Workshop on Sampling Particles on the Cooper-Frye Transition Surface (2013)
Goal of the Workshop
The topic of the workshop is our present understanding of sampling particles on a fluid-Cooper Frye hypersurface. There are a lot of different algorithms on the market with different features concerning e.g. conservation laws in a local or global fashion. There are also still open issues concerning the viscous corrections to the distribution functions, the applicability of a hybrid framework to anisotropic hydrodynamics and how to preserve momentum correlations in the context of event-by-event fluctuations. The goal of the workshop is to define the status and potentially set up a taskforce to put together a community wide standard on how to perform the particle sampling in the most efficient way.
- H. Petersen
- P. Huovinen
- M. Bleicher
- E. Bratkovskaya
Questions to be addressed
- How is the hypersurface determined? Which switching criterion is used and why?
- which EoS are you using? To which hadron transport model are you matching?
- Do you first sample momentum space and then coordinate space or the other way round?
- How are the momentum distributions sampled and in which frame?
- What criterion stops the sampling, i.e. how the number of sampled particles is fixed, how the chemical composition of the sampled ensemble is fixed?
- Are conservation laws obeyed? Which and how? Conservation of momentum in particular?
- How do you cope with negative contributions?
- How are viscous corrections to distribution function treated?
- Which programming language and why?
Location and Accommodation
The workshop will be held from July 18-20th 2013 at Martin-Niemoeller-Haus in Schmitten, Germany. It is located roughly 35 minutes by car from Frankfurt airport in the Taunus. Surrounded by smaller mountains like the Feldberg and nice forest we expect a great working atmosphere.
Cost for accommodation in single rooms is: ~50 EUR per night
The hotel can be paid by VISA or Mastercard (no American Express).
We will take care of booking the rooms for you according to the arrival/departure information provided in the registration.
How to get there
Information in german by the Martin-Niemöller-Haus can be found here.
From the airport:
1) S- Bahn S8/9 direction Frankfurt City to 'Hauptwache' ~15 minutes
2) U-Bahn (subway) U3 from 'Hauptwache' to the end station 'Oberursel Hohemark' ~45 minutes
3) Bus number 50 direction 'Graevenwiesbach' to the stop 'Schmitten-Arnoldshain Forsthaus' ~15 minutes
From the main train station ('Hauptbahnhof'):
1) Any S-Bahn direction south or east Frankfurt to the station 'Hauptwache' ~3 minutes
Steps 2) and 3) as mentioned above.
You can check timetables for the route from 'Flughafen Regionalbahnhof' to 'Arnoldshain-Forsthaus' here.
If you arrive late in the evening or need to catch a flight in the early morning or public transport is inconvenient for any other reason, please send us an email to sampling2013_at_fias.uni-frankfurt.de with your arrival and departure details (flight/train number and time). According to your needs, we will arrange transportation from the airport, train station or 'Oberursel Hohemark'.
Address: Am Eichwaldsfeld 3, 61389 Schmitten
If you plan to take a taxi from the airport, there is the option to get a flat rate of 70 EUR per ride, if we organise it ahead via the Martin-Niemöller-Haus.
Please contact the taxi company 'Albert' directly via phone +49-6082-4444 and mention the workshop at the Martin-Niemöller-Haus, if you want to reserve one.
The fee covers all local expenses and is: 150 EUR
The fee has to be paid by bank transfer before the meeting (deadline July 10th 2013) to this account:
Account holder name: FIAS
Account number: 0444224 00
Routing number: 50070010
Please make sure to indicate your name and the workshop identifier 'TRASA' on the transfer.
If you do not have a bank account in Europe, it will be possible to pay the fee in cash at the conference site to avoid large bank transfer fees.
The program will consist of 2 1/2 days starting on Thursday morning and ending on Saturday afternoon. For each talk 30 minutes are allocated +15 minutes for discussion. Two additional discussion sessions of 2 hours length are foreseen. The schedule for the workshop can be found here. The presentation slides are available here.
A list of participants can be found here.
A second workshop dedicated to transport theory in heavy ion collisions will be held from July 15th-17th 2013 at the same location. Please adjust the arrival dates in your registration email accordingly, if you plan to attend the second workshop as well.