T. Figy

Publications (10)0 Total impact

• Article: Release Note -- Vbfnlo-2.6.0

  K. Arnold, J. Bellm, G. Bozzi, F. Campanario, C. Englert, B. Feigl, J. Frank, T. Figy, B. Jager, M. Kerner, M. Kubocz, C. Oleari, S. Palmer, M. Rauch, H. Rzehak, F. Schissler, O. Schlimpert, M. Spannowsky, D. Zeppenfeld
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  ABSTRACT: Vbfnlo is a flexible parton level Monte Carlo program for the simulation of vector boson fusion (VBF), double and triple vector boson (plus jet) production in hadronic collisions at next-to-leading order (NLO) in the strong coupling constant, as well as Higgs boson plus two jet production via gluon fusion at the one-loop level. This note briefly describes the main additional features and processes that have been added in the new release -- Vbfnlo Version 2.6.0. At NLO QCD diboson production (W\gamma, WZ, ZZ, Z\gamma and \gamma\gamma), same-sign W pair production via vector boson fusion and the process W\gamma\gamma j have been implemented (for which one-loop tensor integrals up to six-point functions are included). In addition, gluon induced diboson production can be studied separately at the leading order (one-loop) level. The diboson processes WW, WZ and W\gamma can be run with anomalous gauge boson couplings, and anomalous couplings between a Higgs and a pair of gauge bosons is included in WW, ZZ, Z\gamma and \gamma\gamma diboson production. The code has also been extended to include anomalous gauge boson couplings for single vector boson production via VBF, and a spin-2 model has been implemented for diboson pair production via vector boson fusion.
  07/2012;
• Source

  Available from: Francisco Campanario

  Article: VBFNLO: A parton level Monte Carlo for processes with electroweak bosons -- Manual for Version 2.6.0

  K. Arnold, J. Bellm, G. Bozzi, M. Brieg, F. Campanario, C. Englert, B. Feigl, J. Frank, T. Figy, F. Geyer, [......], C. Oleari, S. Palmer, S. Platzer, M. Rauch, H. Rzehak, F. Schissler, O. Schlimpert, M. Spannowsky, M. Worek, D. Zeppenfeld
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  ABSTRACT: Vbfnlo is a flexible parton level Monte Carlo program for the simulation of vector boson fusion (VBF), double and triple vector boson production (plus jet) in hadronic collisions at next-to-leading order (NLO) in the strong coupling constant, as well as Higgs boson plus two jet production via gluon fusion at the one-loop level. In the new release -- Version 2.6.0 -- several new processes have been added at NLO QCD: diboson production W\gamma, WZ, ZZ, Z\gamma and \gamma\gamma), same-sign W pair production via vector boson fusion and the triboson plus jet process W\gamma\gamma j. In addition, gluon induced diboson production has been implemented at the leading order (one-loop) level. The diboson processes WW, WZ and W\gamma can be run with anomalous gauge boson couplings, and anomalous couplings between a Higgs and a pair of gauge bosons is included in WW, ZZ, Z\gamma and \gamma\gamma diboson production. The code has also been extended to include anomalous couplings for single vector boson production via VBF, and a spin-2 model has been implemented for diboson pair production via vector boson fusion.
  07/2011;
• Source

  Available from: Francisco Campanario

  Article: VBFNLO: A parton level Monte Carlo for processes with electroweak bosons

  K. Arnold, M. Bahr, G. Bozzi, F. Campanario, C Englert, T. Figy, N. Greiner, C Hackstein, V. Hankele, B. Jager, G. Klamke, M. Kubocz, C. Oleari, S. Platzer, S. Prestel, M. Worek, D. Zeppenfeld
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  ABSTRACT: VBFNLO is a fully flexible parton level Monte Carlo program for the simulation of vector boson fusion, double and triple vector boson production in hadronic collisions at next-to-leading order in the strong coupling constant. VBFNLO includes Higgs and vector boson decays with full spin correlations and all off-shell effects. In addition, VBFNLO implements CP-even and CP-odd Higgs boson via gluon fusion, associated with two jets, at the leading-order one-loop level with the full top- and bottom-quark mass dependence in a generic two-Higgs-doublet model. A variety of effects arising from beyond the Standard Model physics are implemented for selected processes. This includes anomalous couplings of Higgs and vector bosons and a Warped Higgsless extra dimension model. The program offers the possibility to generate Les Houches Accord event files for all processes available at leading order. Comment: 23 pages, 10 tables
  11/2008;
• Source

  Available from: Alexander Belyaev

  Article: Higgs Working Group Summary Report

  S. Dawson, M. Grazzini, A. Nikitenko, M. Schumacher, N. E. Adam, T. Aziz, J. R. Andersen, A. Belyaev, T. Binoth, S. Catani, [......], J. M. Smillie, A. Sopczak, M. Spira, M. Takahashi, A. M. Teixeira, I. R. Tomalin, M. Vazquez Acosta, G. Weiglein, C. D. White, D. Zeppenfeld
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  ABSTRACT: Report of the Working Group on Higgs Bosons for the Workshop, ``Physics at TeV Colliders'', Les Houches, France, 11-29 June, 2007.
  03/2008;
• Source

  Available from: ArXiv

  Article: Anomalous Higgs boson couplings in vector boson fusion at the CERN LHC

  T. Figy, V. Hankele, G. Klamke, D. Zeppenfeld
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  ABSTRACT: Deviations from SM expectations in the Higgs sector can be parameterized by an effective Lagrangian. The corresponding anomalous couplings have been implemented in a Monte Carlo program for Higgs production in vector boson fusion, at NLO QCD accuracy. It allows to study anomalous coupling effects for production and decay of the Higgs boson. We analyze deviations allowed by LEP data and study a new azimuthal angle variable which directly measures the interference between CP-even, CP-odd and SM couplings.
  10/2006;
• Source

  Available from: arxiv.org

  Article: QCD corrections to vector boson fusion processes

  T. Figy, C. Oleari, D. Zeppenfeld
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  ABSTRACT: NLO QCD corrections to H, W and Z production via vector boson fusion have recently been calculated in the form of flexible parton level Monte Carlo programs. This allows for the calculation of distributions and cross sections with cuts at NLO accuracy. Some features of the calculation, as well as results for the LHC, are reviewed. Comment: 1 style file, 1 latex file, 5 figures, Contribution to the Proceedings of "Loops and Legs in Quantum Field Theory, 2004", Zinnowitz, Usedom Island, Germany, April, 2004
  07/2004;
• Source

  Available from: arxiv.org

  Article: Next-to-leading order jet distributions for Higgs boson production via weak-boson fusion

  T. Figy, C. Oleari, D. Zeppenfeld
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  ABSTRACT: The weak-boson fusion process is expected to provide crucial information on Higgs boson couplings at the Large Hadron Collider at CERN. The achievable statistical accuracy demands comparison with next-to-leading order QCD calculations, which are presented here in the form of a fully flexible parton Monte Carlo program. QCD corrections are determined for jet distributions and are shown to be modest, of order 5 to 10% in most cases, but reaching 30% occasionally. Remaining scale uncertainties range from order 5% or less for distributions to below +-2% for the Higgs boson cross section in typical weak-boson fusion search regions.
  07/2003;
• Source

  Available from: Michael Spira

  Article: The Higgs Working Group: Summary Report (2001)

  D Cavalli, A. Djouadi, K Jakobs, A. Nikitenko, M. Spira, C. E. M. Wagner, W. M. Yao, K. A. Assamagan, G Azuelos, S. Balatenychev, [......], A. Pukhov, D. Rainwater, E. Richter-Was, D. P. Roy, C. R. Schmidt, A Semenov, J Thomas, I. Vivarelli, G. Weiglein, D. Zeppenfeld
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  ABSTRACT: Report of the Higgs working group for the Workshop `Physics at TeV Colliders', Les Houches, France, 21 May - 1 June 2001. It contains 7 separate sections: A. Theoretical Developments B. Higgs Searches at the Tevatron C. Experimental Observation of an invisible Higgs Boson at LHC D. Search for the Standard Model Higgs Boson using Vector Boson Fusion at the LHC E. Study of the MSSM channel $A/H \to \tau \tau$ at the LHC F. Searching for Higgs Bosons in $t\bar t H$ Production G. Studies of Charged Higgs Boson Signals for the Tevatron and the LHC
  04/2002;
• Article: Vbfnlo: A parton level Monte Carlo for processes with electroweak bosons

  K. Arnold, M. Bähr, G. Bozzi, F. Campanario, C. Englert, T. Figy, N. Greiner, C. Hackstein, V. Hankele, B. Jäger, G. Klämke, M. Kubocz, C. Oleari, S. Plätzer, S. Prestel, M. Worek, D. Zeppenfeld
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  ABSTRACT: Vbfnlo is a fully flexible parton level Monte Carlo program for the simulation of vector boson fusion, double and triple vector boson production in hadronic collisions at next-to-leading order in the strong coupling constant. Vbfnlo includes Higgs and vector boson decays with full spin correlations and all off-shell effects. In addition, Vbfnlo implements CP-even and CP-odd Higgs boson via gluon fusion, associated with two jets, at the leading-order one-loop level with the full top- and bottom-quark mass dependence in a generic two-Higgs-doublet model.A variety of effects arising from beyond the Standard Model physics are implemented for selected processes. This includes anomalous couplings of Higgs and vector bosons and a Warped Higgsless extra dimension model. The program offers the possibility to generate Les Houches Accord event files for all processes available at leading order.Program summaryProgram title:VbfnloCatalogue identifier: AEDO_v1_0Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEDO_v1_0.htmlProgram obtainable from: CPC Program Library, Queen's University, Belfast, N. IrelandLicensing provisions: GPL version 2No. of lines in distributed program, including test data, etc.: 339 218No. of bytes in distributed program, including test data, etc.: 2 620 847Distribution format: tar.gzProgramming language: Fortran, parts in C++Computer: AllOperating system: Linux, should also work on other systemsClassification: 11.1, 11.2External routines: Optionally Les Houches Accord PDF Interface library and the GNU Scientific libraryNature of problem: To resolve the large scale dependence inherent in leading order calculations and to quantify the cross section error induced by uncertainties in the determination of parton distribution functions, it is necessary to include NLO corrections. Moreover, whenever stringent cuts are required on decay products and/or identified jets the question arises whether the scale dependence and a k-factor, defined as the ratio of NLO to LO cross section, determined for the inclusive production cross sections are valid for the search region one is interested in.Solution method: The problem is best addressed by implementing the one-loop QCD corrections in a fully flexible NLO parton-level Monte Carlo program, where arbitrary cuts can be specified as well as various scale choices. In addition, any currently available parton distribution function set can be used through the LHAPDF library.Running time: Depending on the process studied. Usually from minutes to hours.
  Computer Physics Communications.
• Article: The Higgs Working Group: Summary Report (2001)

  D Cavalli, A. Djouadi, K Jakobs, A. Nikitenko, M. Spira, CEM Wagner, WM Yao, KA Assamagan, G Azuelos, S. Balatenychev, [......], A. Pukhov, D. Rainwater, E. Richter-Was, DP Roy, CR Schmidt, A Semenov, J Thomas, I. Vivarelli, G. Weiglein, D. Zeppenfeld
  [show abstract] [hide abstract]
  ABSTRACT: Report of the Higgs working group for the Workshop `Physics at TeV Colliders', Les Houches, France, 21 May - 1 June 2001. It contains 7 separate sections: A. Theoretical Developments B. Higgs Searches at the Tevatron C. Experimental Observation of an invisible Higgs Boson at LHC D. Search for the Standard Model Higgs Boson using Vector Boson Fusion at the LHC E. Study of the MSSM channel $A/H \to \tau \tau$ at the LHC F. Searching for Higgs Bosons in $t\bar t H$ Production G. Studies of Charged Higgs Boson Signals for the Tevatron and the LHC.