NLO-NLL Higgsino-like Cross Sections (fully-degenerate case)

The following cross sections are for pure higgsino-like pair production assuming N1, C1, N2 with degenerate mass mχ̃, and for the sum of the relevant processes: N1N2, N1C1, N2C1 (=N1C1), C1C1 (N1N1 and N2N2 vanish). They have been calculated for sqrt(s) = 13 TeV at NLO-NLL using the resummino code from B. Fuks et al with CTEQ6.6 and MSTW2008nlo90cl PDFs. Final numbers are calculated using the PDF4LHC recommendations for the two sets of cross sections.

The following sentence accurately describes all the assumptions in the cross sections calculation and is suitable to be included in the interpretation description:

The production cross sections are computed at NLO plus next-to-leading-log (NLL) precision
in a limit of mass-degenerate higgsino $\chiz_2$, $\chipm_1$,  and $\chiz_1$ with all the other 
sparticles assumed to be heavy and decoupled.

The slha file used to produce these numbers can found in the attachment below: hino.dat

When using these cross sections, please cite the following two references, available below in bibtex format:


@article{Fuks:2012qx,
      author         = "Fuks, Benjamin and Klasen, Michael and Lamprea, David R.
                        and Rothering, Marcel",
      title          = "{Gaugino production in proton-proton collisions at a
                        center-of-mass energy of 8 TeV}",
      journal        = "JHEP",
      volume         = "10",
      pages          = "081",
      doi            = "10.1007/JHEP10(2012)081",
      year           = "2012",
      eprint         = "1207.2159",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "IPHC-PHENO-12-07, MS-TP-12-05",
      SLACcitation   = "%%CITATION = ARXIV:1207.2159;%%",
}

@article{Fuks:2013vua,
      author         = "Fuks, Benjamin and Klasen, Michael and Lamprea, David R.
                        and Rothering, Marcel",
      title          = "{Precision predictions for electroweak superpartner
                        production at hadron colliders with {\sc Resummino}}",
      journal        = "Eur. Phys. J. C",
      volume         = "73",
      pages          = "2480",
      doi            = "10.1140/epjc/s10052-013-2480-0",
      year           = "2013",
      eprint         = "1304.0790",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "CERN-PH-TH-2013-064, IPHC-PHENO-13-02, MS-TP-13-06",
      SLACcitation   = "%%CITATION = ARXIV:1304.0790;%%",
}

Should the analyzer need the cross-section information for a mass value that is not tabulated below, s/he can obtain it using the ROOT macros provided under:

/afs/cern.ch/user/a/amete/public/EWKGauginoCrossSections_13TeV

For this specific grid one needs to do:

root -l 'get_gaugino.C("CN","hino",mass)' 

where

mass
is the mass of the sparticle in GeV. The result of the interpolation can been seen here.

NLO-NLL hino-like χ̃χ̃

mχ̃ [GeV] xsec [fb] uncertainty [fb]
100 16797.2 603.411
150 3832.31 158.509
200 1335.62 63.3568
250 577.314 30.7553
300 284.855 16.7172
350 153.841 9.85502
400 88.7325 6.18924
450 53.7702 4.02376
500 33.8387 2.7158
550 21.9868 1.86729
600 14.6677 1.32111
650 9.96406 0.937269
700 6.89981 0.678178
750 4.8731 0.493209
800 3.46143 0.372511
850 2.4923 0.274194
900 1.80616 0.204818
950 1.32692 0.155285
1000 0.968853 0.122278
1050 0.731306 0.0866612
1100 0.538005 0.0721461
1150 0.405108 0.0488588
1200 0.299347 0.0486751
1250 0.240471 0.0286811
1300 0.160765 0.0196493
1350 0.111174 0.0197535
1400 0.0780263 0.00926313
1450 0.0696962 0.0138617

CTEQ6.6 numbers: NLO-NLL hino-like χ̃χ̃

mχ̃ [GeV] xsec [fb] -scale unc [%] -pdf unc [%] +scale unc [%] +pdf unc [%]
100 16696 -1.1 -2.6 -0.16 3.1
150 3790.2 -0.52 -2.9 -0.41 3.4
200 1315.9 -0.6 -3.1 -0.21 3.8
250 567.17 -0.59 -3.4 -0.099 4.2
300 279.02 -0.44 -3.7 0.026 4.6
350 150.3 -0.36 -4.1 0.11 4.9
400 86.474 -0.4 -4.4 0.13 5.4
450 52.267 -0.37 -4.7 0.21 5.8
500 32.851 -0.5 -5.1 0.13 6.2
550 21.307 -0.55 -5.5 0.11 6.5
600 14.173 -0.47 -5.7 -0.031 6.9
650 9.6179 -0.59 -6 -0.034 7.2
700 6.6389 -0.71 -6.2 -0.044 7.8
750 4.6981 -0.84 -6.6 -0.4 8
800 3.3234 -0.9 -6.9 -0.34 8.3
850 2.3991 -0.83 -7.4 -0.45 8.5
900 1.7311 -0.83 -7.4 -0.3 9.2
950 1.2754 -0.81 -8 -0.57 9.2
1000 0.92082 -1 -7.9 -0.59 9.9
1050 0.70175 -1 -8 -0.35 11
1100 0.51342 -1 -9.2 -0.67 10
1150 0.39244 -1 -9.1 -0.54 11
1200 0.27714 -1.1 -9.4 -0.79 11
1250 0.23564 -1.1 -10 -0.65 12
1300 0.15713 -1.1 -10 -1 13
1350 0.10069 -1.2 -9.1 -1.3 12
1400 0.075869 -1.3 -9.2 -1.4 12
1450 0.0622 -1.4 -10 -1.2 13

MSTW2008nlo90cl numbers: NLO-NLL hino-like χ̃χ̃

mχ̃ [GeV] xsec [fb] -scale unc [%] -pdf unc [%] +scale unc [%] +pdf unc [%]
100 16834 -1.2 -2.6 -0.19 3.4
150 3853.8 -0.52 -2.8 -0.38 3.5
200 1347.2 -0.62 -2.9 -0.2 3.8
250 584.02 -0.6 -3.1 -0.073 4.1
300 288.83 -0.5 -3.3 0.087 4.4
350 156.25 -0.36 -3.5 0.24 4.8
400 90.279 -0.44 -3.8 0.32 5.1
450 54.778 -0.37 -4 0.34 5.5
500 34.527 -0.47 -4.2 0.27 5.9
550 22.457 -0.52 -4.4 0.29 6.2
600 14.984 -0.51 -4.6 0.25 6.7
650 10.187 -0.72 -4.8 0.011 7
700 7.0518 -0.71 -4.9 0.11 7.5
750 4.9649 -0.71 -5.1 0.12 8.1
800 3.534 -0.71 -5.4 -0.1 8.5
850 2.5482 -0.85 -5.7 -0.12 8.6
900 1.8425 -0.75 -5.9 -0.19 9.1
950 1.3508 -1.1 -6.1 -0.15 9.7
1000 0.99227 -1.1 -6.6 -0.46 10
1050 0.74007 -1.1 -6.8 -0.38 11
1100 0.54934 -1.2 -6.8 -0.39 11
1150 0.4069 -1.2 -7.5 -0.34 12
1200 0.31028 -1.4 -7.8 -0.29 12
1250 0.23797 -1.4 -8.5 -0.39 13
1300 0.15885 -1.5 -8.6 -0.86 14
1350 0.11199 -1.4 -5.4 0.46 17
1400 0.076685 -1.6 -8.5 -1.3 14
1450 0.072766 -1.9 -9.3 -0.57 15

-- LesyaShchutska - 2015-02-11

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf cn_hino.pdf r1 manage 40.0 K 2015-03-25 - 15:09 SerhanMete CN higginso cross-sections @ 13 TeV
Unknown file formatdat hino.dat r2 r1 manage 6.0 K 2017-07-25 - 09:19 LesyaShchutska  
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Topic revision: r11 - 2019-03-07 - AlexanderMann
 
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