Fiducial Cross Section Measurements

Aim of the group

In theories beyond the SM, the properties of the 125 GeV Higgs boson may not be determined only by a simple scaling of couplings. Instead, the kinematic distributions in the various Higgs production and decay channels may be sensitively modified by BSM (incl. EFT) effects. Fiducial cross sections (FXS), i.e. cross sections, whether total or differential, for specific states within the phase space de fined by experimental selection and acceptance cuts, provide a largely model-independent way to test for such deviations in kinematic distributions. In particular, differential FXS are a powerful for scrutinizing the SM Lagrangian structure of the Higgs boson interactions, including tests for new tensorial couplings, non-standard production modes, determination of effective form factors, etc.

The measurement of Higgs FXS was already strongly advocated in Section 6 of On the presentation of the LHC Higgs Results arXiv:1307.5865. There are, however, several questions to address on both, the experimental and the theoretical sides, for making most out of FXS measurements. On the experimental side these include, for example, the definition of the fiducial volumes and the unfolding procedure. On the theory side, important issues include the precision of Monte Carlo simulations, the expected BSM effects, and whether some BSM effects might affect the unfolding. The aim of this group is to investigate these questions and provide a coherent view of the state of the art in YR4.

Conveners

  • ATLAS: Florian Urs Bernlochner (Universitaet Bonn)
  • CMS: Predrag Milenovic (University of Florida)
  • Theory: Pier Francesco Monni (University of Oxford), Sabine Kraml (LPSC Grenoble)

Meetings

References

Run 1 results

  • Measurement of the transverse momentum spectrum of the Higgs boson produced in pp collisions at sqrt(s)=8 TeV using the H→WW decays, CMS Collaboration, CMS-PAS-HIG-15-010

  • Measurement of differential and integrated fiducial cross sections for Higgs boson production in the four-lepton decay channel in pp collisions at sqrt(s)= 7 and 8 TeV, CMS Collaboration, arXiv:1512.08377

  • Measurement of differential cross sections for Higgs boson production in the diphoton decay channel in pp collisions at sqrt(s)=8 TeV, CMS Collaboration, arXiv:1508.07819

  • Constraints on non-Standard Model Higgs boson interactions in an effective field theory using differential cross sections measured in the H→γγ decay channel at √s=8 TeV with the ATLAS detector, ATLAS Collaboration, arXiv:1508.02507

  • Measurements of the Total and Differential Higgs Boson Production Cross Sections Combining the H→γγ and H→ZZ*→4ℓ Decay Channels at √s=8 TeV with the ATLAS detector, ATLAS Collaboration, Phys. Rev. Lett. 115, 091801 (2015)

  • Fiducial and differential cross sections of Higgs boson production measured in the four-lepton decay channel in pp collisions at √s=8 TeV with the ATLAS detector, ATLAS Collaboration, Physics Letters B 738 (2014) 234-253

  • Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at √s=8 TeV with ATLAS, ATLAS Collaboration, JHEP09(2014)112

Theory: precision calculations, BSM effects

Selected references, certainly incomplete. Let us know to add your paper.

  • High energy resummation of transverse momentum distributions:Higgs in gluon fusion, Stefano Forte, Claudio Muselli, arXiv:1511.05561

  • Resummation ambiguities in the Higgs transverse-momentum spectrum in the Standard Model and beyond, Emanuele Bagnaschi, Robert V. Harlander, Hendrik Mantler, Alessandro Vicini, Marius Wiesemann, arXiv:1510.08850

  • Pushing Higgs Effective Theory to its Limits, Johann Brehmer, Ayres Freitas, David Lopez-Val, Tilman Plehn, arXiv:1510.03443

  • Fiducial cross sections for Higgs boson production in association with a jet at next-to-next-to-leading order in QCD, Fabrizio Caola, Kirill Melnikov, Markus Schulze arXiv:1508.02684

  • Benchmarks for Higgs Effective Theory: Extended Higgs Sectors, Martin Gorbahn, Jose Miguel No, Veronica Sanz, arXiv:1502.07352

  • Mass Effects in the Higgs-Gluon Coupling: Boosted vs Off-Shell Production, Malte Buschmann, Dorival Goncalves, Silvan Kuttimalai, Marek Schonherr, Frank Krauss, Tilman Plehn, arXiv:1410.5806

  • Resolving the Higgs-Gluon Coupling with Jets, Malte Buschman, Christoph Englert, Dorival Goncalves, Tilman Plehn, Michael Spannowsky, arXiv:1405.7651

  • Complete Higgs Sector Constraints on Dimension-6 Operators, John Ellis, Veronica Sanz, Tevong You, arXiv:1404.3667

  • Probing Higgs couplings with high pT Higgs production, Aleksandr Azatov, Ayan Paul, arXiv:1309.5273

  • Probing top-partners in Higgs+jets, Andrea Banfi, Adam Martin, Veronica Sanz, arXiv:1308.4771

  • Probing the spin-parity of the Higgs boson via jet kinematics in vector boson fusion, A. Djouadi, R.M. Godbole, B. Mellado, K. Mohan, arXiv:1301.4965

Links

-- SabineKraml - 2015-11-12

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