ATLAS Standard Model Workshop 2018 - London 5-7 September

5 Sept 2018, 08:00 → 7 Sept 2018, 14:00 Europe/London

Peoples Palace (London)

Bogdan Malaescu (Centre National de la Recherche Scientifique (FR)), Eram Rizvi (Queen Mary, University of London), Matthias Schott (Johannes-Gutenberg-Universitaet Mainz (DE)), Ulla Blumenschein (University of London (GB))

The workshop program will be devoted to review our first 13 TeV measurements and prepare ourselves for our full Run 2 high precision legacy papers. We also want to exploit synergies with other ATLAS physics groups as much as possible and encourage common analysis strategies where it is beneficial to maximize the scientific output. A particular focus will be placed on constrains of effective field theories, our interplay with the Higgs- and Top-Working groups as well as reinterpretations of SM measurements in BSM scenarios.

The Wednesday sessions will be dedicated to ATLAS internal  presentations and discussions. Two morning sessions, on Thursday and Friday, will be dedicated to discussions between experiment and theory.

On Thursday afternoon we will visit a Shakespeare play, followed by the workshop dinner.

Mind that this page is public and will hence not contain sensitive ATLAS-internal material.  For the time table of the ATLAS-internal sessions, please see the internal WS page.

 

 

Accommodation: checkin etc

ATLAS SM Workshop – Excursion Details.pdf

Dinner location

First WS Bulletin, lots of useful information

Location for Theory panel on Sept 7th

London tube map

Mile-End campus map

more Info

Wednesday 5 September

1 Registration

2 Welcome to London

SMWorkshop2018_Intro.pdf

SMWSIntro.pdf

Experimental Session 1: SoftQCD and Diffractive Physics

Conveners: Rafał Staszewski (IFJ PAN Cracow (PL)), Sarka Todorova (Centre National de la Recherche Scientifique (FR))

3 Diffraction studies with ALFA/AFP proton tag (15+5)

Speaker: Mr James Kendrick (University of Birmingham (GB))

4 Electroweak studies with AFP tagging (15+5)

Speaker: Rafał Staszewski (IFJ PAN Cracow (PL))

5 MinBias and Underlying Event studies (15+5)

Speaker: Deepak Kar (University of the Witwatersrand (ZA))

10:45 Tea break

Experimental Session 2: Jets and Photons

Conveners: Ben Nachman (University of California Berkeley (US)), Javier Llorente Merino (Chinese Academy of Sciences (CN))

6 Jets and Jet-substructure Measurements (25+5)

Speaker: Jennifer Kathryn Roloff (Harvard University (US))

7 Testing pQCD with photons

Speaker: Ana Rosario Cueto Gomez (Universidad Autonoma de Madrid (ES))

12:00 Lunch Break

Experimental Session 3: W,Z Physics

Conveners: Fabrice Balli (Université Paris-Saclay (FR)), Valentina Cairo (The State University of New York SUNY (US))

8 What is published since the last SM workshop

Speaker: Evelin Meoni (Universita della Calabria e INFN (IT))

9 Progress report on the low-mu data-set

Speaker: Ludovica Aperio Bella (CERN)

10 Ongoing projects in the W,Z group

Speaker: Aaron James Armbruster (CERN)

Experimental Session 4: Electroweak Physics

Conveners: Bing Li (University of Michigan (US)), Lailin Xu (Brookhaven National Laboratory (US))

11 Standard Model quadratic gauge couplings in action (VBS and tribosons)

Speaker: Rustem Ospanov (University of Science and Technology of China)

12 Ongoing EWK analyses

Speaker: Dimitrii Krasnopevtsev (University of Science and Technology of China (CN))

13 First run 2 papers lessons and full run 2 projections

Speaker: Iro Koletsou (Centre National de la Recherche Scientifique (FR))

15:00 Tea break

News and Plans for PDFs within ATLAS: PDF Session:

Conveners: Amanda Sarkar (University of Oxford (GB)), Mark Sutton

14 ATLAS PDF forum, past, present future

Speaker: Amanda Sarkar (University of Oxford (GB))

SM_Sep5th2018_PDFforum.pdf

SM_Sep5th2018_PDFforum.pptx

15 PDF review

Speakers: Lucian Harland-Lang (Durham University), Dr Lucian Harland-Lang (University of Oxford)

atlas_PDF.pdf

SM and BSM: Interplay between BSM Searches and SM Measurements

Conveners: Joany Manjarres (Technische Universitaet Dresden (DE)), Vasiliki Kouskoura (Brookhaven National Laboratory (US))

16 Converting BSM searches to SM measurements

Speakers: Viviana Cavaliere (Brookhaven National Lab), viviana cavaliere

17 Re-interpreting SM results to BSM searches

Speaker: Christian Gutschow (University College London (UK))

17:30 Tea break

18 Public Talks: Overview of Public Standard Model Measurements

Speaker: Elena Yatsenko (Shanghai Jiao Tong University (CN) & Tsung-Dao Lee Institute (CN))

SMPublic_ElenaYatsenko_London2018.pdf

19:00 Reception

Thursday 6 September

News from Theory

Conveners: Matthias Schott (Johannes-Gutenberg-Universitaet Mainz (DE)), Simone Amoroso (Deutsches Elektronen-Synchrotron (DE))

19 Latest theory news and prospects on Jet-Substructure (30+10)

Speaker: Mrinal Dasgupta (University of Manchester (GB))

dasgupta-atlas-sm.pdf

20 BSM physics and reinterpretation of measurements (30+10)

Speaker: Riccardo Torre (CERN)

2018-09-06_London.pdf

10:05 Tea Break

21 Correlations between different color-singlet processes (30+10)

Speaker: Frank Tackmann (Deutsches Elektronen-Synchrotron (DE))

22 Latest developments on Monte Carlo Generators (30'+10')

Speaker: Keith Hamilton (University College London (GB))

Hamilton-ATLAS-06-Sep-2018.pdf

23 EFT in the context of SM measurements (30'+10')

Speaker: Tevong You (University of Cambridge)

2018_09 - London - ATLAS SM Workshop - The SMEFT Framework.pdf

13:00 Excursion - Shakespeare

17:25 Coffee break

Theory Panel

What is the best channel or method to search for the Odderon?

In PDF fitting we have been finding that fixed-order predictions are not always adequate. For example, to describe high-precision data which is not fully inclusive in that there are always necessary pt cuts. To what extent will resummed calculations be able to address this -and will they be available to fast grid techniques?

The new results of WW MiNLO NNLOPS imply that there are in certain regions of phase space real issues with the scale choices of the MiNLO approach which result in large reweighting factors (eg for Delta_yWW for large values of this observable). Is it true that if a scale choice is inappropriate, then NNLOPS reweighting may technically work but is by no means guaranteed to provide a result formally accurate to the claimed accuracy, even from a perturbative point of view, let alone for NNLO+PS. 

Is it really possible to formally claim NNLO+PS accuracy for LHE events before showering? Would such a statement be valid for all observables over the whole phase space of the measurements? 

Should we try to separate processes which lead to the same final state? As example: In WW production we only treat the EWK vertex as signal, while also the ttbar-process contributes (which is currently treated as background). This questions gets even more relevant when going to final states which can be produced either with pure EWK vertices (WWZ, ...) or via Higgs.

Are you aware of relevant use cases where EFT parameters relevant for signal also impact significantly the background of a different process under study?

What useful measurements beyond jet shapes could help understanding substructure and reducing its modeling uncertainties?

Are there any corners of phase space of DY production that you would like to see measured (and have not been done so far) at the LHC?

19:30 Workshop Dinner

Friday 7 September

Run-II Legacy Measurements: Opportunities for Run-2 papers

Convener: Andrew Pilkington (University Of Manchester)

24 Electroweak Physics and Rare Processes (15+5)

Speaker: Cong Geng (University of Michigan (US))

25 Important W/Z measurements (15+5)

Speaker: Jan Kretzschmar (University of Liverpool (GB))

26 Opportunities in Diffractive and SoftQCD Physics (15+5)

Speaker: Sarka Todorova (Centre National de la Recherche Scientifique (FR))

27 Plans for Jet/Photon Measurements (15+5)

Speaker: Heberth Jesus Torres Davila (Technische Universitaet Dresden (DE))

11:00 Tea Break

LPCC Efforts: Reports

Convener: Ulla Blumenschein (University of London (GB))

28 Comparisons/combinations of experiments, correlations of uncertainties

29 BSM interpretations of SM measurements: Common fiducial regions & tools, common approaches

30 Progress on theory predictions: benchmarking, new aproaches, common MC references

31 How to improve the ATLAS Standard Model Working Group

Speaker: Matthias Schott (Johannes-Gutenberg-Universitaet Mainz (DE))

32 Workshop Closure

Speaker: Bogdan Malaescu (Centre National de la Recherche Scientifique (FR))