TOP 2013 - 6th International Workshop on Top-Quark Physics

14 Sept 2013, 08:00 → 19 Sept 2013, 18:00 Europe/Berlin

<a href="http://vierjahreszeiten-durbach.de/hotel_kontakt.html">Hotel "Vierjahreszeiten"</a>

The TOP 2013 workshop was from 14-19 September 2013 in Durbach, Germany. It brought together 125 experimental and theoretical physicists working on top quark physics and related topics. The workshop provided a comprehensive overview of the latests results from the LHC and Tevatron experiments as well as the most recent theoretical developments and an outlook on top quark physics at a future linear collider. The programme consisted of plenary presentations, a poster session in particular for young researchers, and much room for discussions. The goal of the workshop was to foster communication on top quark physics on all levels, from analysis techniques to future strategies for the field.

The proceedings of TOP 2013 are published online as DESY-PROC-2014-02.

Proceedings proc.pdf

Sunday 15 September

Welcome/Keynote

Convener: Ulrich Husemann (Institut für Experimentelle Kernphysik - Karlsruhe Institute of Technology - KIT)

1 Welcome notes / Workshop organization (20')

Speaker: Ulrich Husemann (Institut für Experimentelle Kernphysik - Karlsruhe Institute of Technology - KIT)

Slides husemann_info_20130915.pdf husemann_welcome_20130915.pdf

2 Keynote address (30'+10')

Speaker: Andreas Weiler (DESY-T)

Slides weiler-top-9-2013.pdf

3 Top and Higgs (30'+10')

Speaker: Dr Michael Spira (Paul Scherrer Institut)

Slides spira.pdf

10:10 Coffee Break

Analysis Techniques

Convener: Alexander Grohsjean (DESY)

4 Leptons (e, mu, tau) + systematic uncertainties (20'+10')

Speakers: Javier Fernandez Menendez (Universidad de Oviedo), Timothée Theveneaux-Pelzer

Paper P3.pdf

Slides 1_fernandez.pdf

5 Jets, MET, Pileup + systematic uncertainties (30'+10')

Speaker: Michel Vetterli (Simon Fraser University)

Slides 2_jet-EtMiss-talk-v7.pdf

6 QCD background + systematic uncertainties (20'+10')

Speaker: Jin Wang (Chinese Academy of Sciences)

Slides QCD_Top2013_JinWang.pdf

7 V+jets background + systematic uncertainties (30'+10')

Speakers: Stefanie Adomeit, Yvonne Peters

Paper P6.pdf

Slides 4_VjetsBkgNew.pdf

13:00 Lunch Break

MC Generators and Systematics

Convener: judith katzy (desy)

8 Recent MC developments for top pair and single top production (40'+15')

Speaker: Rikkert Frederix (UCLouvain)

Slides 1_frederix.pdf

9 Signal modeling uncertainties in top pair production (40'+15')

Speaker: Thomas Peiffer (University of Hamburg)

Paper P8.pdf

Slides Durbach2013_Peiffer_v1.pdf

10 Recent MC developments for V+jets production (20'+10')

Speaker: Frank Siegert (Freiburg)

Slides 3_talk.pdf

17:00 Coffee Break

Inclusive top pair cross section

Convener: Prof. Peter Uwer (Humboldt-Universität zu Berlin)

11 Top pair production in NNLO at hadron colliders (20'+10')

Speaker: Michal Czakon

Slides 1_top2013-czakon.pdf

12 Inclusive top pair production at Tevatron and LHC in electron/muon final states (20'+10')

Speaker: Andreas Jung (Fermilab)

Paper P11.pdf

Slides 2_top2013_v2.pdf

13 Inclusive top pair production at Tevatron and LHC in tau/hadron final states (20'+10')

Speaker: Michele Gallinaro

Paper P12.pdf

Slides 3_gallinaro2.pdf

14 Cross section combination (20'+10')

Speaker: Serban Protopopescu (Brookhaven National Laboratory)

Paper P13.pdf

Slides 4_ttbXsec.pdf

Students' Q&A

Conveners: Andreas Meyer, Arnulf Quadt

Monday 16 September

QCD parameter extraction and single top cross section

Convener: Dr Wolfgang Wagner (Bergische Universität Wuppertal)

15 QCD parameter extraction: alpha_S and PDFs (20'+10')

Speaker: Mr Sebastian Naumann-Emme (DESY)

Paper P14.pdf

Slides 1_naumann-emme_2013-09-16.pdf

16 Single top theory status (20'+10')

Speaker: Francesco Tramontano (CERN)

Slides 2_FT_talk.pdf

17 Inclusive single top cross section at the LHC (20'+10')

Speaker: Rebeca Gonzalez Suarez (Univ. of Nebraska-Lincoln)

Paper P16.pdf

Slides 3_rebeca_TOP2013.pptx

18 Single top at the Tevatron (20'+10')

Speaker: Matteo Cremonesi

Slides 4_cremonesi_TOP2013.pdf

10:30 Coffee Break

Differential top pair cross sections

Convener: Dr Andreas Meyer (DESY)

19 Latest differential ttbar and ttbar+jets, ttbb, tttt cross sections (30'+10')

Speaker: Markus Schulze (Argonne National Laboratory)

Slides 1_Top2013.schulze2.pdf

20 Differential top pair cross section measurements (30'+10')

Speaker: Maria Aldaya Martin (University of Hamburg)

Slides 2_ttdiffxsec_aldaya_TOP2013.pdf

21 Measurements of additional jets in ttbar (30'+10')

Speaker: Lluisa-Maria Mir

Paper P20.pdf

Slides 3_ttjets.pdf

13:00 Lunch Break

Top properties

Convener: Dr Yvonne Peters (University of Goettingen and Desy)

22 Theory status of A_FB and A_C (20'+10')

Speaker: Susanne Westhoff (University of Pittsburgh)

Paper P21.pdf

Slides 1_top-asymmetry-westhoff.pdf

23 Experimental status of A_FB and A_C (20'+10')

Speaker: Viatcheslav Sharyy (CEA Saclay)

Paper P22.pdf

Slides Top2013_Sharyy.pdf

24 Measurements of top quark spin correlation, top quark polarization, and W helicity (20'+10')

Speaker: Dr Kevin Kroeninger (University of Goettingen)

Slides Top2013_KK.pdf

25 Measurements of ttbar+V production (20'+10')

Speaker: James Michael Keaveney (Vrije Universiteit Brussel)

Paper P24.pdf

Slides TOP2013_ttV_keaveney_shared_FINAL.pdf

16:30 Coffee Break

Poster session and reception

Convener: Alexander Grohsjean (DESY)

26 Unfolding in particle physics: a window on solving inverse problems

Speaker: Francesco Spano

Paper P52.pdf

Slides PosterSpanoTop2013.pdf

27 Search for FCNC top­-quark decays

Speaker: Bruno Galhardo

Paper P53.pdf

Slides galhardo_poster.pdf

28 Search for vector­-like top partners with the ATLAS experiment

Speaker: Juan Pedro Araque Espinosa

Paper P54.pdf

Slides araque_poster.pdf

29 Measurement of top quark polarization in dileptonic top­-antitop events using the ATLAS detector

Speaker: Ralph Schäfer

Paper P55.pdf

30 Measurement of top quark polarization in top-­antitop events using the ATLAS detector

Speaker: Samuel Hamilton

Paper P56.pdf

31 Jet Multiplicity Spectrum in ttbar events at ATLAS

Speaker: Spyros Argyropoulos

32 Measurement of the top mass in the dilepton channel with the ATLAS detector

Speaker: Andreas Alexander Maier

Paper P58.pdf

Slides AndreasMaier_Poster_Top2013.pdf

33 Measurement of the leptonic ttbar charge asymmetry in the dilepton channel with the D0 detector

Speaker: Antoine Chapelain

Paper P59.pdf

Slides poster_antoine_chapelain_spp.pdf

34 Measurement of the top polarization in the lepton+jets decay channel with the D0 detector

Speaker: Kamil Augsten

Paper P60.pdf

Slides Top_2013_Poster_LepJetCombined_FinalVersion.pdf

35 Model Based Clustering method as a new multivariate technique in High Energy Physics

Speaker: Vladislav Simak (FZU Prague)

Paper P61.pdf

36 Measurement of the charge asymmetry in top quark pair production at CMS

Speaker: Frank Roscher

Paper P62.pdf

Slides 11_roscher_poster_top2013.pdf

37 Measurement of top polarization in t-channel single-top production

Speaker: Steffen Röcker

Slides 12_roecker_poster_top2013.pdf

38 Measurement of jet multiplicity distributions in semi-leptonic top quark pair events

Speaker: Shawn Williamson

Paper P64.pdf

Slides 13_williamson_poster_top2013.pdf

39 Combination of single top-quark cross-section measurements in the t-channel of the ATLAS and CMS experiments at the LHC at 8 TeV center-of-mass proton-proton collisions

Speaker: Luca Lista

Paper P65.pdf

Slides 14_lucalista_singletop_txseccombination.pdf

40 Measurement of the jet multiplicity in dileptonic top quark pair events at 8 TeV

Speaker: Jan Kieseler

Paper P66.pdf

41 Measurement of the W polarization in ttbar production in lepton+jets events at 7 TeV

Speaker: Annik Olbrechts

Paper P67.pdf

Slides olbrechts_posteraddition_top2013.pdf olbrechts_poster_top2013.pdf

42 Measurement of the top-quark mass with all-jets final states

Speaker: Eike Schlieckau

Paper P68.pdf

Slides TOP-11-017-poster.pdf

43 Measurement of the top quark mass with alternative techniques in CMS

Speaker: Juerg Eugster

44 Observation of associated production of a single top quark and W boson at 8 TeV

Speaker: Duncan Leggat

Paper P70.pdf

45 HERAFitter - an open source QCD fit framework

Speaker: Stefano Camarda

Tuesday 17 September

Top quark mass

Convener: Dr Giorgio Cortiana (MPI fuer Physik, Muenchen)

46 Top quark mass and top/antitop mass difference at the Tevatron: recent results (20'+10')

Speaker: George Velev

Slides top-2013_velev-pdf.pdf

47 Top quark mass and top/antitop mass difference at LHC: recent results (20'+10')

Speaker: Ian Brock (University of Bonn)

Slides 2_Top2013_brock_mtop.pdf

48 Top mass world combination, uncertainties and their correlations (20'+10')

Speaker: Pedro Da Silva (CERN)

Slides 3_MassComb_top2013.pdf

10:00 Coffee Break

Alternative top quark mass measurements and mass interpretation

Convener: Dr Hartmut Stadie (Universität Hamburg)

49 Alternative methods for top mass determination - Part I (20'+10')

Speaker: Juan Fuster (Universidad de Valencia)

Slides 1_Top2013_Fuster.pdf

50 Alternative methods for top mass determination - Part II (20'+10')

Speaker: Frédéric Déliot

Paper P29.pdf

Slides 2_Top13_Deliot.pdf

51 Interpreting the top quark mass: theretical and MC aspects (30'+10')

Speaker: Michelangelo Mangano (CERN)

Slides TOP2013_mangano.pdf

12:45 Excursion

20:00 Conference Dinner

Wednesday 18 September

52 Additional Information

Speaker: Ulrich Husemann (Institut für Experimentelle Kernphysik - Karlsruhe Institute of Technology - KIT)

Slides husemann_info_20130918.pdf

Top properties and new physics

Convener: Dr Kevin Kroeninger (University of Goettingen)

53 New physics in top pair production (20'+10')

Speaker: Roman Lysak

Paper P32.pdf

Slides 1_Lysak_NPttbar.pdf

54 New physics in single top quark production (30'+10')

Speaker: Oliver Maria Kind

Paper P33.pdf

Slides 2_TOP2013.pdf

55 FCNC in top production and decay (20'+10')

Speaker: Efe Yazgan (Texas Tech. Univ.)

Paper P34.pdf

Slides yazgan_TOP2013.pdf

56 New physics including SUSY and alternative models in top properties (30'+10')

Speaker: Rohini Madhusudan Godbole (Indian Institute of Science)

Slides godbole_top2013-latex.pdf

10:50 Coffee Break

Boosted top quarks

Convener: Dr Lucia Masetti (Johannes Gutenberg Universitaet Mainz)

57 Heavy resonances and top production, overview of top tagging techniques (30'+10')

Speaker: Jose Ernesto Juknevich

Paper P35.pdf

Slides Overview_of_Top_Tagging_Techniques_-_Juknevich_-__Top2013.pdf

58 Performance of top tagging methods (20'+10')

Speaker: Mossadek Talby (Centre National de la Recherche Scientifique)

Slides 2_Top-tagging-performances_M-Talby.pdf

59 Search for resonances and high-pT top production (20'+10')

Speaker: Rebekka Hoing (University of Hamburg)

Slides 3_TOP2013_Hoeing.pdf

13:00 Lunch Break

Top quarks and supersymmetry

Convener: Dr Kevin Kroeninger (University of Goettingen)

60 Charged Higgs searches (20'+10')

Speaker: Andrei Nikiforov (DESY)

Slides 1_nikiforov.pdf

61 Stop searches (20'+10')

Speaker: Michael Spannowsky (University of Durham)

Slides 2_spannowsky_top2013.pdf

62 Stop and other searches (20'+10')

Speaker: Caroline Collard (IPHC, IN2P3-CNRS - ULP, UHA Mulhouse)

Paper P40.pdf

Slides 3_TOP2013_Collard.pdf

63 Indirect Limits on SUSY/virtual effects (20'+10')

Speaker: Prof. Ulrich Nierste (Karlsruhe Institute of Technology)

Slides nierste_top13.pdf

16:30 Coffee Break

Top and Higgs physics

Convener: Thomas Müller

64 Backgrounds of top pair associated Higgs production and MC tools (30'+10')

Speaker: Kevin Patrick Lannon (Univ. of Notre Dame)

Slides TOP2013_2013-09-18_ttHBackgrounds.pdf

65 Direct searches for top pair associated Higgs production (30'+10')

Speaker: Jahred Adelman (Yale University)

Slides top2013_ttH.pdf

66 Top-Higgs couplings (30'+10')

Speaker: Cedric Delaunay (CERN)

Slides 3_delaunay_top2013.pdf

Students' Q&A

Conveners: Dr Andreas Meyer (DESY), Prof. Arnulf Quadt (II. Physikalisches Institut, Georg-August-Universität Göttingen)

Thursday 19 September

Perspectives

Convener: Prof. Peter Uwer (Humboldt-Universität zu Berlin)

67 Perspectives for top at the LHC at 13-14 TeV (30'+10')

Speaker: Kerim Suruliz (University of Sheffield)

Slides 1_suruliz.pdf

68 From the LHC to a future linear collider (30'+10')

Speaker: Prof. Kirill Melnikov (Johns Hopkins University Baltimore)

Paper P46.pdf

Slides 2_melnikov_top2013.pdf

69 The top quark and the SM stability (30'+10')

Speaker: Prof. Mikhail Shaposhnikov (Institute of Theoretical Physics Lausanne)

Paper P47.pdf

Slides 3_top2013.pdf

10:30 Coffee Break

Workshop summary

Convener: Prof. Arnulf Quadt (II. Physikalisches Institut, Georg-August-Universität Göttingen)

70 Organizational and Top 2014 workshop (20')

71 Experimental summary (40'+10')

Speaker: Prof. Aurelio Juste (ICREA/IFAE)

Slides 2_Top2013_juste.pdf

72 Theoretical summary (40+10')

Speaker: Eric Laenen (Nikhef)

Paper P50.pdf

Slides Top2013Summary.pdf