1 manage 44.2 K 2013-01-15 - 15:41 Walten  
PDFpdf h_eff_T3lh_OSshape.pdf r1 manage 18.9 K 2013-01-15 - 15:44 Walten  
PNGpng h_eff_T3lh_OSshape.png r1 manage 43.6 K 2013-01-15 - 15:44 Walten  
PDFpdf h_eff_TChiwz_MULTILEPTON.pdf r1 manage 14.3 K 2012-11-23 - 16:45 Walten corrected versions
PNGpng h_eff_TChiwz_MULTILEPTON.png r1 manage 33.4 K 2012-11-23 - 16:45 Walten corrected versions
PDFpdf h_eff_TChizz_MULTILEPTON.pdf r1 manage 14.1 K 2012-11-23 - 16:45 Walten corrected versions
PNGpng h_eff_TChizz_MULTILEPTON.png r1 manage 32.9 K 2012-11-23 - 16:45 Walten corrected versions
PNGpng h_limit_T3lh_OScounting.png r1 manage 53.2 K 2013-01-15 - 15:39 Walten  
PDFpdf h_limit_T3lh_OSedge.pdf r1 manage 19.7 K 2013-01-15 - 15:39 Walten  
PNGpng h_limit_T3lh_OSedge.png r1 manage 67.0 K 2013-01-15 - 15:39 Walten  
PNGpng h_limit_T3lh_OSshape.png r1 manage 64.1 K 2013-01-15 - 15:33 Walten  
PDFpdf tab1.pdf r2 r1 manage 93.3 K 2013-01-15 - 15:33 Walten  
PNGpng tab1.png r2 r1 manage 93.3 K 2013-01-15 - 15:33 Walten  
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