WORKSHOP tau lepton decays: hadronic currents from Belle BaBar data and LHC signatures

Europe/Zurich
5301

5301

Description
II WORKSHOP 
 
tau lepton decays: hadronic currents from data of  Belle and BaBar and new physics signatures at LHC .
 
Institute of Nuclear Physics PAN, Cracow Poland, Radzikowskiego 152
 
15-22 September 2013
 
Purpose of the meeting
 
Tau leptons, elementary constituents of matter are of fundamental importance for science. Better modelling of their decays in modern language of hadronic interactions at intermediate energies may lead to a breakthrough in understanding relation between quantum chromodynamics and effective models of hadrons interactions. This is important not only for description of hadrons interactions themselves, but also for strophysics. Evolution of stars and modelling of early Universe depends on strong interactions. Tau leptons are used for establishing signatures of New Physics at LHC measurements, better understanding of their decays may lead to better separation between signals of new physics and backgrounds.
The purpose of the meeting is to discuss work on and embed, for tau lepton decays, the theoretical predictions calculated from models like Resonance Chiral Theory, into phenomenologically useful tools. Better algorithms for confronting theoretical predictions with experimental data have to be also prepared. Then, final adaptation of theoretical predictions (fits to the data of the effective couplings and masses) has to be performed. If after the fits discrepancies remain, the model under investigation can be excluded but guidance for the further development is obtained.
Discussing tools and progressing in work within such a programme is the main purpose of the meeting. Thanks to the results of this project physics gains of high energy experiments will be improved as well, in particular of LHC experiments. Better description of the data, in form of hadronic currents consistent with theoretical models, may give new starting point for studies of QCD at low and intermediate energies. In these regimes perturbative methods are so far of limited use and need refinement. Such outcome would be of the great importance and can provide a breakthrough.
Related topics are expected to be discussed during the meeting as well and the complete frame of this workshop will be organized to stimulate present work on research concentrated around TAUOLA (in particulat TauSpinner) PHOTOS Monte Carlo programs as well as their practical use and systematic uncertainties.


Organizers/contact persons:
1) Zbigniew Was zbigniew.was (at) ifj.edu.pl
2) Anna Kaczmarska anna.kaczmarska (at) ifj.edu.pl 
3) Andrzej Bozek andrzej.bozek (at) ifj.edu.pl 
4) Tadeusz Lesiak tadeusz.lesiak (at) ifj.edu.pl
5) Olga Shekhovtsova olga.shekhovtsova (at) ifj.edu.pl
6) SECRETARIAT Jolanta Mosurek Jolanta.Mosurek (at) ifj.edu.pl
 
                                      phone (secretariat) +48 12 6628 221

                                      skype:                ifj.conf

                                       Meeting room: 5301

     Indico: https://indico.cern.ch/conferenceModification.py?confId=261349
 

    • 9:15 AM 9:30 AM
      Introduction: relations between τ activities. 15m
      Speaker: Zbigniew Andrzej Was (Polish Academy of Sciences (PL))
      Slides
    • 9:35 AM 10:15 AM
      Strong coupling from tau lepton decays 40m
      Speaker: Mr Matthias Jamin
      Slides
    • 10:15 AM 10:50 AM
      Using dispersion relations for hadronic tau decays: from SM to New Physics 35m
      Speaker: Mrs Emilie Passemar (Institut de Physique Nucléaire)
      Slides
    • 10:50 AM 10:55 AM
      Coffee break 5m

      4208

    • 1:00 PM 2:00 PM
      Lunch 1h

      Cafeteria downstairs

    • 9:15 AM 9:25 AM
      A short introduction 10m
      Speaker: Zbigniew Andrzej Was (Polish Academy of Sciences (PL))
      Slides
    • 9:25 AM 10:00 AM
      Three pion decay of tau in RChL 35m
      Speaker: olga shekhovtsova
      Slides
    • 10:00 AM 10:45 AM
      Fitting the Invariant Mass Spectra from BaBar 45m
      Speaker: Ian Michael Nugent (TRIUMF (CA))
      Slides
    • 10:45 AM 11:05 AM
      Coffee break 20m

      4208

    • 11:05 AM 11:35 AM
      Study of τ → Kη(η ′ )ν in the framework of RChT 30m
      Speaker: Sergi Gonzalez-Solis
      Slides
    • 11:35 AM 12:05 PM
      Kπ modes 30m
      Speaker: Matthias Jamin
      Slides
    • 12:05 PM 12:35 PM
      Status of tau decay in ππη 30m
      Speaker: Vladimir Cherepanov (Rheinisch-Westfaelische Tech. Hoch. (DE))
      Slides
    • 1:05 PM 2:00 PM
      Lunch 55m

      Cafeteria downstairs

    • 2:00 PM 2:30 PM
      Probing τ lepton electromagnetic dipole moments through its leptonic radiative decays 30m
      Speaker: Fael Matteo
      Slides
    • 2:30 PM 3:00 PM
      RChL and hadronic currents theoretical uncertainty 30m
      Speaker: Pablo Roig (IFAE)
      Slides
    • 9:15 AM 9:30 AM
      Tauspinner -- principles 15m
      Speaker: Zbigniew Andrzej Was (Polish Academy of Sciences (PL))
      Slides
    • 9:30 AM 10:00 AM
      Testing the nature of new states at the LHC with tau leptons 30m
      Speaker: Jan Henryk Kalinowski (University of Warsaw (PL))
      Slides
    • 10:00 AM 10:30 AM
      ATLAS Tau Reconstruction - Status and Plans 30m
      Speaker: Peter Wagner (Universitaet Bonn (DE))
      Slides
    • 10:30 AM 10:35 AM
      short break 5m
    • 10:35 AM 11:05 AM
      Perspectives for measuring the polarization of tau leptons in the ATLAS experiment, access RESTRICTED 30m
      Speaker: Pawel Malecki (Polish Academy of Sciences (PL))
      Slides
    • 11:05 AM 11:30 AM
      cofee break 25m

      4208

    • 11:30 AM 12:00 PM
      Bremsstrahlung. High energy 30m
      Speaker: Zbigniew Andrzej Was (Polish Academy of Sciences (PL))
      Slides
    • 12:00 PM 12:30 PM
      KKMC Status and Outlook 30m
      Speaker: Staszek Jadach (Polish Academy of Sciences (PL))
      Slides
    • 9:15 AM 9:50 AM
      The study of Michel parameters in leptonic tau decays at Belle 35m
      Speaker: Denis Epifanov (U)
      Slides
    • 9:50 AM 10:15 AM
      LFV decay at LHCb 25m
      Speaker: Marcin Chrzaszcz (University of Zurich (CH), Polish Academy of Sciences (PL))
      Slides
    • 10:15 AM 11:00 AM
      Feasibility study for a search for τ → µγ decay at Super C-τ factory 45m
      Speaker: Alexander Bobrov (Budker Institute of Nuclear Physics (BINP))
      Slides
    • 1:15 PM 2:00 PM
      INFN tau factory 45m
      Speaker: Luca Silvestrini (INFN Rome)
      Slides
    • 9:15 AM 9:45 AM
      Bremsstrahlung – low energy 30m
      Speaker: Zbigniew Andrzej Was (Polish Academy of Sciences (PL))
      Slides
    • 9:45 AM 10:15 AM
      Determination of |Vcb| and |Vub| from semileptonic B meson decays at Belle 30m
      Speaker: Schwanda Cristoph
      Slides
    • 10:15 AM 10:45 AM
      RC for τ → Kπν 30m
      Speaker: Mrs Emilie Passemar (Institut de Physique Nucléaire)
      Slides
    • 10:45 AM 11:00 AM
      Coffee break 15m

      4208

    • 11:00 AM 11:45 AM
      TauSpinner update and future plans for Tauola++ 45m
      Speaker: Tomasz Przedzinski (Jagiellonian University (PL))
      Slides
      Source code
    • 11:45 AM 12:00 PM
      Model parameterfitswithMC-supportedgradient methodto BaBar collaborationTaulepton data 15m
      Speaker: Jakub Zaremba
      Slides
    • 12:00 PM 12:30 PM
      Summary --> what next? 30m
      Speaker: Zbigniew Andrzej Was (Polish Academy of Sciences (PL))