QCD at the LHC

22 Aug 2011, 08:00 → 26 Aug 2011, 18:00 Europe/London

St Andrews, Scotland

Frank Krauss (IPPP), Johannes Bluemlein (DESY), Michelangelo Mangano (CERN), Nigel Glover (IPPP)

This workshop aims at instigating discussions and future work between experimenters and theorists, working on strong interactions at the LHC. Topics to be discussed include Latest results from the LHC on Soft and Hard QCD Theory of Jets Parton Density Functions Higher Order Calculations Event Simulations Resummation Top Physics Higgs Physics QCD for BSM studies The workshop will take place in St. Andrews, Scotland starting with registration in the afternoon and reception in the evening of Sunday the 21st August. The scientific part of the meeting will start at 9am on Monday morning the 22nd August through to Friday lunchtime on the 26th August. Departure is in the afternoon of Friday the 26th August. Please register at the workshop website It is a follow-up meeting to the one in 2010 in Trento (webpage).

Monday, 22 August

Plenary Talks I

1 Soft QCD results from Atlas

Slides QCDStAndrewsNurse.pdf

2 Soft QCD results from CMS

Slides CMSSoftQCD.pdf

10:45 Coffee Break

3 Hard QCD results from Atlas

Slides Spreitzer_HardQCDAtlas.pdf

4 Hard QCD results from CMS

Slides lenzip_standrews11_final.pdf

Common Soft/Hard QCD Session I

5 Parton Showers and Multiple Parton Interactions

Speaker: Zoltan Nagy

Slides znagy.pdf

6 Discussion

7 The universality of Monte Carlo tunes

Speaker: Rick Field

Slides QCD@LHC2011_RickField_8-22-11.pdf

8 Discussion

9 Double Parton Scattering Theory

Speaker: Jonathan Gaunt

Slides QCDLHC2011_Gaunt.pdf

16:05 Coffee/Tea break

10 Soft physics corrections to Jets

Speaker: Mrinal Dasgupta

Slides dasgupta_softqcd2.pdf

11 Discussion

12 Color flow in hard scattering processes

Speaker: Simone Marzani

Slides marzaniQCD@LHC2011.pdf

13 Discussion

PDF Session I

Conveners: Aleksander Glasov (DESY), Sergey Alekhin (Protvino), Tara Shears (Liverpool)

14 W/Z + jet production at CMS

Speaker: Michael Cutajar (Imperial College London)

Slides mcutajar220811.pdf

15 W/Z + jet production at ATLAS

Speaker: Erik Devetak (Stony Brook)

Slides qcdlhc3.pdf

16 W/Z production at LHCb

Speaker: Simone Bifani (University College Dublin)

Slides bifani.pdf.pdf

17 W/Z + jet production at Tevatron

Speaker: Stefano Camrada (IFAE Barcelona)

Slides v+jets_at_Tevatron.pdf

16:10 Cofee Break

18 NNPDF update

Speaker: Luigi Del Debbio (Edinburgh)

Slides StAndrews2011.pdf

19 HERAPDF update

Speaker: Voica Radescu (Heidelberg Physikalisches Institut)

Slides qcdatlhc2011.pdf

20 CTEQ PDFs update

Speaker: Joey Huston (Michigan State University)

Slides huston_cteq_update.pdf

18:10 Dinner Break

21 Discussion

Whisky Tasting and Talk

Tuesday, 23 August

Plenary Talks II

22 PDFs

Speaker: Robert Thorne (UCL)

Slides QCD11sum.pdf

23 Theory of Jets

Speaker: Mrinal Dasgupta (Manchester)

Slides jettheory.pdf

10:45 Coffee Break

24 Higher Order Calculations

Speaker: Zoltan Kunszt (ETH Zurich)

Slides TalkStAndrew.pdf

25 Monte Carlo

Speaker: Stefan Hoeche (SLAC)

Slides stefan_standrews_11-08.pdf

PDF Session II

EVO is available, Universe community, "QCD@LHC PDF WG", password "pdf"

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Phone Bridge ID: 389 7678 Password: 2678

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BST start 14:00, end 21:00
Eastern daylight time start 09:00, end 16:00

Conveners: Aleksander Glasov (DESY), Sergey Alekhin (Protvino), Tara Shears (Liverpool)

26 MSTW PDFs update

Speaker: Robert Thorne (University College London)

Slides QCD11MSTW.pdf

27 Review of recent HERA data

Speaker: Matthew Wing (UCL)

Slides Wing-PDF-HeavyQuarks.pdf

28 Overview of the FFNS and VFNS in DIS

Speaker: Pedro Jimenes-Delgado (ITP Zurich)

Slides StAndrews.pdf

29 NNLO corrections to the heavy-quark electroproduction

Speaker: Johannes Bluemlein (DESY)

Slides blumlein.pdf

15:55 Coffee Break

30 VFNS in the MSTW fit

Speaker: Robert Thorne (UCL)

Slides thorne_2.pdf

31 Running-mass definition in the heavy-quark electroproduction

Speaker: Sergey Alekhin (Protvino)

Slides alekhin_rm.pdf

32 ACOT in the NNLO

Speaker: Pavel Nadolsky (SMU)

Slides b822.pdf

17:55 Dinner Break

33 Discussion

Hard QCD Session II

34 Status of NNLO calculations

Speaker: Dr Nigel Glover (IPPP, Durham University)

Slides glover-standrews.pdf

35 Discussion

36 Recent progress in matching shower MC's and ME's

Speaker: Marek Schoenherr

Slides Marek_Schoenherr_StAndrews.pdf

37 Discussion

16:00 Coffee/Tea break

38 Boosted jet physics

Speaker: Peter Loch

Slides JetSubstructure.pdf

39 Discussion

40 W+multi-jets

Speaker: Joey Huston

Slides huston_blackhat_study.pdf

41 Discussion

18:00 Dinner

Soft QCD Session II

42 Soft QCD and Correlations results from ALICE

Speaker: Klaus Reygers

Slides reygers_qcd_at_lhc_2011.pdf

43 Correlations at the LHC

Speaker: Craig Buttar

Slides Correlations_at_the_LHC.pptx

44 Minireview on models for diffractive excitations and the Lund cascade model DIPSY

Speaker: Gosta Gustafson

Slides QCDLHCGustafson.pdf

16:15 Coffee/Tea break

45 Forward and Diffractive reslts from CMS and ATLAS

Speaker: Benoit Roland

Slides QCDLHC2011.roland.v3.pdf

46 Discussion on Future of Soft QCD/Correlations

Wednesday, 24 August

Plenary Talks III

47 Resummation

Speaker: Lorenzo Magnea (Torino)

Slides magnea.pdf

48 Top Physics

Speaker: Peter Uwer (HU Berlin)

Slides uwer.pdf

10:45 Coffee Break

49 Higgs Physics

Speaker: Giampiero Passarino (INFN Torino)

Slides passarino.pdf

50 QCD 4 BSM

Speaker: Michael Spannowsky (Oregon)

Slides spannowsky_StAndrews.pdf

Excursion

Thursday, 25 August

Common PDF/Hard QCD session III

51 Use of PDF's in MC generators

Speaker: Zoltan Nagy

Slides znagy-pdf.pdf

52 Discussion

53 Uncertainties in prompt photon predictions

Speaker: Ciaran Williams

Slides PhotonsStAndrews.pdf

54 Discussion

10:45 Coffee break

55 Impact of jet data on PDF's and standard candles

Speaker: Sergey Alekhin

Slides lhc2.pdf

56 PDF dependence on the Higgs cross section

Speaker: Robert Thorne

Slides QCD11jets.pdf

57 Discussion

58 Re-weighting PDF's using experimental data

Speaker: Richard Ball

Slides

• Ball.pdf
• Ball.pdf
• Ball.pdf

59 Discussion

Soft QCD Session III

60 Soft QCD results from LHCb

Speaker: Andrea Contu (University of Oxford)

Slides AContu_QCD@LHC2011.pdf

61 ATLAS MC Tuning effort

Speaker: A. Buckley

Paper buckley-tuning.pdf

62 CMS MC Tunning effort

Speaker: Prof. Rick Field (University of Florida)

Slides QCD@LHC2011_RickField_8-25-11.ppt

63 PYTHIA MC Status

Speaker: Richard Corke

Slides QCDatLHC.Corke.pdf

16:00 Coffee/Tea break

64 HERWIG MC Status

Speaker: Christian Roehr

Slides StAndrewsRoehr.pdf

65 Discussion on MC and Tuning

Hard QCD session IV

66 Tensor reductions of Feynman integrals

Speaker: Tord Riemann

Slides riemann.pdf

67 Discussion

68 Numerical evaluation of loop corrections

Speaker: Christian Reuschle

Slides TalkStAndrewsCRTune20110825Breaks.pdf

69 Discussion

70 Comments on CKKW-L and truncated showers

Speaker: Stefan Prestel (Lund)

Slides comment_prestel.pdf

71 Coffee break

72 Soft-gluon resummation in t-tbar production at hadron colliders

Speaker: Ben Pecjak

Slides StAndrews.pdf

73 Resummation effects in hard QCD events

Speaker: Thomas Becher

Slides becher_resummation_jpg.pdf becher_resummation.pdf

74 Discussion

75 Next 5 years of QCD measurements at the LHC (discussion)

18:00 Dinner

PDF Session IV

EVO is available for the second half of the meeting, Universe community, "QCD@LHC PDF WG"

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Phone Bridge ID: 389 7690

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BST start 16:00, end 21:00
Eastern daylight time start 11:00, end 16:00

76 Overview of Alpha_s measurement

Speaker: Johannes Bluemlein (DESY)

Slides ALPH1.pdf

77 Determination of \alpha_s from event shapes

Speaker: Thomas Becher (Bern)

Slides becher_eventshape_jpg.pdf

78 Value of Alpha_s from the HERA data

Speaker: Voica Radescu (Heidelberg Physikalisches Institut)

Slides qcdatlhc2011.alphas.pdf

16:00 break

79 Value of Alpha_s from the NNPDF fit

Speaker: Richard Ball (Edinburgh)

Slides Ball_afternoon.pdf

80 Benchmarking of fitting codes

Speaker: Joey Huston (MSU)

Slides huston_pdf_benchmarking.pdf

81 Benchmarking of the PDFs and Alpha_s correlation

Speaker: Joey Huston (MSU)

Slides pavel_benchmarking.pdf

18:00 break

82 Discussion on the NLO/NNLO PDFs bechmarking

Friday, 26 August

Summary Talks and Discussion

83 Summary of "Hard QCD"

Speaker: Michael Begel (Brookhaven National Laboratory)

Slides begel.pdf

84 Summary of "Soft QCD"

Slides

• SoftQCDSummaryExp.pdf
• summary_softQCD_part2.pdf
• summary_softQCD_part2.pptx

85 Summary of "PDFs"

Slides pdfsum.pdf

10:30 break

86 Concluding remarks

Speaker: Keith Ellis (Fermilab)

Slides Ellis_STA.pdf