# NLO-NNLL wino-like C1C1 cross sections

The following cross sections are for wino-like chargino-chargino pair production. They have been calculated for sqrt(s) = 27 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
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("C1C1", "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 χ̃02χ̃-1 production at sqrt(s) = 27 TeV

mχ̃ [GeV] σ [fb] uncertainty [fb]
50 3.9216e+05 670
75 62714 83.73
100 22414 26.62
125 10328 11.68
150 5486.9 6.033
175 3210.2 3.437
200 2012.3 2.108
225 1328.2 1.365
250 912.82 0.9222
275 648.06 0.6438
300 472.53 0.463
325 352.32 0.3451
350 267.76 0.259
375 206.86 0.1977
400 162.1 0.1555
425 128.64 0.1221
450 103.23 0.09699
475 83.662 0.07785
500 68.411 0.06308
525 56.396 0.05244
550 46.828 0.04317
575 39.142 0.03578
600 32.917 0.02985
625 27.837 0.02505
650 23.663 0.02114
675 20.206 0.01733
700 17.333 0.01478
725 14.93 0.01266
750 12.91 0.01088
775 11.202 0.009395
800 9.7532 0.008139
825 8.5185 0.007075
850 7.4619 0.006168
875 6.5548 0.005393
900 5.7732 0.004806
925 5.097 0.004224
950 4.5106 0.003722
975 4.0004 0.003287
1000 3.5553 0.002908
1025 3.1663 0.00258
1050 2.8251 0.002293
1075 2.5251 0.002042
1100 2.2608 0.001819
1125 2.0277 0.001625
1150 1.8216 0.001436
1175 1.6388 0.001288
1200 1.4765 0.001156
1225 1.3319 0.001038
1250 1.2033 0.0009351
1275 1.0884 0.0008432
1300 0.98566 0.0007612
1325 0.89368 0.0006881
1350 0.81121 0.0006228
1375 0.73714 0.0005643
1400 0.67052 0.0005115
1425 0.61054 0.0004644
1450 0.55643 0.0004228
1475 0.50761 0.0003847
1500 0.46348 0.0003505
1525 0.42357 0.0003195
1550 0.38741 0.0002916
1575 0.35462 0.0002663
1600 0.32485 0.0002449
1625 0.29783 0.0002234
1650 0.27326 0.0002055
1675 0.25089 0.0001882
1700 0.23051 0.0001724
1725 0.21193 0.0001581
1750 0.19493 0.000147
1775 0.17948 0.0001332
1800 0.16532 0.0001224
1825 0.15237 0.0001125
1850 0.1405 0.0001042
1875 0.12963 9.589e-05
1900 0.11968 8.826e-05
1925 0.11055 8.128e-05
1950 0.10216 7.49e-05
1975 0.094462 6.907e-05
2000 0.087381 6.374e-05

-- BasilSchneider - 2018-11-14

This topic: LHCPhysics > WebHome > SUSYCrossSections > SUSYNLONNLLCrossSections27TeVWinoC1C1
Topic revision: r3 - 2019-01-23 - BasilSchneider

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