NLO-NNLL wino-like N2C1 cross sections

The following cross sections are for wino-like chargino-neutralino pair production (sum of χ̃+1χ̃02 and χ̃-1χ̃02, and also for each subprocess individually). They have been calculated for sqrt(s) = 14 TeV at NLO-NNLL using Resummino 2.0.1 from B. Fuks et al. The Monte Carlo PDF set with 100 replicas PDF4LHC15_mc is used, which is a statistical combination of CT14, MMHT14 and NNPDF3.0, all using αs(mZ2) = 0.118. The use of this combination of PDF sets is recommended for searches for new Physics by the PDF4LHC Working Group. See https://arxiv.org/abs/1510.03865 for more details.

The cross sections are computed for degenerate charginos and neutralinos. The mass is denoted as mχ̃. The following sentence describes all the assumptions in the cross section calculations and is suitable to be included in the description of the interpretation of your results:

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

When using these cross sections, some references have to be cited. They can be found below in bibtex format. The references can also be downloaded from this Twiki, see attachments at the bottom.

Resummino:

@article{Debove:2010kf,
      author         = "Debove, Jonathan and Fuks, Benjamin and Klasen, Michael",
      title          = "{Threshold resummation for gaugino pair production at
                        hadron colliders}",
      journal        = "Nucl. Phys. B",
      volume         = "842",
      year           = "2011",
      pages          = "51-85",
      doi            = "10.1016/j.nuclphysb.2010.08.016",
      eprint         = "1005.2909",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "IPHC-PHENO-10-02, LPSC-10-050",
      SLACcitation   = "%%CITATION = ARXIV:1005.2909;%%"
}
@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;%%",
}
@article{Fiaschi:2018hgm,
      author         = "Fiaschi, Juri and Klasen, Michael",
      title          = "{Neutralino-chargino pair production at NLO+NLL with
                        resummation-improved parton density functions for LHC Run
                        II}",
      journal        = "Phys. Rev. D",
      volume         = "98",
      year           = "2018",
      number         = "5",
      pages          = "055014",
      doi            = "10.1103/PhysRevD.98.055014",
      eprint         = "1805.11322",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "MS-TP-18-19",
      SLACcitation   = "%%CITATION = ARXIV:1805.11322;%%"
}

LHAPDF:

@article{Buckley:2014ana,
      author         = "Buckley, Andy and Ferrando, James and Lloyd, Stephen and
                        Nordström, Karl and Page, Ben and Rüfenacht, Martin and
                        Schönherr, Marek and Watt, Graeme",
      title          = "{LHAPDF6: parton density access in the LHC precision
                        era}",
      journal        = "Eur. Phys. J.",
      volume         = "C75",
      year           = "2015",
      pages          = "132",
      doi            = "10.1140/epjc/s10052-015-3318-8",
      eprint         = "1412.7420",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "GLAS-PPE-2014-05, MCNET-14-29, IPPP-14-111, DCPT-14-222",
      SLACcitation   = "%%CITATION = ARXIV:1412.7420;%%"
}

PDF4LHC:

@article{Butterworth:2015oua,
      author         = "Butterworth, Jon and others",
      title          = "{PDF4LHC recommendations for LHC Run II}",
      journal        = "J. Phys.",
      volume         = "G43",
      year           = "2016",
      pages          = "023001",
      doi            = "10.1088/0954-3899/43/2/023001",
      eprint         = "1510.03865",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "OUTP-15-17P, SMU-HEP-15-12, TIF-UNIMI-2015-14,
                        LCTS-2015-27, CERN-PH-TH-2015-249",
      SLACcitation   = "%%CITATION = ARXIV:1510.03865;%%"
}
@article{Carrazza:2015hva,
      author         = "Carrazza, Stefano and Latorre, José I. and Rojo, Juan
                        and Watt, Graeme",
      title          = "{A compression algorithm for the combination of PDF
                        sets}",
      journal        = "Eur. Phys. J.",
      volume         = "C75",
      year           = "2015",
      pages          = "474",
      doi            = "10.1140/epjc/s10052-015-3703-3",
      eprint         = "1504.06469",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "TIF-UNIMI-2015-2, OUTP-15-01P, IPPP-15-22, DCPT-15-44",
      SLACcitation   = "%%CITATION = ARXIV:1504.06469;%%"
}
@article{Watt:2012tq,
      author         = "Watt, G. and Thorne, R. S.",
      title          = "{Study of Monte Carlo approach to experimental
                        uncertainty propagation with MSTW 2008 PDFs}",
      journal        = "JHEP",
      volume         = "08",
      year           = "2012",
      pages          = "052",
      doi            = "10.1007/JHEP08(2012)052",
      eprint         = "1205.4024",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "CERN-PH-TH-2012-132, LCTS-2012-11",
      SLACcitation   = "%%CITATION = ARXIV:1205.4024;%%"
}

CT14:

@article{Dulat:2015mca,
      author         = "Dulat, Sayipjamal and Hou, Tie-Jiun and Gao, Jun and
                        Guzzi, Marco and Huston, Joey and Nadolsky, Pavel and
                        Pumplin, Jon and Schmidt, Carl and Stump, Daniel and Yuan,
                        C. P.",
      title          = "{New parton distribution functions from a global analysis
                        of quantum chromodynamics}",
      journal        = "Phys. Rev.",
      volume         = "D93",
      year           = "2016",
      number         = "3",
      pages          = "033006",
      doi            = "10.1103/PhysRevD.93.033006",
      eprint         = "1506.07443",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      SLACcitation   = "%%CITATION = ARXIV:1506.07443;%%"
}

MMHT14:

@article{Harland-Lang:2014zoa,
      author         = "Harland-Lang, L. A. and Martin, A. D. and Motylinski, P.
                        and Thorne, R. S.",
      title          = "{Parton distributions in the LHC era: MMHT 2014 PDFs}",
      journal        = "Eur. Phys. J.",
      volume         = "C75",
      year           = "2015",
      number         = "5",
      pages          = "204",
      doi            = "10.1140/epjc/s10052-015-3397-6",
      eprint         = "1412.3989",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "LCTS-2014-47, IPPP-14-97, DCPT-14-194",
      SLACcitation   = "%%CITATION = ARXIV:1412.3989;%%"
}

NNPDF:

@article{Ball:2014uwa,
      author         = "Ball, Richard D. and others",
      title          = "{Parton distributions for the LHC Run II}",
      collaboration  = "NNPDF",
      journal        = "JHEP",
      volume         = "04",
      year           = "2015",
      pages          = "040",
      doi            = "10.1007/JHEP04(2015)040",
      eprint         = "1410.8849",
      archivePrefix  = "arXiv",
      primaryClass   = "hep-ph",
      reportNumber   = "EDINBURGH-2014-15, IFUM-1034-FT, CERN-PH-TH-2013-253,
                        OUTP-14-11P, CAVENDISH-HEP-14-11",
      SLACcitation   = "%%CITATION = ARXIV:1410.8849;%%"
}

To calculate these cross sections, this repository can be used. The SLHA files can be found there as well: wino.in and hino.in.

Should cross section information be needed for a mass that is not tabulated below, one can obtain it by 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("C1N2", "wino", mass)' 

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

NLO+NNLL Wino cross sections for combined χ̃02χ̃+1 and χ̃02χ̃-1 production at sqrt(s) = 14 TeV

mχ̃ [GeV] σ [fb] uncertainty [fb]
50 453090 760.5
75 69749 90.84
100 24309.5 27.98
125 10974.5 12.103
150 5725.8 6.093
175 3294.6 3.435
200 2031.81 2.0739
225 1319.9 1.331
250 892.7 0.8858
275 623.41 0.6156
300 447.26 0.43
325 327.92 0.31013
350 244.972 0.2281
375 185.904 0.16564
400 143.079 0.12602
425 111.464 0.09718
450 87.768 0.07577
475 69.776 0.06023
500 55.939 0.04812
525 45.19 0.03857
550 36.756 0.03113
575 30.0768 0.025265
600 24.7639 0.02068
625 20.4906 0.016792
650 17.0326 0.013883
675 14.2147 0.011518
700 11.9149 0.009608
725 10.0242 0.008047
750 8.4605 0.00676
775 7.1765 0.005728
800 6.0852 0.004838
825 5.1941 0.004145
850 4.4386 0.0035694
875 3.79698 0.0030128
900 3.25738 0.0025928
925 2.80039 0.002226
950 2.4121 0.0019155
975 2.08109 0.0016502
1000 1.79822 0.0014249
1025 1.5566 0.0012384
1050 1.34957 0.0010736
1075 1.17175 0.0009336
1100 1.01872 0.0008141
1125 0.88698 0.0007125
1150 0.77344 0.0006269
1175 0.67497 0.0005536
1200 0.5897 0.00049
1225 0.51582 0.00043881
1250 0.45158 0.00039293
1275 0.395717 0.00035548
1300 0.34718 0.00032653
1325 0.305019 0.0003057
1350 0.268228 0.00029375
1375 0.236144 0.00028886
1400 0.202895 0.00016403
1425 0.17831 0.00014511
1450 0.156786 0.00012702
1475 0.138006 0.00012301
1500 0.121491 0.00011202
1525 0.107005 0.00010199
1550 0.09434 7.423e-05
1575 0.083125 6.545e-05
1600 0.073196 7.183e-05
1625 0.064537 6.44e-05
1650 0.058294 0.00022857
1675 0.050192 5.159e-05
1700 0.044326 3.5817e-05
1725 0.0401429 0.00022072
1750 0.0345182 2.8006e-05
1775 0.0303266 2.6969e-05
1800 0.0275796 6.642e-05
1825 0.0239712 4.836e-05
1850 0.0208988 1.7758e-05
1875 0.0184593 1.5672e-05
1900 0.0162996 1.3899e-05
1925 0.0144256 1.2028e-05
1950 0.0127432 1.7476e-05
1975 0.0112465 9.45e-06
2000 0.0099278 8.386e-06

NLO+NNLL Wino cross sections for χ̃02χ̃+1 production at sqrt(s) = 14 TeV

mχ̃ [GeV] σ [fb]Sorted ascending uncertainty [fb]
1500 0.092944 8.594e-05
1525 0.081861 7.733e-05
1550 0.072259 5.906e-05
1575 0.063667 5.212e-05
1600 0.055952 5.298e-05
1625 0.049305 4.679e-05
1650 0.043921 6.767e-05
1675 0.038305 3.731e-05
1700 0.033898 2.861e-05
1725 0.030287 5.982e-05
1750 0.026365 2.239e-05
1775 0.023154 2.1e-05
1800 0.021065 4.219e-05
1825 0.018307 3.143e-05
1850 0.015904 1.412e-05
1875 0.014031 1.248e-05
1900 0.012374 1.106e-05
1925 0.01094 9.628e-06
1950 0.0095714 9.223e-06
1975 0.0085024 7.57e-06
2000 0.0074931 6.717e-06
1375 0.18175 0.0002489
1400 0.15513 0.0001296
1425 0.13637 0.0001144
1450 0.11995 0.0001004
1475 0.10557 9.529e-05
1300 0.26602 0.000268
1325 0.23407 0.0002544
1350 0.20614 0.0002486
1225 0.3936 0.0003505
1250 0.34506 0.0003161
1275 0.30278 0.0002885
1200 0.4493 0.0003883
1150 0.58751 0.0004929
1175 0.51349 0.0004364
1125 0.67258 0.0005575
1100 0.77114 0.0006346
1075 0.88542 0.0007252
1050 1.0179 0.0008313
1025 1.1718 0.000956
1000 1.351 0.001095
975 1.5603 0.001267
950 1.8045 0.001466
925 2.09 0.001698
900 2.425 0.001971
50 2.6427e+05 452.2
875 2.8194 0.002283
850 3.2877 0.002692
825 3.8352 0.003119
800 4.476 0.003628
775 5.2658 0.004279
750 6.184 0.005029
725 7.3028 0.005965
700 8.6495 0.007096
675 10.281 0.008474
650 12.273 0.01017
625 14.705 0.01225
600 17.696 0.015
575 21.395 0.01825
550 26.026 0.02238
525 31.842 0.0276
500 39.215 0.03427
475 48.655 0.04291
450 60.857 0.0535
425 76.835 0.06824
400 98.02 0.088
375 126.53 0.115
350 165.59 0.1568
325 220.05 0.2118
300 297.83 0.2915
275 411.7 0.4198
250 584.45 0.5954
225 856.05 0.8925
200 1304.4 1.371
175 2091.8 2.261
150 3591.1 3.95
125 6789.7 7.747
100 14810 17.53
75 41727 55.66

NLO+NNLL Wino cross sections for χ̃02χ̃-1 production at sqrt(s) = 14 TeV

mχ̃ [GeV] σ [fb] uncertainty [fb]
50 1.8882e+05 308.3
75 28022 35.18
100 9499.5 10.45
125 4184.8 4.356
150 2134.7 2.143
175 1202.8 1.174
200 727.41 0.7029
225 463.85 0.4385
250 308.25 0.2904
275 211.71 0.1958
300 149.43 0.1385
325 107.87 0.09833
350 79.382 0.0713
375 59.374 0.05064
400 45.059 0.03802
425 34.629 0.02894
450 26.911 0.02227
475 21.121 0.01732
500 16.724 0.01385
525 13.348 0.01097
550 10.73 0.00875
575 8.6818 0.007015
600 7.0679 0.00568
625 5.7856 0.004542
650 4.7596 0.003713
675 3.9337 0.003044
700 3.2654 0.002512
725 2.7214 0.002082
750 2.2765 0.001731
775 1.9107 0.001449
800 1.6092 0.00121
825 1.3589 0.001026
850 1.1509 0.0008774
875 0.97758 0.0007298
900 0.83238 0.0006218
925 0.71039 0.000528
950 0.6076 0.0004495
975 0.52079 0.0003832
1000 0.44722 0.0003299
1025 0.3848 0.0002824
1050 0.33167 0.0002423
1075 0.28633 0.0002084
1100 0.24758 0.0001795
1125 0.2144 0.000155
1150 0.18593 0.000134
1175 0.16148 0.0001172
1200 0.1404 0.0001017
1225 0.12222 8.831e-05
1250 0.10652 7.683e-05
1275 0.092937 6.698e-05
1300 0.08116 5.853e-05
1325 0.070949 5.13e-05
1350 0.062088 4.515e-05
1375 0.054394 3.996e-05
1400 0.047765 3.443e-05
1425 0.04194 3.071e-05
1450 0.036836 2.662e-05
1475 0.032436 2.772e-05
1500 0.028547 2.608e-05
1525 0.025144 2.466e-05
1550 0.022081 1.517e-05
1575 0.019458 1.333e-05
1600 0.017244 1.885e-05
1625 0.015232 1.761e-05
1650 0.014373 0.0001609
1675 0.011887 1.428e-05
1700 0.010428 7.207e-06
1725 0.0098559 0.0001609
1750 0.0081532 5.616e-06
1775 0.0071726 5.969e-06
1800 0.0065146 2.423e-05
1825 0.0056642 1.693e-05
1850 0.0049948 3.638e-06
1875 0.0044283 3.192e-06
1900 0.0039256 2.839e-06
1925 0.0034856 2.4e-06
1950 0.0031718 8.253e-06
1975 0.0027441 1.88e-06
2000 0.0024347 1.669e-06

-- BasilSchneider - 2018-11-14


This topic: LHCPhysics > WebHome > SUSYCrossSections > SUSYNLONNLLCrossSections14TeVWinoN2C1
Topic revision: r3 - 2019-01-23 - BasilSchneider
 
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