Search for stop and higgsino production using diphoton Higgs boson decays

Text of the paper

ArXiv:1312.3310

Abstract

Results of a search for a “natural” SUSY scenario with gauge-mediated symmetry breaking are presented. Only SUSY partners of top-quark (stop) and Higgs boson (higgsino) are assumed to be accessible. Events in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets are examined. Using 19.7 fb−1 of proton-proton collisions data at √s = 8 TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the stop mass below 360 to 410 GeV, depending on the higgsino mass.

Plots from SUS-13-014 Paper

FIGURE (click image for PDF) Caption

Figure 1a. Example strong production diagram

Figure 1b. Example electroweak production diagram

Figure 2. Total production cross-section times Br(H → γγ)

Figure 3a. Distribution of MET for the data in one of the three event categories (≥ 3 b-jets). The background prediction is shown by shaded rectangles and selected Monte Carlo mass points by color points. The last bin includes the overflow.

Figure 3b. Distribution of MET for the data in one of the three event categories (exactly 2 b-jets, on-Higgs). The background prediction is shown by shaded rectangles and selected Monte Carlo mass points by color points. The last bin includes the overflow.

Figure 3c. Distribution of MET for the data in one of the three event categories (exactly 2 b-jets, off-Higgs). The background prediction is shown by shaded rectangles and selected Monte Carlo mass points by color points. The last bin includes the overflow.

Table 1. Expected and observed event counts. The yields for three signal points are shown for comparison indicating Mstop and Mhiggsino respectively.

Limit on the stop pair production cross section using b-jet categories. The regions to the left of the contours are expected (red) and observed (black) to be excluded with 95% confidence.
The .C file with limit values

Additional Material

Distribution of MET for the data, background predictions (shaded rectangles), and selected Monte Carlo mass points (color points). The last bin includes the overflow.

Distribution of ST for the data, background predictions (shaded rectangles), and selected Monte Carlo mass points (color points). The last bin includes the overflow.

Distribution of HT for the data, background predictions (shaded rectangles), and selected Monte Carlo mass points (color points). The last bin includes the overflow.

Distribution of BT for the data, background predictions (shaded rectangles), and selected Monte Carlo mass points (color points). The last bin includes the overflow.

Distribution of MHT for the data, background predictions (shaded rectangles), and selected Monte Carlo mass points (color points). The last bin includes the overflow.

Distribution of pT(γ γ) for the data, background predictions (shaded rectangles), and selected Monte Carlo mass points (color points). The last bin includes the overflow.

Distribution of diphoton mass for the data in one of the three event categories (exaclty 2 b-jets, on-Higgs). Solid red line shows the background fit region. Hatched histogram is expected signal for Mstop=300 GeV and Mhiggsino=290 GeV

Distribution of diphoton mass for the data in one of the three event categories (exactly 2 b-jets, off-Higgs). Solid red line shows the background fit region.Hatched histogram is expected signal for Mstop=300 GeV and Mhiggsino=290 GeV

Distribution of diphoton mass for the data in one of the three event categories (≥ 3 b-jets). Solid red line shows the background fit region. Hatched histogram is expected signal for Mstop=300 GeV and Mhiggsino=290 GeV

Distribution of diphoton mass for the data for the sum of the three categories. (≥ 2 b-jets). Solid red line shows the background fit region. Hatched histogram is expected signal for Mstop=300 GeV and Mhiggsino=290 GeV

Total production cross-section times Br(H → γγ) on linear scale

Fraction of the total production cross-section from stop production.


Spectrum of the minimal model considered.

Efficiencies for the sum of the three categories. (≥ 2 b-jets) for the stop and electroweak production combined.
The .C file with efficiency values

Efficiencies for the sum of the three categories. (≥ 2 b-jets) for the stop production alone.
The .C file with efficiency values

Efficiencies for the data in one of the three event categories (exaclty 2 b-jets, on-Higgs) for the stop and electroweak production combined.
The .C file with efficiency values

Efficiencies for the data in one of the three event categories (exaclty 2 b-jets, on-Higgs) for the stop production alone.
The .C file with efficiency values

Efficiencies for the data in one of the three event categories (exaclty 2 b-jets, off-Higgs) for the stop and electroweak production combined.
The .C file with efficiency values

Efficiencies for the data in one of the three event categories (exaclty 2 b-jets, off-Higgs) for the stop production alone.
The .C file with efficiency values

Efficiencies for the data in one of the three event categories (≥ 3 b-jets) for the stop and electroweak production combined.
The .C file with efficiency values

Efficiencies for the data in one of the three event categories (≥ 3 b-jets) for the stop production alone.
The .C file with efficiency values
Topic attachments
I Attachment History Action Size Date Who Comment
C source code filec Eff_2bOFF_comb.C r3 r2 r1 manage 11.8 K 2013-11-05 - 19:41 AnthonyBarker  
PDFpdf Eff_2bOFF_comb.pdf r4 r3 r2 r1 manage 14.7 K 2013-11-05 - 19:41 AnthonyBarker  
PNGpng Eff_2bOFF_comb.png r4 r3 r2 r1 manage 15.5 K 2013-11-05 - 19:41 AnthonyBarker  
C source code filec Eff_2bOFF_comb_stoponly.C r3 r2 r1 manage 8.7 K 2013-11-05 - 19:38 AnthonyBarker  
PDFpdf Eff_2bOFF_comb_stoponly.pdf r4 r3 r2 r1 manage 14.6 K 2013-11-05 - 19:38 AnthonyBarker  
PNGpng Eff_2bOFF_comb_stoponly.png r4 r3 r2 r1 manage 15.0 K 2013-11-05 - 19:38 AnthonyBarker  
C source code filec Eff_2bON_comb.C r3 r2 r1 manage 11.6 K 2013-11-05 - 19:41 AnthonyBarker  
PDFpdf Eff_2bON_comb.pdf r4 r3 r2 r1 manage 14.6 K 2013-11-05 - 19:41 AnthonyBarker  
PNGpng Eff_2bON_comb.png r4 r3 r2 r1 manage 14.9 K 2013-11-05 - 19:41 AnthonyBarker  
C source code filec Eff_2bON_comb_stoponly.C r4 r3 r2 r1 manage 8.6 K 2013-11-06 - 03:58 AnthonyBarker  
PDFpdf Eff_2bON_comb_stoponly.pdf r4 r3 r2 r1 manage 14.6 K 2013-11-06 - 03:58 AnthonyBarker  
PNGpng Eff_2bON_comb_stoponly.png r4 r3 r2 r1 manage 14.9 K 2013-11-05 - 19:41 AnthonyBarker  
C source code filec Eff_2b_comb.C r3 r2 r1 manage 10.8 K 2013-11-05 - 19:38 AnthonyBarker  
PDFpdf Eff_2b_comb.pdf r4 r3 r2 r1 manage 14.6 K 2013-11-05 - 19:38 AnthonyBarker  
PNGpng Eff_2b_comb.png r4 r3 r2 r1 manage 15.1 K 2013-11-05 - 19:38 AnthonyBarker  
C source code filec Eff_2b_comb_stoponly.C r3 r2 r1 manage 8.6 K 2013-11-05 - 19:38 AnthonyBarker  
PDFpdf Eff_2b_comb_stoponly.pdf r4 r3 r2 r1 manage 14.5 K 2013-11-05 - 19:38 AnthonyBarker  
PNGpng Eff_2b_comb_stoponly.png r4 r3 r2 r1 manage 15.4 K 2013-11-05 - 19:38 AnthonyBarker  
C source code filec Eff_3b_comb.C r3 r2 r1 manage 11.0 K 2013-11-05 - 19:42 AnthonyBarker  
PDFpdf Eff_3b_comb.pdf r4 r3 r2 r1 manage 14.6 K 2013-11-05 - 19:42 AnthonyBarker  
PNGpng Eff_3b_comb.png r4 r3 r2 r1 manage 15.1 K 2013-11-05 - 19:42 AnthonyBarker  
C source code filec Eff_3b_comb_stoponly.C r3 r2 r1 manage 8.6 K 2013-11-05 - 19:42 AnthonyBarker  
PDFpdf Eff_3b_comb_stoponly.pdf r4 r3 r2 r1 manage 14.6 K 2013-11-05 - 19:42 AnthonyBarker  
PNGpng Eff_3b_comb_stoponly.png r4 r3 r2 r1 manage 15.7 K 2013-11-05 - 19:42 AnthonyBarker  
PDFpdf ExclBlob_bbin3_MET.pdf r2 r1 manage 15.2 K 2013-11-05 - 02:20 AnthonyBarker  
PNGpng ExclBlob_bbin3_MET.png r3 r2 r1 manage 18.6 K 2013-11-05 - 02:20 AnthonyBarker  
PDFpdf ExclBlob_bbin3_MET_shortaxis.pdf r2 r1 manage 15.3 K 2013-11-05 - 02:23 AnthonyBarker  
PNGpng ExclBlob_bbin3_MET_shortaxis.png r3 r2 r1 manage 19.3 K 2013-11-05 - 02:23 AnthonyBarker  
C source code filec Excl_bbin3_MET_cs.C r2 r1 manage 38.4 K 2013-11-05 - 02:24 AnthonyBarker  
PDFpdf Excl_bbin3_MET_cs.pdf r3 r2 r1 manage 15.9 K 2013-12-10 - 18:11 AnthonyBarker  
PNGpng Excl_bbin3_MET_cs.png r5 r4 r3 r2 r1 manage 29.4 K 2013-12-10 - 18:11 AnthonyBarker  
PDFpdf Natural_Higgsino_NLSP.pdf r1 manage 34.5 K 2013-11-06 - 04:02 AnthonyBarker  
PNGpng Natural_Higgsino_NLSP.png r1 manage 172.8 K 2013-09-28 - 01:11 AnthonyBarker  
PDFpdf SUS-13-014_1colDrawftLineNums.pdf r6 r5 r4 r3 r2 manage 726.2 K 2013-12-10 - 18:15 AnthonyBarker  
PDFpdf SUS-13-014_2col.pdf r6 r5 r4 r3 r2 manage 454.1 K 2013-12-10 - 18:15 AnthonyBarker  
PDFpdf SigComp1_Bt_2JbMLgbar2.pdf r5 r4 r3 r2 r1 manage 15.2 K 2013-12-06 - 20:02 AnthonyBarker  
PNGpng SigComp1_Bt_2JbMLgbar2.png r6 r5 r4 r3 r2 manage 28.1 K 2013-12-06 - 20:02 AnthonyBarker  
PDFpdf SigComp1_HT_2JbMLgbar2.pdf r5 r4 r3 r2 r1 manage 15.3 K 2013-12-06 - 20:02 AnthonyBarker  
PNGpng SigComp1_HT_2JbMLgbar2.png r6 r5 r4 r3 r2 manage 29.6 K 2013-12-06 - 20:02 AnthonyBarker  
PDFpdf SigComp1_MET_2JbMLNOTGbar2Mbb.pdf r6 r5 r4 r3 r2 manage 15.0 K 2013-12-06 - 20:10 AnthonyBarker  
PNGpng SigComp1_MET_2JbMLNOTGbar2Mbb.png r6 r5 r4 r3 r2 manage 29.5 K 2013-12-06 - 20:10 AnthonyBarker  
PDFpdf SigComp1_MET_2JbMLNOTGbar2MbbNOT.pdf r6 r5 r4 r3 r2 manage 14.9 K 2013-12-06 - 20:10 AnthonyBarker  
PNGpng SigComp1_MET_2JbMLNOTGbar2MbbNOT.png r6 r5 r4 r3 r2 manage 29.6 K 2013-12-06 - 20:10 AnthonyBarker  
PDFpdf SigComp1_MET_2JbMLgbar2.pdf r4 r3 r2 r1 manage 15.2 K 2013-12-05 - 23:32 AnthonyBarker  
PNGpng SigComp1_MET_2JbMLgbar2.png r5 r4 r3 r2 r1 manage 30.0 K 2013-12-05 - 23:32 AnthonyBarker  
PDFpdf SigComp1_MET_3JbMLLGbar2.pdf r6 r5 r4 r3 r2 manage 15.0 K 2013-12-06 - 20:10 AnthonyBarker  
PNGpng SigComp1_MET_3JbMLLGbar2.png r6 r5 r4 r3 r2 manage 30.8 K 2013-12-06 - 20:10 AnthonyBarker  
PDFpdf SigComp1_MHT_2JbMLgbar2.pdf r5 r4 r3 r2 r1 manage 15.7 K 2013-12-06 - 20:02 AnthonyBarker  
PNGpng SigComp1_MHT_2JbMLgbar2.png r6 r5 r4 r3 r2 manage 29.7 K 2013-12-06 - 20:02 AnthonyBarker  
PDFpdf SigComp1_PtGG_2JbMLgbar2.pdf r5 r4 r3 r2 r1 manage 15.0 K 2013-12-06 - 20:02 AnthonyBarker  
PNGpng SigComp1_PtGG_2JbMLgbar2.png r6 r5 r4 r3 r2 manage 28.8 K 2013-12-06 - 20:02 AnthonyBarker  
PDFpdf SigComp1_ST_2JbMLgbar2.pdf r5 r4 r3 r2 r1 manage 15.4 K 2013-12-06 - 20:02 AnthonyBarker  
PNGpng SigComp1_ST_2JbMLgbar2.png r6 r5 r4 r3 r2 manage 29.2 K 2013-12-06 - 20:02 AnthonyBarker  
PDFpdf StopHiggs.pdf r4 r3 r2 r1 manage 84.2 K 2013-11-06 - 04:49 AnthonyBarker  
PNGpng StopHiggs.png r4 r3 r2 r1 manage 1795.9 K 2013-11-06 - 04:49 AnthonyBarker  
PDFpdf XSec.pdf r3 r2 r1 manage 14.5 K 2013-11-05 - 19:35 AnthonyBarker  
PNGpng XSec.png r4 r3 r2 r1 manage 17.1 K 2013-11-05 - 19:35 AnthonyBarker  
PDFpdf XSecLogZ.pdf r3 r2 r1 manage 14.7 K 2013-11-05 - 19:35 AnthonyBarker  
PNGpng XSecLogZ.png r4 r3 r2 r1 manage 16.5 K 2013-11-05 - 19:35 AnthonyBarker  
PDFpdf XSec_stopfrac.pdf r4 r3 r2 r1 manage 14.6 K 2013-11-05 - 19:49 AnthonyBarker  
PNGpng XSec_stopfrac.png r4 r3 r2 r1 manage 19.2 K 2013-11-05 - 19:49 AnthonyBarker  
PDFpdf higgsino_x1px1m.pdf r3 r2 r1 manage 67.7 K 2013-11-06 - 04:49 AnthonyBarker  
PNGpng higgsino_x1px1m.png r3 r2 r1 manage 116.8 K 2013-11-06 - 04:49 AnthonyBarker  
PDFpdf mgg_2b.pdf r4 r3 r2 r1 manage 26.1 K 2013-12-05 - 23:19 AnthonyBarker  
PNGpng mgg_2b.png r7 r6 r5 r4 r3 manage 31.9 K 2013-12-05 - 23:19 AnthonyBarker  
PDFpdf mgg_2bOFF.pdf r5 r4 r3 r2 r1 manage 21.5 K 2013-12-05 - 23:19 AnthonyBarker  
PNGpng mgg_2bOFF.png r6 r5 r4 r3 r2 manage 28.9 K 2013-12-05 - 23:19 AnthonyBarker  
PDFpdf mgg_2bON.pdf r4 r3 r2 r1 manage 19.6 K 2013-12-05 - 23:19 AnthonyBarker  
PNGpng mgg_2bON.png r6 r5 r4 r3 r2 manage 27.1 K 2013-12-05 - 23:19 AnthonyBarker  
PDFpdf mgg_3b.pdf r4 r3 r2 r1 manage 19.5 K 2013-12-05 - 23:19 AnthonyBarker  
PNGpng mgg_3b.png r6 r5 r4 r3 r2 manage 27.6 K 2013-12-05 - 23:19 AnthonyBarker  
PNGpng table.png r2 r1 manage 17.2 K 2013-11-05 - 21:42 YuriGershtein  
PNGpng table2.png r1 manage 66.2 K 2013-09-28 - 01:11 AnthonyBarker  
PNGpng tablesyst.png r1 manage 94.8 K 2013-09-28 - 01:11 AnthonyBarker  
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