MC4LHC readiness

29 Mar 2010, 08:00 → 1 Apr 2010, 18:00 Europe/Zurich

Monday-Wednesday: Salle Bohr, 40-S-B01 Thursday: TH Auditorium (CERN)

Michelangelo Mangano (CERN)

Review the readiness of MC tools for the LHC, including: - MC event generators - (N)NLO codes - decay packages - jet algorithms - UE/MB modeling - fitting/tuning strategies - comparisons with tevatron data - PDF The idea is to have a technical review of where we stand with our codes. This will cover both readiness in the sense of status of the codes (available processes, ongoing r&d on new ideas and times of delivery, current limitations to use, timescales to deliver missing parts, etc) as well as in the sense of suitability to describe the data (comparison with current data -- tevatron,hera -- tuning/fitting progress, etc). Info on the EVO connection: Title: MC4LHC Readiness Workshop Description: mc4lhc readiness workshop Community: Universe Password: mc4lhc Meeting Access Information: - Meeting URL http://evo.caltech.edu/evoGate/koala.jnlp?meeting=eBele2vBvvalaeaMIB - Password: mc4lhc - Phone Bridge ID: 55420 Password: 8830

Input/Requests from CMS Proposal for discussion items from CMS

Monday, 29 March

Shower MC

1 PYTHIA 6

Speaker: Peter Skands (CERN)

Slides Skands-MC4LHC.pdf

2 PYTHIA 8

Speaker: Torbjorn Sjostrand (Department of Theoretical Physics)

Slides pythia8.pdf

3 HERWIG

Speaker: Dr Peter Richardson (Durham University)

Slides CERN-readiness.pdf CERN-readiness.ppt

11:00 coffee break

4 Sherpa

Speaker: frank krauss (Durham University)

Slides CERN10_Sherpa.pdf

5 Ariadne

Speaker: Leif Lonnblad (Lund University)

Slides CERN10b.pdf

12:45 Lunch break

Modeling MB/UE and diffraction

6 CASCADE and small-x final states

Speaker: Hannes Jung (DESY)

Slides cascade.pdf

7 Study of PYTHIA tunings with CDF jet-shape data

Speaker: Angela Barbaro Galtieri (Physics Division-Lawrence Berkeley National Lab. (LBNL)-Unknown)

Slides mclhc10.pdf

8 LHCf: sensitivity to modeling of diffraction

Speaker: Menjo Hiroaki

Slides lhcf_MC4LHC_100327.ppt

9 Theoretical analysis of data on soft diffraction

Speaker: Martin Poghosyan (Universita & INFN, Torino)

Slides CERN_MB_29Mar2010mp.pdf

15:20 coffee break

10 Diffraction model in HERWIG++

Speaker: Pavel Ruzicka

Slides ForwardPhysisc.pdf

11 MB/UE and diffraction modeling in Sherpa

Speaker: frank krauss (Durham University)

Slides CERN10_MB.pdf

12 Diffraction modeling in EPOS

Speaker: Tanguy Pierog

Slides pierog_EPOS_diff.pdf

13 Proposal for operational definition of diffraction

Speaker: Peter Skands (CERN)

Slides Skands-MC4LHC-Diffraction.pdf

Tuesday, 30 March

Matrix Element + shower tools

14 ALPGEN

Speaker: Michelangelo Mangano (CERN)

Slides Alpgen.pdf

15 MadGraph/MadEvent

Speaker: Michel Herquet

Slides herquet.pdf

16 The Binoth-Les Houches NLO accord

Speaker: Frederix Rikkert

Slides frederix.pdf

10:40 coffee break

17 MC@NLO

http://www.hep.phy.cam.ac.uk/theory/webber/MCatNLO

Speaker: Stefano Frixione (CERN and EPFL)

Slides nlomc.pdf

18 POWHEG

Speaker: Dr Carlo Oleari (Universita' di Milano-Bicocca)

Slides oleari.pdf

19 POWHEG

Speaker: Keith Hamilton

Slides hamilton_MC4LHC.pdf

(N)NLO tools

20 MCFM

MC for Femtobarn processes, http://mcfm.fnal.gov/

Speaker: Francesco Tramontano

Slides mcfm.pdf

21 Black Hat

Speaker: Darren Forde

Slides MC_workshop_CERN_March_2010.pdf

22 HELAC

Monte Carlo Event Generator for All Parton Level Processes, http://helac-phegas.web.cern.ch/helac-phegas/

Speaker: Costas Papadopoulos (Institute of Nuclear Physics)

Slides mc4lhc2010.pdf

15:15 coffee break

23 DYNNLO

A parton-level MC for DY at NNLO

Speaker: Giancarlo Ferrera

Slides dynnlo.pdf

24 First results and plans for NLO in Sherpa

Speaker: Stefan Hoeche (University of Zurich)

Slides stefan_cern_10-03.pdf

25 The GOLEM project

Speaker: Thomas Reiter

Slides 100330-reiter-thomas.pdf

Wednesday, 31 March

Other tools, part 1

26 PDF tools: report from PDF4LHC

Speakers: Albert De Roeck (CERN), Alexandre Glazov (Deutsches Elektronen-Synchrotron (DESY))

Slides pdf4lhc_sum.pdf

27 LHAPDF: status report

Speaker: Mike Whalley

Slides LHAPDF2.pdf

28 BSM tools: report from MC4BSM

Speaker: Peter Skands (CERN)

Slides Skands-MC4LHC-MC4BSM.pdf

29 Jet clustering tools

Speaker: Gavin Salam

Slides CERN-FastJet.pdf

11:00 coffee break

30 Decay packages: EVTGEN

Speaker: Anders Ryd

Slides 100331_EvtGen.pdf

31 EVTGEN: status and plans in LHCb

Speaker: Prof. Paul Harrison (University of Warwick)

Slides harrison.pdf

32 Decay packages: tauola

Speaker: Zbigniew Was (High Energy Department - Henryk Niewodniczanski Inst. Nucl. Phys)

Poster tester-evtgen-tauola.pdf

Slides wasTH.pdf wasTH.ps

13:00 Lunch break

Other tools, part 2

33 Validation/tuning tools: Rivet & Professor

Speaker: Dr Andy Buckley (University of Edinburgh)

Slides Rivet and Professor summary slides

34 Validation/tuning tools: Profit

Speaker: Albert Knutsson (Deutsches Elektronen-Synchrotron (DESY))

Slides knutsson_proffit_mc4lhccern100330.pdf

35 MC tuning with genetic algorithms

Speaker: Sami Kama (DESY)

Slides MC4LHCReadiness.pdf

36 Status and plans of the Generator services project (Genser)

Speaker: Witold Pokorski (CERN)

Slides genserMC4LHC.pdf genserMC4LHC.pptx

Thursday, 1 April

V+jets, part 1

08:30 Coffee

TH common room

37 CDF studies of V+jets

Speaker: Dr Mario Martinez-Perez (IFAE-Barcelona)

Slides CDF_studies_vjets.pdf

38 D0 studies of V+jets

Speaker: Prof. Sabine Lammers (Indiana University)

Slides MC4LHC_WZjets.pdf

11:00 coffee break

39 UE systematics in V+jets MC predictions, Tevatron comparisons and LHC extrapolation

We compare the impact of different Pythia tunings, and of Herwig+Jimmy, on the ALPGEN+shower+matching description of V+jets data

Speakers: Andrea Messina (CERN), Ben Cooper (Queen Mary University of London)

Slides AlpgenStudies.pdf

40 ATLAS: plans for V+jets studies

Speaker: Thorsten Kuhl (Bergische Universitaet Wuppertal)

Slides 20100401MC4LHC.pdf

41 Review of preparations for V+jets in CMS

Speakers: Piergiulio Lenzi (Dipartimento di Fisica), Vitaliano Ciulli (Istituto Nazionale di Fisica Nucleare (INFN))

Slides lenzi_01042010.pdf

13:30 Lunch break

V+jets, part 2

42 Sherpa validationa and tuning on Tevatron data

Speaker: Steffen Schumann

Slides Vjets_Sherpa.pdf

43 Blackhat studies of V+jets

Speaker: David Kosower

Slides V+Jets_at_Next-to-Leading_Order_With_BlackHat_(MC4LHC,_April_1,_2010).pdf V+Jets_at_Next-to-Leading_Order_With_BlackHat_(MC4LHC,_April_1,_2010).pptx

44 W+3jets at NLO at the LHC

Speaker: Giulia Zanderighi (University of Oxford)

Slides CernTools10.pdf

45 Radiation-pattern observables in W+multijets

Speaker: Jeppe Andersen (Unknown)

Slides HWZMultiJets.pdf

46 Plans of the CDF/D0 WG on V+jets

Speaker: Prof. Sabine Lammers (Indiana University)

Slides VJetsWG_March31.pdf

47 Discussion

Joint CDF/D0/TH V+jets WG, plans for forthcoming Tevatron analyses; systematic comparisons of NLO and ME+shower approaches and benchmark predictions for the LHC; observables for the validation and tuning of the MCs; etc.etc.etc.