Taming the accuracy of event generators

29 Jun 2020, 08:30 → 3 Jul 2020, 18:00 Europe/Zurich

Zoom Only (CERN)

Pier Francesco Monni (CERN)

At the dawn of the precision era at the LHC, Monte Carlo Event 
Generators constitute the main bridge between theory and experiments. In 
this scenario, it becomes paramount to understand quantitatively the 
perturbative accuracy of the underlying algorithms in view of assessing 
precisely their theory uncertainty, and of formulating new methods to 
achieve higher perturbative accuracy in the simulations. In parallel, 
this theoretical progress crucially requires an efficient exploitation 
of modern computing technology to address the substantial CPU demand for 
event simulations at modern collider experiments. The goal of this 
workshop is to bring together leading experts in the field to analyse 
recent progress and encourage new collaborations to tackle the main open 
problems.

Organizers: Silvia Ferrario Ravasio (IPPP, Durham), Pier Monni (CERN), Stefan Prestel (Lund Univ.), Emanuele Re (LAPTH, Annecy), Peter Richardson (CERN).

Application deadline : March 29, 2020 h23:59

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Due to the COVID-19 pandemic, the workshop will be divided into two sessions as follows:
 

•  A one-week virtual workshop in the period 29 June - 3 July 2020. This will serve as a kick-off meeting, and to trigger discussions that can be continued in the next session.
   
•  A one-week physical workshop in the period 23 - 27 August 2021, where we will have more in-depth discussions about the topics triggered by the kick-off meeting. 

Monday 29 June

1 Goal of the workshop & experimental needs

Zoom: https://cern.zoom.us/j/94792242433?pwd=UndUcjEvVW5xVW1Dd3FMN1F5TGZUQT09

Password: 403625

Speakers: Christian Gutschow (UCL (UK)), Pier Francesco Monni (CERN)

2 Accuracy of parton showers

Zoom: https://cern.zoom.us/j/94792242433?pwd=UndUcjEvVW5xVW1Dd3FMN1F5TGZUQT09

Password: 403625

Speakers: Frederic Alexandre Dreyer (Oxford), Jack Holguin (The University of Manchester), silvia ferrario ravasio

DiscussionPS.pdf

some_discussion_points.pdf

Accuracy of parton showers

Tuesday 30 June

3 Discussion

4 Higher order kernels in parton showers

Zoom: https://cern.zoom.us/j/94792242433?pwd=UndUcjEvVW5xVW1Dd3FMN1F5TGZUQT09

Password: 403625

Speakers: Peter Skands (Monash University (AU)), Stefan Hoche (Fermi National Accelerator Lab. (US)), Stefan Prestel (Fermi National Accelerator Laboratory)

new-slides.pdf

slides20200630.pdf

Wednesday 1 July

5 Discussion

6 Matching of NNLO QCD to parton showers

Zoom: https://cern.zoom.us/j/94792242433?pwd=UndUcjEvVW5xVW1Dd3FMN1F5TGZUQT09

Password: 403625

Speakers: Emanuele Re (Unite Reseaux du CNRS (FR)), Simone Alioli (Universita & INFN, Milano-Bicocca (IT)), Stefan Prestel (University of Lund)

DiscussionNNLOPS.pdf

Thursday 2 July

7 Discussion

8 Subleading colour corrections, non global and super leading logarithms

Zoom: https://cern.zoom.us/j/94792242433?pwd=UndUcjEvVW5xVW1Dd3FMN1F5TGZUQT09

Password: 403625

Speakers: Simon Platzer (University of Vienna (AT)), Thomas Becher (University of Bern), Zoltan Nagy

DiscussionSLC.pdf

Friday 3 July

9 Discussion

Speaker: Simon Platzer (University of Vienna (AT))

10 Computational aspects & Outlook

Zoom: https://cern.zoom.us/j/94792242433?pwd=UndUcjEvVW5xVW1Dd3FMN1F5TGZUQT09

Password: 403625

Speakers: Gregory Soyez (IPhT, CEA Saclay), Paolo Torrielli (Universita e INFN Torino (IT)), Rob Verheyen

slides20200703.pdf