TOP LHC WG meeting

21 May 2014, 09:00 → 23 May 2014, 18:00 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

Wednesday 21 May

09:00 → 10:30 Top mass: introduction session

09:00 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

09:20 Report on the first top mass World Average

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

Slides 2014_05_21_WorldAvg_TopLHCWG_BRANDT.pdf

09:55 New results on m_top, MSbar mass and differential cross sections

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

Slides MDowlingTopWG.pdf

10:30 → 11:00 Coffe break

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

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

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

Slides toplhcwg_may2014.pdf

11:30 Hadronisation and radiation systematics and b-fragmentation

Speaker: Tancredi Carli (CERN)

Slides TopLHCRadHad.pdf

12:00 Hadronization systematics on the top mass

Speaker: Gennaro Corcella (INFN - LNF)

Slides thad.pdf

12:30 → 14:00 Lunch

14:00 → 15:00 Top mass: new developments I

14:00 Interpretation of top quark mass measurements

Speaker: Andre Hoang (U)

Slides Top-Mass-Theory.pdf

15:00 → 15:30 coffe break

15:30 → 18:20 Top mass: new developments II

15:30 Non standard measurements of the top mass

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

Slides naumann-emme_toplhcwg_may2014.pdf

16:15 ME technique at NLO to extract mtop from dilepton events

Speaker: Pierre Artoisenet (Univerite catholique de Louvain)

Slides Artoisenet-1.pdf

16:45 New method for precise determination of top quark mass at LHC

Speaker: sayaka kawabata

Slides 140521TopWG_CERN_v2.pdf

17:15 Top mass extraction from dilepton events

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

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

17:45 Studies on the top mass

Speaker: Paolo Nason (Unknown)

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

Thursday 22 May

09:00 → 10:50 Top mass: systematic errors II

09:00 NLO QCD to WWbb

Speaker: Jan Winter (Dresden University)

Slides mlb.pdf

09:30 Top mass from the bottom energy peak

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

Slides short_energy_peak_low.pdf

09:45 Discussion session: top mass TH systematics

Speaker: Michelangelo Mangano (CERN)

Slides mangano.pdf

10:30 → 11:00 coffe break

11:00 → 12:30 Top pair modelling

11:00 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 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 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 → 14:00 Lunch

14:00 → 15:00 Top pair cross section and b-tagging

14:00 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

14:30 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

15:00 → 15:30 Single top I

15:00 tW combinations and plan for t-channel and Vtb

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

Slides TOPLHCWG_SingleTop_Combinations.pdf

15:30 → 16:00 coffe break

16:00 → 17:30 Single top I

16:00 t-channel NNLO cross section

Speaker: Fabrizio Caola (Johns Hopkins University)

Slides twgNNLO.pdf

16:30 Single-top with complex-mass scheme matched to showers

Speaker: Andrew Sofronis Papanastasiou (DESY)

Slides papanastasiou.pdf

Friday 23 May

09:00 → 10:30 Single top II

09:00 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

09:30 Discussion on single top reference cross section

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

Slides talk.pdf

09:50 Theory proposal for reference single top cross section measurements

Speaker: Rikkert Frederix (CERN)

Slides frederix.pdf

10:30 → 11:00 coffe break

11:00 → 12:30 Top BSM

11:00 RunII priorities for topBSM physics

Speaker: Gilad Perez (CERN & Weizmann)

Slides Gilad_Perez_TopLHCWG_fin.pdf

11:45 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 → 13:00 Conclusion and outlook