SUS-12-001

Abstract

We have performed a search for supersymmetry in a gauge-mediation scenario with the gravitino as the lightest supersymmetric particle. The data sample corresponds to an integrated luminosity of 4.93 fb^-1 of pp collisions at sqrt(s) = 7 TeV, recorded by the CMS experiment at the LHC.We compare the missing transverse energy distribution in events containing either at least two photons plus at least one hadronic jet or at least one photon plus at least two hadronic jets to the spectra expected from standard model processes. No excess of events at high missing transverse energy is observed and upper limits on the signal production cross sections of order 0.01 pb (0.1 pb) at the 95% confidence level for the bino-like (wino-like) scenarios are determined for a range of squark, gluino, and neutralino masses. This analysis is also re-interpreted as a search for Universal Extra Dimensions leading to 95% exclusion values of 1/R < 1380 GeV for NLEDs = 6.

The preliminary version of this analysis is documented in Physics Analysis Summary SUS-12-001 and the final version is submitted to JHEP and available as arXiv:1211.4784

Plots

Figure Caption
MET_ff_sys_error_1jet.png Figure 1: ETmiss spectrum of γγ data compared to QCD prediction together with the small EWK background for events with at least one jet. The hatched areas indicate the total background uncertainties. Two example GGM points on either side of our exclusion boundary (squark/gluino/LSP masses given in GeV) are also shown.
can_limit_bino_mN375_met100_1jet.png Figure 2a: 95% C.L. upper limits on the signal cross section in gluino-squark mass space for bino-like neutralinos for the diphoton analysis
can_excl02_bino_mN375_met100_1jet.png Figure 2b: 95% C.L. exclusion contours in gluino-squark mass space for bino-like neutralinos for the diphoton analysis. The shaded uncertainty band around the exclusion contours correspond to the NLO renormalization and PDF uncertainties of the signal cross section.
can_limit_wino_mN375_met100_1jet.png Figure 2c: 95% C.L. upper limits on the signal cross section in gluino-squark mass space for wino-like neutralinos for the diphoton analysis
can_excl02_wino_mN375_met100_1jet.png Figure 2d: 95% C.L. exclusion contours in gluino-squark mass space for wino-like neutralinos for the diphoton analysis. The shaded uncertainty band around the exclusion contours correspond to the NLO renormalization and PDF uncertainties of the signal cross section.
can_limit_bino_mNScan_met100_1jet.png Figure3a: 95% C.L. upper limits on the signal cross section in gluino-bino mass space for bino-like neutralinos for the diphoton analysis.
can_excl02_bino_mNScan_met100_1jet.png Figure3b: 95% C.L. exclusion contours in gluino-bino mass space for bino-like neutralinos for the diphoton analysis. The shaded uncertainty band around the exclusion contours correspond to the NLO renormalization and PDF uncertainties of the signal cross section.
PreselMet_2jet.png Figure 4: Total standard model background prediction compared to the number of singlephoton events, including two GGM benchmark signal benchmark points as examples where squark/gluino/LSP masses given in GeV.
Bino_ObsXsecLimit.png Figure 5a: 95% C.L. upper limits on the signal cross section in gluino-squark mass space for bino-like neutralinos for the single photon analysis
Bino_Exclusion_.png Figure 5b: 95% C.L. exclusion contours in gluino-squark mass space for bino-like neutralinos for the single photon analysis
Wino_ObsXsecLimit.png Figure 5c: 95% C.L. upper limits on the signal cross section in gluino-squark mass space for wino-like neutralinos for the single photon analysis
Wino_Exclusion_.png Figure 5d: 95% C.L. exclusion contours in gluino-squark mass space for wino-like neutralinos for the single photon analysis
BinoNeutr_ObsXsecLimit.png Figure 6a: 95% C.L. exclusion contours on the signal cross section in gluino-bino mass space for bino-like neutralinos for the single photon analysis.
BinoNeutr_Exclusion_.png Figure 6b: 95% C.L. exclusion contours in gluino-bino mass space for bino-like neutralinos for the single photon analysis
UED_limit_6.png Figure 7a: The UED cross section upper limit for 6 LEDs at the 95% C.L. is compared with UED LO production cross sections. Intersection of the central cross section value implies exclusion of all values of 1/R < 1380 GeV for 6 LEDs. The shaded region shows uncertainty due to PDFs and renormalization scale.
UED_limit_2.png Figure 7b: The UED cross section upper limit for 2 LEDs at the 95% C.L. is compared with UED LO production cross sections. Intersection of the central cross section value implies exclusion of all values of 1/R < 1350 GeV for 2 LEDs. The shaded region shows uncertainty due to PDFs and renormalization scale.

-- ManfredPaulini - 09-Jan-2013

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf BinoNeutr_Exclusion_.pdf r2 r1 manage 19.8 K 2013-01-10 - 01:12 ManfredPaulini Figure 6b
PNGpng BinoNeutr_Exclusion_.png r2 r1 manage 30.4 K 2013-01-10 - 01:12 ManfredPaulini Figure 6bpng
PDFpdf BinoNeutr_ObsXsecLimit.pdf r2 r1 manage 16.1 K 2013-01-10 - 01:09 ManfredPaulini Figure 6a
PNGpng BinoNeutr_ObsXsecLimit.png r2 r1 manage 29.9 K 2013-01-10 - 01:09 ManfredPaulini Figure 6apng
PDFpdf Bino_Exclusion_.pdf r2 r1 manage 17.2 K 2013-01-10 - 00:52 ManfredPaulini Figure 5b
PNGpng Bino_Exclusion_.png r2 r1 manage 35.9 K 2013-01-10 - 00:53 ManfredPaulini Figure 5bpng
PDFpdf Bino_ObsXsecLimit.pdf r2 r1 manage 15.4 K 2013-01-10 - 00:48 ManfredPaulini Figure 5a
PNGpng Bino_ObsXsecLimit.png r2 r1 manage 28.9 K 2013-01-10 - 00:50 ManfredPaulini Figure 5apng
PDFpdf MET_ff_sys_error_1jet.pdf r1 manage 18.4 K 2013-01-09 - 23:30 ManfredPaulini Figure 1
PNGpng MET_ff_sys_error_1jet.png r2 r1 manage 43.1 K 2013-01-09 - 23:31 ManfredPaulini Figure1png
PDFpdf PreselMet_2jet.pdf r2 r1 manage 19.5 K 2013-01-10 - 00:43 ManfredPaulini Figure 4
PNGpng PreselMet_2jet.png r2 r1 manage 43.2 K 2013-01-10 - 00:44 ManfredPaulini Figure 4png
PDFpdf UED_limit_2.pdf r2 r1 manage 14.5 K 2013-01-10 - 01:19 ManfredPaulini Figure 7b
PNGpng UED_limit_2.png r2 r1 manage 28.8 K 2013-01-10 - 01:20 ManfredPaulini Figure 7bpng
PDFpdf UED_limit_6.pdf r2 r1 manage 14.5 K 2013-01-10 - 01:16 ManfredPaulini Figure 7a
PNGpng UED_limit_6.png r2 r1 manage 28.1 K 2013-01-10 - 01:16 ManfredPaulini Figure 7apng
PDFpdf Wino_Exclusion_.pdf r2 r1 manage 16.3 K 2013-01-10 - 01:00 ManfredPaulini Figure 5d
PNGpng Wino_Exclusion_.png r2 r1 manage 37.9 K 2013-01-10 - 01:02 ManfredPaulini Figure 5dpng
PDFpdf Wino_ObsXsecLimit.pdf r2 r1 manage 15.4 K 2013-01-10 - 00:57 ManfredPaulini Figure 5c
PNGpng Wino_ObsXsecLimit.png r2 r1 manage 29.6 K 2013-01-10 - 00:58 ManfredPaulini Figure 5cpng
PDFpdf can_excl02_bino_mN375_met100_1jet.pdf r3 r2 r1 manage 14.7 K 2013-01-10 - 00:11 ManfredPaulini Figure 2b
PNGpng can_excl02_bino_mN375_met100_1jet.png r2 r1 manage 41.0 K 2013-01-10 - 00:11 ManfredPaulini Figure 2bpng
PDFpdf can_excl02_bino_mNScan_met100_1jet.pdf r2 r1 manage 15.3 K 2013-01-10 - 00:39 ManfredPaulini Figure 3b
PNGpng can_excl02_bino_mNScan_met100_1jet.png r2 r1 manage 32.8 K 2013-01-10 - 00:40 ManfredPaulini Figure 3bpng
PDFpdf can_excl02_wino_mN375_met100_1jet.pdf r2 r1 manage 15.1 K 2013-01-10 - 00:27 ManfredPaulini Figure 2d
PNGpng can_excl02_wino_mN375_met100_1jet.png r2 r1 manage 49.3 K 2013-01-10 - 00:28 ManfredPaulini Figure 2dpng
PDFpdf can_limit_bino_mN375_met100_1jet.pdf r2 r1 manage 15.6 K 2013-01-10 - 00:05 ManfredPaulini Figure2a
PNGpng can_limit_bino_mN375_met100_1jet.png r2 r1 manage 30.9 K 2013-01-10 - 00:06 ManfredPaulini Figure 2apng
PDFpdf can_limit_bino_mNScan_met100_1jet.pdf r2 r1 manage 15.8 K 2013-01-10 - 00:34 ManfredPaulini Figure 3a
PNGpng can_limit_bino_mNScan_met100_1jet.png r2 r1 manage 27.8 K 2013-01-10 - 00:35 ManfredPaulini Figure 3apng
PDFpdf can_limit_wino_mN375_met100_1jet.pdf r2 r1 manage 15.8 K 2013-01-10 - 00:21 ManfredPaulini Figure 2c
PNGpng can_limit_wino_mN375_met100_1jet.png r2 r1 manage 31.2 K 2013-01-10 - 00:24 ManfredPaulini Figure 2cpng
Edit | Attach | Watch | Print version | History: r6 < r5 < r4 < r3 < r2 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r6 - 2013-01-10 - ManfredPaulini
 
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    CMSPublic All webs login

This site is powered by the TWiki collaboration platform Powered by PerlCopyright & 2008-2018 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback