Working Group on Electroweak precision measurements at the LHC

Europe/Zurich
TH Theory Conference Room (CERN)

TH Theory Conference Room

CERN

Michelangelo Mangano (CERN)
Description

 Working group conveners:

  • ATLAS: M. Boonekamp and J. Guimaraes da Costa
  • CMS: M. Schmitt and G.De Monchenault
  • LHCb: R. McNulty and T.Shears
  • LPCC: M. Mangano


 To subscribe to the WG mailing list, go to

http://simba3.web.cern.ch/simba3/SelfSubscription.aspx?groupName=LHC-EWWG

For information relative to

  • housing
  • access to CERN for those not holding a CERN card
  • laptop registration

please check http://lpcc.web.cern.ch/LPCC/index.php?page=visit

    
Participants
  • Abdollah Mohammadi
  • Alberto Guffanti
  • Alessandro Vicini
  • Andrea Banfi
  • Andrei Gritsan
  • Andrey Arbuzov
  • Anne-Marie Magnan
  • Ansgar Denner
  • Ashutosh Kotwal
  • Chiara Mariotti
  • Davide Pagani
  • Dimitri Bourilkov
  • Doreen Wackeroth
  • Efe Yazgan
  • Eleanor Davies
  • Elzbieta Richter-Was
  • Felcini Marta
  • Francesco Rubbo
  • fulvio piccinini
  • Gavin Hesketh
  • Georgios Daskalakis
  • Giancarlo Ferrera
  • Giovanni Franzoni
  • giuseppe bozzi
  • Giuseppe Degrassi
  • Graeme Watt
  • Hwidong Yoo
  • Ilaria Segoni
  • Jeremiah Mans
  • Joao Barreiro Guimaraes Da Costa
  • Johannes Bluemlein
  • Juan Alcaraz Maestre
  • Juan Rojo
  • Juan Suarez Gonzalez
  • Katharina Müller
  • Kuehn Johann
  • Luca Barzè
  • Ludivine Ceard
  • Maarten Boonekamp
  • Maria Ubiali
  • Martin Grunewald
  • Martin Woudstra
  • Massimiliano Bellomo
  • Michelangelo Mangano
  • MIeczyslaw Witold Krasny
  • Mikolaj Cwiok
  • Monika Jindal
  • NITESH Soni
  • Paolo Meridiani
  • Pawel Malecki
  • Pedro Vieira de Castro Ferreira da Silva
  • Pietro Slavich
  • Richard Teuscher
  • Rozmin Kamal Daya
  • Sara Bolognesi
  • Sebastian Buchta
  • Stefan Dittmaier
  • stefania de curtis
  • Stefano Forte
  • Sven Heinemeyer
  • Tobias Kasprzik
  • Tristan du Pree
  • Voica Radescu
  • Wolfgang Hollik
  • Yurii Maravin
  • Zbigniew Was
  • ZHukov Valery
    • 9:00 AM 1:00 PM
      W/Z Cross sections and asymmetries TH Theory Conference Room

      TH Theory Conference Room

      CERN

      • 9:00 AM
        Introduction 10m
        Slides
      • 9:10 AM
        W/Z and DY production, pt spectra, asymmetries: ATLAS 30m
        Speaker: Alberto Belloni (Physics Department - Jefferson Physical Laboratory - Harvard Uni)
        Discussion
        Slides
      • 9:40 AM
        W/Z and DY production, pt spectra, asymmetries: CMS 30m
        Speaker: Prof. Jeremiah Mans (University of Minnesota/CMS)
        Slides
      • 10:10 AM
        W/Z and DY production, pt spectra, asymmetries: LHCb 30m
        Speaker: Dr Tara Shears (UNIVERSITY OF LIVERPOOL)
        Slides
      • 10:40 AM
        Coffee break 20m
      • 11:00 AM
        Simulation of FSR radiation in W and Z decays 20m
        Speaker: Zbigniew Was (High Energy Department - Henryk Niewodniczanski Inst. Nucl. Phys)
        Slides
      • 11:20 AM
        EM/EW corrections in DY Monte Carlos: status, systematics and examples of Tevatron applications 30m
        Speaker: Alessandro Vicini (Dip. di Fisica Nucleare e Teorica-Universita degli Studi di Pavi)
        Slides
      • 11:50 AM
        Discussion 1h 10m
        The goal is to outline and start addressing the issues relevant for a uniform definition of cross sections across the experiments, and for the combination of experimental results, including W+gamma final states Topics to be covered in the discussion: * Common fiducial volumes. Uncertainty in extrapolation of one experiments' results to the others' volume * optimal fiducial volume (minimize theoretical uncertainties) * effects of crack interpolations * possible agreement on theoretical setup (inclusion of QED/EW corrections, reference external PDF set, reference MC codes, etc) * "standardize" correlated and uncorrelated systematic uncertainties to be addressed, and think towards a common approach. * averaging procedures
        • Comparison and combination of W the lepton asymmetry from ATLAS, CMS and LHCb 15m
          Speakers: Alberto Belloni (Physics Department - Jefferson Physical Laboratory - Harvard Uni) , Kristin Lohwasser (Albert-Ludwigs-Universitaet Freiburg)
          Slides
        • Combining TGC results 10m
          Speaker: Prof. Yurii Maravin (KSU)
          Slides
    • 1:00 PM 2:00 PM
      Lunch break 1h
    • 2:00 PM 6:00 PM
      W mass TH Theory Conference Room

      TH Theory Conference Room

      CERN

      • 2:00 PM
        Review of the Tevatron experience 30m
        Speaker: Jan Stark (LPSC Grenoble)
        Slides
      • 2:30 PM
        Discussion of commonalities/differences at the LHC 30m
      • 3:00 PM
        Simulation of inclusive DY pt distributions: comparisons among various calculations (POWHEG, Resbos, DYNNLO, DYQT) 20m
        Speaker: giuseppe bozzi (universita' degli studi di milano)
        Slides
      • 3:20 PM
        Impact of DY modeling and tunings on MW measurement 20m
        Speaker: Alessandro Vicini (Dip. di Fisica Nucleare e Teorica-Universita degli Studi di Pavi)
        Slides
      • 3:40 PM
        Remarks on the PDF systematics in the measurement of MW 30m
        Speaker: Mieczyslaw Krasny (Universites de Paris VI et VII)
        Slides
      • 4:10 PM
        Coffee break 20m
      • 4:30 PM
        MW and PDF sensitivity of Drell-Yan observables 20m
        Speaker: giuseppe bozzi (universita' degli studi di milano)
        Slides
      • 4:50 PM
        MW discussion 40m
        Experimental systematics, detector simulation issues, generation CPU constraints: what are the needs for the studies of precision EW physics? Are there items of common interest to all experiments, in the detector simulation area, for which resources need to be allocated?
  • Tuesday, April 5
    • 9:00 AM 1:00 PM
      PDF issues: systematics for Xsection predictions, and W/Z data as inputs for PDF fits TH Theory Conference Room

      TH Theory Conference Room

      CERN

      • 9:00 AM
        Assessment of the impact of LHC W lepton asymmetry data on PDF fits 30m
        Speaker: Dr Maria Ubiali (RWTH Aachen University)
        Slides
      • 9:30 AM
        W/Z cross sections: PDF systematics at NNLO 30m
        Speaker: Johannes Bluemlein (DESY)
        Slides
      • 10:00 AM
        PDF dependence of W/Z cross sections and lepton charge asymmetry at the LHC 20m
        Speaker: Graeme Watt
        Slides
      • 10:20 AM
        Discussion 30m
      • 10:50 AM
        Coffee break 20m
      • 11:10 AM
        LHCb: tools to incorporate LHCb data in fits 20m
        Speaker: Dr Ronan McNulty (University College Dublin)
        Slides
      • 11:30 AM
        ATLAS tools for PDF fitting of W/Z distributions 20m
        Speaker: Alexandre Glazov (Deutsches Elektronen-Synchrotron (DESY))
        Slides
      • 11:50 AM
        Discussion: Use of LHC jet data in PDF fits 20m
    • 1:00 PM 2:00 PM
      Lunch break 1h
    • 2:00 PM 5:35 PM
      A_FB, sin2thetaW, W+jets, and more TH Theory Conference Room

      TH Theory Conference Room

      CERN

      • 2:00 PM
        First study of AFB and measurement of sin2thetaW at CMS 20m
        Speaker: Andrei Gritsan (Rowland Dept. of Phys. and Astron.-Johns Hopkins University-Unkn)
        Slides
      • 2:20 PM
        LHCb: prospects for a precisce measurement of AFB 30m
        Speaker: Dr Ronan McNulty (University College Dublin)
        Slides
      • 2:50 PM
        Mixed EW/QCD corrections in MCs 20m
        Speaker: Fulvio Piccinini (Unknown)
        Slides
      • 3:10 PM
        Theoretical issues in extracting sin2thetaW from AFB at the LHC: EW corrections, EW-QCD interference, PDFs, ..... 20m
        Speakers: Michelangelo Mangano (CERN) , Wolfgang Hollik
        Slides
      • 3:30 PM
        Coffee break 15m
      • 3:45 PM
        ATLAS: W/Z+jets, including heavy quarks: status and issues 20m
        Speaker: Gavin Hesketh (University College London-University of London)
        Slides
      • 4:05 PM
        CMS: W/Z+jets, including heavy quarks: status and issues 20m
        Speaker: Matthias U. Mozer (Unknown)
        Slides
      • 4:25 PM
        EW corrections to V+jet production at the LHC 20m
        Speaker: Tobias Kasprzik (KIT, Karlsruhe)
        Slides
      • 4:45 PM
        Discussion 50m
        * Algorithms and cone sizes * jet calibration procedures and systematics * Large angle FSR photons and jet/lepton overlap removal. Leptons, neutrinos, FSR photons included or not in jet definition? * Make a list of possible additional measurements, of interest for EW physics or PDF determinations. For example: - W+charm - gamma + charm - Z + b