NLO-NLL hino-like neutralino-neutralino (N2N1) cross sections

The following cross sections are for hino-like neutralino-neutralino pair production (χ̃01χ̃02). 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. The calculation assumes the χ̃02 and χ̃01 are degenerate, with mass denoted below as mχ̃. 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("N1N2","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 χ̃01χ̃02

mχ̃ [GeV] xsec [fb] uncertainty [fb]
80 8039.52 334.653
100 3277.01 120.646
150 715.14 30.1429
200 244.213 11.7039
250 104.252 5.48542
300 50.9994 2.92105
350 27.3286 1.66094
400 15.6691 1.00609
450 9.44017 0.636781
500 5.90757 0.413476
550 3.8167 0.275884
600 2.53015 0.190847
650 1.71418 0.132968
700 1.18113 0.0940638
750 0.826366 0.067662
800 0.586211 0.0505623
850 0.420556 0.0360593
900 0.305935 0.0279147
950 0.22285 0.0204919
1000 0.16428 0.015677
1050 0.121865 0.0117916
1100 0.0912469 0.0087975
1150 0.0684561 0.00709167
1200 0.0516263 0.00529162
1250 0.0391587 0.00410133
1300 0.0299353 0.00322793
1350 0.0228072 0.00249572
1400 0.0175031 0.00195389
1450 0.0134572 0.0014916

CTEQ6.6 numbers: NLO-NLL hino-like χ̃01χ̃02

mχ̃ [GeV] xsec [fb] -scale unc [%] +scale unc [%] -pdf unc [%] +pdf unc [%]
80 8045.00 -3.0 0.6 -3.0 2.9
100 3204 -1.1 0 -2.9 2.9
150 693.08 -0.6 0 -3.1 3.1
200 235.18 -0.5 0.2 -3.4 3.5
250 99.86 -0.4 0.2 -3.7 3.9
300 48.622 -0.4 0.3 -4.1 4.2
350 25.966 -0.4 0.4 -4.5 4.6
400 14.824 -0.3 0.3 -4.8 5.1
450 8.8967 -0.3 0.1 -5.1 5.4
500 5.5507 -0.2 0 -5.3 5.9
550 3.5773 -0.2 0 -5.7 6.1
600 2.3634 -0.2 0 -5.9 6.7
650 1.5979 -0.3 0 -6.3 7
700 1.0989 -0.4 0 -6.5 7.3
750 0.76808 -0.7 0 -6.9 7.5
800 0.54341 -1 0.2 -7.1 8
850 0.38905 -0.6 0.1 -7.3 8.3
900 0.2811 -0.4 0.2 -7.3 9
950 0.20544 -1.1 0.2 -8.1 8.5
1000 0.15082 -1 0.4 -8.1 9.4
1050 0.11175 -1 0.5 -8.4 9.8
1100 0.083415 -0.5 0.3 -8.9 9.7
1150 0.062435 -1.3 0.5 -9 10.4
1200 0.047143 -1.3 0.5 -9.7 10.3
1250 0.035643 -1.1 0.7 -9.8 11.2
1300 0.027125 -1.1 0.4 -10.7 11.4
1350 0.020689 -1.3 0.8 -10.6 12.1
1400 0.015869 -1.5 0.9 -11 12.1
1450 0.0122 -1.3 1 -11.6 12.3

MSTW2008nlo90cl numbers: NLO-NLL hino-like χ̃01χ̃02

mχ̃ [GeV] xsec [fb] -scale unc [%] +scale unc [%] -pdf unc [%] +pdf unc [%]
80 8107.47 -3.2 0.6 -3.0 3.3
100 3252.6 -1.2 0 -3 3.3
150 712.53 -0.6 0 -3.2 3.3
200 244.01 -0.5 0.2 -3.4 3.5
250 104.35 -0.5 0.3 -3.6 3.7
300 51.102 -0.5 0.5 -3.9 3.9
350 27.419 -0.4 0.5 -4 4.1
400 15.719 -0.4 0.3 -4.2 4.4
450 9.4677 -0.4 0.3 -4.5 4.6
500 5.927 -0.3 0.1 -4.6 4.8
550 3.8269 -0.2 0 -4.6 5.2
600 2.5338 -0.2 0.1 -4.7 5.7
650 1.7168 -0.2 0 -4.9 5.8
700 1.1818 -0.4 0 -4.9 6.2
750 0.82489 -0.7 0 -4.9 6.8
800 0.58405 -0.5 0 -5.7 7
850 0.41821 -0.9 0.1 -5.7 7.2
900 0.30251 -0.5 0.3 -6.2 8.3
950 0.22075 -1.3 0.4 -5.7 8.5
1000 0.16227 -1 0.4 -6 9.1
1050 0.12007 -1.1 0.5 -6.3 9.4
1100 0.08934 -1.1 0.4 -6.6 10
1150 0.066901 -1.1 0.4 -7.1 10.8
1200 0.05028 -1.4 0.8 -7.3 11
1250 0.037973 -1.5 0.8 -7.7 11.6
1300 0.028847 -1.8 0.4 -9.2 11.8
1350 0.021991 -1.8 0.3 -9.1 12
1400 0.016685 -1.5 1.6 -9.1 13.9
1450 0.012766 -1.3 1.6 -8.9 14.6

-- LesyaShchutska - 2015-02-11

Topic attachments
I Attachment History Action Size Date Who Comment
Unknown file formatdat hino.dat r2 r1 manage 6.0 K 2017-07-25 - 09:19 LesyaShchutska  
PDFpdf n1n2_hino.pdf r1 manage 39.7 K 2015-03-25 - 15:11 SerhanMete N1N2 higgsino cross-secitons @ 13 TeV
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Topic revision: r12 - 2019-04-16 - LesyaShchutska
 
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