The 8th Workshop of the LHC Higgs Cross Section Working Group

Europe/Zurich
222/R-001 (CERN)

222/R-001

CERN

41
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Alexandre Nikitenko (Imperial College) , Charalampos Anastasiou (ETH, Zurich) , Chiara Mariotti (INFN Torino) , Christophe Grojean (ICREA, Barcelona) , Daniel de Florian (Universidad de Buenos Aires) , Fabio Maltoni (Universite Catholique de Louvain) , Markus Schumacher (Albert-Ludwigs-Universitaet Freiburg) , Reisaburo Tanaka (LAL, Orsay)
Description
      The LHC Higgs cross-section working group (HXSWG) was created in January 2010. The aim of this group was to produce agreements on cross sections, branching ratios and pseudo-observables relevant to SM and MSSM Higgs boson(s). In spring 2012, the group was restructured and new subgroups were added with the goal of discussing Higgs property/measurement and BSM extensions. Three CERN Reports have been completed, "Inclusive Observables" (CERN-2011- 002), "Differential Distributions" (CERN-2012-002), and "Higgs Properties" (CERN-2013-004). These achievements facilitated the comparison and combination of Higgs results at LHC since the beginning of the LHC physics programme.
 
      After 4 years of activities, our group is being reorganized in view of long LHC shutdown 2013-2014 (LS1) and in order to prepare the future run at higher energy. This new kick-off meeting will pave the way of the work to be carried over to crystallize the various theoretical ideas and predictions into actual recommendations to the experiments.
         
     In the meeting, we will have the opportunity to develop an action plan for three working groups (Higgs XS&BR, Higgs Properties, BSM Higgs),  and to discuss an efficient subgroup structure. In the three physics sessions of Thursday and Friday morning we will have review talks by the TH&EXP WG conveners.  In addition, we would like to welcome open contributions by anyone who wishes to offer ideas and suggestions. We therefore call for short physics presentations that will be scheduled during one of these three physics sessions. In addition, the afternoon session on Friday will be devoted to general discussions on the way the group should operate and what should be its priorities for the next two years. Anyone will also have the opportunity to present his/her ideas either in a form of a short talk at the meeting (~1 slide, 4 minutes max.)  or in a form of a short written contribution (1 page) that will be circulated and commented during the meeting.  We invite you to contact us  if you are interested in presenting something.
Minutes
Proposal by ATLAS and CMS
Participants
  • Achilleas Lazopoulos
  • Alessandro Ballestrero
  • Alexander Karlberg
  • Alexander Mueck
  • Alexandre Nikitenko
  • Analu Custodio
  • Andrea Rizzi
  • Andreas Hoecker
  • Andreas Papaefstathiou
  • André David
  • Babis Anastasiou
  • Biagio Di Micco
  • Bill Murray
  • Bruno Mansoulié
  • Camila Jose Rangel Smith
  • Camilo Andres Carrillo Montoya
  • Carlo Carloni Calame
  • Carlo Enrico Pandini
  • Carlo Oleari
  • Chiara Mariotti
  • Chris Hays
  • Christoph Englert
  • Christophe Grojean
  • Christopher Neu
  • Daniel Enrique de Florian
  • Daniela Rebuzzi
  • Dieter Zeppenfeld
  • Eleni Vryonidou
  • Elisabetta Pianori
  • Emanuele Bagnaschi
  • Emanuele Re
  • Ezio Maina
  • Fabien Tarrade
  • Fabio Maltoni
  • Fabiola Gianotti
  • Florian Goertz
  • Frank Tackmann
  • Franz Herzog
  • G Carrillo Montoya
  • Gavin Salam
  • Georg Weiglein
  • Giancarlo Ferrera
  • Gino Isidori
  • Giulia Zanderighi
  • Giuliano Panico
  • Haifeng Li
  • Heather Logan
  • Hendrik Mantler
  • Jana Schaarschmidt
  • Jason Nielsen
  • Javier Mazzitelli
  • Jean-Baptiste De Vivie De Regie
  • Joey Huston
  • Jose Santiago
  • José Francisco Zurita
  • Juan Rojo
  • Julien Baglio
  • Jérémy Bernon
  • Jürgen Kroseberg
  • Karl Jakobs
  • Laura Reina
  • Magdalena Slawinska
  • Marco Zaro
  • Margherita Ghezzi
  • Maria Vittoria Garzelli
  • Markus Schumacher
  • Marta Felcini
  • Martin Gonzalez-Alonso
  • Marumi Kado
  • Massimiliano Grazzini
  • Matteo Cacciari
  • Michael Duehrssen-Debling
  • Michael Spira
  • Milada Margarete Muehlleitner
  • Monica Vazquez Acosta
  • Nazila Mahmoudi
  • Nicolas Chanon
  • Nikolas Kauer
  • pamela ferrari
  • Patricia Rebello Teles
  • Peter Onyisi
  • Pietro Govoni
  • Pietro Slavich
  • Predrag Milenovic
  • Qiang Li
  • Reisaburo Tanaka
  • Robert Thorne
  • Roberto Contino
  • Roberto Covarelli
  • Roberto Salerno
  • Rosy Nikolaidou
  • Sabine Kraml
  • Stefan Liebler
  • Stefano Boselli
  • Stefano Pozzorini
  • Susan Shotkin Gascon-Shotkin
  • Sven Heinemeyer
  • Tania Robens
  • Tatjana Lenz
  • Thomas Gehrmann
  • Tilman Plehn
  • Ursula Laa
  • Veronica Sanz
  • Zoltan Kunszt
    • Introduction 222/R-001

      222/R-001

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      Convener: Steering Committee
      • 1
        Introduction
        Speaker: Chiara Mariotti (INFN Torino)
        Slides
    • WG2: Higgs Properties 222/R-001

      222/R-001

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      Convener: WG2 Conveners
      • 2
        Prospects of Higgs Property Measurements in RUN-2 and Beyond
        Speakers: André David (CERN) , Michael Duehrssen-Debling (CERN)
        Slides
      • 3
        HH Phenomenology
        • a) Higgs selfcoupling extraction
          Speaker: Julien Baglio (Karlsruhe)
          Slides
        • b) Pinning down the hhVV coupling from Higgs boson pair production in vector-boson fusion
          Speaker: Juan Rojo (CERN, Oxford)
          Slides
        • c) Discussion
      • 4
        Higgs Effective Field Theory
        • a) EFT analysis of inclusive rates
          Speaker: Francesco Riva (Ecole Polytechnique Federale de Lausanne)
          Slides
        • b) EFT analysis of kinematical distributions
          Speaker: Veronica Sanz Gonzalez (Sussex)
          Slides
        • c) Discussion
      • 5
        Tools for Higss Coupling Measurements
        • a) aMC@NLO and Higgs characterization
          Speaker: Marco Zaro (LPTHE-Paris VI)
          Slides
        • b) eHDECAY
          Speaker: Margherita Ghezzi (Torino)
          Slides
        • c) Higgs signals
          Speakers: Georg Ralf Weiglein (DESY) , Sven Heinemeyer (CSIC, Santander)
          Slides
        • d) Lilith
          Speaker: Jeremy Bernon (LPSC, Grenoble)
          Slides
        • e) Discussion
      • 6
        General Discussion on Higgs Coupling Extraction
        • a) Higgs data presentation
          Speaker: Sabine Kraml (LPSC, Grenoble)
          Slides
        • b) A novel approach to Higgs coupling measurements*
          Speakers: Kyle Stuart Cranmer (New York University) , Tilman Plehn (Heidelberg University)
          Slides
        • c) Discussions on Physics and Organization (subgroup structure)
    • 12:30 PM
      Lunch Break 222/R-001

      222/R-001

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    • WG1: Higgs XS&BR 222/R-001

      222/R-001

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      Convener: WG1 Conveners
      • 7
        Experimental Needs on Higgs XS, BR, (N)NLO MC, Jets and PDF
        Speakers: Bruce Mellado (University of the Witwatersrand) , Pasquale Musella (CERN) , Reisaburo Tanaka (LAL, Orsay)
        Keynote
        Slides
      • 8
        ggF
        • a) The gluon fusion Higgs cross-section in N3LO QCD at threshold.
          Speaker: Franz Herzog (ETH Zurich)
          Slides
        • b) ggH at N3LO (approximately)
          Speaker: Richard Ball (Edinburgh University)
          Slides
        • c) Constraints on the Higgs N3LO cross section from the physical kernel
          Speaker: Javier Mazzitelli (Universidad de Buenos Aires)
          Slides
      • 9
        VBF and VH
        • a) Recent theory progress
          Speaker: Giancarlo Ferrera (Milan)
          Slides
        • b) VBF Higgs production and VBS
          Speaker: Dieter Zeppenfeld (Karlsruhe Institute of Technology)
          Slides
      • 10
        Off-shell Effects, Width and Interference
        • a) Width determination from VBF
          Speaker: Roberto Covarelli (University of Rochester)
          Slides
        • b) Off-shell coupling measurements
          Speaker: Christoph Englert
          Slides
        • c) Bounding the Higgs width*
          Speaker: John Campbell
          Slides
      • 4:25 PM
        Coffee/Tea Break
      • 11
        ttH
        • a) ttH signal
          Speaker: Maria Vittoria Garzelli (MTA-DE particle physics research group, Hungary)
          Slides
        • b) ttbar + HF/V + jets backgrounds
          Speaker: Stefano Pozzorini
          Slides
        • c) Discussion
      • 12
        HH Production
        • a) Higgs pair production at NNLO
          Speaker: Daniel De Florian
          Slides
      • 13
        Higgs Decay
        • a) Updates of Higgs branching ratios
          Speaker: Alexander Mück (Aachen)
          Slides
      • 14
        Monte Carlo
        • a) NNLOPS
          Speaker: Giulia Zanderighi (CERN & Oxford)
          Slides
      • 15
        PDF
        • a) News from PDF
          Speaker: Robert Thorne (University College London)
          Slides
      • 16
        General Discussion on Higgs XS&BR
        • a) Discussions on Physics and Organization (subgroup structure)
    • Workshop Dinner 500 Chemin de Baizenas, 01710 Thoiry (Ferme Auberge du Pré Velard)

      500 Chemin de Baizenas, 01710 Thoiry

      Ferme Auberge du Pré Velard

    • WG3: BSM Higgs 222/R-001

      222/R-001

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      Convener: WG3 Conveners
      • 17
        BSM Higgs Search Prospects in RUN-2 and Beyond
        Speakers: German Carrillo Montoya (University of the Witwatersrand) , Mario Pelliccioni (Torino) , Nikolaos Rompotis (University of Washington)
        Slides
      • 18
        2HDM
        • a) Report on recent activities*
          Speaker: Howard Haber (University of California, Santa Cruz)
          Slides
      • 19
        MSSM Higgs
        • a) Higgs-mass calculations in the MSSM
          Speaker: Pietro Slavich (LPTHE, Jussieu)
          Slides
        • b) Neutral-Higgs production
          Speaker: Stefan Liebler (Hamburg)
          Slides
        • c) Charged-Higgs production
          Speaker: Michael Spira (Paul Scherrer Institut)
          Slides
      • 20
        Higgs with Light New Physics
        • a) Latest theory developments
          Speaker: Gino Isidori (Zurich & Frascati)
          Slides
        • b) Discussion
      • 10:40 AM
        Coffee Break
      • 21
        Higgs Exotic Decays
        • a) Exotic Higgs searches*
          Speaker: Matthew Strassler (Rutgers University)
          Slides
        • b) Discussion
      • 22
        General Discussion on BSM Higgs
        • a) Higgs singlet extension*
          Speaker: Tania Robens (TU Dresden)
          Slides
        • b) Discussions on Physics and Organization (subgroup structure)
    • 12:20 PM
      Lunch Break 222/R-001

      222/R-001

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    • General Discussion 222/R-001

      222/R-001

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      Convener: Steering Committee
      • 23
        Open Discussions
        With presence of CERN (S. Bertolucci), ATLAS and CMS directions
        • a) Proposal 1
          Speaker: Nikolas Kauer (Royal Holloway, University of London)
          Slides
      • 24
        WG1: Higgs XS&BR Group Structure*
        Speakers: Bruce Mellado (University of the Witwatersrand) , Pasquale Musella (CERN)
        Slides
      • 25
        WG2: Higgs Properties Group Structure
        Speakers: André David (CERN) , Michael Duehrssen-Debling (CERN)
        Slides
      • 26
        WG3: BSM Higgs Group Structure
        Speakers: German Carrillo Montoya (University of the Witwatersrand) , Mario Pelliccioni (INFN Torino) , Nikolaos Rompotis (University of Washington)
        Slides