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Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV

  • Benjamin Fuks
  • Michael Klasen
  • David R. Lamprea
  • Marcel Rothering
Open Access
Article

Abstract

Motivated by hints for a light Standard Model-like Higgs boson and a shift in experimental attention towards electroweak supersymmetry particle production at the CERN LHC, we update in this paper our precision predictions at next-to-leading order of perturbative QCD matched to resummation at the next-to-leading logarithmic accuracy for direct gaugino pair production in proton-proton collisions with a center-of-mass energy of 8 TeV. Tables of total cross sections are presented together with the corresponding scale and parton density uncertainties for benchmark points adopted recently by the experimental collaborations, and figures are presented for up-to-date model lines attached to them. Since the experimental analyses are currently obtained with parton showers matched to multi-parton matrix elements, we also analyze the precision of this procedure by comparing invariant-mass and transverse-momentum distributions obtained in this way to those obtained with threshold and transverse-momentum resummation.

Keywords

Supersymmetry Phenomenology Monte Carlo Simulations 

References

  1. [1]
    ATLAS collaboration, G. Aad et al., Combined search for the standard model Higgs boson using up to 4.9 fb −1 of pp collision data at \(\sqrt{s}=7\;TeV\) with the ATLAS detector at the LHC, Phys. Lett. B 710 (2012) 49 [arXiv:1202.1408] [INSPIRE].ADSGoogle Scholar
  2. [2]
    CMS collaboration, S. Chatrchyan et al., Combined results of searches for the standard model Higgs boson in pp collisions at \(\sqrt{s}=7\;TeV\), Phys. Lett. B 710 (2012) 26 [arXiv:1202.1488] [INSPIRE].ADSCrossRefGoogle Scholar
  3. [3]
    H.P. Nilles, Supersymmetry, supergravity and particle physics, Phys. Rept. 110 (1984) 1 [INSPIRE].ADSCrossRefGoogle Scholar
  4. [4]
    H.E. Haber and G.L. Kane, The search for supersymmetry: probing physics beyond the standard model, Phys. Rept. 117 (1985) 75 [INSPIRE].ADSCrossRefGoogle Scholar
  5. [5]
    CMS collaborations collaboration, S. Lowette and o.b. o.t. ATLAS, Supersymmetry searches with ATLAS and CMS, arXiv:1205.4053 [INSPIRE].
  6. [6]
    S. AbdusSalam, B. Allanach, H. Dreiner, J. Ellis, U. Ellwanger, et al., Benchmark models, planes, lines and points for future SUSY searches at the LHC, Eur. Phys. J. C 71 (2011) 1835 [arXiv:1109.3859] [INSPIRE].ADSCrossRefGoogle Scholar
  7. [7]
    A. Kulesza and L. Motyka, Threshold resummation for squark-antisquark and gluino-pair production at the LHC, Phys. Rev. Lett. 102 (2009) 111802 [arXiv:0807.2405] [INSPIRE].ADSCrossRefGoogle Scholar
  8. [8]
    A. Kulesza and L. Motyka, Soft gluon resummation for the production of gluino-gluino and squark-antisquark pairs at the LHC, Phys. Rev. D 80 (2009) 095004 [arXiv:0905.4749] [INSPIRE].ADSGoogle Scholar
  9. [9]
    W. Beenakker, S. Brensing, M. Krämer, A. Kulesza, E. Laenen and I. Niessen, Soft-gluon resummation for squark and gluino hadroproduction, JHEP 12 (2009) 041 [arXiv:0909.4418] [INSPIRE].ADSCrossRefGoogle Scholar
  10. [10]
    W. Beenakker, S. Brensing, M. Krämer, A. Kulesza, E. Laenen and I. Niessen, Supersymmetric top and bottom squark production at hadron colliders, JHEP 08 (2010) 098 [arXiv:1006.4771] [INSPIRE].ADSCrossRefGoogle Scholar
  11. [11]
    W. Beenakker, S. Brensing, M. Krämer, A. Kulesza, E. Laenen, et al., Squark and gluino hadroproduction, Int. J. Mod. Phys. A 26 (2011) 2637 [arXiv:1105.1110] [INSPIRE].ADSCrossRefGoogle Scholar
  12. [12]
    M. Krämer, A. Kulesza, R. van der Leeuw, M. Mangano, S. Padhi, et al., Supersymmetry production cross sections in pp collisions at \(\sqrt{s}=7\;TeV\), arXiv:1206.2892 [INSPIRE].
  13. [13]
    ATLAS collaboration, G. Aad et al., Search for supersymmetry in events with three leptons and missing transverse momentum in \(\sqrt{s}=7\;TeV\) pp collisions with the ATLAS detector, Phys. Rev. Lett. 108 (2012) 261804 [arXiv:1204.5638] [INSPIRE].ADSCrossRefGoogle Scholar
  14. [14]
    D. Curtin, P. Jaiswal and P. Meade, Charginos hiding in plain sight, arXiv:1206.6888 [INSPIRE].
  15. [15]
    J. Debove, B. Fuks and M. Klasen, Model-independent analysis of gaugino-pair production in polarized and unpolarized hadron collisions, Phys. Rev. D 78 (2008) 074020 [arXiv:0804.0423] [INSPIRE].ADSGoogle Scholar
  16. [16]
    J. Debove, B. Fuks and M. Klasen, Threshold resummation for gaugino pair production at hadron colliders, Nucl. Phys. B 842 (2011) 51 [arXiv:1005.2909] [INSPIRE].ADSCrossRefGoogle Scholar
  17. [17]
    W. Beenakker, M. Klasen, M. Krämer, T. Plehn, M. Spira, et al., The production of charginos/neutralinos and sleptons at hadron colliders, Phys. Rev. Lett. 83 (1999) 3780 [Erratum ibid. 100 (2008) 029901] [hep-ph/9906298] [INSPIRE].ADSCrossRefGoogle Scholar
  18. [18]
    J. Debove, B. Fuks and M. Klasen, Transverse-momentum resummation for gaugino-pair production at hadron colliders, Phys. Lett. B 688 (2010) 208 [arXiv:0907.1105] [INSPIRE].ADSCrossRefGoogle Scholar
  19. [19]
    J. Debove, B. Fuks and M. Klasen, Joint resummation for gaugino pair production at hadron colliders, Nucl. Phys. B 849 (2011) 64 [arXiv:1102.4422] [INSPIRE].ADSCrossRefGoogle Scholar
  20. [20]
    G. Bozzi, B. Fuks and M. Klasen, Slepton production in polarized hadron collisions, Phys. Lett. B 609 (2005) 339 [hep-ph/0411318] [INSPIRE].ADSCrossRefGoogle Scholar
  21. [21]
    G. Bozzi, B. Fuks and M. Klasen, Transverse-momentum resummation for slepton-pair production at the CERN LHC, Phys. Rev. D 74 (2006) 015001 [hep-ph/0603074] [INSPIRE].ADSGoogle Scholar
  22. [22]
    G. Bozzi, B. Fuks and M. Klasen, Threshold resummation for slepton-pair production at hadron colliders, Nucl. Phys. B 777 (2007) 157 [hep-ph/0701202] [INSPIRE].ADSCrossRefGoogle Scholar
  23. [23]
    G. Bozzi, B. Fuks and M. Klasen, Joint resummation for slepton pair production at hadron colliders, Nucl. Phys. B 794 (2008) 46 [arXiv:0709.3057] [INSPIRE].ADSCrossRefGoogle Scholar
  24. [24]
    T. Plehn, Measuring the MSSM Lagrangean, Czech. J. Phys. 55 (2005) B213 [hep-ph/0410063] [INSPIRE].Google Scholar
  25. [25]
    T. Binoth, D. Goncalves Netto, D. Lopez-Val, K. Mawatari, T. Plehn and I. Wigmore, Automized squark-neutralino production to next-to-leading order, Phys. Rev. D 84 (2011) 075005 [arXiv:1108.1250] [INSPIRE].ADSGoogle Scholar
  26. [26]
    E.L. Berger, M. Klasen and T.M. Tait, Associated production of gauginos and gluinos at hadron colliders in next-to-leading order SUSY QCD, Phys. Lett. B 459 (1999) 165 [hep-ph/9902350] [INSPIRE].ADSCrossRefGoogle Scholar
  27. [27]
    E.L. Berger, M. Klasen and T.M. Tait, Next-to-leading order SUSY QCD predictions for associated production of gauginos and gluinos, Phys. Rev. D 62 (2000) 095014 [Erratum-ibid. 67 (2003) 099901] [hep-ph/0005196] [INSPIRE].ADSGoogle Scholar
  28. [28]
    M. Spira, Higgs and SUSY particle production at hadron colliders, hep-ph/0211145 [INSPIRE].
  29. [29]
    G. Corcella, I. Knowles, G. Marchesini, S. Moretti, K. Odagiri, et al., HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes), JHEP 01 (2001) 010 [hep-ph/0011363] [INSPIRE].ADSCrossRefGoogle Scholar
  30. [30]
    T. Sjöstrand, S. Mrenna and P.Z. Skands, PYTHIA 6.4 physics and manual, JHEP 05 (2006) 026 [hep-ph/0603175] [INSPIRE].ADSCrossRefGoogle Scholar
  31. [31]
    M.L. Mangano, M. Moretti, F. Piccinini, R. Pittau and A.D. Polosa, ALPGEN, a generator for hard multiparton processes in hadronic collisions, JHEP 07 (2003) 001 [hep-ph/0206293] [INSPIRE].ADSCrossRefGoogle Scholar
  32. [32]
    J. Alwall, M. Herquet, F. Maltoni, O. Mattelaer and T. Stelzer, MadGraph 5: going beyond, JHEP 06 (2011) 128 [arXiv:1106.0522] [INSPIRE].ADSCrossRefGoogle Scholar
  33. [33]
    B. Fuks, M. Klasen, F. Ledroit, Q. Li and J. Morel, Precision predictions for Z - Production at the CERN LHC: QCD matrix elements, parton showers and joint resummation, Nucl. Phys. B 797 (2008) 322 [arXiv:0711.0749] [INSPIRE].ADSCrossRefGoogle Scholar
  34. [34]
    C. Weydert, S. Frixione, M. Herquet, M. Klasen, E. Laenen, et al., Charged Higgs boson production in association with a top quark in MC@NLO, Eur. Phys. J. C 67 (2010) 617 [arXiv:0912.3430] [INSPIRE].ADSCrossRefGoogle Scholar
  35. [35]
    M. Klasen, K. Kovarik, P. Nason and C. Weydert, Associated production of charged Higgs bosons and top quarks with POWHEG, arXiv:1203.1341 [INSPIRE].
  36. [36]
    B. Allanach, M. Battaglia, G. Blair, M.S. Carena, A. De Roeck, et al., The snowmass points and slopes: benchmarks for SUSY searches, Eur. Phys. J. C 25 (2002) 113 [hep-ph/0202233] [INSPIRE].ADSCrossRefGoogle Scholar
  37. [37]
    J.A. Aguilar-Saavedra, A. Ali, B.C. Allanach, R.L. Arnowitt, H.A. Baer, et al., Supersymmetry parameter analysis: SPA convention and project, Eur. Phys. J. C 46 (2006) 43 [hep-ph/0511344] [INSPIRE].ADSCrossRefGoogle Scholar
  38. [38]
    CERN, LHC physics center at CERN, http://cern.ch/lpcc.
  39. [39]
    A. Kulesza et al., LHC SUSY cross section working group, https://twiki.cern.ch/twiki/bin/view/LHCPhysics/SUSYCrossSections.
  40. [40]
    V.D. Barger, R. Robinett, W.-Y. Keung and R. Phillips, Production of gauge fermions at colliders, Phys. Lett. B 131 (1983) 372 [INSPIRE].ADSCrossRefGoogle Scholar
  41. [41]
    S. Dawson, E. Eichten and C. Quigg, Search for supersymmetric particles in hadron - Hadron collisions, Phys. Rev. D 31 (1985) 1581 [INSPIRE].ADSGoogle Scholar
  42. [42]
    M. Klasen, Determining SUSY particle mixing with polarized hadron beams, PoS DIS2010 (2010) 233 [arXiv:1005.3503] [INSPIRE].Google Scholar
  43. [43]
    G. Bozzi, B. Fuks, B. Herrmann and M. Klasen, Squark and gaugino hadroproduction and decays in non-minimal flavour violating supersymmetry, Nucl. Phys. B 787 (2007) 1 [arXiv:0704.1826] [INSPIRE].ADSCrossRefGoogle Scholar
  44. [44]
    F. del Aguila, J. Aguilar-Saavedra, B. Allanach, J. Alwall, Y. Andreev, et al., Collider aspects of flavour physics at high Q, Eur. Phys. J. C 57 (2008) 183 [arXiv:0801.1800] [INSPIRE].ADSGoogle Scholar
  45. [45]
    B. Fuks, B. Herrmann and M. Klasen, Flavour violation in gauge-mediated supersymmetry breaking models: experimental constraints and phenomenology at the LHC, Nucl. Phys. B 810 (2009) 266 [arXiv:0808.1104] [INSPIRE].ADSCrossRefGoogle Scholar
  46. [46]
    A. Martin, W. Stirling, R. Thorne and G. Watt, Parton distributions for the LHC, Eur. Phys. J. C 63 (2009) 189 [arXiv:0901.0002] [INSPIRE].ADSCrossRefGoogle Scholar
  47. [47]
    CDF and D0 collaboration, T.E.W. Group, Combination of CDF and D0 results on the mass of the top quark, arXiv:0903.2503 [INSPIRE].
  48. [48]
    Particle Data Group collaboration, K. Nakamura et al., Review of particle physics, J. Phys. G 37 (2010) 075021 [INSPIRE].ADSCrossRefGoogle Scholar
  49. [49]
    A. Djouadi, J.-L. Kneur and G. Moultaka, Suspect: a Fortran code for the supersymmetric and Higgs particle spectrum in the MSSM, Comput. Phys. Commun. 176 (2007) 426 [hep-ph/0211331] [INSPIRE].ADSzbMATHCrossRefGoogle Scholar
  50. [50]
    A. Vogt, Next-to-next-to-leading logarithmic threshold resummation for deep inelastic scattering and the Drell-Yan process, Phys. Lett. B 497 (2001) 228 [hep-ph/0010146] [INSPIRE].ADSCrossRefGoogle Scholar
  51. [51]
    M. Krämer, E. Laenen and M. Spira, Soft gluon radiation in Higgs boson production at the LHC, Nucl. Phys. B 511 (1998) 523 [hep-ph/9611272] [INSPIRE].ADSCrossRefGoogle Scholar
  52. [52]
    S. Catani, D. de Florian and M. Grazzini, Higgs production in hadron collisions: soft and virtual QCD corrections at NNLO, JHEP 05 (2001) 025 [hep-ph/0102227] [INSPIRE].ADSCrossRefGoogle Scholar
  53. [53]
    A. Kulesza, G.F. Sterman and W. Vogelsang, Joint resummation in electroweak boson production, Phys. Rev. D 66 (2002) 014011 [hep-ph/0202251] [INSPIRE].ADSGoogle Scholar
  54. [54]
    L.G. Almeida, G.F. Sterman and W. Vogelsang, Threshold resummation for di-hadron production in hadronic collisions, Phys. Rev. D 80 (2009) 074016 [arXiv:0907.1234] [INSPIRE].ADSGoogle Scholar
  55. [55]
    H. Contopanagos and G.F. Sterman, Principal value resummation, Nucl. Phys. B 419 (1994) 77 [hep-ph/9310313] [INSPIRE].ADSCrossRefGoogle Scholar
  56. [56]
    S. Catani, M.L. Mangano, P. Nason and L. Trentadue, The resummation of soft gluons in hadronic collisions, Nucl. Phys. B 478 (1996) 273 [hep-ph/9604351] [INSPIRE].ADSCrossRefGoogle Scholar
  57. [57]
    M. Bahr, S. Gieseke, M. Gigg, D. Grellscheid, K. Hamilton, et al., HERWIG++ physics and manual, Eur. Phys. J. C 58 (2008) 639 [arXiv:0803.0883] [INSPIRE].ADSCrossRefGoogle Scholar
  58. [58]
    T. Sjöstrand, S. Mrenna and P.Z. Skands, A brief introduction to PYTHIA 8.1, Comput. Phys. Commun. 178 (2008) 852 [arXiv:0710.3820] [INSPIRE].ADSzbMATHCrossRefGoogle Scholar
  59. [59]
    S. Frixione and B.R. Webber, Matching NLO QCD computations and parton shower simulations, JHEP 06 (2002) 029 [hep-ph/0204244] [INSPIRE].ADSCrossRefGoogle Scholar
  60. [60]
    S. Frixione, P. Nason and B.R. Webber, Matching NLO QCD and parton showers in heavy flavor production, JHEP 08 (2003) 007 [hep-ph/0305252] [INSPIRE].ADSCrossRefGoogle Scholar
  61. [61]
    P. Nason, A new method for combining NLO QCD with shower Monte Carlo algorithms, JHEP 11 (2004) 040 [hep-ph/0409146] [INSPIRE].ADSCrossRefGoogle Scholar
  62. [62]
    S. Catani, F. Krauss, R. Kuhn and B. Webber, QCD matrix elements + parton showers, JHEP 11 (2001) 063 [hep-ph/0109231] [INSPIRE].ADSCrossRefGoogle Scholar
  63. [63]
    F. Krauss, Matrix elements and parton showers in hadronic interactions, JHEP 08 (2002) 015 [hep-ph/0205283] [INSPIRE].ADSCrossRefGoogle Scholar
  64. [64]
    M.L. Mangano, M. Moretti, F. Piccinini and M. Treccani, Matching matrix elements and shower evolution for top-quark production in hadronic collisions, JHEP 01 (2007) 013 [hep-ph/0611129] [INSPIRE].ADSCrossRefGoogle Scholar
  65. [65]
    S. Mrenna and P. Richardson, Matching matrix elements and parton showers with HERWIG and PYTHIA, JHEP 05 (2004) 040 [hep-ph/0312274] [INSPIRE].ADSCrossRefGoogle Scholar
  66. [66]
    F. Krauss, A. Schalicke, S. Schumann and G. Soff, Simulating W/Z + jets production at the Tevatron, Phys. Rev. D 70 (2004) 114009 [hep-ph/0409106] [INSPIRE].ADSGoogle Scholar
  67. [67]
    S. Hoeche, F. Krauss, N. Lavesson, L. Lönnblad, M. Mangano, et al., Matching parton showers and matrix elements, hep-ph/0602031 [INSPIRE].
  68. [68]
    J. Alwall, S. Hoche, F. Krauss, N. Lavesson, L. Lönnblad, et al., Comparative study of various algorithms for the merging of parton showers and matrix elements in hadronic collisions, Eur. Phys. J. C 53 (2008) 473 [arXiv:0706.2569] [INSPIRE].ADSCrossRefGoogle Scholar
  69. [69]
    J. Alwall, S. de Visscher and F. Maltoni, QCD radiation in the production of heavy colored particles at the LHC, JHEP 02 (2009) 017 [arXiv:0810.5350] [INSPIRE].ADSCrossRefGoogle Scholar
  70. [70]
    P. de Aquino, K. Hagiwara, Q. Li and F. Maltoni, Simulating graviton production at hadron colliders, JHEP 06 (2011) 132 [arXiv:1101.5499] [INSPIRE].ADSCrossRefGoogle Scholar
  71. [71]
    P. de Aquino, F. Maltoni, K. Mawatari and B. Oexl, Light gravitino production in association with gluinos at the LHC, JHEP 10 (2012) 008 [arXiv:1206.7098] [INSPIRE].CrossRefGoogle Scholar
  72. [72]
    C. Degrande, C. Duhr, B. Fuks, D. Grellscheid, O. Mattelaer, et al., UFO - The universal FeynRules output, Comput. Phys. Commun. 183 (2012) 1201 [arXiv:1108.2040] [INSPIRE].ADSCrossRefGoogle Scholar
  73. [73]
    N.D. Christensen and C. Duhr, FeynRules - Feynman rules made easy, Comput. Phys. Commun. 180 (2009) 1614 [arXiv:0806.4194] [INSPIRE].ADSCrossRefGoogle Scholar
  74. [74]
    N.D. Christensen, P. de Aquino, C. Degrande, C. Duhr, B. Fuks, et al., A comprehensive approach to new physics simulations, Eur. Phys. J. C 71 (2011) 1541 [arXiv:0906.2474] [INSPIRE].ADSGoogle Scholar
  75. [75]
    C. Duhr and B. Fuks, A superspace module for the FeynRules package, Comput. Phys. Commun. 182 (2011) 2404 [arXiv:1102.4191] [INSPIRE].ADSzbMATHCrossRefGoogle Scholar
  76. [76]
    S. Catani, Y.L. Dokshitzer, M. Seymour and B. Webber, Longitudinally invariant K t clustering algorithms for hadron hadron collisions, Nucl. Phys. B 406 (1993) 187 [INSPIRE].ADSCrossRefGoogle Scholar
  77. [77]
    M. Cacciari and G.P. Salam, Dispelling the N 3 myth for the K t jet-finder, Phys. Lett. B 641 (2006) 57 [hep-ph/0512210] [INSPIRE].ADSCrossRefGoogle Scholar
  78. [78]
    E. Conte, B. Fuks and G. Serret, MadAnalysis 5, a user-friendly framework for collider phenomenology, arXiv:1206.1599 [INSPIRE].

Copyright information

© SISSA 2012

Authors and Affiliations

  • Benjamin Fuks
    • 1
  • Michael Klasen
    • 2
  • David R. Lamprea
    • 2
  • Marcel Rothering
    • 2
  1. 1.Institut Pluridisciplinaire Hubert Curien/Département Recherches SubatomiquesUniversité de Strasbourg/CNRS-IN2P3StrasbourgFrance
  2. 2.Institut für Theoretische PhysikWestfälische Wilhelms-Universität MünsterMünsterGermany

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