Proton Structure in the LHC Era - School and Workshop

29 Sept 2014, 08:00 → 2 Oct 2014, 18:00 Europe/Berlin

SR 4a/b (DESY Hamburg)

The registration fee is 40 EUR.

Poster QCD_School.pdf

Monday, 29 September

Arrival and registration

Lectures

1 Enhancing discovery potential: QCD precision measurements at the LHC (A. Cooper-Sarkar, University of Oxford)

The presentation should describe the limitations for Higgs precision measurements and searches at the LHC, in particular which searches are limited by the imprecision of the PDF, alfa_s, quark masses and the missing higher order calculations (estimated by scale variations).

Speakers: Prof. A. Cooper-Sarkar (Oxford), Prof. Amanda Cooper-Sarkar (Oxford University)

Slides PDFSchool2014.pdf

2 Determinations of the strong coupling constant at the LHC, and the role of PDFs in there (G. Dissertori, ETH Zuerich)

The presentation should focus on the experimental methods of determination of alfa_s in particular on hadron colliders and address problems limiting its precision.

Slides DESY_Sep2014_GD_v3.pdf

11:30 Break

3 The tricky part of the factorization: Parton Distribution Functions (D. Soper, University of Oregon)

The presentation should include theoretical basics of the factorization, including the discussion of QCD coefficient functions and fixed order calculations and also explain PDF and PDF determination.

Slides DESYCTEQ14.pdf

13:00 Lunch break

Tutorials

4 Introduction to HERAFitter

Speaker: Mrs Ringaile Placakyte (DESY)

Slides tutorial_desy_pdf_school2014.pdf

16:00 Coffee Break

5 HERAFItter: PDF determination using DIS data

Speaker: Dr Hayk Pirumov (DESY)

Slides pirumov_PDFSchool2014.pdf

Tuesday, 30 September

Lectures

6 The precise part of the factorization: theory calculations at NLO and NNLO (M. Schulze, CERN )

Review of theory calculations for various QCD processes, which are relevant for PDF determination. Influence of the electroweak corrections. (NB: Jets will be treated in a dedicated lecture).

Slides higherorders.schulze.pdf

10:30 Coffee break

7 Jets in hadron collider at highest order (Z. Nagy, DESY)

Theory challenges in calculation of higher order (multi) jet production in hadronic collisions, influence of electroweak corrections.

Speaker: Dr Zoltan Nagy (DESY)

Slides Zoltan-Nagy.pdf

8 The number of flavors and the quark masses (S.-O. Moch, University of Hamburg)

Theory review of the quark mass concepts (running, pole) and the role of the flavor number treatment and transitions massive-> massless. Meaning of the quark mass in different approaches.

Speaker: Sven-Olaf Moch (UHH)

Slides pdfschool-2014.pdf

13:00 Lunch break

Tutorials

9 Reweighting as an alternative to fitting

Speakers: Dr Alberto Guffanti (University of Freiburg), Dr Kristin Lohwasser (Universität Freiburg)

Slides DESY-PDFschool-2014.pdf HeraFitter_Reweighting_Tutorial.pdf

15:30 coffee break

10 Fast grids techniques. FastNLO

Speakers: Daniel Britzger (DESY), Klaus Rabbertz (KIT)

Shell text tut.sh

Slides 140930_fastNLO-Tutorial_Introduction.pdf fastnlo_evaluation.pdf

11 Top-pair production in the fits: Difftop

Speaker: Dr Marco Guzzi (DESY)

Slides DifftopTutorial.pdf

19:30 Event Dinner

Dinner at Lamberts (for details see the "Dinner" menue item on the left)

Wednesday, 1 October

Tutorials

12 Fast grid techniques: APPLGrid

Speakers: Dr Mark Sutton (University of Sussex), Pavel Starovoitov (DESY)

Slides pdfworkshop-2014.pdf talkPDFschool2014.pdf

11:00 break

Tutorials

13 HERAFitter: PDF determination using LHC data

Speakers: Dr Voica Radescu (DESY), Dr Voica Radescu (DESY)

Slides school_tutorial.pdf

13:00 Lunch break

Tutorials: Discussions along the results of the PDF school

14 Discussions along the HERAFitter Results at the school

14:45 break

HERAFitter Users' meeting: https://indico.cern.ch/event/342871/

15 HERAFitter Users' Meeting

https://indico.cern.ch/event/342871/

Thursday, 2 October

Discussion of common issues: Vidyo access: http://vidyoportal.cern.ch/flex.html?roomdirect.html&key=QpFaaSZLsTe1

16 Theoretical uncertainties in PDF analysis: scale variations: chair S. Moch

Speaker: Sven-Olaf Moch (UHH)

Slides SvenMoch_thunc.pdf

17 Treatment of errors in PDF fits. Chair S. Camarda

- experimental systematic errors - how to estimate correlations between different data sets - what to do if different experimental data sets conflict

Speaker: Stefano Camarda (DESY)

Slides CamardaUncertainties.pdf

18 Which number of flavours to use for which data? Flavour separation and Strange PDF. Chair F. Olness

Speaker: Prof. Fred Olness (SMU)

Slides Discussion_HQ.pdf

19 Review of the benchmarking exercise and METAPDF: chair P. Nadolsky

Speaker: Pavel Nadolsky (Southern Methodist University)

Slides 140929.benchmark.pdf

20 Ongoing developments towards new prescription by PDF4LHC group: chair A. Cooper-Sarkar

Speaker: Prof. A. Cooper-Sarkar (Oxford)

21 Transverse Momentum Distributions for LHC: chair H. Jung

Speaker: Hannes Jung (DESY)

Slides TMDintro.pdf

22 AOB: all

13:00 Lunch break

23 PROSA network meeting (internal)

For PROSA members, please find the agenda on the PROSA wiki page: https://prosa.desy.de