TOP LHC WG meeting

May 21, 2014, 9:00 AM → May 23, 2014, 6:00 PM Europe/Zurich

4/3-006 - TH Conference Room (CERN)

Maria Jose Costa (IFIC Valencia (ES)), Michelangelo Mangano (CERN), Roberto Chierici (Universite Claude Bernard-Lyon I (FR))

Periodic open meeting of the TOP LHC Working Group.

The first day, Wednesday May 21, will be dedicated to the measurement of the top mass, in the format of a miniworkshop, with a specific focus on the discussion of the theoretical systematics, the theoretical interpretation, and of ideas/proposals for new mtop measurements at the LHC. The allotted time per talk includes discussion.

Vidyo will be available

Wed, May 21

9:00 AM → 10:30 AM Top mass: introduction session

9:00 AM Introduction to top mass miniworkshop and TOPLHCWG open session

Speakers: Dr Maria Jose Costa (IFIC Valencia (ES)), Michelangelo Mangano (CERN), Roberto Chierici (Universite Claude Bernard-Lyon I (FR))

Slides TOPLHCWG_Introduction_21.05.14.pdf TOPLHCWG_Introduction_21.05.14.ppt

9:20 AM Report on the first top mass World Average

Speaker: Oleg Brandt (Ruprecht-Karls-Universitaet Heidelberg (DE))

Slides 2014_05_21_WorldAvg_TopLHCWG_BRANDT.pdf

9:55 AM New results on m_top, MSbar mass and differential cross sections

Speakers: Matthew Dowling (DESY), S. Moch (UHH)

Slides MDowlingTopWG.pdf

10:30 AM → 11:00 AM Coffe break

11:00 AM → 12:30 PM Top mass: systematic errors I

11:00 AM Colour Reconnection and top mass dependence on kinematic variables

Speaker: Pedro Vieira De Castro Ferreira Da Silva (CERN)

Slides toplhcwg_may2014.pdf

11:30 AM Hadronisation and radiation systematics and b-fragmentation

Speaker: Tancredi Carli (CERN)

Slides TopLHCRadHad.pdf

12:00 PM Hadronization systematics on the top mass

Speaker: Gennaro Corcella (INFN - LNF)

Slides thad.pdf

12:30 PM → 2:00 PM Lunch

2:00 PM → 3:00 PM Top mass: new developments I

2:00 PM Interpretation of top quark mass measurements

Speaker: Andre Hoang (U)

Slides Top-Mass-Theory.pdf

3:00 PM → 3:30 PM coffe break

3:30 PM → 6:20 PM Top mass: new developments II

3:30 PM Non standard measurements of the top mass

Speaker: Sebastian Naumann-Emme (Deutsches Elektronen-Synchrotron (DE))

Slides naumann-emme_toplhcwg_may2014.pdf

4:15 PM ME technique at NLO to extract mtop from dilepton events

Speaker: Pierre Artoisenet (Univerite catholique de Louvain)

Slides Artoisenet-1.pdf

4:45 PM New method for precise determination of top quark mass at LHC

Speaker: sayaka kawabata

Slides 140521TopWG_CERN_v2.pdf

5:15 PM Top mass extraction from dilepton events

Speaker: Alexander Dimitrov Mitov (University of Cambridge (GB))

Slides Alexander_Mitov_top-mass-CERN-topWG-2014.pdf

5:45 PM Studies on the top mass

Speaker: Paolo Nason (Unknown)

Slides Cern-21-5-2014-bl.pdf

Thu, May 22

9:00 AM → 10:50 AM Top mass: systematic errors II

9:00 AM NLO QCD to WWbb

Speaker: Jan Winter (Dresden University)

Slides mlb.pdf

9:30 AM Top mass from the bottom energy peak

Speaker: Roberto Franceschini (University of Maryland (US))

Slides short_energy_peak_low.pdf

9:45 AM Discussion session: top mass TH systematics

Speaker: Michelangelo Mangano (CERN)

Slides mangano.pdf

10:30 AM → 11:00 AM coffe break

11:00 AM → 12:30 PM Top pair modelling

11:00 AM ttbar modelling uncertainties and further questions to theory

Speakers: Carmen Diez Pardos (Deutsches Elektronen-Synchrotron (DE)), Liza Mijovic (Universitaet Bonn (DE))

Slides Mijovic_ttmod_theo.pdf

11:45 AM Issues in the top pt distribution in ME+PS and NLO+PS

Speaker: Paolo Nason (Unknown)

Slides Cern-21-5-2014-TopPt.pdf

12:00 PM A POWHEG generator for top production including exact spin correlations and radiation in decay

Speaker: Paolo Nason (Unknown)

Slides Cern-21-5-2014-Newgen.pdf

12:30 PM → 2:00 PM Lunch

2:00 PM → 3:00 PM Top pair cross section and b-tagging

2:00 PM b-tagging recommendations for combinations

Speakers: James Michael Keaveney (Vrije Universiteit Brussel (VUB) - Interuniversitary Institute for high energies (IIHE) (BE)), Luca Scodellaro (Universidad de Cantabria (ES)), Martin Zur Nedden (Humboldt-Universitaet zu Berlin (DE))

Slides TOPLHC_140522_OpenSession.pdf

2:30 PM Combination plans for the top pair cross sections

Speakers: Elizaveta Shabalina (Georg-August-Universitaet Goettingen (DE)), Maria Aldaya Martin (Hamburg University (DE))

Slides LHC_xsec_combination_220514.pdf

3:00 PM → 3:30 PM Single top I

3:00 PM tW combinations and plan for t-channel and Vtb

Speaker: Alberto Orso Maria Iorio (Universita e INFN (IT))

Slides TOPLHCWG_SingleTop_Combinations.pdf

3:30 PM → 4:00 PM coffe break

4:00 PM → 5:30 PM Single top I

4:00 PM t-channel NNLO cross section

Speaker: Fabrizio Caola (Johns Hopkins University)

Slides twgNNLO.pdf

4:30 PM Single-top with complex-mass scheme matched to showers

Speaker: Andrew Sofronis Papanastasiou (DESY)

Slides papanastasiou.pdf

Fri, May 23

9:00 AM → 10:30 AM Single top II

9:00 AM t-channel modelling uncertainties and further questions to TH and new fiducial measurements

Speaker: Jose Enrique Garcia Navarro (Instituto de Fisica Corpuscular (ES))

Slides TOPLHCWG-JEG.pdf TOPLHCWG-JEG.pptx

9:30 AM Discussion on single top reference cross section

Speaker: Dominic Hirschbuehl (Bergische Universitaet Wuppertal (DE))

Slides talk.pdf

9:50 AM Theory proposal for reference single top cross section measurements

Speaker: Rikkert Frederix (CERN)

Slides frederix.pdf

10:30 AM → 11:00 AM coffe break

11:00 AM → 12:30 PM Top BSM

11:00 AM RunII priorities for topBSM physics

Speaker: Gilad Perez (CERN & Weizmann)

Slides Gilad_Perez_TopLHCWG_fin.pdf

11:45 AM Discussion: desiderata for the WG on topBSM matters

Speakers: James Ferrando (University of Glasgow), Justin Pilot (University of California Davis (US))

Slides TOPLHCWG_FINAL.pdf

12:30 PM → 1:00 PM Conclusion and outlook